diff options
Diffstat (limited to 'indra/newview/app_settings/shaders/class1/deferred')
25 files changed, 565 insertions, 235 deletions
diff --git a/indra/newview/app_settings/shaders/class1/deferred/aoUtil.glsl b/indra/newview/app_settings/shaders/class1/deferred/aoUtil.glsl index 49470f0e39..ce018623a8 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/aoUtil.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/aoUtil.glsl @@ -23,8 +23,7 @@ * $/LicenseInfo$ */ -uniform sampler2D noiseMap; -uniform sampler2D normalMap; +uniform sampler2D noiseMap; uniform sampler2D depthMap; uniform float ssao_radius; diff --git a/indra/newview/app_settings/shaders/class1/deferred/avatarShadowF.glsl b/indra/newview/app_settings/shaders/class1/deferred/avatarShadowF.glsl index 438e1d1b33..37dcbbd328 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/avatarShadowF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/avatarShadowF.glsl @@ -27,8 +27,6 @@ out vec4 frag_color; -uniform sampler2D diffuseMap; - void main() { frag_color = vec4(1,1,1,1); diff --git a/indra/newview/app_settings/shaders/class1/deferred/blurLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/blurLightF.glsl index 8627ab1852..23a3ca4911 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/blurLightF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/blurLightF.glsl @@ -1,24 +1,24 @@ -/** +/** * @file blurLightF.glsl * * $LicenseInfo:firstyear=2007&license=viewerlgpl$ * Second Life Viewer Source Code * Copyright (C) 2007, Linden Research, Inc. - * + * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License only. - * + * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. - * + * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * + * * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ @@ -27,7 +27,6 @@ out vec4 frag_color; -uniform sampler2D normalMap; uniform sampler2D lightMap; uniform float dist_factor; @@ -42,16 +41,16 @@ in vec2 vary_fragcoord; vec4 getPosition(vec2 pos_screen); vec4 getNorm(vec2 pos_screen); -void main() +void main() { vec2 tc = vary_fragcoord.xy; vec4 norm = getNorm(tc); vec3 pos = getPosition(tc).xyz; vec4 ccol = texture(lightMap, tc).rgba; - + vec2 dlt = kern_scale * delta / (1.0+norm.xy*norm.xy); dlt /= max(-pos.z*dist_factor, 1.0); - + vec2 defined_weight = kern[0].xy; // special case the first (centre) sample's weight in the blur; we have to sample it anyway so we get it for 'free' vec4 col = defined_weight.xyxx * ccol; @@ -75,15 +74,15 @@ void main() k[1] = (k[0]+k[2])*0.5f; k[3] = (k[2]+k[4])*0.5f; k[5] = (k[4]+k[6])*0.5f; - + for (int i = 1; i < 7; i++) { vec2 samptc = tc + k[i].z*dlt*2.0; samptc /= screen_res; - vec3 samppos = getPosition(samptc).xyz; + vec3 samppos = getPosition(samptc).xyz; float d = dot(norm.xyz, samppos.xyz-pos.xyz);// dist from plane - + if (d*d <= pointplanedist_tolerance_pow2) { col += texture(lightMap, samptc)*k[i].xyxx; @@ -95,10 +94,10 @@ void main() { vec2 samptc = tc - k[i].z*dlt*2.0; samptc /= screen_res; - vec3 samppos = getPosition(samptc).xyz; + vec3 samppos = getPosition(samptc).xyz; float d = dot(norm.xyz, samppos.xyz-pos.xyz);// dist from plane - + if (d*d <= pointplanedist_tolerance_pow2) { col += texture(lightMap, samptc)*k[i].xyxx; @@ -108,7 +107,7 @@ void main() col /= defined_weight.xyxx; //col.y *= col.y; - + frag_color = max(col, vec4(0)); #ifdef IS_AMD_CARD diff --git a/indra/newview/app_settings/shaders/class1/deferred/deferredUtil.glsl b/indra/newview/app_settings/shaders/class1/deferred/deferredUtil.glsl index 01543732d0..ab0e4fd4d8 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/deferredUtil.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/deferredUtil.glsl @@ -50,7 +50,6 @@ SOFTWARE. uniform sampler2D normalMap; uniform sampler2D depthMap; -uniform sampler2D emissiveRect; uniform sampler2D projectionMap; // rgba uniform sampler2D brdfLut; @@ -487,6 +486,43 @@ vec3 pbrPunctual(vec3 diffuseColor, vec3 specularColor, return clamp(color, vec3(0), vec3(10)); } +vec3 pbrCalcPointLightOrSpotLight(vec3 diffuseColor, vec3 specularColor, + float perceptualRoughness, + float metallic, + vec3 n, // normal + vec3 p, // pixel position + vec3 v, // view vector (negative normalized pixel position) + vec3 lp, // light position + vec3 ld, // light direction (for spotlights) + vec3 lightColor, + float lightSize, float falloff, float is_pointlight, float ambiance) +{ + vec3 color = vec3(0,0,0); + + vec3 lv = lp.xyz - p; + + float lightDist = length(lv); + + float dist = lightDist / lightSize; + if (dist <= 1.0) + { + lv /= lightDist; + + float dist_atten = calcLegacyDistanceAttenuation(dist, falloff); + + // spotlight coefficient. + float spot = max(dot(-ld, lv), is_pointlight); + // spot*spot => GL_SPOT_EXPONENT=2 + float spot_atten = spot*spot; + + vec3 intensity = spot_atten * dist_atten * lightColor * 3.0; //magic number to balance with legacy materials + + color = intensity*pbrPunctual(diffuseColor, specularColor, perceptualRoughness, metallic, n.xyz, v, lv); + } + + return color; +} + void calcDiffuseSpecular(vec3 baseColor, float metallic, inout vec3 diffuseColor, inout vec3 specularColor) { vec3 f0 = vec3(0.04); diff --git a/indra/newview/app_settings/shaders/class1/deferred/exposureF.glsl b/indra/newview/app_settings/shaders/class1/deferred/exposureF.glsl index eff7221ae7..67890032df 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/exposureF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/exposureF.glsl @@ -1,28 +1,28 @@ -/** +/** * @file exposureF.glsl * * $LicenseInfo:firstyear=2023&license=viewerlgpl$ * Second Life Viewer Source Code * Copyright (C) 2023, Linden Research, Inc. - * + * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License only. - * + * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. - * + * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * + * * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ - + /*[EXTRA_CODE_HERE]*/ out vec4 frag_color; @@ -43,7 +43,7 @@ float lum(vec3 col) return dot(l, col); } -void main() +void main() { vec2 tc = vec2(0.5,0.5); @@ -53,13 +53,13 @@ void main() L /= max_L; L = pow(L, 2.0); float s = mix(dynamic_exposure_params.z, dynamic_exposure_params.y, L); - + #ifdef USE_LAST_EXPOSURE float prev = texture(exposureMap, vec2(0.5,0.5)).r; s = mix(prev, s, min(dt*2.0*abs(prev-s), 0.04)); #endif - + frag_color = max(vec4(s, s, s, dt), vec4(0.0)); } diff --git a/indra/newview/app_settings/shaders/class1/deferred/fullbrightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/fullbrightF.glsl index 52dfed06ae..2b9cc6ae5a 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/fullbrightF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/fullbrightF.glsl @@ -1,28 +1,28 @@ -/** +/** * @file deferred/fullbrightF.glsl * * $LicenseInfo:firstyear=2007&license=viewerlgpl$ * Second Life Viewer Source Code * Copyright (C) 2007, Linden Research, Inc. - * + * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License only. - * + * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. - * + * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * + * * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ - + /*[EXTRA_CODE_HERE]*/ out vec4 frag_color; @@ -52,7 +52,7 @@ vec4 applySkyAndWaterFog(vec3 pos, vec3 additive, vec3 atten, vec4 color); void mirrorClip(vec3 pos); -void main() +void main() { mirrorClip(vary_position); #ifdef IS_ALPHA @@ -90,7 +90,7 @@ void main() calcAtmosphericVars(pos.xyz, vec3(0), 1.0, sunlit, amblit, additive, atten); color.rgb = applySkyAndWaterFog(pos, additive, atten, color).rgb; - + #endif #endif diff --git a/indra/newview/app_settings/shaders/class1/deferred/globalF.glsl b/indra/newview/app_settings/shaders/class1/deferred/globalF.glsl index 7e3e7d9271..a1b7a4b11f 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/globalF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/globalF.glsl @@ -1,24 +1,24 @@ -/** +/** * @file class1/deferred/globalF.glsl * * $LicenseInfo:firstyear=2024&license=viewerlgpl$ * Second Life Viewer Source Code * Copyright (C) 2024, Linden Research, Inc. - * + * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License only. - * + * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. - * + * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * + * * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ diff --git a/indra/newview/app_settings/shaders/class1/deferred/luminanceF.glsl b/indra/newview/app_settings/shaders/class1/deferred/luminanceF.glsl index 95b2f80e06..3432bf07ef 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/luminanceF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/luminanceF.glsl @@ -1,32 +1,32 @@ -/** +/** * @file luminanceF.glsl * * $LicenseInfo:firstyear=2023&license=viewerlgpl$ * Second Life Viewer Source Code * Copyright (C) 2023, Linden Research, Inc. - * + * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License only. - * + * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. - * + * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * + * * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ - + /*[EXTRA_CODE_HERE]*/ -// take a luminance sample of diffuseRect and emissiveRect +// take a luminance sample of diffuseRect and emissiveRect out vec4 frag_color; @@ -43,12 +43,12 @@ float lum(vec3 col) return dot(l, col); } -void main() +void main() { vec2 tc = vary_fragcoord*0.6+0.2; tc.y -= 0.1; // HACK - nudge exposure sample down a little bit to favor ground over sky vec3 c = texture(diffuseRect, tc).rgb; - + vec4 norm = texture(normalMap, tc); if (!GET_GBUFFER_FLAG(GBUFFER_FLAG_HAS_HDRI) && diff --git a/indra/newview/app_settings/shaders/class1/deferred/moonF.glsl b/indra/newview/app_settings/shaders/class1/deferred/moonF.glsl index 6ef556d7e8..585de99e1d 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/moonF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/moonF.glsl @@ -1,28 +1,28 @@ -/** +/** * @file class1\deferred\moonF.glsl * * $LicenseInfo:firstyear=2005&license=viewerlgpl$ * Second Life Viewer Source Code * Copyright (C) 2005, 2020 Linden Research, Inc. - * + * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License only. - * + * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. - * + * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * + * * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ - + /*[EXTRA_CODE_HERE]*/ out vec4 frag_data[4]; @@ -34,7 +34,7 @@ uniform sampler2D diffuseMap; in vec2 vary_texcoord0; -void main() +void main() { // Restore Pre-EEP alpha fade moon near horizon float fade = 1.0; diff --git a/indra/newview/app_settings/shaders/class1/deferred/normgenF.glsl b/indra/newview/app_settings/shaders/class1/deferred/normgenF.glsl index 902746366d..607a8c6ef6 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/normgenF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/normgenF.glsl @@ -25,24 +25,53 @@ /*[EXTRA_CODE_HERE]*/ + + +// generate a normal map using an approximation of the old emboss bump map "brightness/darkness" technique +// srcMap is a source color image, output should be a normal + out vec4 frag_color; -uniform sampler2D alphaMap; +uniform sampler2D srcMap; in vec2 vary_texcoord0; uniform float stepX; uniform float stepY; uniform float norm_scale; +uniform int bump_code; + +#define BE_BRIGHTNESS 1 +#define BE_DARKNESS 2 + +// get luminance or inverse luminance depending on bump_code +float getBumpValue(vec2 texcoord) +{ + vec3 c = texture(srcMap, texcoord).rgb; + + vec3 WEIGHT = vec3(0.2995, 0.5875, 0.1145); + + float l = dot(c, WEIGHT); + + if (bump_code == BE_DARKNESS) + { + l = 1.0 - l; + } + + return l; +} + void main() { - float c = texture(alphaMap, vary_texcoord0).r; + float c = getBumpValue(vary_texcoord0); + + float scaler = 512.0; - vec3 right = vec3(norm_scale, 0, (texture(alphaMap, vary_texcoord0+vec2(stepX, 0)).r-c)*255); - vec3 left = vec3(-norm_scale, 0, (texture(alphaMap, vary_texcoord0-vec2(stepX, 0)).r-c)*255); - vec3 up = vec3(0, -norm_scale, (texture(alphaMap, vary_texcoord0-vec2(0, stepY)).r-c)*255); - vec3 down = vec3(0, norm_scale, (texture(alphaMap, vary_texcoord0+vec2(0, stepY)).r-c)*255); + vec3 right = vec3(norm_scale, 0, (getBumpValue(vary_texcoord0+vec2(stepX, 0))-c)*scaler); + vec3 left = vec3(-norm_scale, 0, (getBumpValue(vary_texcoord0-vec2(stepX, 0))-c)*scaler); + vec3 up = vec3(0, -norm_scale, (getBumpValue(vary_texcoord0-vec2(0, stepY))-c)*scaler); + vec3 down = vec3(0, norm_scale, (getBumpValue(vary_texcoord0+vec2(0, stepY))-c)*scaler); vec3 norm = cross(right, down) + cross(down, left) + cross(left,up) + cross(up, right); diff --git a/indra/newview/app_settings/shaders/class1/deferred/pbrShadowAlphaMaskF.glsl b/indra/newview/app_settings/shaders/class1/deferred/pbrShadowAlphaMaskF.glsl index 35b7602569..07a2218db2 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/pbrShadowAlphaMaskF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/pbrShadowAlphaMaskF.glsl @@ -1,24 +1,24 @@ -/** +/** * @file pbrShadowAlphaMaskF.glsl * * $LicenseInfo:firstyear=2023&license=viewerlgpl$ * Second Life Viewer Source Code * Copyright (C) 2023, Linden Research, Inc. - * + * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License only. - * + * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. - * + * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * + * * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ @@ -33,7 +33,7 @@ in vec4 vertex_color; in vec2 vary_texcoord0; uniform float minimum_alpha; -void main() +void main() { float alpha = texture(diffuseMap,vary_texcoord0.xy).a * vertex_color.a; diff --git a/indra/newview/app_settings/shaders/class1/deferred/pbralphaV.glsl b/indra/newview/app_settings/shaders/class1/deferred/pbralphaV.glsl index d0fc362db9..66adf50fa9 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/pbralphaV.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/pbralphaV.glsl @@ -51,8 +51,6 @@ uniform vec4[2] texture_emissive_transform; out vec3 vary_fragcoord; -uniform float near_clip; - in vec3 position; in vec4 diffuse_color; in vec3 normal; @@ -71,7 +69,7 @@ flat out float vary_sign; out vec3 vary_normal; vec2 texture_transform(vec2 vertex_texcoord, vec4[2] khr_gltf_transform, mat4 sl_animation_transform); -vec3 tangent_space_transform(vec4 vertex_tangent, vec3 vertex_normal, vec4[2] khr_gltf_transform, mat4 sl_animation_transform); +vec4 tangent_space_transform(vec4 vertex_tangent, vec3 vertex_normal, vec4[2] khr_gltf_transform, mat4 sl_animation_transform); void main() @@ -88,7 +86,7 @@ void main() #endif gl_Position = vert; - vary_fragcoord.xyz = vert.xyz + vec3(0,0,near_clip); + vary_fragcoord.xyz = vert.xyz; base_color_texcoord = texture_transform(texcoord0, texture_base_color_transform, texture_matrix0); normal_texcoord = texture_transform(texcoord0, texture_normal_transform, texture_matrix0); @@ -105,8 +103,9 @@ void main() n = normalize(n); - vary_tangent = normalize(tangent_space_transform(vec4(t, tangent.w), n, texture_normal_transform, texture_matrix0)); - vary_sign = tangent.w; + vec4 transformed_tangent = tangent_space_transform(vec4(t, tangent.w), n, texture_normal_transform, texture_matrix0); + vary_tangent = normalize(transformed_tangent.xyz); + vary_sign = transformed_tangent.w; vary_normal = n; vertex_color = diffuse_color; diff --git a/indra/newview/app_settings/shaders/class1/deferred/pbropaqueF.glsl b/indra/newview/app_settings/shaders/class1/deferred/pbropaqueF.glsl index 380d493636..b521081af9 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/pbropaqueF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/pbropaqueF.glsl @@ -1,24 +1,24 @@ -/** +/** * @file pbropaqueF.glsl * * $LicenseInfo:firstyear=2022&license=viewerlgpl$ * Second Life Viewer Source Code * Copyright (C) 2022, Linden Research, Inc. - * + * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License only. - * + * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. - * + * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * + * * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ @@ -28,7 +28,7 @@ #ifndef IS_HUD -// deferred opaque implementation +// deferred opaque implementation uniform sampler2D diffuseMap; //always in sRGB space @@ -85,7 +85,7 @@ void main() float sign = vary_sign; vec3 vN = vary_normal; vec3 vT = vary_tangent.xyz; - + vec3 vB = sign * cross(vN, vT); vec3 tnorm = normalize( vNt.x * vT + vNt.y * vB + vNt.z * vN ); @@ -95,7 +95,7 @@ void main() // roughness 0.0 // metal 0.0 vec3 spec = texture(specularMap, metallic_roughness_texcoord.xy).rgb; - + spec.g *= roughnessFactor; spec.b *= metallicFactor; diff --git a/indra/newview/app_settings/shaders/class1/deferred/pbropaqueV.glsl b/indra/newview/app_settings/shaders/class1/deferred/pbropaqueV.glsl index fd020afd57..0ad9bf5e4b 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/pbropaqueV.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/pbropaqueV.glsl @@ -63,7 +63,7 @@ out vec3 vary_normal; out vec3 vary_position; vec2 texture_transform(vec2 vertex_texcoord, vec4[2] khr_gltf_transform, mat4 sl_animation_transform); -vec3 tangent_space_transform(vec4 vertex_tangent, vec3 vertex_normal, vec4[2] khr_gltf_transform, mat4 sl_animation_transform); +vec4 tangent_space_transform(vec4 vertex_tangent, vec3 vertex_normal, vec4[2] khr_gltf_transform, mat4 sl_animation_transform); void main() { @@ -97,8 +97,9 @@ void main() n = normalize(n); - vary_tangent = normalize(tangent_space_transform(vec4(t, tangent.w), n, texture_normal_transform, texture_matrix0)); - vary_sign = tangent.w; + vec4 transformed_tangent = tangent_space_transform(vec4(t, tangent.w), n, texture_normal_transform, texture_matrix0); + vary_tangent = normalize(transformed_tangent.xyz); + vary_sign = transformed_tangent.w; vary_normal = n; vertex_color = diffuse_color; diff --git a/indra/newview/app_settings/shaders/class1/deferred/pbrterrainF.glsl b/indra/newview/app_settings/shaders/class1/deferred/pbrterrainF.glsl index 0de2d348c3..410c447c64 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/pbrterrainF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/pbrterrainF.glsl @@ -1,24 +1,24 @@ -/** +/** * @file class1\deferred\terrainF.glsl * * $LicenseInfo:firstyear=2023&license=viewerlgpl$ * Second Life Viewer Source Code * Copyright (C) 2023, Linden Research, Inc. - * + * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License only. - * + * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. - * + * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * + * * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ @@ -30,8 +30,11 @@ #define TERRAIN_PBR_DETAIL_NORMAL -2 #define TERRAIN_PBR_DETAIL_METALLIC_ROUGHNESS -3 +#define TERRAIN_PAINT_TYPE_HEIGHTMAP_WITH_NOISE 0 +#define TERRAIN_PAINT_TYPE_PBR_PAINTMAP 1 + #if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3 -#define TerrainCoord vec4[2] +#define TerrainCoord vec4[3] #elif TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 1 #define TerrainCoord vec2 #endif @@ -48,6 +51,7 @@ struct TerrainMix }; TerrainMix get_terrain_mix_weights(float alpha1, float alpha2, float alphaFinal); +TerrainMix get_terrain_usage_from_weight3(vec3 weight3); struct PBRMix { @@ -75,6 +79,9 @@ PBRMix terrain_sample_and_multiply_pbr( #endif #if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_NORMAL) , sampler2D tex_vNt +#if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3 + , float transform_sign +#endif #endif #if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) , sampler2D tex_emissive @@ -94,7 +101,11 @@ PBRMix mix_pbr(PBRMix mix1, PBRMix mix2, float mix2_weight); out vec4 frag_data[4]; +#if TERRAIN_PAINT_TYPE == TERRAIN_PAINT_TYPE_HEIGHTMAP_WITH_NOISE uniform sampler2D alpha_ramp; +#elif TERRAIN_PAINT_TYPE == TERRAIN_PAINT_TYPE_PBR_PAINTMAP +uniform sampler2D paint_map; +#endif // https://registry.khronos.org/glTF/specs/2.0/glTF-2.0.html#additional-textures uniform sampler2D detail_0_base_color; @@ -130,36 +141,60 @@ uniform vec3[4] emissiveColors; #endif uniform vec4 minimum_alphas; // PBR alphaMode: MASK, See: mAlphaCutoff, setAlphaCutoff() -#if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3 -in vec4[2] vary_coords; -#endif in vec3 vary_position; in vec3 vary_normal; -in vec3 vary_tangent; -flat in float vary_sign; +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_NORMAL) +in vec3 vary_tangents[4]; +flat in float vary_signs[4]; +#endif + +// vary_texcoord* are used for terrain composition, vary_coords are used for terrain UVs +#if TERRAIN_PAINT_TYPE == TERRAIN_PAINT_TYPE_HEIGHTMAP_WITH_NOISE in vec4 vary_texcoord0; in vec4 vary_texcoord1; +#elif TERRAIN_PAINT_TYPE == TERRAIN_PAINT_TYPE_PBR_PAINTMAP +in vec2 vary_texcoord; +#endif +#if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3 +in vec4[10] vary_coords; +#elif TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 1 +in vec4[2] vary_coords; +#endif void mirrorClip(vec3 position); float terrain_mix(TerrainMix tm, vec4 tms4); +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_NORMAL) +// from mikktspace.com +vec3 mikktspace(vec3 vNt, vec3 vT, float sign) +{ + vec3 vN = vary_normal; + + vec3 vB = sign * cross(vN, vT); + vec3 tnorm = normalize( vNt.x * vT + vNt.y * vB + vNt.z * vN ); + + tnorm *= gl_FrontFacing ? 1.0 : -1.0; + + return tnorm; +} +#endif + void main() { // Make sure we clip the terrain if we're in a mirror. mirrorClip(vary_position); -#if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3 - TerrainCoord terrain_texcoord = vary_coords; -#elif TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 1 - TerrainCoord terrain_texcoord = vary_texcoord0.xy; -#endif - + TerrainMix tm; +#if TERRAIN_PAINT_TYPE == TERRAIN_PAINT_TYPE_HEIGHTMAP_WITH_NOISE float alpha1 = texture(alpha_ramp, vary_texcoord0.zw).a; float alpha2 = texture(alpha_ramp,vary_texcoord1.xy).a; float alphaFinal = texture(alpha_ramp, vary_texcoord1.zw).a; - TerrainMix tm = get_terrain_mix_weights(alpha1, alpha2, alphaFinal); + tm = get_terrain_mix_weights(alpha1, alpha2, alphaFinal); +#elif TERRAIN_PAINT_TYPE == TERRAIN_PAINT_TYPE_PBR_PAINTMAP + tm = get_terrain_usage_from_weight3(texture(paint_map, vary_texcoord).xyz); +#endif #if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_OCCLUSION) // RGB = Occlusion, Roughness, Metal @@ -182,9 +217,19 @@ void main() PBRMix pbr_mix = init_pbr_mix(); PBRMix mix2; + TerrainCoord terrain_texcoord; switch (tm.type & MIX_X) { case MIX_X: +#if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3 + terrain_texcoord[0].xy = vary_coords[0].xy; + terrain_texcoord[0].zw = vary_coords[0].zw; + terrain_texcoord[1].xy = vary_coords[1].xy; + terrain_texcoord[1].zw = vary_coords[1].zw; + terrain_texcoord[2].xy = vary_coords[2].xy; +#elif TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 1 + terrain_texcoord = vary_coords[0].xy; +#endif mix2 = terrain_sample_and_multiply_pbr( terrain_texcoord , detail_0_base_color @@ -193,6 +238,9 @@ void main() #endif #if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_NORMAL) , detail_0_normal +#if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3 + , vary_signs[0] +#endif #endif #if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) , detail_0_emissive @@ -207,6 +255,9 @@ void main() , emissiveColors[0] #endif ); +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_NORMAL) + mix2.vNt = mikktspace(mix2.vNt, vary_tangents[0], vary_signs[0]); +#endif pbr_mix = mix_pbr(pbr_mix, mix2, tm.weight.x); break; default: @@ -215,6 +266,15 @@ void main() switch (tm.type & MIX_Y) { case MIX_Y: +#if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3 + terrain_texcoord[0].xy = vary_coords[2].zw; + terrain_texcoord[0].zw = vary_coords[3].xy; + terrain_texcoord[1].xy = vary_coords[3].zw; + terrain_texcoord[1].zw = vary_coords[4].xy; + terrain_texcoord[2].xy = vary_coords[4].zw; +#elif TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 1 + terrain_texcoord = vary_coords[0].zw; +#endif mix2 = terrain_sample_and_multiply_pbr( terrain_texcoord , detail_1_base_color @@ -223,6 +283,9 @@ void main() #endif #if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_NORMAL) , detail_1_normal +#if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3 + , vary_signs[1] +#endif #endif #if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) , detail_1_emissive @@ -237,6 +300,9 @@ void main() , emissiveColors[1] #endif ); +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_NORMAL) + mix2.vNt = mikktspace(mix2.vNt, vary_tangents[1], vary_signs[1]); +#endif pbr_mix = mix_pbr(pbr_mix, mix2, tm.weight.y); break; default: @@ -245,6 +311,15 @@ void main() switch (tm.type & MIX_Z) { case MIX_Z: +#if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3 + terrain_texcoord[0].xy = vary_coords[5].xy; + terrain_texcoord[0].zw = vary_coords[5].zw; + terrain_texcoord[1].xy = vary_coords[6].xy; + terrain_texcoord[1].zw = vary_coords[6].zw; + terrain_texcoord[2].xy = vary_coords[7].xy; +#elif TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 1 + terrain_texcoord = vary_coords[1].xy; +#endif mix2 = terrain_sample_and_multiply_pbr( terrain_texcoord , detail_2_base_color @@ -253,6 +328,9 @@ void main() #endif #if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_NORMAL) , detail_2_normal +#if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3 + , vary_signs[2] +#endif #endif #if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) , detail_2_emissive @@ -267,6 +345,9 @@ void main() , emissiveColors[2] #endif ); +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_NORMAL) + mix2.vNt = mikktspace(mix2.vNt, vary_tangents[2], vary_signs[2]); +#endif pbr_mix = mix_pbr(pbr_mix, mix2, tm.weight.z); break; default: @@ -275,6 +356,15 @@ void main() switch (tm.type & MIX_W) { case MIX_W: +#if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3 + terrain_texcoord[0].xy = vary_coords[7].zw; + terrain_texcoord[0].zw = vary_coords[8].xy; + terrain_texcoord[1].xy = vary_coords[8].zw; + terrain_texcoord[1].zw = vary_coords[9].xy; + terrain_texcoord[2].xy = vary_coords[9].zw; +#elif TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 1 + terrain_texcoord = vary_coords[1].zw; +#endif mix2 = terrain_sample_and_multiply_pbr( terrain_texcoord , detail_3_base_color @@ -283,6 +373,9 @@ void main() #endif #if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_NORMAL) , detail_3_normal +#if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3 + , vary_signs[3] +#endif #endif #if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) , detail_3_emissive @@ -297,6 +390,9 @@ void main() , emissiveColors[3] #endif ); +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_NORMAL) + mix2.vNt = mikktspace(mix2.vNt, vary_tangents[3], vary_signs[3]); +#endif pbr_mix = mix_pbr(pbr_mix, mix2, tm.weight.w); break; default: @@ -311,20 +407,12 @@ void main() float base_color_factor_alpha = terrain_mix(tm, vec4(baseColorFactors[0].z, baseColorFactors[1].z, baseColorFactors[2].z, baseColorFactors[3].z)); #if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_NORMAL) - // from mikktspace.com - vec3 vNt = pbr_mix.vNt; - vec3 vN = vary_normal; - vec3 vT = vary_tangent.xyz; - - vec3 vB = vary_sign * cross(vN, vT); - vec3 tnorm = normalize( vNt.x * vT + vNt.y * vB + vNt.z * vN ); - - tnorm *= gl_FrontFacing ? 1.0 : -1.0; + vec3 tnorm = normalize(pbr_mix.vNt); #else vec3 tnorm = vary_normal; - tnorm *= gl_FrontFacing ? 1.0 : -1.0; #endif - + tnorm *= gl_FrontFacing ? 1.0 : -1.0; + #if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) #define mix_emissive pbr_mix.emissive diff --git a/indra/newview/app_settings/shaders/class1/deferred/pbrterrainUtilF.glsl b/indra/newview/app_settings/shaders/class1/deferred/pbrterrainUtilF.glsl index 935c3f9301..dc43007dca 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/pbrterrainUtilF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/pbrterrainUtilF.glsl @@ -1,24 +1,24 @@ -/** +/** * @file class1\deferred\pbrterrainUtilF.glsl * * $LicenseInfo:firstyear=2023&license=viewerlgpl$ * Second Life Viewer Source Code * Copyright (C) 2023, Linden Research, Inc. - * + * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License only. - * + * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. - * + * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * + * * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ @@ -51,7 +51,12 @@ #define TERRAIN_PBR_DETAIL_NORMAL -2 #define TERRAIN_PBR_DETAIL_METALLIC_ROUGHNESS -3 +#define TERRAIN_PAINT_TYPE_HEIGHTMAP_WITH_NOISE 0 +#define TERRAIN_PAINT_TYPE_PBR_PAINTMAP 1 + +#if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3 in vec3 vary_vertex_normal; +#endif vec3 srgb_to_linear(vec3 c); @@ -202,6 +207,45 @@ TerrainMix get_terrain_mix_weights(float alpha1, float alpha2, float alphaFinal) return tm; } +// A paintmap weight applier for 4 swatches. The input saves a channel by not +// storing swatch 1, and assuming the weights of the 4 swatches add to 1. +// The components of weight3 should be between 0 and 1 +// The sum of the components of weight3 should be between 0 and 1 +TerrainMix get_terrain_usage_from_weight3(vec3 weight3) +{ + // These steps ensure the output weights add to between 0 and 1 + weight3.xyz = max(vec3(0.0), weight3.xyz); + weight3.xyz /= max(1.0, weight3.x + weight3.y + weight3.z); + + TerrainMix tm; + + // Extract the first weight from the other weights + tm.weight.x = 1.0 - (weight3.x + weight3.y + weight3.z); + tm.weight.yzw = weight3.xyz; + ivec4 usage = max(ivec4(0), ivec4(ceil(tm.weight))); + + tm.type = (usage.x * MIX_X) | + (usage.y * MIX_Y) | + (usage.z * MIX_Z) | + (usage.w * MIX_W); + return tm; +} + +// Inverse of get_terrain_usage_from_weight3, excluding usage flags +// The components of weight should be between 0 and 1 +// The sum of the components of weight should be 1 +vec3 get_weight3_from_terrain_weight(vec4 weight) +{ + // These steps ensure the input weights add to 1 + weight = max(vec4(0.0), weight); + weight.x += 1.0 - sign(weight.x + weight.y + weight.z + weight.w); + weight /= weight.x + weight.y + weight.z + weight.w; + + // Then return the input weights with the first weight truncated + return weight.yzw; +} + +#if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3 TerrainTriplanar _t_triplanar() { float sharpness = TERRAIN_TRIPLANAR_BLEND_FACTOR; @@ -219,6 +263,8 @@ TerrainTriplanar _t_triplanar() ((usage.z) * SAMPLE_Z); return tw; } +#endif + // Assume weights add to 1 float terrain_mix(TerrainMix tm, vec4 tms4) @@ -233,17 +279,12 @@ float terrain_mix(TerrainMix tm, vec4 tms4) // Triplanar mapping // Pre-transformed texture coordinates for each axial uv slice (Packing: xy, yz, (-x)z, unused) -#define TerrainCoord vec4[2] +#define TerrainCoord vec4[3] -vec2 _t_uv(vec2 uv_unflipped, float sign_or_zero) +// If sign_or_zero is positive, use uv_unflippped, otherwise use uv_flipped +vec2 _t_uv(vec2 uv_unflipped, vec2 uv_flipped, float sign_or_zero) { - // Handle case where sign is 0 - float sign = (2.0*sign_or_zero) + 1.0; - sign /= abs(sign); - // If the vertex normal is negative, flip the texture back - // right-side up. - vec2 uv = uv_unflipped * vec2(sign, 1); - return uv; + return mix(uv_flipped, uv_unflipped, max(0.0, sign_or_zero)); } vec3 _t_normal_post_1(vec3 vNt0, float sign_or_zero) @@ -261,11 +302,12 @@ vec3 _t_normal_post_1(vec3 vNt0, float sign_or_zero) } // Triplanar-specific normal texture fixes -vec3 _t_normal_post_x(vec3 vNt0) +vec3 _t_normal_post_x(vec3 vNt0, float tangent_sign) { vec3 vNt_x = _t_normal_post_1(vNt0, sign(vary_vertex_normal.x)); // *HACK: Transform normals according to orientation of the UVs vNt_x.xy = vec2(-vNt_x.y, vNt_x.x); + vNt_x.xy *= tangent_sign; return vNt_x; } vec3 _t_normal_post_y(vec3 vNt0) @@ -290,6 +332,7 @@ PBRMix terrain_sample_pbr( #endif #if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_NORMAL) , sampler2D tex_vNt + , float tangent_sign #endif #if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) , sampler2D tex_emissive @@ -298,9 +341,9 @@ PBRMix terrain_sample_pbr( { PBRMix mix = init_pbr_mix(); -#define get_uv_x() _t_uv(terrain_coord[0].zw, sign(vary_vertex_normal.x)) -#define get_uv_y() _t_uv(terrain_coord[1].xy, sign(vary_vertex_normal.y)) -#define get_uv_z() _t_uv(terrain_coord[0].xy, sign(vary_vertex_normal.z)) +#define get_uv_x() _t_uv(terrain_coord[0].zw, terrain_coord[1].zw, sign(vary_vertex_normal.x)) +#define get_uv_y() _t_uv(terrain_coord[1].xy, terrain_coord[2].xy, sign(vary_vertex_normal.y)) +#define get_uv_z() _t_uv(terrain_coord[0].xy, vec2(0), sign(vary_vertex_normal.z)) switch (tw.type & SAMPLE_X) { case SAMPLE_X: @@ -319,7 +362,7 @@ PBRMix terrain_sample_pbr( ); #if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_NORMAL) // Triplanar-specific normal texture fix - mix_x.vNt = _t_normal_post_x(mix_x.vNt); + mix_x.vNt = _t_normal_post_x(mix_x.vNt, tangent_sign); #endif mix = mix_pbr(mix, mix_x, tw.weight.x); break; @@ -379,7 +422,7 @@ PBRMix terrain_sample_pbr( default: break; } - + return mix; } @@ -425,6 +468,9 @@ PBRMix terrain_sample_and_multiply_pbr( #endif #if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_NORMAL) , sampler2D tex_vNt +#if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3 + , float tangent_sign +#endif #endif #if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) , sampler2D tex_emissive @@ -451,6 +497,9 @@ PBRMix terrain_sample_and_multiply_pbr( #endif #if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_NORMAL) , tex_vNt +#if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3 + , tangent_sign +#endif #endif #if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) , tex_emissive diff --git a/indra/newview/app_settings/shaders/class1/deferred/pbrterrainV.glsl b/indra/newview/app_settings/shaders/class1/deferred/pbrterrainV.glsl index ed52297314..6791a22a76 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/pbrterrainV.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/pbrterrainV.glsl @@ -23,35 +23,60 @@ * $/LicenseInfo$ */ +#define TERRAIN_PBR_DETAIL_EMISSIVE 0 +#define TERRAIN_PBR_DETAIL_OCCLUSION -1 +#define TERRAIN_PBR_DETAIL_NORMAL -2 +#define TERRAIN_PBR_DETAIL_METALLIC_ROUGHNESS -3 + +#define TERRAIN_PAINT_TYPE_HEIGHTMAP_WITH_NOISE 0 +#define TERRAIN_PAINT_TYPE_PBR_PAINTMAP 1 + uniform mat3 normal_matrix; uniform mat4 texture_matrix0; uniform mat4 modelview_matrix; uniform mat4 modelview_projection_matrix; +#if TERRAIN_PAINT_TYPE == TERRAIN_PAINT_TYPE_PBR_PAINTMAP +uniform float region_scale; +#endif in vec3 position; in vec3 normal; in vec4 tangent; in vec4 diffuse_color; +#if TERRAIN_PAINT_TYPE == TERRAIN_PAINT_TYPE_HEIGHTMAP_WITH_NOISE in vec2 texcoord1; +#endif +out vec3 vary_position; +out vec3 vary_normal; #if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3 -out vec4[2] vary_coords; -#endif out vec3 vary_vertex_normal; // Used by pbrterrainUtilF.glsl -out vec3 vary_normal; -out vec3 vary_tangent; -flat out float vary_sign; +#endif +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_NORMAL) +out vec3 vary_tangents[4]; +flat out float vary_signs[4]; +#endif + +// vary_texcoord* are used for terrain composition, vary_coords are used for terrain UVs +#if TERRAIN_PAINT_TYPE == TERRAIN_PAINT_TYPE_HEIGHTMAP_WITH_NOISE out vec4 vary_texcoord0; out vec4 vary_texcoord1; -out vec3 vary_position; +#elif TERRAIN_PAINT_TYPE == TERRAIN_PAINT_TYPE_PBR_PAINTMAP +out vec2 vary_texcoord; +#endif +#if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3 +out vec4[10] vary_coords; +#elif TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 1 +out vec4[2] vary_coords; +#endif -// *HACK: tangent_space_transform should use texture_normal_transform, or maybe -// we shouldn't use tangent_space_transform at all. See the call to -// tangent_space_transform below. -uniform vec4[2] texture_base_color_transform; +// *HACK: Each material uses only one texture transform, but the KHR texture +// transform spec allows handling texture transforms separately for each +// individual texture info. +uniform vec4[5] terrain_texture_transforms; vec2 terrain_texture_transform(vec2 vertex_texcoord, vec4[2] khr_gltf_transform); -vec3 terrain_tangent_space_transform(vec4 vertex_tangent, vec3 vertex_normal, vec4[2] khr_gltf_transform); +vec4 terrain_tangent_space_transform(vec4 vertex_tangent, vec3 vertex_normal, vec4[2] khr_gltf_transform); void main() { @@ -60,37 +85,120 @@ void main() vary_position = (modelview_matrix*vec4(position.xyz, 1.0)).xyz; vec3 n = normal_matrix * normal; +#if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3 vary_vertex_normal = normal; +#endif vec3 t = normal_matrix * tangent.xyz; - vary_tangent = normalize(t); - // *TODO: Decide if we want this. It may be better to just calculate the - // tangents on-the-fly in the fragment shader, due to the subtleties of the - // effect of triplanar mapping on UVs. - // *HACK: Should be using texture_normal_transform here. The KHR texture - // transform spec requires handling texture transforms separately for each - // individual texture. - vary_tangent = normalize(terrain_tangent_space_transform(vec4(t, tangent.w), n, texture_base_color_transform)); - vary_sign = tangent.w; +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_NORMAL) + { + vec4[2] ttt; + vec4 transformed_tangent; + // material 1 + ttt[0].xyz = terrain_texture_transforms[0].xyz; + ttt[1].x = terrain_texture_transforms[0].w; + ttt[1].y = terrain_texture_transforms[1].x; + transformed_tangent = terrain_tangent_space_transform(vec4(t, tangent.w), n, ttt); + vary_tangents[0] = normalize(transformed_tangent.xyz); + vary_signs[0] = transformed_tangent.w; + // material 2 + ttt[0].xyz = terrain_texture_transforms[1].yzw; + ttt[1].xy = terrain_texture_transforms[2].xy; + transformed_tangent = terrain_tangent_space_transform(vec4(t, tangent.w), n, ttt); + vary_tangents[1] = normalize(transformed_tangent.xyz); + vary_signs[1] = transformed_tangent.w; + // material 3 + ttt[0].xy = terrain_texture_transforms[2].zw; + ttt[0].z = terrain_texture_transforms[3].x; + ttt[1].xy = terrain_texture_transforms[3].yz; + transformed_tangent = terrain_tangent_space_transform(vec4(t, tangent.w), n, ttt); + vary_tangents[2] = normalize(transformed_tangent.xyz); + vary_signs[2] = transformed_tangent.w; + // material 4 + ttt[0].x = terrain_texture_transforms[3].w; + ttt[0].yz = terrain_texture_transforms[4].xy; + ttt[1].xy = terrain_texture_transforms[4].zw; + transformed_tangent = terrain_tangent_space_transform(vec4(t, tangent.w), n, ttt); + vary_tangents[3] = normalize(transformed_tangent.xyz); + vary_signs[3] = transformed_tangent.w; + } +#endif vary_normal = normalize(n); // Transform and pass tex coords - // *HACK: texture_base_color_transform is used for all of these here, but - // the KHR texture transform spec requires handling texture transforms - // separately for each individual texture. + { + vec4[2] ttt; +#define transform_xy() terrain_texture_transform(position.xy, ttt) #if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3 - // xy - vary_coords[0].xy = terrain_texture_transform(position.xy, texture_base_color_transform); - // yz - vary_coords[0].zw = terrain_texture_transform(position.yz, texture_base_color_transform); - // (-x)z - vary_coords[1].xy = terrain_texture_transform(position.xz * vec2(-1, 1), texture_base_color_transform); +// Don't care about upside-down (transform_xy_flipped()) +#define transform_yz() terrain_texture_transform(position.yz, ttt) +#define transform_negx_z() terrain_texture_transform(position.xz * vec2(-1, 1), ttt) +#define transform_yz_flipped() terrain_texture_transform(position.yz * vec2(-1, 1), ttt) +#define transform_negx_z_flipped() terrain_texture_transform(position.xz, ttt) + // material 1 + ttt[0].xyz = terrain_texture_transforms[0].xyz; + ttt[1].x = terrain_texture_transforms[0].w; + ttt[1].y = terrain_texture_transforms[1].x; + vary_coords[0].xy = transform_xy(); + vary_coords[0].zw = transform_yz(); + vary_coords[1].xy = transform_negx_z(); + vary_coords[1].zw = transform_yz_flipped(); + vary_coords[2].xy = transform_negx_z_flipped(); + // material 2 + ttt[0].xyz = terrain_texture_transforms[1].yzw; + ttt[1].xy = terrain_texture_transforms[2].xy; + vary_coords[2].zw = transform_xy(); + vary_coords[3].xy = transform_yz(); + vary_coords[3].zw = transform_negx_z(); + vary_coords[4].xy = transform_yz_flipped(); + vary_coords[4].zw = transform_negx_z_flipped(); + // material 3 + ttt[0].xy = terrain_texture_transforms[2].zw; + ttt[0].z = terrain_texture_transforms[3].x; + ttt[1].xy = terrain_texture_transforms[3].yz; + vary_coords[5].xy = transform_xy(); + vary_coords[5].zw = transform_yz(); + vary_coords[6].xy = transform_negx_z(); + vary_coords[6].zw = transform_yz_flipped(); + vary_coords[7].xy = transform_negx_z_flipped(); + // material 4 + ttt[0].x = terrain_texture_transforms[3].w; + ttt[0].yz = terrain_texture_transforms[4].xy; + ttt[1].xy = terrain_texture_transforms[4].zw; + vary_coords[7].zw = transform_xy(); + vary_coords[8].xy = transform_yz(); + vary_coords[8].zw = transform_negx_z(); + vary_coords[9].xy = transform_yz_flipped(); + vary_coords[9].zw = transform_negx_z_flipped(); #elif TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 1 - vary_texcoord0.xy = terrain_texture_transform(position.xy, texture_base_color_transform); + // material 1 + ttt[0].xyz = terrain_texture_transforms[0].xyz; + ttt[1].x = terrain_texture_transforms[0].w; + ttt[1].y = terrain_texture_transforms[1].x; + vary_coords[0].xy = transform_xy(); + // material 2 + ttt[0].xyz = terrain_texture_transforms[1].yzw; + ttt[1].xy = terrain_texture_transforms[2].xy; + vary_coords[0].zw = transform_xy(); + // material 3 + ttt[0].xy = terrain_texture_transforms[2].zw; + ttt[0].z = terrain_texture_transforms[3].x; + ttt[1].xy = terrain_texture_transforms[3].yz; + vary_coords[1].xy = transform_xy(); + // material 4 + ttt[0].x = terrain_texture_transforms[3].w; + ttt[0].yz = terrain_texture_transforms[4].xy; + ttt[1].xy = terrain_texture_transforms[4].zw; + vary_coords[1].zw = transform_xy(); #endif + } - vec4 tc = vec4(texcoord1,0,1); +#if TERRAIN_PAINT_TYPE == TERRAIN_PAINT_TYPE_HEIGHTMAP_WITH_NOISE + vec2 tc = texcoord1.xy; vary_texcoord0.zw = tc.xy; vary_texcoord1.xy = tc.xy-vec2(2.0, 0.0); vary_texcoord1.zw = tc.xy-vec2(1.0, 0.0); +#elif TERRAIN_PAINT_TYPE == TERRAIN_PAINT_TYPE_PBR_PAINTMAP + vary_texcoord = position.xy / region_scale; +#endif } diff --git a/indra/newview/app_settings/shaders/class1/deferred/screenSpaceReflUtil.glsl b/indra/newview/app_settings/shaders/class1/deferred/screenSpaceReflUtil.glsl index cf0595ee45..e77e972873 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/screenSpaceReflUtil.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/screenSpaceReflUtil.glsl @@ -27,11 +27,11 @@ float random (vec2 uv) { - return 0; + return 0.f; } float tapScreenSpaceReflection(int totalSamples, vec2 tc, vec3 viewPos, vec3 n, inout vec4 collectedColor, sampler2D source, float glossiness) { collectedColor = vec4(0); - return 0; + return 0.f; } diff --git a/indra/newview/app_settings/shaders/class1/deferred/shadowAlphaMaskF.glsl b/indra/newview/app_settings/shaders/class1/deferred/shadowAlphaMaskF.glsl index 9db8f461dd..f208ac746b 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/shadowAlphaMaskF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/shadowAlphaMaskF.glsl @@ -27,8 +27,6 @@ out vec4 frag_color; -uniform sampler2D diffuseMap; - in vec4 post_pos; in float target_pos_x; in vec4 vertex_color; diff --git a/indra/newview/app_settings/shaders/class1/deferred/shadowUtil.glsl b/indra/newview/app_settings/shaders/class1/deferred/shadowUtil.glsl index 16cc7cfbbc..6f7bd2bf3c 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/shadowUtil.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/shadowUtil.glsl @@ -24,7 +24,6 @@ */ uniform sampler2D normalMap; -uniform sampler2D depthMap; #if defined(SUN_SHADOW) uniform sampler2DShadow shadowMap0; diff --git a/indra/newview/app_settings/shaders/class1/deferred/skyF.glsl b/indra/newview/app_settings/shaders/class1/deferred/skyF.glsl index 785c748234..41e42b5173 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/skyF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/skyF.glsl @@ -1,24 +1,24 @@ -/** +/** * @file class1/deferred/skyF.glsl * * $LicenseInfo:firstyear=2005&license=viewerlgpl$ * Second Life Viewer Source Code * Copyright (C) 2005, Linden Research, Inc. - * + * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License only. - * + * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. - * + * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * + * * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ @@ -99,9 +99,9 @@ void main() else #endif { - // Potential Fill-rate optimization. Add cloud calculation - // back in and output alpha of 0 (so that alpha culling kills - // the fragment) if the sky wouldn't show up because the clouds + // Potential Fill-rate optimization. Add cloud calculation + // back in and output alpha of 0 (so that alpha culling kills + // the fragment) if the sky wouldn't show up because the clouds // are fully opaque. color = vary_HazeColor; diff --git a/indra/newview/app_settings/shaders/class1/deferred/skyV.glsl b/indra/newview/app_settings/shaders/class1/deferred/skyV.glsl index 24d2db2183..ea00d240df 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/skyV.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/skyV.glsl @@ -102,7 +102,7 @@ void main() // Initialize temp variables vec3 sunlight = (sun_up_factor == 1) ? sunlight_color : moonlight_color * 0.7; //magic 0.7 to match legacy color - + // Sunlight attenuation effect (hue and brightness) due to atmosphere // this is used later for sunlight modulation at various altitudes vec3 light_atten = (blue_density + vec3(haze_density * 0.25)) * (density_multiplier * max_y); @@ -152,7 +152,7 @@ void main() sunlight *= max(0.0, (1. - cloud_shadow)); // Haze color below cloud - vec3 add_below_cloud = (blue_horizon * blue_weight * (sunlight + ambient) + vec3 add_below_cloud = (blue_horizon * blue_weight * (sunlight + ambient) + (haze_horizon * haze_weight) * (sunlight * haze_glow + ambient)); // Attenuate cloud color by atmosphere diff --git a/indra/newview/app_settings/shaders/class1/deferred/terrainF.glsl b/indra/newview/app_settings/shaders/class1/deferred/terrainF.glsl index 5f598f84a7..1fd31e0546 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/terrainF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/terrainF.glsl @@ -1,28 +1,28 @@ -/** +/** * @file class1\deferred\terrainF.glsl * * $LicenseInfo:firstyear=2007&license=viewerlgpl$ * Second Life Viewer Source Code * Copyright (C) 2007, Linden Research, Inc. - * + * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License only. - * + * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. - * + * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * + * * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ - + /*[EXTRA_CODE_HERE]*/ out vec4 frag_data[4]; @@ -44,7 +44,7 @@ void main() { mirrorClip(pos); /// Note: This should duplicate the blending functionality currently used for the terrain rendering. - + vec4 color0 = texture(detail_0, vary_texcoord0.xy); vec4 color1 = texture(detail_1, vary_texcoord0.xy); vec4 color2 = texture(detail_2, vary_texcoord0.xy); @@ -54,10 +54,10 @@ void main() float alpha2 = texture(alpha_ramp,vary_texcoord1.xy).a; float alphaFinal = texture(alpha_ramp, vary_texcoord1.zw).a; vec4 outColor = mix( mix(color3, color2, alpha2), mix(color1, color0, alpha1), alphaFinal ); - - outColor.a = 0.0; // yes, downstream atmospherics - - frag_data[0] = outColor; + + outColor.a = 0.0; // yes, downstream atmospherics + + frag_data[0] = max(outColor, vec4(0)); frag_data[1] = vec4(0.0,0.0,0.0,-1.0); vec3 nvn = normalize(vary_normal); frag_data[2] = vec4(nvn.xyz, GBUFFER_FLAG_HAS_ATMOS); diff --git a/indra/newview/app_settings/shaders/class1/deferred/terrainV.glsl b/indra/newview/app_settings/shaders/class1/deferred/terrainV.glsl index b4ab7cd169..7fc0e98513 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/terrainV.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/terrainV.glsl @@ -1,24 +1,24 @@ -/** +/** * @file class1\environment\terrainV.glsl * * $LicenseInfo:firstyear=2007&license=viewerlgpl$ * Second Life Viewer Source Code * Copyright (C) 2007, Linden Research, Inc. - * + * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License only. - * + * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. - * + * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * + * * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ @@ -44,15 +44,15 @@ uniform vec4 object_plane_t; vec2 texgen_object(vec4 vpos, mat4 mat, vec4 tp0, vec4 tp1) { vec4 tcoord; - + tcoord.x = dot(vpos, tp0); tcoord.y = dot(vpos, tp1); tcoord.z = 0; tcoord.w = 1; - tcoord = mat * tcoord; - - return tcoord.xy; + tcoord = mat * tcoord; + + return tcoord.xy; } void main() @@ -65,12 +65,12 @@ void main() pos = (modelview_matrix*pre_pos).xyz; vary_normal = normalize(normal_matrix * normal); - + // Transform and pass tex coords vary_texcoord0.xy = texgen_object(vec4(position, 1.0), texture_matrix0, object_plane_s, object_plane_t); - + vec4 t = vec4(texcoord1,0,1); - + vary_texcoord0.zw = t.xy; vary_texcoord1.xy = t.xy-vec2(2.0, 0.0); vary_texcoord1.zw = t.xy-vec2(1.0, 0.0); diff --git a/indra/newview/app_settings/shaders/class1/deferred/textureUtilV.glsl b/indra/newview/app_settings/shaders/class1/deferred/textureUtilV.glsl index 7c02cb9d4a..c75a0e0d5d 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/textureUtilV.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/textureUtilV.glsl @@ -1,24 +1,24 @@ -/** +/** * @file class1/deferred/textureUtilV.glsl * * $LicenseInfo:firstyear=2023&license=viewerlgpl$ * Second Life Viewer Source Code * Copyright (C) 2023, Linden Research, Inc. - * + * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License only. - * + * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. - * + * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * + * * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ @@ -48,6 +48,7 @@ vec2 khr_texture_transform(vec2 texcoord, vec2 scale, float rotation, vec2 offse return (transform * vec3(texcoord, 1)).xy; } +// A texture transform function for PBR materials applied to shape prims/Collada model prims // vertex_texcoord - The UV texture coordinates sampled from the vertex at // runtime. Per SL convention, this is in a right-handed UV coordinate // system. Collada models also have right-handed UVs. @@ -93,36 +94,48 @@ vec2 terrain_texture_transform(vec2 vertex_texcoord, vec4[2] khr_gltf_transform) // Take the rotation only from both transforms and apply to the tangent. This // accounts for the change of the topology of the normal texture when a texture // rotation is applied to it. +// In practice, this applies the inverse of the texture transform to the tangent. +// It is effectively an inverse of the rotation // *HACK: Assume the imported GLTF model did not have both normal texture // transforms and tangent vertices. The use of this function is inconsistent // with the GLTF sample viewer when that is the case. See getNormalInfo in // https://raw.githubusercontent.com/KhronosGroup/glTF-Sample-Viewer/47a191931461a6f2e14de48d6da0f0eb6ec2d147/source/Renderer/shaders/material_info.glsl // We may want to account for this case during GLTF model import. // -Cosmic,2023-06-06 -vec3 tangent_space_transform(vec4 vertex_tangent, vec3 vertex_normal, vec4[2] khr_gltf_transform, mat4 sl_animation_transform) +vec4 tangent_space_transform(vec4 vertex_tangent, vec3 vertex_normal, vec4[2] khr_gltf_transform, mat4 sl_animation_transform) { - vec2 weights = vec2(0, 1); - - // Apply texture animation first to avoid shearing and other artifacts (rotation only) - mat2 sl_rot_scale; - sl_rot_scale[0][0] = sl_animation_transform[0][0]; - sl_rot_scale[0][1] = sl_animation_transform[0][1]; - sl_rot_scale[1][0] = sl_animation_transform[1][0]; - sl_rot_scale[1][1] = sl_animation_transform[1][1]; - weights = sl_rot_scale * weights; - // Remove scale - weights = normalize(weights); + // Immediately convert to left-handed coordinate system, but it has no + // effect here because y is 0 ((1,0) -> (1,0)) + vec2 weights = vec2(1, 0); - // Convert to left-handed coordinate system - weights.y = -weights.y; - - // Apply KHR_texture_transform (rotation only) - float khr_rotation = khr_gltf_transform[0].z; + // Apply inverse KHR_texture_transform (rotation and scale sign only) + float khr_rotation = -khr_gltf_transform[0].z; mat2 khr_rotation_mat = mat2( cos(khr_rotation),-sin(khr_rotation), sin(khr_rotation), cos(khr_rotation) ); weights = khr_rotation_mat * weights; + vec2 khr_scale_sign = sign(khr_gltf_transform[0].xy); + weights *= khr_scale_sign.xy; + + // *NOTE: Delay conversion to right-handed coordinate system here, to + // remove the need for computing the inverse of the SL texture animation + // matrix. + + // Apply texture animation last to avoid shearing and other artifacts (rotation only) + mat2 inv_sl_rot_scale; + inv_sl_rot_scale[0][0] = sl_animation_transform[0][0]; + inv_sl_rot_scale[0][1] = sl_animation_transform[0][1]; + inv_sl_rot_scale[1][0] = sl_animation_transform[1][0]; + inv_sl_rot_scale[1][1] = sl_animation_transform[1][1]; + weights = inv_sl_rot_scale * weights; + // *NOTE: Scale to be removed later + + // Set weights to default if 0 for some reason + weights.x += 1.0 - abs(sign(sign(weights.x) + (0.5 * sign(weights.y)))); + + // Remove scale from SL texture animation transform + weights = normalize(weights); // Convert back to right-handed coordinate system weights.y = -weights.y; @@ -131,27 +144,41 @@ vec3 tangent_space_transform(vec4 vertex_tangent, vec3 vertex_normal, vec4[2] kh // from the normal and tangent, as seen in the fragment shader vec3 vertex_binormal = vertex_tangent.w * cross(vertex_normal, vertex_tangent.xyz); - return (weights.x * vertex_binormal.xyz) + (weights.y * vertex_tangent.xyz); + // An additional sign flip prevents the binormal from being flipped as a + // result of a propagation of the tangent sign during the cross product. + float sign_flip = khr_scale_sign.x * khr_scale_sign.y; + return vec4((weights.x * vertex_tangent.xyz) + (weights.y * vertex_binormal.xyz), vertex_tangent.w * sign_flip); } -// Similar to tangent_space_transform but no no texture animation support. -vec3 terrain_tangent_space_transform(vec4 vertex_tangent, vec3 vertex_normal, vec4[2] khr_gltf_transform) +// Similar to tangent_space_transform but no texture animation support. +vec4 terrain_tangent_space_transform(vec4 vertex_tangent, vec3 vertex_normal, vec4[2] khr_gltf_transform) { - // Immediately convert to left-handed coordinate system ((0,1) -> (0, -1)) - vec2 weights = vec2(0, -1); + // Immediately convert to left-handed coordinate system, but it has no + // effect here because y is 0 ((1,0) -> (1,0)) + vec2 weights = vec2(1, 0); - // Apply KHR_texture_transform (rotation only) - float khr_rotation = khr_gltf_transform[0].z; + // Apply inverse KHR_texture_transform (rotation and scale sign only) + float khr_rotation = -khr_gltf_transform[0].z; mat2 khr_rotation_mat = mat2( cos(khr_rotation),-sin(khr_rotation), sin(khr_rotation), cos(khr_rotation) ); weights = khr_rotation_mat * weights; + vec2 khr_scale_sign = sign(khr_gltf_transform[0].xy); + weights *= khr_scale_sign.xy; + + // Set weights to default if 0 for some reason + weights.x += 1.0 - abs(sign(sign(weights.x) + (0.5 * sign(weights.y)))); // Convert back to right-handed coordinate system weights.y = -weights.y; + // Similar to the MikkTSpace-compatible method of extracting the binormal + // from the normal and tangent, as seen in the fragment shader vec3 vertex_binormal = vertex_tangent.w * cross(vertex_normal, vertex_tangent.xyz); - return (weights.x * vertex_binormal.xyz) + (weights.y * vertex_tangent.xyz); + // An additional sign flip prevents the binormal from being flipped as a + // result of a propagation of the tangent sign during the cross product. + float sign_flip = khr_scale_sign.x * khr_scale_sign.y; + return vec4((weights.x * vertex_tangent.xyz) + (weights.y * vertex_binormal.xyz), vertex_tangent.w * sign_flip); } |