diff options
Diffstat (limited to 'indra/newview/app_settings/shaders/class1/deferred')
10 files changed, 781 insertions, 26 deletions
diff --git a/indra/newview/app_settings/shaders/class1/deferred/emissiveF.glsl b/indra/newview/app_settings/shaders/class1/deferred/emissiveF.glsl index 9e61b6b894..c95f791dbf 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/emissiveF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/emissiveF.glsl @@ -34,6 +34,6 @@ void main() { // NOTE: when this shader is used, only alpha is being written to float a = diffuseLookup(vary_texcoord0.xy).a*vertex_color.a; - frag_color = vec4(0, 0, 0, a); + frag_color = max(vec4(0, 0, 0, a), vec4(0)); } diff --git a/indra/newview/app_settings/shaders/class1/deferred/fullbrightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/fullbrightF.glsl index 5d58cc91cd..a6fab10791 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/fullbrightF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/fullbrightF.glsl @@ -35,21 +35,19 @@ in vec3 vary_position; in vec4 vertex_color; in vec2 vary_texcoord0; -#ifdef WATER_FOG -vec4 applyWaterFogView(vec3 pos, vec4 color); -#endif - vec3 srgb_to_linear(vec3 cs); vec3 linear_to_srgb(vec3 cl); -vec3 atmosFragLighting(vec3 light, vec3 additive, vec3 atten); -void calcAtmosphericVars(vec3 inPositionEye, vec3 light_dir, float ambFactor, out vec3 sunlit, out vec3 amblit, out vec3 additive, out vec3 atten); #ifdef HAS_ALPHA_MASK uniform float minimum_alpha; #endif #ifdef IS_ALPHA +uniform vec4 waterPlane; void waterClip(vec3 pos); +void calcAtmosphericVars(vec3 inPositionEye, vec3 light_dir, float ambFactor, out vec3 sunlit, out vec3 amblit, out vec3 additive, + out vec3 atten); +vec4 applySkyAndWaterFog(vec3 pos, vec3 additive, vec3 atten, vec4 color); #endif void main() @@ -78,26 +76,21 @@ void main() vec3 pos = vary_position; + color.a = final_alpha; #ifndef IS_HUD + color.rgb = srgb_to_linear(color.rgb); +#ifdef IS_ALPHA + vec3 sunlit; vec3 amblit; vec3 additive; vec3 atten; calcAtmosphericVars(pos.xyz, vec3(0), 1.0, sunlit, amblit, additive, atten); -#endif -#ifdef WATER_FOG + color.rgb = applySkyAndWaterFog(pos, additive, atten, color).rgb; - vec4 fogged = applyWaterFogView(pos, vec4(color.rgb, final_alpha)); - color.rgb = fogged.rgb; - color.a = fogged.a; -#else - color.a = final_alpha; #endif -#ifndef IS_HUD - color.rgb = srgb_to_linear(color.rgb); - color.rgb = atmosFragLighting(color.rgb, additive, atten); #endif frag_color = max(color, vec4(0)); diff --git a/indra/newview/app_settings/shaders/class1/deferred/moonF.glsl b/indra/newview/app_settings/shaders/class1/deferred/moonF.glsl index f3e7b2ee72..183354b9bd 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/moonF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/moonF.glsl @@ -57,5 +57,8 @@ void main() frag_data[1] = vec4(0.0); frag_data[2] = vec4(0.0, 0.0, 0.0, GBUFFER_FLAG_HAS_ATMOS); frag_data[3] = vec4(c.rgb, c.a); + + // Added and commented out for a ground truth. Do not uncomment - Geenz + //gl_FragDepth = 0.999985f; } diff --git a/indra/newview/app_settings/shaders/class1/deferred/moonV.glsl b/indra/newview/app_settings/shaders/class1/deferred/moonV.glsl index 032245a01c..c2a1dccb33 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/moonV.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/moonV.glsl @@ -39,7 +39,8 @@ void main() vec4 pos = (modelview_projection_matrix * vert); // smash to *almost* far clip plane -- stars are still behind - pos.z = pos.w*0.999999; + // SL-19283 - finagle the moon position to be between clouds and stars. + pos.z = pos.w*0.999991; gl_Position = pos; vary_texcoord0 = (texture_matrix0 * vec4(texcoord0,0,1)).xy; diff --git a/indra/newview/app_settings/shaders/class1/deferred/pbrterrainF.glsl b/indra/newview/app_settings/shaders/class1/deferred/pbrterrainF.glsl new file mode 100644 index 0000000000..db03e0885c --- /dev/null +++ b/indra/newview/app_settings/shaders/class1/deferred/pbrterrainF.glsl @@ -0,0 +1,272 @@ +/** + * @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 + * $/LicenseInfo$ + */ + +/*[EXTRA_CODE_HERE]*/ + +#define TERRAIN_PBR_DETAIL_EMISSIVE 0 + +#if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3 +#define TerrainCoord vec4[2] +#elif TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 1 +#define TerrainCoord vec2 +#endif + +#define MIX_X 1 << 3 +#define MIX_Y 1 << 4 +#define MIX_Z 1 << 5 +#define MIX_W 1 << 6 + +// TODO: Decide if this struct needs to be declared +struct TerrainMix +{ + vec4 weight; + int type; +}; + +TerrainMix get_terrain_mix_weights(float alpha1, float alpha2, float alphaFinal); + +// TODO: Decide if this struct needs to be declared +struct PBRMix +{ + vec4 col; // RGB color with alpha, linear space + vec3 orm; // Occlusion, roughness, metallic + vec3 vNt; // Unpacked normal texture sample, vector +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) + vec3 emissive; // RGB emissive color, linear space +#endif +}; + +PBRMix init_pbr_mix(); + +PBRMix terrain_sample_and_multiply_pbr( + TerrainCoord terrain_coord + , sampler2D tex_col + , sampler2D tex_orm + , sampler2D tex_vNt +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) + , sampler2D tex_emissive +#endif + , vec4 factor_col + , vec3 factor_orm +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) + , vec3 factor_emissive +#endif + ); + +PBRMix mix_pbr(PBRMix mix1, PBRMix mix2, float mix2_weight); + +out vec4 frag_data[4]; + +uniform sampler2D alpha_ramp; + +// *TODO: More configurable quality level which disables PBR features on machines +// with limited texture availability +// https://registry.khronos.org/glTF/specs/2.0/glTF-2.0.html#additional-textures +uniform sampler2D detail_0_base_color; +uniform sampler2D detail_1_base_color; +uniform sampler2D detail_2_base_color; +uniform sampler2D detail_3_base_color; +uniform sampler2D detail_0_normal; +uniform sampler2D detail_1_normal; +uniform sampler2D detail_2_normal; +uniform sampler2D detail_3_normal; +uniform sampler2D detail_0_metallic_roughness; +uniform sampler2D detail_1_metallic_roughness; +uniform sampler2D detail_2_metallic_roughness; +uniform sampler2D detail_3_metallic_roughness; +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) +uniform sampler2D detail_0_emissive; +uniform sampler2D detail_1_emissive; +uniform sampler2D detail_2_emissive; +uniform sampler2D detail_3_emissive; +#endif + +uniform vec4[4] baseColorFactors; // See also vertex_color in pbropaqueV.glsl +uniform vec4 metallicFactors; +uniform vec4 roughnessFactors; +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) +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_normal; +in vec3 vary_tangent; +flat in float vary_sign; +in vec4 vary_texcoord0; +in vec4 vary_texcoord1; + +vec2 encode_normal(vec3 n); + +float terrain_mix(TerrainMix tm, vec4 tms4); + +void main() +{ + +#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 + + 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); + + // RGB = Occlusion, Roughness, Metal + // default values, see LLViewerTexture::sDefaultPBRORMImagep + // occlusion 1.0 + // roughness 0.0 + // metal 0.0 + vec3[4] orm_factors; + orm_factors[0] = vec3(1.0, roughnessFactors.x, metallicFactors.x); + orm_factors[1] = vec3(1.0, roughnessFactors.y, metallicFactors.y); + orm_factors[2] = vec3(1.0, roughnessFactors.z, metallicFactors.z); + orm_factors[3] = vec3(1.0, roughnessFactors.w, metallicFactors.w); + + PBRMix mix = init_pbr_mix(); + PBRMix mix2; + switch (tm.type & MIX_X) + { + case MIX_X: + mix2 = terrain_sample_and_multiply_pbr( + terrain_texcoord + , detail_0_base_color + , detail_0_metallic_roughness + , detail_0_normal +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) + , detail_0_emissive +#endif + , baseColorFactors[0] + , orm_factors[0] +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) + , emissiveColors[0] +#endif + ); + mix = mix_pbr(mix, mix2, tm.weight.x); + break; + default: + break; + } + switch (tm.type & MIX_Y) + { + case MIX_Y: + mix2 = terrain_sample_and_multiply_pbr( + terrain_texcoord + , detail_1_base_color + , detail_1_metallic_roughness + , detail_1_normal +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) + , detail_1_emissive +#endif + , baseColorFactors[1] + , orm_factors[1] +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) + , emissiveColors[1] +#endif + ); + mix = mix_pbr(mix, mix2, tm.weight.y); + break; + default: + break; + } + switch (tm.type & MIX_Z) + { + case MIX_Z: + mix2 = terrain_sample_and_multiply_pbr( + terrain_texcoord + , detail_2_base_color + , detail_2_metallic_roughness + , detail_2_normal +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) + , detail_2_emissive +#endif + , baseColorFactors[2] + , orm_factors[2] +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) + , emissiveColors[2] +#endif + ); + mix = mix_pbr(mix, mix2, tm.weight.z); + break; + default: + break; + } + switch (tm.type & MIX_W) + { + case MIX_W: + mix2 = terrain_sample_and_multiply_pbr( + terrain_texcoord + , detail_3_base_color + , detail_3_metallic_roughness + , detail_3_normal +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) + , detail_3_emissive +#endif + , baseColorFactors[3] + , orm_factors[3] +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) + , emissiveColors[3] +#endif + ); + mix = mix_pbr(mix, mix2, tm.weight.w); + break; + default: + break; + } + + float minimum_alpha = terrain_mix(tm, minimum_alphas); + if (mix.col.a < minimum_alpha) + { + discard; + } + float base_color_factor_alpha = terrain_mix(tm, vec4(baseColorFactors[0].z, baseColorFactors[1].z, baseColorFactors[2].z, baseColorFactors[3].z)); + + // from mikktspace.com + vec3 vNt = 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; + + +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) +#define emissive mix.emissive +#else +#define emissive vec3(0) +#endif + frag_data[0] = max(vec4(mix.col.xyz, 0.0), vec4(0)); // Diffuse + frag_data[1] = max(vec4(mix.orm.rgb, base_color_factor_alpha), vec4(0)); // PBR linear packed Occlusion, Roughness, Metal. + frag_data[2] = max(vec4(encode_normal(tnorm), base_color_factor_alpha, GBUFFER_FLAG_HAS_PBR), vec4(0)); // normal, environment intensity, flags + frag_data[3] = max(vec4(emissive,0), vec4(0)); // PBR sRGB Emissive +} + diff --git a/indra/newview/app_settings/shaders/class1/deferred/pbrterrainUtilF.glsl b/indra/newview/app_settings/shaders/class1/deferred/pbrterrainUtilF.glsl new file mode 100644 index 0000000000..316b751590 --- /dev/null +++ b/indra/newview/app_settings/shaders/class1/deferred/pbrterrainUtilF.glsl @@ -0,0 +1,396 @@ +/** + * @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 + * $/LicenseInfo$ + */ + +/*[EXTRA_CODE_HERE]*/ + +/** + * Triplanar mapping implementation adapted from Inigo Quilez' example shader, + * MIT license. + * https://www.shadertoy.com/view/MtsGWH + * Copyright © 2015 Inigo Quilez + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to + * deal in the Software without restriction, including without limitation the + * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: The above copyright + * notice and this permission notice shall be included in all copies or + * substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", + * WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED + * TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE + * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF + * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#define TERRAIN_PBR_DETAIL_EMISSIVE 0 + +in vec3 vary_vertex_normal; + +vec3 srgb_to_linear(vec3 c); + +// A relatively agressive threshold for terrain material mixing sampling +// cutoff. This ensures that only one or two materials are used in most places, +// making PBR terrain blending more performant. Should be greater than 0 to work. +#define TERRAIN_RAMP_MIX_THRESHOLD 0.1 +// A small threshold for triplanar mapping sampling cutoff. This and +// TERRAIN_TRIPLANAR_BLEND_FACTOR together ensures that only one or two samples +// per texture are used in most places, making triplanar mapping more +// performant. Should be greater than 0 to work. +// There's also an artistic design choice in the use of these factors, and the +// use of triplanar generally. Don't take these triplanar constants for granted. +#define TERRAIN_TRIPLANAR_MIX_THRESHOLD 0.01 + +#define SAMPLE_X 1 << 0 +#define SAMPLE_Y 1 << 1 +#define SAMPLE_Z 1 << 2 +#define MIX_X 1 << 3 +#define MIX_Y 1 << 4 +#define MIX_Z 1 << 5 +#define MIX_W 1 << 6 + +struct PBRMix +{ + vec4 col; // RGB color with alpha, linear space + vec3 orm; // Occlusion, roughness, metallic + vec3 vNt; // Unpacked normal texture sample, vector +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) + vec3 emissive; // RGB emissive color, linear space +#endif +}; + +PBRMix init_pbr_mix() +{ + PBRMix mix; + mix.col = vec4(0); + mix.orm = vec3(0); + mix.vNt = vec3(0); +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) + mix.emissive = vec3(0); +#endif + return mix; +} + +// Usage example, for two weights: +// vec2 weights = ... // Weights must add up to 1 +// PBRMix mix = init_pbr_mix(); +// PBRMix mix1 = ... +// mix = mix_pbr(mix, mix1, weights.x); +// PBRMix mix2 = ... +// mix = mix_pbr(mix, mix2, weights.y); +PBRMix mix_pbr(PBRMix mix1, PBRMix mix2, float mix2_weight) +{ + PBRMix mix; + mix.col = mix1.col + (mix2.col * mix2_weight); + mix.orm = mix1.orm + (mix2.orm * mix2_weight); + mix.vNt = mix1.vNt + (mix2.vNt * mix2_weight); +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) + mix.emissive = mix1.emissive + (mix2.emissive * mix2_weight); +#endif + return mix; +} + +PBRMix sample_pbr( + vec2 uv + , sampler2D tex_col + , sampler2D tex_orm + , sampler2D tex_vNt +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) + , sampler2D tex_emissive +#endif + ) +{ + PBRMix mix; + mix.col = texture(tex_col, uv); + mix.col.rgb = srgb_to_linear(mix.col.rgb); + mix.orm = texture(tex_orm, uv).xyz; + mix.vNt = texture(tex_vNt, uv).xyz*2.0-1.0; +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) + mix.emissive = srgb_to_linear(texture(tex_emissive, uv).xyz); +#endif + return mix; +} + +struct TerrainTriplanar +{ + vec3 weight; + int type; +}; + +struct TerrainMix +{ + vec4 weight; + int type; +}; + +#define TerrainMixSample vec4[4] +#define TerrainMixSample3 vec3[4] + +TerrainMix get_terrain_mix_weights(float alpha1, float alpha2, float alphaFinal) +{ + TerrainMix tm; + vec4 sample_x = vec4(1,0,0,0); + vec4 sample_y = vec4(0,1,0,0); + vec4 sample_z = vec4(0,0,1,0); + vec4 sample_w = vec4(0,0,0,1); + + tm.weight = mix( mix(sample_w, sample_z, alpha2), mix(sample_y, sample_x, alpha1), alphaFinal ); + tm.weight -= TERRAIN_RAMP_MIX_THRESHOLD; + ivec4 usage = max(ivec4(0), ivec4(ceil(tm.weight))); + // Prevent negative weights and keep weights balanced + tm.weight = tm.weight*vec4(usage); + tm.weight /= (tm.weight.x + tm.weight.y + tm.weight.z + tm.weight.w); + + tm.type = (usage.x * MIX_X) | + (usage.y * MIX_Y) | + (usage.z * MIX_Z) | + (usage.w * MIX_W); + return tm; +} + +TerrainTriplanar _t_triplanar() +{ + float sharpness = TERRAIN_TRIPLANAR_BLEND_FACTOR; + float threshold = TERRAIN_TRIPLANAR_MIX_THRESHOLD; + vec3 weight_signed = pow(abs(vary_vertex_normal), vec3(sharpness)); + weight_signed /= (weight_signed.x + weight_signed.y + weight_signed.z); + weight_signed -= vec3(threshold); + TerrainTriplanar tw; + // *NOTE: Make sure the threshold doesn't affect the materials + tw.weight = max(vec3(0), weight_signed); + tw.weight /= (tw.weight.x + tw.weight.y + tw.weight.z); + ivec3 usage = ivec3(round(max(vec3(0), sign(weight_signed)))); + tw.type = ((usage.x) * SAMPLE_X) | + ((usage.y) * SAMPLE_Y) | + ((usage.z) * SAMPLE_Z); + return tw; +} + +// Assume weights add to 1 +float terrain_mix(TerrainMix tm, vec4 tms4) +{ + return (tm.weight.x * tms4[0]) + + (tm.weight.y * tms4[1]) + + (tm.weight.z * tms4[2]) + + (tm.weight.w * tms4[3]); +} + +#if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3 +// Triplanar mapping + +// Pre-transformed texture coordinates for each axial uv slice (Packing: xy, yz, (-x)z, unused) +#define TerrainCoord vec4[2] + +vec2 _t_uv(vec2 uv_unflipped, 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; +} + +vec3 _t_normal_post_1(vec3 vNt0, float sign_or_zero) +{ + // Assume normal is unpacked + vec3 vNt1 = vNt0; + // Get sign + float sign = sign_or_zero; + // Handle case where sign is 0 + sign = (2.0*sign) + 1.0; + sign /= abs(sign); + // If the sign is negative, rotate normal by 180 degrees + vNt1.xy = (min(0, sign) * vNt1.xy) + (min(0, -sign) * -vNt1.xy); + return vNt1; +} + +// Triplanar-specific normal texture fixes +vec3 _t_normal_post_x(vec3 vNt0) +{ + 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); + return vNt_x; +} +vec3 _t_normal_post_y(vec3 vNt0) +{ + vec3 vNt_y = _t_normal_post_1(vNt0, sign(vary_vertex_normal.y)); + // *HACK: Transform normals according to orientation of the UVs + vNt_y.xy = -vNt_y.xy; + return vNt_y; +} +vec3 _t_normal_post_z(vec3 vNt0) +{ + vec3 vNt_z = _t_normal_post_1(vNt0, sign(vary_vertex_normal.z)); + return vNt_z; +} + +PBRMix terrain_sample_pbr( + TerrainCoord terrain_coord + , TerrainTriplanar tw + , sampler2D tex_col + , sampler2D tex_orm + , sampler2D tex_vNt +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) + , sampler2D tex_emissive +#endif + ) +{ + 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)) + switch (tw.type & SAMPLE_X) + { + case SAMPLE_X: + PBRMix mix_x = sample_pbr( + get_uv_x() + , tex_col + , tex_orm + , tex_vNt +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) + , tex_emissive +#endif + ); + // Triplanar-specific normal texture fix + mix_x.vNt = _t_normal_post_x(mix_x.vNt); + mix = mix_pbr(mix, mix_x, tw.weight.x); + break; + default: + break; + } + + switch (tw.type & SAMPLE_Y) + { + case SAMPLE_Y: + PBRMix mix_y = sample_pbr( + get_uv_y() + , tex_col + , tex_orm + , tex_vNt +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) + , tex_emissive +#endif + ); + // Triplanar-specific normal texture fix + mix_y.vNt = _t_normal_post_y(mix_y.vNt); + mix = mix_pbr(mix, mix_y, tw.weight.y); + break; + default: + break; + } + + switch (tw.type & SAMPLE_Z) + { + case SAMPLE_Z: + PBRMix mix_z = sample_pbr( + get_uv_z() + , tex_col + , tex_orm + , tex_vNt +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) + , tex_emissive +#endif + ); + // Triplanar-specific normal texture fix + // *NOTE: Bottom face has not been tested + mix_z.vNt = _t_normal_post_z(mix_z.vNt); + mix = mix_pbr(mix, mix_z, tw.weight.z); + break; + default: + break; + } + + return mix; +} + +#elif TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 1 + +#define TerrainCoord vec2 + +#define terrain_sample_pbr sample_pbr + +#endif + +PBRMix multiply_factors_pbr( + PBRMix mix_in + , vec4 factor_col + , vec3 factor_orm +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) + , vec3 factor_emissive +#endif + ) +{ + PBRMix mix = mix_in; + mix.col *= factor_col; + mix.orm *= factor_orm; +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) + mix.emissive *= factor_emissive; +#endif + return mix; +} + +PBRMix terrain_sample_and_multiply_pbr( + TerrainCoord terrain_coord + , sampler2D tex_col + , sampler2D tex_orm + , sampler2D tex_vNt +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) + , sampler2D tex_emissive +#endif + , vec4 factor_col + , vec3 factor_orm +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) + , vec3 factor_emissive +#endif + ) +{ + PBRMix mix = terrain_sample_pbr( + terrain_coord +#if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3 + , _t_triplanar() +#endif + , tex_col + , tex_orm + , tex_vNt +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) + , tex_emissive +#endif + ); + + mix = multiply_factors_pbr(mix + , factor_col + , factor_orm +#if (TERRAIN_PBR_DETAIL >= TERRAIN_PBR_DETAIL_EMISSIVE) + , factor_emissive +#endif + ); + + return mix; +} diff --git a/indra/newview/app_settings/shaders/class1/deferred/pbrterrainV.glsl b/indra/newview/app_settings/shaders/class1/deferred/pbrterrainV.glsl new file mode 100644 index 0000000000..dbb9404219 --- /dev/null +++ b/indra/newview/app_settings/shaders/class1/deferred/pbrterrainV.glsl @@ -0,0 +1,93 @@ +/** + * @file class1\environment\pbrterrainV.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 + * $/LicenseInfo$ + */ + +uniform mat3 normal_matrix; +uniform mat4 texture_matrix0; +uniform mat4 modelview_projection_matrix; + +in vec3 position; +in vec3 normal; +in vec4 tangent; +in vec4 diffuse_color; +in vec2 texcoord1; + +#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; +out vec4 vary_texcoord0; +out vec4 vary_texcoord1; + +// *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; + +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); + +void main() +{ + //transform vertex + gl_Position = modelview_projection_matrix * vec4(position.xyz, 1.0); + + vec3 n = normal_matrix * normal; + vary_vertex_normal = normal; + 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(tangent_space_transform(vec4(t, tangent.w), n, texture_base_color_transform, texture_matrix0)); + vary_sign = tangent.w; + 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. +#if TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 3 + // xy + vary_coords[0].xy = texture_transform(position.xy, texture_base_color_transform, texture_matrix0); + // yz + vary_coords[0].zw = texture_transform(position.yz, texture_base_color_transform, texture_matrix0); + // (-x)z + vary_coords[1].xy = texture_transform(position.xz * vec2(-1, 1), texture_base_color_transform, texture_matrix0); +#elif TERRAIN_PLANAR_TEXTURE_SAMPLE_COUNT == 1 + vary_texcoord0.xy = texture_transform(position.xy, texture_base_color_transform, texture_matrix0); +#endif + + vec4 tc = vec4(texcoord1,0,1); + 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); +} diff --git a/indra/newview/app_settings/shaders/class1/deferred/postDeferredGammaCorrect.glsl b/indra/newview/app_settings/shaders/class1/deferred/postDeferredGammaCorrect.glsl index 64e6bc9da2..3443785e1a 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/postDeferredGammaCorrect.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/postDeferredGammaCorrect.glsl @@ -106,7 +106,7 @@ vec3 toneMap(vec3 color) color *= exposure * exp_scale; // mix ACES and Linear here as a compromise to avoid over-darkening legacy content - color = mix(toneMapACES_Hill(color), color, 0.333); + color = mix(toneMapACES_Hill(color), color, 0.3); #endif return color; diff --git a/indra/newview/app_settings/shaders/class1/deferred/terrainV.glsl b/indra/newview/app_settings/shaders/class1/deferred/terrainV.glsl index f6d3b59e85..33a78fd26d 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/terrainV.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/terrainV.glsl @@ -30,7 +30,6 @@ uniform mat4 modelview_projection_matrix; in vec3 position; in vec3 normal; in vec4 diffuse_color; -in vec2 texcoord0; in vec2 texcoord1; out vec3 pos; @@ -41,18 +40,16 @@ out vec4 vary_texcoord1; uniform vec4 object_plane_s; uniform vec4 object_plane_t; -vec4 texgen_object(vec4 vpos, vec4 tc, mat4 mat, vec4 tp0, vec4 tp1) +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 = tc.z; - tcoord.w = tc.w; tcoord = mat * tcoord; - return tcoord; + return tcoord.xy; } void main() @@ -67,7 +64,7 @@ void main() vary_normal = normalize(normal_matrix * normal); // Transform and pass tex coords - vary_texcoord0.xy = texgen_object(vec4(position, 1.0), vec4(texcoord0,0,1), texture_matrix0, object_plane_s, object_plane_t).xy; + vary_texcoord0.xy = texgen_object(vec4(position, 1.0), texture_matrix0, object_plane_s, object_plane_t); vec4 t = vec4(texcoord1,0,1); diff --git a/indra/newview/app_settings/shaders/class1/deferred/textureUtilV.glsl b/indra/newview/app_settings/shaders/class1/deferred/textureUtilV.glsl index 636dfed4ba..732333311c 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/textureUtilV.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/textureUtilV.glsl @@ -65,7 +65,7 @@ vec2 texture_transform(vec2 vertex_texcoord, vec4[2] khr_gltf_transform, mat4 sl // Apply texture animation first to avoid shearing and other artifacts texcoord = (sl_animation_transform * vec4(texcoord, 0, 1)).xy; // Convert to left-handed coordinate system. The offset of 1 is necessary - // for rotations to be applied correctly. + // for rotation and scale to be applied correctly. texcoord.y = 1.0 - texcoord.y; texcoord = khr_texture_transform(texcoord, khr_gltf_transform[0].xy, khr_gltf_transform[0].z, khr_gltf_transform[1].xy); // Convert back to right-handed coordinate system |