From 3305fbe1cf5fe3faa6dc5479aa29e6c891ee943f Mon Sep 17 00:00:00 2001 From: RunitaiLinden Date: Wed, 14 Jun 2023 17:26:30 -0500 Subject: SL-19838 Fix for transparent PBR materials always casting shadows. --- .../class1/deferred/pbrShadowAlphaBlendF.glsl | 56 ++++++++++++++++++++++ .../class1/deferred/pbrShadowAlphaMaskF.glsl | 2 +- indra/newview/llviewershadermgr.cpp | 16 ++++++- indra/newview/llviewershadermgr.h | 1 + indra/newview/pipeline.cpp | 4 +- 5 files changed, 75 insertions(+), 4 deletions(-) create mode 100644 indra/newview/app_settings/shaders/class1/deferred/pbrShadowAlphaBlendF.glsl (limited to 'indra') diff --git a/indra/newview/app_settings/shaders/class1/deferred/pbrShadowAlphaBlendF.glsl b/indra/newview/app_settings/shaders/class1/deferred/pbrShadowAlphaBlendF.glsl new file mode 100644 index 0000000000..79425ad716 --- /dev/null +++ b/indra/newview/app_settings/shaders/class1/deferred/pbrShadowAlphaBlendF.glsl @@ -0,0 +1,56 @@ +/** + * @file pbrShadowAlphaBlendF.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 + * $/LicenseInfo$ + */ + +out vec4 frag_color; + +uniform sampler2D diffuseMap; + +in vec4 post_pos; +in float target_pos_x; +in vec4 vertex_color; +in vec2 vary_texcoord0; +uniform float minimum_alpha; + +void main() +{ + float alpha = texture(diffuseMap,vary_texcoord0.xy).a; + + alpha *= vertex_color.a; + + if (alpha < 0.05) // treat as totally transparent + { + discard; + } + + if (alpha < 0.88) // treat as semi-transparent + { + if (fract(0.5*floor(target_pos_x / post_pos.w )) < 0.25) + { + discard; + } + } + + frag_color = vec4(1,1,1,1); +} diff --git a/indra/newview/app_settings/shaders/class1/deferred/pbrShadowAlphaMaskF.glsl b/indra/newview/app_settings/shaders/class1/deferred/pbrShadowAlphaMaskF.glsl index e06f3a5f44..1d1545be7e 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/pbrShadowAlphaMaskF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/pbrShadowAlphaMaskF.glsl @@ -35,7 +35,7 @@ uniform float minimum_alpha; void main() { - float alpha = diffuseLookup(vary_texcoord0.xy).a; + float alpha = texture(diffuseMap,vary_texcoord0.xy).a; if (alpha < minimum_alpha) { diff --git a/indra/newview/llviewershadermgr.cpp b/indra/newview/llviewershadermgr.cpp index 5ec78df6c4..5eae1dfb18 100644 --- a/indra/newview/llviewershadermgr.cpp +++ b/indra/newview/llviewershadermgr.cpp @@ -158,6 +158,8 @@ LLGLSLShader gDeferredShadowAlphaMaskProgram; LLGLSLShader gDeferredSkinnedShadowAlphaMaskProgram; LLGLSLShader gDeferredShadowGLTFAlphaMaskProgram; LLGLSLShader gDeferredSkinnedShadowGLTFAlphaMaskProgram; +LLGLSLShader gDeferredShadowGLTFAlphaBlendProgram; +LLGLSLShader gDeferredSkinnedShadowGLTFAlphaBlendProgram; LLGLSLShader gDeferredShadowFullbrightAlphaMaskProgram; LLGLSLShader gDeferredSkinnedShadowFullbrightAlphaMaskProgram; LLGLSLShader gDeferredAvatarShadowProgram; @@ -2364,7 +2366,6 @@ BOOL LLViewerShaderMgr::loadShadersDeferred() if (success) { gDeferredShadowGLTFAlphaMaskProgram.mName = "Deferred GLTF Shadow Alpha Mask Shader"; - gDeferredShadowGLTFAlphaMaskProgram.mFeatures.mIndexedTextureChannels = LLGLSLShader::sIndexedTextureChannels; gDeferredShadowGLTFAlphaMaskProgram.mShaderFiles.clear(); gDeferredShadowGLTFAlphaMaskProgram.mShaderFiles.push_back(make_pair("deferred/pbrShadowAlphaMaskV.glsl", GL_VERTEX_SHADER)); gDeferredShadowGLTFAlphaMaskProgram.mShaderFiles.push_back(make_pair("deferred/pbrShadowAlphaMaskF.glsl", GL_FRAGMENT_SHADER)); @@ -2375,6 +2376,19 @@ BOOL LLViewerShaderMgr::loadShadersDeferred() llassert(success); } + if (success) + { + gDeferredShadowGLTFAlphaBlendProgram.mName = "Deferred GLTF Shadow Alpha Blend Shader"; + gDeferredShadowGLTFAlphaBlendProgram.mShaderFiles.clear(); + gDeferredShadowGLTFAlphaBlendProgram.mShaderFiles.push_back(make_pair("deferred/pbrShadowAlphaMaskV.glsl", GL_VERTEX_SHADER)); + gDeferredShadowGLTFAlphaBlendProgram.mShaderFiles.push_back(make_pair("deferred/pbrShadowAlphaBlendF.glsl", GL_FRAGMENT_SHADER)); + gDeferredShadowGLTFAlphaBlendProgram.mShaderLevel = mShaderLevel[SHADER_DEFERRED]; + gDeferredShadowGLTFAlphaBlendProgram.clearPermutations(); + success = make_rigged_variant(gDeferredShadowGLTFAlphaBlendProgram, gDeferredSkinnedShadowGLTFAlphaBlendProgram); + success = success && gDeferredShadowGLTFAlphaBlendProgram.createShader(NULL, NULL); + llassert(success); + } + if (success) { gDeferredAvatarShadowProgram.mName = "Deferred Avatar Shadow Shader"; diff --git a/indra/newview/llviewershadermgr.h b/indra/newview/llviewershadermgr.h index 76e81e17b7..b0b9719d76 100644 --- a/indra/newview/llviewershadermgr.h +++ b/indra/newview/llviewershadermgr.h @@ -227,6 +227,7 @@ extern LLGLSLShader gDeferredShadowProgram; extern LLGLSLShader gDeferredShadowCubeProgram; extern LLGLSLShader gDeferredShadowAlphaMaskProgram; extern LLGLSLShader gDeferredShadowGLTFAlphaMaskProgram; +extern LLGLSLShader gDeferredShadowGLTFAlphaBlendProgram; extern LLGLSLShader gDeferredShadowFullbrightAlphaMaskProgram; extern LLGLSLShader gDeferredPostProgram; extern LLGLSLShader gDeferredCoFProgram; diff --git a/indra/newview/pipeline.cpp b/indra/newview/pipeline.cpp index a41bed9186..c88b8b42ff 100644 --- a/indra/newview/pipeline.cpp +++ b/indra/newview/pipeline.cpp @@ -6514,7 +6514,7 @@ void LLPipeline::renderAlphaObjects(bool rigged) { if (pparams->mGLTFMaterial) { - gDeferredShadowGLTFAlphaMaskProgram.bind(rigged); + gDeferredShadowGLTFAlphaBlendProgram.bind(rigged); LLGLSLShader::sCurBoundShaderPtr->uniform1i(LLShaderMgr::SUN_UP_FACTOR, sun_up); LLGLSLShader::sCurBoundShaderPtr->uniform1f(LLShaderMgr::DEFERRED_SHADOW_TARGET_WIDTH, (float)target_width); LLGLSLShader::sCurBoundShaderPtr->setMinimumAlpha(ALPHA_BLEND_CUTOFF); @@ -6540,7 +6540,7 @@ void LLPipeline::renderAlphaObjects(bool rigged) { if (pparams->mGLTFMaterial) { - gDeferredShadowGLTFAlphaMaskProgram.bind(rigged); + gDeferredShadowGLTFAlphaBlendProgram.bind(rigged); LLGLSLShader::sCurBoundShaderPtr->uniform1i(LLShaderMgr::SUN_UP_FACTOR, sun_up); LLGLSLShader::sCurBoundShaderPtr->uniform1f(LLShaderMgr::DEFERRED_SHADOW_TARGET_WIDTH, (float)target_width); LLGLSLShader::sCurBoundShaderPtr->setMinimumAlpha(ALPHA_BLEND_CUTOFF); -- cgit v1.2.3