diff options
| -rw-r--r-- | indra/newview/app_settings/shaders/class1/deferred/pbralphaF.glsl | 359 | ||||
| -rw-r--r-- | indra/newview/app_settings/shaders/class1/deferred/pbralphaV.glsl | 134 |
2 files changed, 493 insertions, 0 deletions
diff --git a/indra/newview/app_settings/shaders/class1/deferred/pbralphaF.glsl b/indra/newview/app_settings/shaders/class1/deferred/pbralphaF.glsl new file mode 100644 index 0000000000..9d58525fd7 --- /dev/null +++ b/indra/newview/app_settings/shaders/class1/deferred/pbralphaF.glsl @@ -0,0 +1,359 @@ +/** + * @file class1\deferred\pbralphaF.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 + * $/LicenseInfo$ + */ + +/*[EXTRA_CODE_HERE]*/ + +#define PBR_USE_IBL 1 +#define PBR_USE_SUN 1 +#define PBR_USE_IRRADIANCE_HACK 1 + +#define DIFFUSE_ALPHA_MODE_NONE 0 +#define DIFFUSE_ALPHA_MODE_BLEND 1 +#define DIFFUSE_ALPHA_MODE_MASK 2 +#define DIFFUSE_ALPHA_MODE_EMISSIVE 3 + +#define DEBUG_PBR_LIGHT_TYPE 0 // Output Diffuse=0.75, Emissive=0, ORM=0,0,0 + +#define DEBUG_BASIC 0 +#define DEBUG_VERTEX 0 +#define DEBUG_NORMAL_MAP 0 // Output packed normal map "as is" to diffuse +#define DEBUG_NORMAL_OUT 0 // Output unpacked normal to diffuse +#define DEBUG_ORM 0 // Output Occlusion Roughness Metal "as is" to diffuse +#define DEBUG_POSITION 0 + +uniform sampler2D diffuseMap; //always in sRGB space +uniform sampler2D bumpMap; +uniform sampler2D emissiveMap; +uniform sampler2D specularMap; // PBR: Packed: Occlusion, Metal, Roughness + +uniform float metallicFactor; +uniform float roughnessFactor; +uniform vec3 emissiveColor; + +#if defined(HAS_SUN_SHADOW) || defined(HAS_SSAO) +uniform sampler2DRect lightMap; +#endif + +uniform samplerCube environmentMap; +uniform mat3 env_mat; +uniform int sun_up_factor; +uniform vec3 sun_dir; +uniform vec3 moon_dir; + +#if (DIFFUSE_ALPHA_MODE == DIFFUSE_ALPHA_MODE_BLEND) + #ifdef DEFINE_GL_FRAGCOLOR + out vec4 frag_color; + #else + #define frag_color gl_FragColor + #endif +#else + #ifdef DEFINE_GL_FRAGCOLOR + out vec4 frag_data[4]; + #else + #define frag_data gl_FragData + #endif +#endif + + +VARYING vec3 vary_position; +VARYING vec4 vertex_color; +VARYING vec2 vary_texcoord0; +#ifdef HAS_NORMAL_MAP +VARYING vec3 vary_normal; +VARYING vec3 vary_mat0; +VARYING vec3 vary_mat1; +VARYING vec3 vary_mat2; +VARYING vec2 vary_texcoord1; +#endif + +#ifdef HAS_SPECULAR_MAP + VARYING vec2 vary_texcoord2; +#endif + +#ifdef HAS_ALPHA_MASK +uniform float minimum_alpha; // PBR alphaMode: MASK, See: mAlphaCutoff, setAlphaCutoff() +#endif + +// Lights +// See: LLRender::syncLightState() +uniform vec4 light_position[8]; +uniform vec3 light_direction[8]; // spot direction +uniform vec4 light_attenuation[8]; // linear, quadratic, ?, ? +uniform vec3 light_diffuse[8]; + +vec2 encode_normal(vec3 n); +vec3 srgb_to_linear(vec3 c); +vec3 linear_to_srgb(vec3 c); + +// These are in deferredUtil.glsl but we can't set: mFeatures.isDeferred to include it +vec3 BRDFLambertian( vec3 reflect0, vec3 reflect90, vec3 c_diff, float specWeight, float vh ); +vec3 BRDFSpecularGGX( vec3 reflect0, vec3 reflect90, float alphaRoughness, float specWeight, float vh, float nl, float nv, float nh ); +void calcAtmosphericVars(vec3 inPositionEye, vec3 light_dir, float ambFactor, out vec3 sunlit, out vec3 amblit, out vec3 additive, out vec3 atten, bool use_ao); +void calcHalfVectors(vec3 lv, vec3 n, vec3 v, out vec3 h, out vec3 l, out float nh, out float nl, out float nv, out float vh, out float lightDist); +float calcLegacyDistanceAttenuation(float distance, float falloff); +vec2 getGGX( vec2 brdfPoint ); +void initMaterial( vec3 diffuse, vec3 packedORM, + out float alphaRough, out vec3 c_diff, out vec3 reflect0, out vec3 reflect90, out float specWeight ); +void sampleReflectionProbes(inout vec3 ambenv, inout vec3 glossenv, inout vec3 legacyEnv, + vec3 pos, vec3 norm, float glossiness, float envIntensity); + +vec3 hue_to_rgb(float hue); + +// lp = light position +// la = light radius +// fa = falloff +vec3 calcPointLightOrSpotLight(vec3 reflect0, vec3 c_diff, + vec3 lightColor, vec3 diffuse, vec3 v, vec3 n, vec4 lp, vec3 ln, + float la, float fa, float is_pointlight, float ambiance) +{ + vec3 intensity = vec3(0); + + vec3 lv = lp.xyz - v; + vec3 h, l; + float nh, nl, nv, vh, lightDist; + calcHalfVectors(lv,n,v,h,l,nh,nl,nv,vh,lightDist); + + if (lightDist > 0.0) + { + float falloff_factor = (12.0 * fa) - 9.0; + float inverted_la = falloff_factor / la; + + float dist = lightDist / inverted_la; + + float dist_atten = calcLegacyDistanceAttenuation(dist,fa); + if (dist_atten <= 0.0) + return intensity; + + vec3 reflect90 = vec3(1); + float specWeight = 1.0; + + lv = normalize(lv); + float spot = max(dot(-ln, lv), is_pointlight); + nl *= spot * spot; + + if (nl > 0.0) + intensity = dist_atten * nl * lightColor * BRDFLambertian(reflect0, reflect90, c_diff, specWeight, vh); + } + return intensity; +} + +void main() +{ + vec3 light_dir = (sun_up_factor == 1) ? sun_dir : moon_dir; + vec3 pos = vary_position; + +#if defined(HAS_SUN_SHADOW) || defined(HAS_SSAO) + vec2 scol_ambocc = texture2DRect(lightMap, vary_fragcoord.xy).rg; + scol_ambocc = pow(scol_ambocc, vec2(light_gamma)); + float scol = max(scol_ambocc.r, diffuse.a); + float ambocc = scol_ambocc.g; +#else + float scol = 1.0; + float ambocc = 1.0; +#endif + + vec3 sunlit; + vec3 amblit; + vec3 additive; + vec3 atten; + calcAtmosphericVars(pos.xyz, light_dir, ambocc, sunlit, amblit, additive, atten, true); + +// IF .mFeatures.mIndexedTextureChannels = LLGLSLShader::sIndexedTextureChannels; +// vec3 col = vertex_color.rgb * diffuseLookup(vary_texcoord0.xy).rgb; +// else + vec4 albedo = texture2D(diffuseMap, vary_texcoord0.xy).rgba; + albedo.rgb = srgb_to_linear(albedo.rgb); +#ifdef HAS_ALPHA_MASK + if (albedo.a < minimum_alpha) + { + discard; + } +#endif + +// vec3 base = vertex_color.rgb * albedo.rgb * albedo.a; + vec3 base = vertex_color.rgb * albedo.rgb; + +#ifdef HAS_NORMAL_MAP + vec4 norm = texture2D(bumpMap, vary_texcoord1.xy); + norm.xyz = normalize(norm.xyz * 2 - 1); + + vec3 tnorm = vec3(dot(norm.xyz,vary_mat0), + dot(norm.xyz,vary_mat1), + dot(norm.xyz,vary_mat2)); +#else + vec4 norm = vec4(0,0,0,1.0); +// vec3 tnorm = vary_normal; + vec3 tnorm = vec3(0,0,1); +#endif + + tnorm = normalize(tnorm.xyz); + norm.xyz = tnorm.xyz; + + // RGB = Occlusion, Roughness, Metal + // default values, see LLViewerFetchedTexture::sWhiteImagep since roughnessFactor and metallicFactor are multiplied in + // occlusion 1.0 + // roughness 0.0 + // metal 0.0 +#ifdef HAS_SPECULAR_MAP + vec3 packedORM = texture2D(specularMap, vary_texcoord2.xy).rgb; // PBR linear packed Occlusion, Roughness, Metal. See: lldrawpoolapha.cpp +#else + vec3 packedORM = vec3(1,0,0); +#endif + + packedORM.g *= roughnessFactor; + packedORM.b *= metallicFactor; + + vec3 colorEmissive = emissiveColor; +#ifdef HAS_EMISSIVE_MAP + colorEmissive *= texture2D(emissiveMap, vary_texcoord0.xy).rgb; +#endif + + vec3 colorDiffuse = vec3(0); + vec3 colorSpec = vec3(0); + + float IOR = 1.5; // default Index Of Refraction 1.5 (dielectrics) + float ao = packedORM.r; + float perceptualRough = packedORM.g; + float metal = packedORM.b; + + vec3 v = -normalize(vary_position.xyz); + vec3 n = norm.xyz; + vec3 t = vec3(1,0,0); + vec3 b = normalize(cross(n,t)); + vec3 reflectVN = normalize(reflect(-v,n)); + + vec3 h, l; + float nh, nl, nv, vh, lightDist; + calcHalfVectors(light_dir, n, v, h, l, nh, nl, nv, vh, lightDist); + + vec3 c_diff, reflect0, reflect90; + float alphaRough, specWeight; + initMaterial( base, packedORM, alphaRough, c_diff, reflect0, reflect90, specWeight ); + + // Common to RadianceGGX and RadianceLambertian + vec2 brdfPoint = clamp(vec2(nv, perceptualRough), vec2(0,0), vec2(1,1)); + vec2 vScaleBias = getGGX( brdfPoint); // Environment BRDF: scale and bias applied to reflect0 + vec3 fresnelR = max(vec3(1.0 - perceptualRough), reflect0) - reflect0; // roughness dependent fresnel + vec3 kSpec = reflect0 + fresnelR*pow(1.0 - nv, 5.0); + + vec3 legacyenv; + + vec3 irradiance = vec3(0); + vec3 specLight = vec3(0); + float gloss = 1.0 - perceptualRough; + sampleReflectionProbes(irradiance, specLight, legacyenv, pos.xyz, norm.xyz, gloss, 0.0); +#if PBR_USE_IRRADIANCE_HACK + irradiance = max(amblit,irradiance) * ambocc; +#else +irradiance = vec3(amblit); +#endif + + vec3 FssEssGGX = kSpec*vScaleBias.x + vScaleBias.y; +#if PBR_USE_IBL + colorSpec += specWeight * specLight * FssEssGGX; +#endif + + vec3 FssEssLambert = specWeight * kSpec * vScaleBias.x + vScaleBias.y; // NOTE: Very similar to FssEssRadiance but with extra specWeight term + float Ems = 1.0 - (vScaleBias.x + vScaleBias.y); + vec3 avg = specWeight * (reflect0 + (1.0 - reflect0) / 21.0); + vec3 AvgEms = avg * Ems; + vec3 FmsEms = AvgEms * FssEssLambert / (1.0 - AvgEms); + vec3 kDiffuse = c_diff * (1.0 - FssEssLambert + FmsEms); +#if PBR_USE_IBL + colorDiffuse += (FmsEms + kDiffuse) * irradiance; +#endif + + colorDiffuse *= ao; + colorSpec *= ao; + + // Sun/Moon Lighting + if (nl > 0.0 || nv > 0.0) + { + float scale = 4.9; + vec3 sunColor = srgb_to_linear(sunlit * scale); // NOTE: Midday should have strong sunlight + + // scol = sun shadow + vec3 intensity = ambocc * sunColor * nl * scol; + vec3 sunDiffuse = intensity * BRDFLambertian (reflect0, reflect90, c_diff , specWeight, vh); + vec3 sunSpec = intensity * BRDFSpecularGGX(reflect0, reflect90, alphaRough, specWeight, vh, nl, nv, nh); +#if PBR_USE_SUN + colorDiffuse += sunDiffuse; + colorSpec += sunSpec; +#endif + } + vec3 col = colorDiffuse + colorEmissive + colorSpec; + + vec3 light = vec3(0); + + // Punctual lights +#define LIGHT_LOOP(i) light += calcPointLightOrSpotLight( reflect0, c_diff, light_diffuse[i].rgb, albedo.rgb, pos.xyz, n, light_position[i], light_direction[i].xyz, light_attenuation[i].x, light_attenuation[i].y, light_attenuation[i].z, light_attenuation[i].w ); + + LIGHT_LOOP(1) + LIGHT_LOOP(2) + LIGHT_LOOP(3) + LIGHT_LOOP(4) + LIGHT_LOOP(5) + LIGHT_LOOP(6) + LIGHT_LOOP(7) + +#if !defined(LOCAL_LIGHT_KILL) + col += light; +#endif // !defined(LOCAL_LIGHT_KILL) + +#if DEBUG_PBR_LIGHT_TYPE + col.rgb = vec3(0.75); + emissive = vec3(0); + spec.rgb = vec3(0); +#endif +#if DEBUG_BASIC + col.rgb = vec3( 1, 0, 1 ); +#endif +#if DEBUG_VERTEX + col.rgb = vertex_color.rgb; +#endif +#if DEBUG_NORMAL_MAP + col.rgb = texture2D(bumpMap, vary_texcoord1.xy).rgb; +#endif +#if DEBUG_NORMAL_OUT + col.rgb = vary_normal; +#endif +#if DEBUG_ORM + col.rgb = linear_to_srgb(spec); +#endif +#if DEBUG_POSITION + col.rgb = vary_position.xyz; +#endif + +// col.rgb = linear_to_srgb(col.rgb); +// frag_color = vec4(albedo.rgb,albedo.a); +// frag_color = vec4(base.rgb,albedo.a); +// frag_color = vec4(irradiance,albedo.a); +// frag_color = vec4(colorDiffuse,albedo.a); +// frag_color = vec4(colorEmissive,albedo.a); +// frag_color = vec4(sun_dir,albedo.a); +// frag_color = vec4(sunlit,albedo.a); + col = linear_to_srgb(col.rgb); + frag_color = vec4(col,albedo.a); +} diff --git a/indra/newview/app_settings/shaders/class1/deferred/pbralphaV.glsl b/indra/newview/app_settings/shaders/class1/deferred/pbralphaV.glsl new file mode 100644 index 0000000000..8cc3c11fa1 --- /dev/null +++ b/indra/newview/app_settings/shaders/class1/deferred/pbralphaV.glsl @@ -0,0 +1,134 @@ +/** + * @file class1\deferred\pbralphaV.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 + * $/LicenseInfo$ + */ + +#define DIFFUSE_ALPHA_MODE_IGNORE 0 +#define DIFFUSE_ALPHA_MODE_BLEND 1 +#define DIFFUSE_ALPHA_MODE_MASK 2 +#define DIFFUSE_ALPHA_MODE_EMISSIVE 3 + +#ifdef HAS_SKIN +uniform mat4 modelview_matrix; +uniform mat4 projection_matrix; +mat4 getObjectSkinnedTransform(); +#else +uniform mat3 normal_matrix; +uniform mat4 modelview_projection_matrix; +#endif + +#if (DIFFUSE_ALPHA_MODE == DIFFUSE_ALPHA_MODE_BLEND) + #if !defined(HAS_SKIN) + uniform mat4 modelview_matrix; + #endif + VARYING vec3 vary_position; +#endif + +uniform mat4 texture_matrix0; + +ATTRIBUTE vec3 position; +ATTRIBUTE vec4 diffuse_color; +ATTRIBUTE vec3 normal; +ATTRIBUTE vec2 texcoord0; + + +#ifdef HAS_NORMAL_MAP +ATTRIBUTE vec4 tangent; +ATTRIBUTE vec2 texcoord1; + +VARYING vec3 vary_mat0; +VARYING vec3 vary_mat1; +VARYING vec3 vary_mat2; + +VARYING vec2 vary_texcoord1; +#else +VARYING vec3 vary_normal; +#endif + +#ifdef HAS_SPECULAR_MAP +ATTRIBUTE vec2 texcoord2; +VARYING vec2 vary_texcoord2; +#endif + +VARYING vec4 vertex_color; +VARYING vec2 vary_texcoord0; + +void main() +{ +#ifdef HAS_SKIN + mat4 mat = getObjectSkinnedTransform(); + mat = modelview_matrix * mat; + vec3 pos = (mat*vec4(position.xyz,1.0)).xyz; +#if (DIFFUSE_ALPHA_MODE == DIFFUSE_ALPHA_MODE_BLEND) + vary_position = pos; +#endif + gl_Position = projection_matrix*vec4(pos,1.0); +#else + //transform vertex + gl_Position = modelview_projection_matrix * vec4(position.xyz, 1.0); +#endif + + vary_texcoord0 = (texture_matrix0 * vec4(texcoord0,0,1)).xy; + +#ifdef HAS_NORMAL_MAP + vary_texcoord1 = (texture_matrix0 * vec4(texcoord1,0,1)).xy; +#endif + +#ifdef HAS_SPECULAR_MAP + vary_texcoord2 = (texture_matrix0 * vec4(texcoord2,0,1)).xy; +#endif + +#ifdef HAS_SKIN + vec3 n = normalize((mat*vec4(normal.xyz+position.xyz,1.0)).xyz-pos.xyz); + #ifdef HAS_NORMAL_MAP + vec3 t = normalize((mat*vec4(tangent.xyz+position.xyz,1.0)).xyz-pos.xyz); + vec3 b = cross(n, t)*tangent.w; + + vary_mat0 = vec3(t.x, b.x, n.x); + vary_mat1 = vec3(t.y, b.y, n.y); + vary_mat2 = vec3(t.z, b.z, n.z); + #else //HAS_NORMAL_MAP + vary_normal = n; + #endif //HAS_NORMAL_MAP +#else //HAS_SKIN + vec3 n = normalize(normal_matrix * normal); + #ifdef HAS_NORMAL_MAP + vec3 t = normalize(normal_matrix * tangent.xyz); + vec3 b = cross(n,t)*tangent.w; + + vary_mat0 = vec3(t.x, b.x, n.x); + vary_mat1 = vec3(t.y, b.y, n.y); + vary_mat2 = vec3(t.z, b.z, n.z); + #else //HAS_NORMAL_MAP + vary_normal = n; + #endif //HAS_NORMAL_MAP +#endif //HAS_SKIN + + vertex_color = diffuse_color; + +#if (DIFFUSE_ALPHA_MODE == DIFFUSE_ALPHA_MODE_BLEND) + #if !defined(HAS_SKIN) + vary_position = (modelview_matrix*vec4(position.xyz, 1.0)).xyz; + #endif +#endif +} |