From 31e2fa5e50bc5aad265e8ec12613223eeb3ae3e1 Mon Sep 17 00:00:00 2001 From: Dave Parks Date: Tue, 21 Jun 2022 22:44:30 -0500 Subject: SL-17600 WIP -- Proper radiance maps (not just mipped cubemaps). --- autobuild.xml | 56 +++++++ indra/cmake/VulkanGltf.cmake | 5 + indra/llrender/llcubemaparray.cpp | 44 ++++++ indra/llrender/llcubemaparray.h | 9 +- indra/newview/CMakeLists.txt | 1 + .../shaders/class1/interface/radianceGenF.glsl | 167 +++++++++++++++++++++ .../shaders/class1/interface/radianceGenV.glsl | 38 +++++ .../shaders/class3/deferred/reflectionProbeF.glsl | 7 +- indra/newview/llreflectionmapmanager.cpp | 50 +++++- indra/newview/llreflectionmapmanager.h | 1 + indra/newview/llviewershadermgr.cpp | 12 ++ indra/newview/llviewershadermgr.h | 1 + 12 files changed, 384 insertions(+), 7 deletions(-) create mode 100644 indra/cmake/VulkanGltf.cmake create mode 100644 indra/newview/app_settings/shaders/class1/interface/radianceGenF.glsl create mode 100644 indra/newview/app_settings/shaders/class1/interface/radianceGenV.glsl diff --git a/autobuild.xml b/autobuild.xml index aaff2d1360..712b917b16 100644 --- a/autobuild.xml +++ b/autobuild.xml @@ -3461,6 +3461,62 @@ Copyright (c) 2012, 2014, 2015, 2016 nghttp2 contributors version 3.0.16.565299 + vulkan_gltf + + canonical_repo + https://bitbucket.org/lindenlab/3p-vulkan-gltf-pbr + copyright + Copyright (c) 2018 Sascha Willems + description + Vulkan GLTF Sample Implementation + license + Copyright (c) 2018 Sascha Willems + license_file + LICENSES/vulkan_gltf.txt + name + vulkan_gltf + platforms + + darwin64 + + archive + + hash + 8cff2060843db3db788511ee34a8e8cc + url + https://automated-builds-secondlife-com.s3.amazonaws.com/ct2/101316/891509/vulkan_gltf-1-darwin64-572743.tar.bz2 + + name + darwin64 + + windows + + archive + + hash + 58eea384be49ba756ce9c5e66669540b + url + https://automated-builds-secondlife-com.s3.amazonaws.com/ct2/101318/891520/vulkan_gltf-1-windows-572743.tar.bz2 + + name + windows + + windows64 + + archive + + hash + 79b6a11622c2f83cfc2b7cd1fafb867b + url + https://automated-builds-secondlife-com.s3.amazonaws.com/ct2/101319/891521/vulkan_gltf-1-windows64-572743.tar.bz2 + + name + windows64 + + + version + 1 + xmlrpc-epi copyright diff --git a/indra/cmake/VulkanGltf.cmake b/indra/cmake/VulkanGltf.cmake new file mode 100644 index 0000000000..94541d5307 --- /dev/null +++ b/indra/cmake/VulkanGltf.cmake @@ -0,0 +1,5 @@ +# -*- cmake -*- +include(Prebuilt) + +use_prebuilt_binary(vulkan_gltf) + diff --git a/indra/llrender/llcubemaparray.cpp b/indra/llrender/llcubemaparray.cpp index e4081c1154..438d92cdba 100644 --- a/indra/llrender/llcubemaparray.cpp +++ b/indra/llrender/llcubemaparray.cpp @@ -53,6 +53,50 @@ GLenum LLCubeMapArray::sTargets[6] = GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB }; +LLVector3 LLCubeMapArray::sLookVecs[6] = +{ + LLVector3(1, 0, 0), + LLVector3(-1, 0, 0), + LLVector3(0, 1, 0), + LLVector3(0, -1, 0), + LLVector3(0, 0, 1), + LLVector3(0, 0, -1) +}; + +LLVector3 LLCubeMapArray::sUpVecs[6] = +{ + LLVector3(0, -1, 0), + LLVector3(0, -1, 0), + LLVector3(0, 0, 1), + LLVector3(0, 0, -1), + LLVector3(0, -1, 0), + LLVector3(0, -1, 0) +}; + +LLVector3 LLCubeMapArray::sClipToCubeLookVecs[6] = +{ + LLVector3(0, 0, -1), //GOOD + LLVector3(0, 0, 1), //GOOD + + LLVector3(1, 0, 0), // GOOD + LLVector3(1, 0, 0), // GOOD + + LLVector3(1, 0, 0), + LLVector3(-1, 0, 0), +}; + +LLVector3 LLCubeMapArray::sClipToCubeUpVecs[6] = +{ + LLVector3(-1, 0, 0), //GOOD + LLVector3(1, 0, 0), //GOOD + + LLVector3(0, 1, 0), // GOOD + LLVector3(0, -1, 0), // GOOD + + LLVector3(0, 0, -1), + LLVector3(0, 0, 1) +}; + LLCubeMapArray::LLCubeMapArray() : mTextureStage(0) { diff --git a/indra/llrender/llcubemaparray.h b/indra/llrender/llcubemaparray.h index 52e21f1dda..cbc0692afb 100644 --- a/indra/llrender/llcubemaparray.h +++ b/indra/llrender/llcubemaparray.h @@ -32,13 +32,20 @@ class LLVector3; -// Environment map hack! class LLCubeMapArray : public LLRefCount { public: LLCubeMapArray(); static GLenum sTargets[6]; + + // look and up vectors for each cube face (agent space) + static LLVector3 sLookVecs[6]; + static LLVector3 sUpVecs[6]; + + // look and up vectors for each cube face (clip space) + static LLVector3 sClipToCubeLookVecs[6]; + static LLVector3 sClipToCubeUpVecs[6]; // allocate a cube map array // res - resolution of each cube face diff --git a/indra/newview/CMakeLists.txt b/indra/newview/CMakeLists.txt index 0d2b99a8cd..5e0d3b52b4 100644 --- a/indra/newview/CMakeLists.txt +++ b/indra/newview/CMakeLists.txt @@ -56,6 +56,7 @@ include(UnixInstall) include(ViewerMiscLibs) include(ViewerManager) include(VisualLeakDetector) +include(VulkanGltf) include(ZLIB) include(URIPARSER) diff --git a/indra/newview/app_settings/shaders/class1/interface/radianceGenF.glsl b/indra/newview/app_settings/shaders/class1/interface/radianceGenF.glsl new file mode 100644 index 0000000000..27008b8a1c --- /dev/null +++ b/indra/newview/app_settings/shaders/class1/interface/radianceGenF.glsl @@ -0,0 +1,167 @@ +/** + * @file radianceGenF.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 REFMAP_COUNT 256 + +#ifdef DEFINE_GL_FRAGCOLOR +out vec4 frag_color; +#else +#define frag_color gl_FragColor +#endif + +uniform samplerCubeArray reflectionProbes; + +VARYING vec3 vary_dir; + +// ============================================================================================================= +// Parts of this file are (c) 2018 Sascha Willems +// SNIPPED FROM https://github.com/SaschaWillems/Vulkan-glTF-PBR/blob/master/data/shaders/prefilterenvmap.frag +/* +MIT License + +Copyright (c) 2018 Sascha Willems + +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. +*/ +// ============================================================================================================= + + +uniform float roughness; + +uniform int numSamples; + +const float PI = 3.1415926536; + +// Based omn http://byteblacksmith.com/improvements-to-the-canonical-one-liner-glsl-rand-for-opengl-es-2-0/ +float random(vec2 co) +{ + float a = 12.9898; + float b = 78.233; + float c = 43758.5453; + float dt= dot(co.xy ,vec2(a,b)); + float sn= mod(dt,3.14); + return fract(sin(sn) * c); +} + +vec2 hammersley2d(uint i, uint N) +{ + // Radical inverse based on http://holger.dammertz.org/stuff/notes_HammersleyOnHemisphere.html + uint bits = (i << 16u) | (i >> 16u); + bits = ((bits & 0x55555555u) << 1u) | ((bits & 0xAAAAAAAAu) >> 1u); + bits = ((bits & 0x33333333u) << 2u) | ((bits & 0xCCCCCCCCu) >> 2u); + bits = ((bits & 0x0F0F0F0Fu) << 4u) | ((bits & 0xF0F0F0F0u) >> 4u); + bits = ((bits & 0x00FF00FFu) << 8u) | ((bits & 0xFF00FF00u) >> 8u); + float rdi = float(bits) * 2.3283064365386963e-10; + return vec2(float(i) /float(N), rdi); +} + +// Based on http://blog.selfshadow.com/publications/s2013-shading-course/karis/s2013_pbs_epic_slides.pdf +vec3 importanceSample_GGX(vec2 Xi, float roughness, vec3 normal) +{ + // Maps a 2D point to a hemisphere with spread based on roughness + float alpha = roughness * roughness; + float phi = 2.0 * PI * Xi.x + random(normal.xz) * 0.1; + float cosTheta = sqrt((1.0 - Xi.y) / (1.0 + (alpha*alpha - 1.0) * Xi.y)); + float sinTheta = sqrt(1.0 - cosTheta * cosTheta); + vec3 H = vec3(sinTheta * cos(phi), sinTheta * sin(phi), cosTheta); + + // Tangent space + vec3 up = abs(normal.z) < 0.999 ? vec3(0.0, 0.0, 1.0) : vec3(1.0, 0.0, 0.0); + vec3 tangentX = normalize(cross(up, normal)); + vec3 tangentY = normalize(cross(normal, tangentX)); + + // Convert to world Space + return normalize(tangentX * H.x + tangentY * H.y + normal * H.z); +} + +// Normal Distribution function +float D_GGX(float dotNH, float roughness) +{ + float alpha = roughness * roughness; + float alpha2 = alpha * alpha; + float denom = dotNH * dotNH * (alpha2 - 1.0) + 1.0; + return (alpha2)/(PI * denom*denom); +} + +vec3 prefilterEnvMap(vec3 R, float roughness) +{ + vec3 N = R; + vec3 V = R; + vec3 color = vec3(0.0); + float totalWeight = 0.0; + float envMapDim = 256.0; + for(uint i = 0u; i < numSamples; i++) { + vec2 Xi = hammersley2d(i, numSamples); + vec3 H = importanceSample_GGX(Xi, roughness, N); + vec3 L = 2.0 * dot(V, H) * H - V; + float dotNL = clamp(dot(N, L), 0.0, 1.0); + if(dotNL > 0.0) { + // Filtering based on https://placeholderart.wordpress.com/2015/07/28/implementation-notes-runtime-environment-map-filtering-for-image-based-lighting/ + + float dotNH = clamp(dot(N, H), 0.0, 1.0); + float dotVH = clamp(dot(V, H), 0.0, 1.0); + + // Probability Distribution Function + float pdf = D_GGX(dotNH, roughness) * dotNH / (4.0 * dotVH) + 0.0001; + // Slid angle of current smple + float omegaS = 1.0 / (float(numSamples) * pdf); + // Solid angle of 1 pixel across all cube faces + float omegaP = 4.0 * PI / (6.0 * envMapDim * envMapDim); + // Biased (+1.0) mip level for better result + float mipLevel = roughness == 0.0 ? 0.0 : max(0.5 * log2(omegaS / omegaP) + 1.0, 0.0f); + color += textureLod(reflectionProbes, vec4(L,REFMAP_COUNT), mipLevel).rgb * dotNL; + totalWeight += dotNL; + + } + } + return (color / totalWeight); +} + +void main() +{ + vec3 N = normalize(vary_dir); + frag_color = vec4(prefilterEnvMap(N, roughness), 1.0); +} +// ============================================================================================================= + diff --git a/indra/newview/app_settings/shaders/class1/interface/radianceGenV.glsl b/indra/newview/app_settings/shaders/class1/interface/radianceGenV.glsl new file mode 100644 index 0000000000..5f5d9396ff --- /dev/null +++ b/indra/newview/app_settings/shaders/class1/interface/radianceGenV.glsl @@ -0,0 +1,38 @@ +/** + * @file radianceGenV.glsl + * + * $LicenseInfo:firstyear=2022&license=viewerlgpl$ + * Second Life Viewer Source Code + * Copyright (C) 2011, 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 mat4 modelview_matrix; + +ATTRIBUTE vec3 position; + +VARYING vec3 vary_dir; + +void main() +{ + gl_Position = vec4(position, 1.0); + + vary_dir = vec3(modelview_matrix * vec4(position, 1.0)).xyz; +} + diff --git a/indra/newview/app_settings/shaders/class3/deferred/reflectionProbeF.glsl b/indra/newview/app_settings/shaders/class3/deferred/reflectionProbeF.glsl index 4a40f691be..40378b49ea 100644 --- a/indra/newview/app_settings/shaders/class3/deferred/reflectionProbeF.glsl +++ b/indra/newview/app_settings/shaders/class3/deferred/reflectionProbeF.glsl @@ -334,8 +334,9 @@ vec3 tapRefMap(vec3 pos, vec3 dir, float lod, vec3 c, float r2, int i) v -= c; v = env_mat * v; { - float min_lod = textureQueryLod(reflectionProbes,v).y; // lower is higher res - return textureLod(reflectionProbes, vec4(v.xyz, refIndex[i].x), max(min_lod, lod)).rgb; + //float min_lod = textureQueryLod(reflectionProbes,v).y; // lower is higher res + //return textureLod(reflectionProbes, vec4(v.xyz, refIndex[i].x), max(min_lod, lod)).rgb; + return textureLod(reflectionProbes, vec4(v.xyz, refIndex[i].x), lod).rgb; //return texture(reflectionProbes, vec4(v.xyz, refIndex[i].x)).rgb; } } @@ -450,7 +451,7 @@ void sampleReflectionProbes(inout vec3 ambenv, inout vec3 glossenv, inout vec3 l vec3 refnormpersp = reflect(pos.xyz, norm.xyz); - ambenv = sampleProbeAmbient(pos, norm, reflection_lods-1); + ambenv = sampleProbeAmbient(pos, norm, reflection_lods-2); if (glossiness > 0.0) { diff --git a/indra/newview/llreflectionmapmanager.cpp b/indra/newview/llreflectionmapmanager.cpp index 752427f0fa..025b8457c1 100644 --- a/indra/newview/llreflectionmapmanager.cpp +++ b/indra/newview/llreflectionmapmanager.cpp @@ -80,7 +80,8 @@ void LLReflectionMapManager::update() if (mTexture.isNull()) { mTexture = new LLCubeMapArray(); - mTexture->allocate(LL_REFLECTION_PROBE_RESOLUTION, 3, LL_REFLECTION_PROBE_COUNT); + // store LL_REFLECTION_PROBE_COUNT+1 cube maps, final cube map is used for render target and radiance map generation source) + mTexture->allocate(LL_REFLECTION_PROBE_RESOLUTION, 3, LL_REFLECTION_PROBE_COUNT+2); } if (!mRenderTarget.isComplete()) @@ -395,7 +396,7 @@ void LLReflectionMapManager::updateProbeFace(LLReflectionMap* probe, U32 face) gPipeline.mRT = &gPipeline.mMainRT; mRenderTarget.flush(); - // generate mipmaps + // downsample to placeholder map { LLGLDepthTest depth(GL_FALSE, GL_FALSE); LLGLDisable cull(GL_CULL_FACE); @@ -451,7 +452,8 @@ void LLReflectionMapManager::updateProbeFace(LLReflectionMap* probe, U32 face) if (mip >= 0) { mTexture->bind(0); - glCopyTexSubImage3D(GL_TEXTURE_CUBE_MAP_ARRAY, mip, 0, 0, probe->mCubeIndex * 6 + face, 0, 0, res, res); + //glCopyTexSubImage3D(GL_TEXTURE_CUBE_MAP_ARRAY, mip, 0, 0, probe->mCubeIndex * 6 + face, 0, 0, res, res); + glCopyTexSubImage3D(GL_TEXTURE_CUBE_MAP_ARRAY, mip, 0, 0, LL_REFLECTION_PROBE_COUNT * 6 + face, 0, 0, res, res); mTexture->unbind(); } mMipChain[i].flush(); @@ -463,6 +465,48 @@ void LLReflectionMapManager::updateProbeFace(LLReflectionMap* probe, U32 face) gReflectionMipProgram.unbind(); } + + if (face == 5) + { + //generate radiance map + gRadianceGenProgram.bind(); + S32 channel = gRadianceGenProgram.enableTexture(LLShaderMgr::REFLECTION_PROBES, LLTexUnit::TT_CUBE_MAP_ARRAY); + mTexture->bind(channel); + + for (int cf = 0; cf < 6; ++cf) + { // for each cube face + LLCoordFrame frame; + frame.lookAt(LLVector3(0, 0, 0), LLCubeMapArray::sClipToCubeLookVecs[cf], LLCubeMapArray::sClipToCubeUpVecs[cf]); + + F32 mat[16]; + frame.getOpenGLRotation(mat); + gGL.loadMatrix(mat); + + for (int i = 0; i < mMipChain.size(); ++i) + { + mMipChain[i].bindTarget(); + static LLStaticHashedString sRoughness("roughness"); + static LLStaticHashedString sNumSamples("numSamples"); + + gRadianceGenProgram.uniform1i(sNumSamples, 32); + gRadianceGenProgram.uniform1f(sRoughness, (F32)i / (F32)(mMipChain.size() - 1)); + + gGL.begin(gGL.QUADS); + gGL.vertex3f(-1, -1, -1); + gGL.vertex3f(1, -1, -1); + gGL.vertex3f(1, 1, -1); + gGL.vertex3f(-1, 1, -1); + gGL.end(); + gGL.flush(); + + + + S32 res = mMipChain[i].getWidth(); + glCopyTexSubImage3D(GL_TEXTURE_CUBE_MAP_ARRAY, i, 0, 0, probe->mCubeIndex * 6 + cf, 0, 0, res, res); + mMipChain[i].flush(); + } + } + } } void LLReflectionMapManager::rebuild() diff --git a/indra/newview/llreflectionmapmanager.h b/indra/newview/llreflectionmapmanager.h index 3b5cdc5520..551a461e63 100644 --- a/indra/newview/llreflectionmapmanager.h +++ b/indra/newview/llreflectionmapmanager.h @@ -29,6 +29,7 @@ #include "llreflectionmap.h" #include "llrendertarget.h" #include "llcubemaparray.h" +#include "llcubemap.h" class LLSpatialGroup; class LLViewerObject; diff --git a/indra/newview/llviewershadermgr.cpp b/indra/newview/llviewershadermgr.cpp index d4ee754d5c..d5ca915da5 100644 --- a/indra/newview/llviewershadermgr.cpp +++ b/indra/newview/llviewershadermgr.cpp @@ -85,6 +85,7 @@ LLGLSLShader gCustomAlphaProgram; LLGLSLShader gGlowCombineProgram; LLGLSLShader gSplatTextureRectProgram; LLGLSLShader gReflectionMipProgram; +LLGLSLShader gRadianceGenProgram; LLGLSLShader gGlowCombineFXAAProgram; LLGLSLShader gTwoTextureAddProgram; LLGLSLShader gTwoTextureCompareProgram; @@ -762,6 +763,7 @@ void LLViewerShaderMgr::unloadShaders() gGlowCombineProgram.unload(); gSplatTextureRectProgram.unload(); gReflectionMipProgram.unload(); + gRadianceGenProgram.unload(); gGlowCombineFXAAProgram.unload(); gTwoTextureAddProgram.unload(); gTwoTextureCompareProgram.unload(); @@ -3821,6 +3823,16 @@ BOOL LLViewerShaderMgr::loadShadersInterface() } } + if (success) + { + gRadianceGenProgram.mName = "Radiance Gen Shader"; + gRadianceGenProgram.mShaderFiles.clear(); + gRadianceGenProgram.mShaderFiles.push_back(make_pair("interface/radianceGenV.glsl", GL_VERTEX_SHADER_ARB)); + gRadianceGenProgram.mShaderFiles.push_back(make_pair("interface/radianceGenF.glsl", GL_FRAGMENT_SHADER_ARB)); + gRadianceGenProgram.mShaderLevel = mShaderLevel[SHADER_INTERFACE]; + success = gRadianceGenProgram.createShader(NULL, NULL); + } + if( !success ) { mShaderLevel[SHADER_INTERFACE] = 0; diff --git a/indra/newview/llviewershadermgr.h b/indra/newview/llviewershadermgr.h index f0187db302..fa5b2121b9 100644 --- a/indra/newview/llviewershadermgr.h +++ b/indra/newview/llviewershadermgr.h @@ -162,6 +162,7 @@ extern LLGLSLShader gCustomAlphaProgram; extern LLGLSLShader gGlowCombineProgram; extern LLGLSLShader gSplatTextureRectProgram; extern LLGLSLShader gReflectionMipProgram; +extern LLGLSLShader gRadianceGenProgram; extern LLGLSLShader gGlowCombineFXAAProgram; extern LLGLSLShader gDebugProgram; extern LLGLSLShader gClipProgram; -- cgit v1.2.3 From 4273b262072553aaa1a805ff08008de95da47aac Mon Sep 17 00:00:00 2001 From: Dave Parks Date: Wed, 22 Jun 2022 10:10:24 -0500 Subject: Add tinygltf and Vulkan GLTF to licenses.txt --- indra/newview/licenses-mac.txt | 52 ++++++++++++++++++++++++++++++++++++++++ indra/newview/licenses-win32.txt | 49 +++++++++++++++++++++++++++++++++++++ 2 files changed, 101 insertions(+) diff --git a/indra/newview/licenses-mac.txt b/indra/newview/licenses-mac.txt index fba6a55da3..29b5a919bd 100644 --- a/indra/newview/licenses-mac.txt +++ b/indra/newview/licenses-mac.txt @@ -719,3 +719,55 @@ 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. + + +============ +tinygltf +============ +MIT License + +Copyright (c) 2017 Syoyo Fujita, Aurélien Chatelain and many contributors + +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. + +============== +Vulkan GLTF +============== +MIT License + +Copyright (c) 2018 Sascha Willems + +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. + diff --git a/indra/newview/licenses-win32.txt b/indra/newview/licenses-win32.txt index 837d92139d..eddc9a4475 100644 --- a/indra/newview/licenses-win32.txt +++ b/indra/newview/licenses-win32.txt @@ -796,3 +796,52 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +============ +tinygltf +============ +MIT License + +Copyright (c) 2017 Syoyo Fujita, Aurélien Chatelain and many contributors + +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. + +============== +Vulkan GLTF +============== +MIT License + +Copyright (c) 2018 Sascha Willems + +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. -- cgit v1.2.3 From d0d1b832d4983f35ab29947eb6fda54a8aa48f8a Mon Sep 17 00:00:00 2001 From: Dave Parks Date: Wed, 22 Jun 2022 13:25:50 -0500 Subject: SL-17600 Proper irradiance probes. --- indra/llrender/llshadermgr.cpp | 1 + indra/llrender/llshadermgr.h | 1 + .../shaders/class1/interface/irradianceGenF.glsl | 99 +++++++++++++++++ .../shaders/class1/interface/irradianceGenV.glsl | 38 +++++++ .../shaders/class1/interface/radianceGenF.glsl | 5 +- .../shaders/class3/deferred/reflectionProbeF.glsl | 120 +++++++++++++++++---- indra/newview/llreflectionmapmanager.cpp | 68 +++++++++++- indra/newview/llreflectionmapmanager.h | 6 +- indra/newview/llviewershadermgr.cpp | 12 +++ indra/newview/llviewershadermgr.h | 1 + indra/newview/pipeline.cpp | 14 ++- 11 files changed, 334 insertions(+), 31 deletions(-) create mode 100644 indra/newview/app_settings/shaders/class1/interface/irradianceGenF.glsl create mode 100644 indra/newview/app_settings/shaders/class1/interface/irradianceGenV.glsl diff --git a/indra/llrender/llshadermgr.cpp b/indra/llrender/llshadermgr.cpp index e2e1ff9714..10939db5e4 100644 --- a/indra/llrender/llshadermgr.cpp +++ b/indra/llrender/llshadermgr.cpp @@ -1171,6 +1171,7 @@ void LLShaderMgr::initAttribsAndUniforms() mReservedUniforms.push_back("bumpMap2"); mReservedUniforms.push_back("environmentMap"); mReservedUniforms.push_back("reflectionProbes"); + mReservedUniforms.push_back("irradianceProbes"); mReservedUniforms.push_back("cloud_noise_texture"); mReservedUniforms.push_back("cloud_noise_texture_next"); mReservedUniforms.push_back("fullbright"); diff --git a/indra/llrender/llshadermgr.h b/indra/llrender/llshadermgr.h index d3bb2b9db4..5b19dd53d1 100644 --- a/indra/llrender/llshadermgr.h +++ b/indra/llrender/llshadermgr.h @@ -81,6 +81,7 @@ public: BUMP_MAP2, // "bumpMap2" ENVIRONMENT_MAP, // "environmentMap" REFLECTION_PROBES, // "reflectionProbes" + IRRADIANCE_PROBES, // "irradianceProbes" CLOUD_NOISE_MAP, // "cloud_noise_texture" CLOUD_NOISE_MAP_NEXT, // "cloud_noise_texture_next" FULLBRIGHT, // "fullbright" diff --git a/indra/newview/app_settings/shaders/class1/interface/irradianceGenF.glsl b/indra/newview/app_settings/shaders/class1/interface/irradianceGenF.glsl new file mode 100644 index 0000000000..2028509775 --- /dev/null +++ b/indra/newview/app_settings/shaders/class1/interface/irradianceGenF.glsl @@ -0,0 +1,99 @@ +/** + * @file irradianceGenF.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]*/ + + +#ifdef DEFINE_GL_FRAGCOLOR +out vec4 frag_color; +#else +#define frag_color gl_FragColor +#endif + +uniform samplerCubeArray reflectionProbes; +uniform int sourceIdx; + +VARYING vec3 vary_dir; + +// ============================================================================================================= +// Parts of this file are (c) 2018 Sascha Willems +// SNIPPED FROM https://github.com/SaschaWillems/Vulkan-glTF-PBR/blob/master/data/shaders/irradiancecube.frag +/* +MIT License + +Copyright (c) 2018 Sascha Willems + +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 PI 3.1415926535897932384626433832795 + +float deltaPhi = PI/16.0; +float deltaTheta = deltaPhi*0.25; + +void main() +{ + vec3 N = normalize(vary_dir); + vec3 up = vec3(0.0, 1.0, 0.0); + vec3 right = normalize(cross(up, N)); + up = cross(N, right); + + const float TWO_PI = PI * 2.0; + const float HALF_PI = PI * 0.5; + + vec3 color = vec3(0.0); + uint sampleCount = 0u; + for (float phi = 0.0; phi < TWO_PI; phi += deltaPhi) { + for (float theta = 0.0; theta < HALF_PI; theta += deltaTheta) { + vec3 tempVec = cos(phi) * right + sin(phi) * up; + vec3 sampleVector = cos(theta) * N + sin(theta) * tempVec; + color += textureLod(reflectionProbes, vec4(sampleVector, sourceIdx), 3).rgb * cos(theta) * sin(theta); + sampleCount++; + } + } + frag_color = vec4(PI * color / float(sampleCount), 1.0); +} +// ============================================================================================================= + diff --git a/indra/newview/app_settings/shaders/class1/interface/irradianceGenV.glsl b/indra/newview/app_settings/shaders/class1/interface/irradianceGenV.glsl new file mode 100644 index 0000000000..5190abf17c --- /dev/null +++ b/indra/newview/app_settings/shaders/class1/interface/irradianceGenV.glsl @@ -0,0 +1,38 @@ +/** + * @file irradianceGenV.glsl + * + * $LicenseInfo:firstyear=2022&license=viewerlgpl$ + * Second Life Viewer Source Code + * Copyright (C) 2011, 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 mat4 modelview_matrix; + +ATTRIBUTE vec3 position; + +VARYING vec3 vary_dir; + +void main() +{ + gl_Position = vec4(position, 1.0); + + vary_dir = vec3(modelview_matrix * vec4(position, 1.0)).xyz; +} + diff --git a/indra/newview/app_settings/shaders/class1/interface/radianceGenF.glsl b/indra/newview/app_settings/shaders/class1/interface/radianceGenF.glsl index 27008b8a1c..3fc227eae7 100644 --- a/indra/newview/app_settings/shaders/class1/interface/radianceGenF.glsl +++ b/indra/newview/app_settings/shaders/class1/interface/radianceGenF.glsl @@ -26,8 +26,6 @@ /*[EXTRA_CODE_HERE]*/ -#define REFMAP_COUNT 256 - #ifdef DEFINE_GL_FRAGCOLOR out vec4 frag_color; #else @@ -35,6 +33,7 @@ out vec4 frag_color; #endif uniform samplerCubeArray reflectionProbes; +uniform int sourceIdx; VARYING vec3 vary_dir; @@ -150,7 +149,7 @@ vec3 prefilterEnvMap(vec3 R, float roughness) float omegaP = 4.0 * PI / (6.0 * envMapDim * envMapDim); // Biased (+1.0) mip level for better result float mipLevel = roughness == 0.0 ? 0.0 : max(0.5 * log2(omegaS / omegaP) + 1.0, 0.0f); - color += textureLod(reflectionProbes, vec4(L,REFMAP_COUNT), mipLevel).rgb * dotNL; + color += textureLod(reflectionProbes, vec4(L,sourceIdx), mipLevel).rgb * dotNL; totalWeight += dotNL; } diff --git a/indra/newview/app_settings/shaders/class3/deferred/reflectionProbeF.glsl b/indra/newview/app_settings/shaders/class3/deferred/reflectionProbeF.glsl index 40378b49ea..83348077d7 100644 --- a/indra/newview/app_settings/shaders/class3/deferred/reflectionProbeF.glsl +++ b/indra/newview/app_settings/shaders/class3/deferred/reflectionProbeF.glsl @@ -31,6 +31,7 @@ #define REF_SAMPLE_COUNT 64 //maximum number of samples to consider uniform samplerCubeArray reflectionProbes; +uniform samplerCubeArray irradianceProbes; layout (std140, binding = 1) uniform ReflectionProbes { @@ -308,7 +309,7 @@ vec3 boxIntersect(vec3 origin, vec3 dir, int i) -// Tap a sphere based reflection probe +// Tap a reflection probe // pos - position of pixel // dir - pixel normal // lod - which mip to bias towards (lower is higher res, sharper reflections) @@ -334,10 +335,36 @@ vec3 tapRefMap(vec3 pos, vec3 dir, float lod, vec3 c, float r2, int i) v -= c; v = env_mat * v; { - //float min_lod = textureQueryLod(reflectionProbes,v).y; // lower is higher res - //return textureLod(reflectionProbes, vec4(v.xyz, refIndex[i].x), max(min_lod, lod)).rgb; return textureLod(reflectionProbes, vec4(v.xyz, refIndex[i].x), lod).rgb; - //return texture(reflectionProbes, vec4(v.xyz, refIndex[i].x)).rgb; + } +} + +// Tap an irradiance map +// pos - position of pixel +// dir - pixel normal +// c - center of probe +// r2 - radius of probe squared +// i - index of probe +// vi - point at which reflection vector struck the influence volume, in clip space +vec3 tapIrradianceMap(vec3 pos, vec3 dir, vec3 c, float r2, int i) +{ + //lod = max(lod, 1); + // parallax adjustment + + vec3 v; + if (refIndex[i].w < 0) + { + v = boxIntersect(pos, dir, i); + } + else + { + v = sphereIntersect(pos, dir, c, r2); + } + + v -= c; + v = env_mat * v; + { + return texture(irradianceProbes, vec4(v.xyz, refIndex[i].x)).rgb * refParams[i].x; } } @@ -371,7 +398,7 @@ vec3 sampleProbes(vec3 pos, vec3 dir, float lod, float minweight) float atten = 1.0-max(d2-r2, 0.0)/(rr-r2); w *= atten; //w *= p; // boost weight based on priority - col += refcol*w*max(minweight, refParams[i].x); + col += refcol*w; wsum += w; } @@ -394,7 +421,7 @@ vec3 sampleProbes(vec3 pos, vec3 dir, float lod, float minweight) float w = 1.0/d2; w *= w; - col += refcol*w*max(minweight, refParams[i].x); + col += refcol*w; wsum += w; } } @@ -408,24 +435,75 @@ vec3 sampleProbes(vec3 pos, vec3 dir, float lod, float minweight) return col; } -vec3 sampleProbeAmbient(vec3 pos, vec3 dir, float lod) +vec3 sampleProbeAmbient(vec3 pos, vec3 dir) { - vec3 col = sampleProbes(pos, dir, lod, 0.f); + // modified copy/paste of sampleProbes follows, will likely diverge from sampleProbes further + // as irradiance map mixing is tuned independently of radiance map mixing + float wsum = 0.0; + vec3 col = vec3(0,0,0); + float vd2 = dot(pos,pos); // view distance squared - //desaturate - vec3 hcol = col *0.5; - - col *= 2.0; - col = vec3( - col.r + hcol.g + hcol.b, - col.g + hcol.r + hcol.b, - col.b + hcol.r + hcol.g - ); - - col *= 0.333333; + float minweight = 1.0; - return col; + for (int idx = 0; idx < probeInfluences; ++idx) + { + int i = probeIndex[idx]; + if (abs(refIndex[i].w) < max_priority) + { + continue; + } + float r = refSphere[i].w; // radius of sphere volume + float p = float(abs(refIndex[i].w)); // priority + + float rr = r*r; // radius squred + float r1 = r * 0.1; // 75% of radius (outer sphere to start interpolating down) + vec3 delta = pos.xyz-refSphere[i].xyz; + float d2 = dot(delta,delta); + float r2 = r1*r1; + + { + vec3 refcol = tapIrradianceMap(pos, dir, refSphere[i].xyz, rr, i); + + float w = 1.0/d2; + + float atten = 1.0-max(d2-r2, 0.0)/(rr-r2); + w *= atten; + //w *= p; // boost weight based on priority + col += refcol*w; + + wsum += w; + } + } + if (probeInfluences <= 1) + { //edge-of-scene probe or no probe influence, mix in with embiggened version of probes closest to camera + for (int idx = 0; idx < 8; ++idx) + { + if (refIndex[idx].w < 0) + { // don't fallback to box probes, they are *very* specific + continue; + } + int i = idx; + vec3 delta = pos.xyz-refSphere[i].xyz; + float d2 = dot(delta,delta); + + { + vec3 refcol = tapIrradianceMap(pos, dir, refSphere[i].xyz, d2, i); + + float w = 1.0/d2; + w *= w; + col += refcol*w; + wsum += w; + } + } + } + + if (wsum > 0.0) + { + col *= 1.0/wsum; + } + + return col; } // brighten a color so that at least one component is 1 @@ -451,7 +529,7 @@ void sampleReflectionProbes(inout vec3 ambenv, inout vec3 glossenv, inout vec3 l vec3 refnormpersp = reflect(pos.xyz, norm.xyz); - ambenv = sampleProbeAmbient(pos, norm, reflection_lods-2); + ambenv = sampleProbeAmbient(pos, norm); if (glossiness > 0.0) { diff --git a/indra/newview/llreflectionmapmanager.cpp b/indra/newview/llreflectionmapmanager.cpp index 025b8457c1..dfd0d1b9a9 100644 --- a/indra/newview/llreflectionmapmanager.cpp +++ b/indra/newview/llreflectionmapmanager.cpp @@ -80,8 +80,11 @@ void LLReflectionMapManager::update() if (mTexture.isNull()) { mTexture = new LLCubeMapArray(); - // store LL_REFLECTION_PROBE_COUNT+1 cube maps, final cube map is used for render target and radiance map generation source) + // store LL_REFLECTION_PROBE_COUNT+2 cube maps, final two cube maps are used for render target and radiance map generation source) mTexture->allocate(LL_REFLECTION_PROBE_RESOLUTION, 3, LL_REFLECTION_PROBE_COUNT+2); + + mIrradianceMaps = new LLCubeMapArray(); + mIrradianceMaps->allocate(LL_IRRADIANCE_MAP_RESOLUTION, 3, LL_REFLECTION_PROBE_COUNT); } if (!mRenderTarget.isComplete()) @@ -396,6 +399,13 @@ void LLReflectionMapManager::updateProbeFace(LLReflectionMap* probe, U32 face) gPipeline.mRT = &gPipeline.mMainRT; mRenderTarget.flush(); + S32 targetIdx = LL_REFLECTION_PROBE_COUNT; + + if (probe != mUpdatingProbe) + { // this is the "realtime" probe that's updating every frame, use the secondary scratch space channel + targetIdx += 1; + } + // downsample to placeholder map { LLGLDepthTest depth(GL_FALSE, GL_FALSE); @@ -453,7 +463,7 @@ void LLReflectionMapManager::updateProbeFace(LLReflectionMap* probe, U32 face) { mTexture->bind(0); //glCopyTexSubImage3D(GL_TEXTURE_CUBE_MAP_ARRAY, mip, 0, 0, probe->mCubeIndex * 6 + face, 0, 0, res, res); - glCopyTexSubImage3D(GL_TEXTURE_CUBE_MAP_ARRAY, mip, 0, 0, LL_REFLECTION_PROBE_COUNT * 6 + face, 0, 0, res, res); + glCopyTexSubImage3D(GL_TEXTURE_CUBE_MAP_ARRAY, mip, 0, 0, targetIdx * 6 + face, 0, 0, res, res); mTexture->unbind(); } mMipChain[i].flush(); @@ -472,7 +482,9 @@ void LLReflectionMapManager::updateProbeFace(LLReflectionMap* probe, U32 face) gRadianceGenProgram.bind(); S32 channel = gRadianceGenProgram.enableTexture(LLShaderMgr::REFLECTION_PROBES, LLTexUnit::TT_CUBE_MAP_ARRAY); mTexture->bind(channel); - + static LLStaticHashedString sSourceIdx("sourceIdx"); + gRadianceGenProgram.uniform1i(sSourceIdx, targetIdx); + for (int cf = 0; cf < 6; ++cf) { // for each cube face LLCoordFrame frame; @@ -499,13 +511,59 @@ void LLReflectionMapManager::updateProbeFace(LLReflectionMap* probe, U32 face) gGL.end(); gGL.flush(); - - S32 res = mMipChain[i].getWidth(); glCopyTexSubImage3D(GL_TEXTURE_CUBE_MAP_ARRAY, i, 0, 0, probe->mCubeIndex * 6 + cf, 0, 0, res, res); mMipChain[i].flush(); } } + gRadianceGenProgram.unbind(); + + //generate irradiance map + gIrradianceGenProgram.bind(); + channel = gIrradianceGenProgram.enableTexture(LLShaderMgr::REFLECTION_PROBES, LLTexUnit::TT_CUBE_MAP_ARRAY); + mTexture->bind(channel); + + gIrradianceGenProgram.uniform1i(sSourceIdx, targetIdx); + + int start_mip = 0; + // find the mip target to start with based on irradiance map resolution + for (start_mip = 0; start_mip < mMipChain.size(); ++start_mip) + { + if (mMipChain[start_mip].getWidth() == LL_IRRADIANCE_MAP_RESOLUTION) + { + break; + } + } + + for (int cf = 0; cf < 6; ++cf) + { // for each cube face + LLCoordFrame frame; + frame.lookAt(LLVector3(0, 0, 0), LLCubeMapArray::sClipToCubeLookVecs[cf], LLCubeMapArray::sClipToCubeUpVecs[cf]); + + F32 mat[16]; + frame.getOpenGLRotation(mat); + gGL.loadMatrix(mat); + + for (int i = start_mip; i < mMipChain.size(); ++i) + { + mMipChain[i].bindTarget(); + + gGL.begin(gGL.QUADS); + gGL.vertex3f(-1, -1, -1); + gGL.vertex3f(1, -1, -1); + gGL.vertex3f(1, 1, -1); + gGL.vertex3f(-1, 1, -1); + gGL.end(); + gGL.flush(); + + S32 res = mMipChain[i].getWidth(); + mIrradianceMaps->bind(channel); + glCopyTexSubImage3D(GL_TEXTURE_CUBE_MAP_ARRAY, i-start_mip, 0, 0, probe->mCubeIndex * 6 + cf, 0, 0, res, res); + mTexture->bind(channel); + mMipChain[i].flush(); + } + } + gIrradianceGenProgram.unbind(); } } diff --git a/indra/newview/llreflectionmapmanager.h b/indra/newview/llreflectionmapmanager.h index 551a461e63..5f0b11ec17 100644 --- a/indra/newview/llreflectionmapmanager.h +++ b/indra/newview/llreflectionmapmanager.h @@ -39,6 +39,7 @@ class LLViewerObject; // reflection probe resolution #define LL_REFLECTION_PROBE_RESOLUTION 256 +#define LL_IRRADIANCE_MAP_RESOLUTION 64 // reflection probe mininum scale #define LL_REFLECTION_PROBE_MINIMUM_SCALE 1.f; @@ -112,9 +113,12 @@ private: std::vector mMipChain; - // storage for reflection probes + // storage for reflection probe radiance maps (plus two scratch space cubemaps) LLPointer mTexture; + // storage for reflection probe irradiance maps + LLPointer mIrradianceMaps; + // array indicating if a particular cubemap is free bool mCubeFree[LL_REFLECTION_PROBE_COUNT]; diff --git a/indra/newview/llviewershadermgr.cpp b/indra/newview/llviewershadermgr.cpp index d5ca915da5..c041d2470c 100644 --- a/indra/newview/llviewershadermgr.cpp +++ b/indra/newview/llviewershadermgr.cpp @@ -86,6 +86,7 @@ LLGLSLShader gGlowCombineProgram; LLGLSLShader gSplatTextureRectProgram; LLGLSLShader gReflectionMipProgram; LLGLSLShader gRadianceGenProgram; +LLGLSLShader gIrradianceGenProgram; LLGLSLShader gGlowCombineFXAAProgram; LLGLSLShader gTwoTextureAddProgram; LLGLSLShader gTwoTextureCompareProgram; @@ -764,6 +765,7 @@ void LLViewerShaderMgr::unloadShaders() gSplatTextureRectProgram.unload(); gReflectionMipProgram.unload(); gRadianceGenProgram.unload(); + gIrradianceGenProgram.unload(); gGlowCombineFXAAProgram.unload(); gTwoTextureAddProgram.unload(); gTwoTextureCompareProgram.unload(); @@ -3833,6 +3835,16 @@ BOOL LLViewerShaderMgr::loadShadersInterface() success = gRadianceGenProgram.createShader(NULL, NULL); } + if (success) + { + gIrradianceGenProgram.mName = "Irradiance Gen Shader"; + gIrradianceGenProgram.mShaderFiles.clear(); + gIrradianceGenProgram.mShaderFiles.push_back(make_pair("interface/irradianceGenV.glsl", GL_VERTEX_SHADER_ARB)); + gIrradianceGenProgram.mShaderFiles.push_back(make_pair("interface/irradianceGenF.glsl", GL_FRAGMENT_SHADER_ARB)); + gIrradianceGenProgram.mShaderLevel = mShaderLevel[SHADER_INTERFACE]; + success = gIrradianceGenProgram.createShader(NULL, NULL); + } + if( !success ) { mShaderLevel[SHADER_INTERFACE] = 0; diff --git a/indra/newview/llviewershadermgr.h b/indra/newview/llviewershadermgr.h index fa5b2121b9..87d90b49a9 100644 --- a/indra/newview/llviewershadermgr.h +++ b/indra/newview/llviewershadermgr.h @@ -163,6 +163,7 @@ extern LLGLSLShader gGlowCombineProgram; extern LLGLSLShader gSplatTextureRectProgram; extern LLGLSLShader gReflectionMipProgram; extern LLGLSLShader gRadianceGenProgram; +extern LLGLSLShader gIrradianceGenProgram; extern LLGLSLShader gGlowCombineFXAAProgram; extern LLGLSLShader gDebugProgram; extern LLGLSLShader gClipProgram; diff --git a/indra/newview/pipeline.cpp b/indra/newview/pipeline.cpp index 028a0db95c..06c9d3c136 100644 --- a/indra/newview/pipeline.cpp +++ b/indra/newview/pipeline.cpp @@ -9205,10 +9205,22 @@ void LLPipeline::unbindDeferredShader(LLGLSLShader &shader) void LLPipeline::bindReflectionProbes(LLGLSLShader& shader) { S32 channel = shader.enableTexture(LLShaderMgr::REFLECTION_PROBES, LLTexUnit::TT_CUBE_MAP_ARRAY); + bool bound = false; if (channel > -1 && mReflectionMapManager.mTexture.notNull()) { - // see comments in class2/deferred/softenLightF.glsl for what these uniforms mean mReflectionMapManager.mTexture->bind(channel); + bound = true; + } + + channel = shader.enableTexture(LLShaderMgr::IRRADIANCE_PROBES, LLTexUnit::TT_CUBE_MAP_ARRAY); + if (channel > -1 && mReflectionMapManager.mIrradianceMaps.notNull()) + { + mReflectionMapManager.mIrradianceMaps->bind(channel); + bound = true; + } + + if (bound) + { mReflectionMapManager.setUniforms(); F32* m = gGLModelView; -- cgit v1.2.3 From 6540b4c480d1d4b4c8342a0d093d09f525485659 Mon Sep 17 00:00:00 2001 From: Dave Parks Date: Wed, 22 Jun 2022 19:56:26 -0500 Subject: SL-17600 Cubemap filter tuning. --- .../shaders/class1/interface/irradianceGenF.glsl | 9 ++-- .../shaders/class1/interface/radianceGenF.glsl | 6 ++- indra/newview/llreflectionmapmanager.cpp | 54 ++++++++++++---------- 3 files changed, 39 insertions(+), 30 deletions(-) diff --git a/indra/newview/app_settings/shaders/class1/interface/irradianceGenF.glsl b/indra/newview/app_settings/shaders/class1/interface/irradianceGenF.glsl index 2028509775..4d91395a1b 100644 --- a/indra/newview/app_settings/shaders/class1/interface/irradianceGenF.glsl +++ b/indra/newview/app_settings/shaders/class1/interface/irradianceGenF.glsl @@ -70,11 +70,12 @@ SOFTWARE. #define PI 3.1415926535897932384626433832795 -float deltaPhi = PI/16.0; -float deltaTheta = deltaPhi*0.25; - void main() { + float deltaPhi = (2.0 * PI) / 11.25; + float deltaTheta = (0.5 * PI) / 4.0; + float mipLevel = 2; + vec3 N = normalize(vary_dir); vec3 up = vec3(0.0, 1.0, 0.0); vec3 right = normalize(cross(up, N)); @@ -89,7 +90,7 @@ void main() for (float theta = 0.0; theta < HALF_PI; theta += deltaTheta) { vec3 tempVec = cos(phi) * right + sin(phi) * up; vec3 sampleVector = cos(theta) * N + sin(theta) * tempVec; - color += textureLod(reflectionProbes, vec4(sampleVector, sourceIdx), 3).rgb * cos(theta) * sin(theta); + color += textureLod(reflectionProbes, vec4(sampleVector, sourceIdx), mipLevel).rgb * cos(theta) * sin(theta); sampleCount++; } } diff --git a/indra/newview/app_settings/shaders/class1/interface/radianceGenF.glsl b/indra/newview/app_settings/shaders/class1/interface/radianceGenF.glsl index 3fc227eae7..94fedce243 100644 --- a/indra/newview/app_settings/shaders/class1/interface/radianceGenF.glsl +++ b/indra/newview/app_settings/shaders/class1/interface/radianceGenF.glsl @@ -68,7 +68,7 @@ SOFTWARE. uniform float roughness; -uniform int numSamples; +uniform float mipLevel; const float PI = 3.1415926536; @@ -130,6 +130,8 @@ vec3 prefilterEnvMap(vec3 R, float roughness) vec3 color = vec3(0.0); float totalWeight = 0.0; float envMapDim = 256.0; + int numSamples = 32/max(int(mipLevel), 1); + for(uint i = 0u; i < numSamples; i++) { vec2 Xi = hammersley2d(i, numSamples); vec3 H = importanceSample_GGX(Xi, roughness, N); @@ -148,7 +150,7 @@ vec3 prefilterEnvMap(vec3 R, float roughness) // Solid angle of 1 pixel across all cube faces float omegaP = 4.0 * PI / (6.0 * envMapDim * envMapDim); // Biased (+1.0) mip level for better result - float mipLevel = roughness == 0.0 ? 0.0 : max(0.5 * log2(omegaS / omegaP) + 1.0, 0.0f); + //float mipLevel = roughness == 0.0 ? 0.0 : max(0.5 * log2(omegaS / omegaP) + 1.0, 0.0f); color += textureLod(reflectionProbes, vec4(L,sourceIdx), mipLevel).rgb * dotNL; totalWeight += dotNL; diff --git a/indra/newview/llreflectionmapmanager.cpp b/indra/newview/llreflectionmapmanager.cpp index dfd0d1b9a9..bde8c0c51c 100644 --- a/indra/newview/llreflectionmapmanager.cpp +++ b/indra/newview/llreflectionmapmanager.cpp @@ -425,7 +425,8 @@ void LLReflectionMapManager::updateProbeFace(LLReflectionMap* probe, U32 face) S32 mips = log2((F32)LL_REFLECTION_PROBE_RESOLUTION) + 0.5f; - for (int i = 0; i < mMipChain.size(); ++i) + //for (int i = 0; i < mMipChain.size(); ++i) + for (int i = 0; i < 1; ++i) { LL_PROFILE_GPU_ZONE("probe mip"); mMipChain[i].bindTarget(); @@ -464,6 +465,7 @@ void LLReflectionMapManager::updateProbeFace(LLReflectionMap* probe, U32 face) mTexture->bind(0); //glCopyTexSubImage3D(GL_TEXTURE_CUBE_MAP_ARRAY, mip, 0, 0, probe->mCubeIndex * 6 + face, 0, 0, res, res); glCopyTexSubImage3D(GL_TEXTURE_CUBE_MAP_ARRAY, mip, 0, 0, targetIdx * 6 + face, 0, 0, res, res); + glCopyTexSubImage3D(GL_TEXTURE_CUBE_MAP_ARRAY, mip, 0, 0, probe->mCubeIndex * 6 + face, 0, 0, res, res); mTexture->unbind(); } mMipChain[i].flush(); @@ -485,24 +487,28 @@ void LLReflectionMapManager::updateProbeFace(LLReflectionMap* probe, U32 face) static LLStaticHashedString sSourceIdx("sourceIdx"); gRadianceGenProgram.uniform1i(sSourceIdx, targetIdx); - for (int cf = 0; cf < 6; ++cf) - { // for each cube face - LLCoordFrame frame; - frame.lookAt(LLVector3(0, 0, 0), LLCubeMapArray::sClipToCubeLookVecs[cf], LLCubeMapArray::sClipToCubeUpVecs[cf]); + static LLStaticHashedString sMipLevel("mipLevel"); - F32 mat[16]; - frame.getOpenGLRotation(mat); - gGL.loadMatrix(mat); + for (int i = 1; i < mMipChain.size(); ++i) + { + for (int cf = 0; cf < 6; ++cf) + { // for each cube face + LLCoordFrame frame; + frame.lookAt(LLVector3(0, 0, 0), LLCubeMapArray::sClipToCubeLookVecs[cf], LLCubeMapArray::sClipToCubeUpVecs[cf]); + + F32 mat[16]; + frame.getOpenGLRotation(mat); + gGL.loadMatrix(mat); - for (int i = 0; i < mMipChain.size(); ++i) - { mMipChain[i].bindTarget(); static LLStaticHashedString sRoughness("roughness"); - static LLStaticHashedString sNumSamples("numSamples"); - gRadianceGenProgram.uniform1i(sNumSamples, 32); gRadianceGenProgram.uniform1f(sRoughness, (F32)i / (F32)(mMipChain.size() - 1)); - + gRadianceGenProgram.uniform1f(sMipLevel, llmax((F32)(i - 1), 0.f)); + if (i > 0) + { + gRadianceGenProgram.uniform1i(sSourceIdx, probe->mCubeIndex); + } gGL.begin(gGL.QUADS); gGL.vertex3f(-1, -1, -1); gGL.vertex3f(1, -1, -1); @@ -523,7 +529,7 @@ void LLReflectionMapManager::updateProbeFace(LLReflectionMap* probe, U32 face) channel = gIrradianceGenProgram.enableTexture(LLShaderMgr::REFLECTION_PROBES, LLTexUnit::TT_CUBE_MAP_ARRAY); mTexture->bind(channel); - gIrradianceGenProgram.uniform1i(sSourceIdx, targetIdx); + gIrradianceGenProgram.uniform1i(sSourceIdx, probe->mCubeIndex); int start_mip = 0; // find the mip target to start with based on irradiance map resolution @@ -535,17 +541,17 @@ void LLReflectionMapManager::updateProbeFace(LLReflectionMap* probe, U32 face) } } - for (int cf = 0; cf < 6; ++cf) - { // for each cube face - LLCoordFrame frame; - frame.lookAt(LLVector3(0, 0, 0), LLCubeMapArray::sClipToCubeLookVecs[cf], LLCubeMapArray::sClipToCubeUpVecs[cf]); + for (int i = start_mip; i < mMipChain.size(); ++i) + { + for (int cf = 0; cf < 6; ++cf) + { // for each cube face + LLCoordFrame frame; + frame.lookAt(LLVector3(0, 0, 0), LLCubeMapArray::sClipToCubeLookVecs[cf], LLCubeMapArray::sClipToCubeUpVecs[cf]); - F32 mat[16]; - frame.getOpenGLRotation(mat); - gGL.loadMatrix(mat); + F32 mat[16]; + frame.getOpenGLRotation(mat); + gGL.loadMatrix(mat); - for (int i = start_mip; i < mMipChain.size(); ++i) - { mMipChain[i].bindTarget(); gGL.begin(gGL.QUADS); @@ -558,7 +564,7 @@ void LLReflectionMapManager::updateProbeFace(LLReflectionMap* probe, U32 face) S32 res = mMipChain[i].getWidth(); mIrradianceMaps->bind(channel); - glCopyTexSubImage3D(GL_TEXTURE_CUBE_MAP_ARRAY, i-start_mip, 0, 0, probe->mCubeIndex * 6 + cf, 0, 0, res, res); + glCopyTexSubImage3D(GL_TEXTURE_CUBE_MAP_ARRAY, i - start_mip, 0, 0, probe->mCubeIndex * 6 + cf, 0, 0, res, res); mTexture->bind(channel); mMipChain[i].flush(); } -- cgit v1.2.3