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Diffstat (limited to 'indra/newview/llgltfmaterialpreviewmgr.cpp')
| -rw-r--r-- | indra/newview/llgltfmaterialpreviewmgr.cpp | 555 |
1 files changed, 555 insertions, 0 deletions
diff --git a/indra/newview/llgltfmaterialpreviewmgr.cpp b/indra/newview/llgltfmaterialpreviewmgr.cpp new file mode 100644 index 0000000000..a8ea3429f4 --- /dev/null +++ b/indra/newview/llgltfmaterialpreviewmgr.cpp @@ -0,0 +1,555 @@ +/** + * @file llgltfmaterialpreviewmgr.cpp + * + * $LicenseInfo:firstyear=2023&license=viewerlgpl$ + * 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 + * $/LicenseInfo$ + */ + +#include "llviewerprecompiledheaders.h" + +#include "llgltfmaterialpreviewmgr.h" + +#include <memory> +#include <vector> + +#include "llavatarappearancedefines.h" +#include "llenvironment.h" +#include "llselectmgr.h" +#include "llviewercamera.h" +#include "llviewerobject.h" +#include "llviewershadermgr.h" +#include "llviewertexturelist.h" +#include "llviewerwindow.h" +#include "llvolumemgr.h" +#include "pipeline.h" + +LLGLTFMaterialPreviewMgr gGLTFMaterialPreviewMgr; + +namespace +{ + constexpr S32 FULLY_LOADED = 0; + constexpr S32 NOT_LOADED = 99; +}; + +LLGLTFPreviewTexture::MaterialLoadLevels::MaterialLoadLevels() +{ + for (U32 i = 0; i < LLGLTFMaterial::GLTF_TEXTURE_INFO_COUNT; ++i) + { + levels[i] = NOT_LOADED; + } +} + +S32& LLGLTFPreviewTexture::MaterialLoadLevels::operator[](size_t i) +{ + llassert(i >= 0 && i < LLGLTFMaterial::GLTF_TEXTURE_INFO_COUNT); + return levels[i]; +} + +const S32& LLGLTFPreviewTexture::MaterialLoadLevels::operator[](size_t i) const +{ + llassert(i >= 0 && i < LLGLTFMaterial::GLTF_TEXTURE_INFO_COUNT); + return levels[i]; +} + +bool LLGLTFPreviewTexture::MaterialLoadLevels::operator<(const MaterialLoadLevels& other) const +{ + bool less = false; + for (U32 i = 0; i < LLGLTFMaterial::GLTF_TEXTURE_INFO_COUNT; ++i) + { + if (((*this)[i] > other[i])) { return false; } + less = less || ((*this)[i] < other[i]); + } + return less; +} + +bool LLGLTFPreviewTexture::MaterialLoadLevels::operator>(const MaterialLoadLevels& other) const +{ + bool great = false; + for (U32 i = 0; i < LLGLTFMaterial::GLTF_TEXTURE_INFO_COUNT; ++i) + { + if (((*this)[i] < other[i])) { return false; } + great = great || ((*this)[i] > other[i]); + } + return great; +} + +namespace +{ + void fetch_texture_for_ui(LLPointer<LLViewerFetchedTexture>& img, const LLUUID& id) + { + if (id.notNull()) + { + if (LLAvatarAppearanceDefines::LLAvatarAppearanceDictionary::isBakedImageId(id)) + { + LLViewerObject* obj = LLSelectMgr::getInstance()->getSelection()->getFirstObject(); + if (obj) + { + LLViewerTexture* viewerTexture = obj->getBakedTextureForMagicId(id); + img = viewerTexture ? dynamic_cast<LLViewerFetchedTexture*>(viewerTexture) : NULL; + } + } + else + { + img = LLViewerTextureManager::getFetchedTexture(id, FTT_DEFAULT, TRUE, LLGLTexture::BOOST_NONE, LLViewerTexture::LOD_TEXTURE); + } + } + if (img) + { + img->setBoostLevel(LLGLTexture::BOOST_PREVIEW); + img->forceToSaveRawImage(0); + } + }; + + // *NOTE: Does not use the same conventions as texture discard level. Lower is better. + S32 get_texture_load_level(const LLPointer<LLViewerFetchedTexture>& texture) + { + if (!texture) { return FULLY_LOADED; } + const S32 raw_level = texture->getDiscardLevel(); + if (raw_level < 0) { return NOT_LOADED; } + return raw_level; + } + + LLGLTFPreviewTexture::MaterialLoadLevels get_material_load_levels(LLFetchedGLTFMaterial& material) + { + using MaterialTextures = LLPointer<LLViewerFetchedTexture>*[LLGLTFMaterial::GLTF_TEXTURE_INFO_COUNT]; + + MaterialTextures textures; + + textures[LLGLTFMaterial::GLTF_TEXTURE_INFO_BASE_COLOR] = &material.mBaseColorTexture; + textures[LLGLTFMaterial::GLTF_TEXTURE_INFO_NORMAL] = &material.mNormalTexture; + textures[LLGLTFMaterial::GLTF_TEXTURE_INFO_METALLIC_ROUGHNESS] = &material.mMetallicRoughnessTexture; + textures[LLGLTFMaterial::GLTF_TEXTURE_INFO_EMISSIVE] = &material.mEmissiveTexture; + + LLGLTFPreviewTexture::MaterialLoadLevels levels; + + for (U32 i = 0; i < LLGLTFMaterial::GLTF_TEXTURE_INFO_COUNT; ++i) + { + fetch_texture_for_ui(*textures[i], material.mTextureId[i]); + levels[i] = get_texture_load_level(*textures[i]); + } + + return levels; + } + + // Is the material loaded enough to start rendering a preview? + bool is_material_loaded_enough_for_ui(LLFetchedGLTFMaterial& material) + { + if (material.isFetching()) + { + return false; + } + + LLGLTFPreviewTexture::MaterialLoadLevels levels = get_material_load_levels(material); + + for (U32 i = 0; i < LLGLTFMaterial::GLTF_TEXTURE_INFO_COUNT; ++i) + { + if (levels[i] == NOT_LOADED) + { + return false; + } + } + + return true; + } + +}; // namespace + +LLGLTFPreviewTexture::LLGLTFPreviewTexture(LLPointer<LLFetchedGLTFMaterial> material, S32 width) + : LLViewerDynamicTexture(width, width, 4, EOrder::ORDER_MIDDLE, FALSE) + , mGLTFMaterial(material) +{ +} + +// static +LLPointer<LLGLTFPreviewTexture> LLGLTFPreviewTexture::create(LLPointer<LLFetchedGLTFMaterial> material) +{ + return new LLGLTFPreviewTexture(material, LLPipeline::MAX_BAKE_WIDTH); +} + +void LLGLTFPreviewTexture::preRender(BOOL clear_depth) +{ + LL_PROFILE_ZONE_SCOPED_CATEGORY_UI; + + MaterialLoadLevels current_load = get_material_load_levels(*mGLTFMaterial.get()); + if (current_load < mBestLoad) + { + mShouldRender = true; + mBestLoad = current_load; + } + + if (!mShouldRender) { return; } + + LLViewerDynamicTexture::preRender(clear_depth); +} + + +namespace { + +struct GLTFPreviewModel +{ + GLTFPreviewModel(LLPointer<LLDrawInfo>& info, const LLMatrix4& mat) + : mDrawInfo(info) + , mModelMatrix(mat) + { + mDrawInfo->mModelMatrix = &mModelMatrix; + } + GLTFPreviewModel(GLTFPreviewModel&) = delete; + ~GLTFPreviewModel() + { + // No model matrix necromancy + llassert(gGLLastMatrix != &mModelMatrix); + gGLLastMatrix = nullptr; + } + LLPointer<LLDrawInfo> mDrawInfo; + LLMatrix4 mModelMatrix; // Referenced by mDrawInfo +}; + +using PreviewSpherePart = std::unique_ptr<GLTFPreviewModel>; +using PreviewSphere = std::vector<PreviewSpherePart>; + +// Like LLVolumeGeometryManager::registerFace but without batching or too-many-indices/vertices checking. +PreviewSphere create_preview_sphere(LLPointer<LLFetchedGLTFMaterial>& material, const LLMatrix4& model_matrix) +{ + LL_PROFILE_ZONE_SCOPED_CATEGORY_UI; + + const LLColor4U vertex_color(material->mBaseColor); + + LLPrimitive prim; + prim.init_primitive(LL_PCODE_VOLUME); + LLVolumeParams params; + params.setType(LL_PCODE_PROFILE_CIRCLE_HALF, LL_PCODE_PATH_CIRCLE); + params.setBeginAndEndS(0.f, 1.f); + params.setBeginAndEndT(0.f, 1.f); + params.setRatio(1, 1); + params.setShear(0, 0); + constexpr auto MAX_LOD = LLVolumeLODGroup::NUM_LODS - 1; + prim.setVolume(params, MAX_LOD); + + LLVolume* volume = prim.getVolume(); + llassert(volume); + for (LLVolumeFace& face : volume->getVolumeFaces()) + { + face.createTangents(); + } + + PreviewSphere preview_sphere; + preview_sphere.reserve(volume->getNumFaces()); + + LLPointer<LLVertexBuffer> buf = new LLVertexBuffer( + LLVertexBuffer::MAP_VERTEX | + LLVertexBuffer::MAP_NORMAL | + LLVertexBuffer::MAP_TEXCOORD0 | + LLVertexBuffer::MAP_COLOR | + LLVertexBuffer::MAP_TANGENT + ); + U32 nv = 0; + U32 ni = 0; + for (LLVolumeFace& face : volume->getVolumeFaces()) + { + nv += face.mNumVertices; + ni += face.mNumIndices; + } + buf->allocateBuffer(nv, ni); + + // UV hacks + // Higher factor helps to see more details on the preview sphere + const LLVector2 uv_factor(2.0f, 2.0f); + // Offset places center of material in center of view + const LLVector2 uv_offset(-0.5f, -0.5f); + + LLStrider<U16> indices; + LLStrider<LLVector4a> positions; + LLStrider<LLVector4a> normals; + LLStrider<LLVector2> texcoords; + LLStrider<LLColor4U> colors; + LLStrider<LLVector4a> tangents; + buf->getIndexStrider(indices); + buf->getVertexStrider(positions); + buf->getNormalStrider(normals); + buf->getTexCoord0Strider(texcoords); + buf->getColorStrider(colors); + buf->getTangentStrider(tangents); + U32 index_offset = 0; + U32 vertex_offset = 0; + for (const LLVolumeFace& face : volume->getVolumeFaces()) + { + for (S32 i = 0; i < face.mNumIndices; ++i) + { + *indices++ = face.mIndices[i] + vertex_offset; + } + for (S32 v = 0; v < face.mNumVertices; ++v) + { + *positions++ = face.mPositions[v]; + *normals++ = face.mNormals[v]; + LLVector2 uv(face.mTexCoords[v]); + uv.scaleVec(uv_factor); + uv += uv_offset; + *texcoords++ = uv; + *colors++ = vertex_color; + *tangents++ = face.mTangents[v]; + } + + constexpr LLViewerTexture* no_media = nullptr; + LLPointer<LLDrawInfo> info = new LLDrawInfo(U16(vertex_offset), U16(vertex_offset + face.mNumVertices - 1), face.mNumIndices, index_offset, no_media, buf.get()); + info->mGLTFMaterial = material; + preview_sphere.emplace_back(std::make_unique<GLTFPreviewModel>(info, model_matrix)); + index_offset += face.mNumIndices; + vertex_offset += face.mNumVertices; + } + + buf->unmapBuffer(); + + return preview_sphere; +} + +void set_preview_sphere_material(PreviewSphere& preview_sphere, LLPointer<LLFetchedGLTFMaterial>& material) +{ + llassert(!preview_sphere.empty()); + if (preview_sphere.empty()) { return; } + + const LLColor4U vertex_color(material->mBaseColor); + + // See comments about unmapBuffer in llvertexbuffer.h + for (PreviewSpherePart& part : preview_sphere) + { + LLDrawInfo* info = part->mDrawInfo.get(); + info->mGLTFMaterial = material; + LLVertexBuffer* buf = info->mVertexBuffer.get(); + LLStrider<LLColor4U> colors; + const S32 count = info->mEnd - info->mStart; + buf->getColorStrider(colors, info->mStart, count); + for (S32 i = 0; i < count; ++i) + { + *colors++ = vertex_color; + } + buf->unmapBuffer(); + } +} + +PreviewSphere& get_preview_sphere(LLPointer<LLFetchedGLTFMaterial>& material, const LLMatrix4& model_matrix) +{ + static PreviewSphere preview_sphere; + if (preview_sphere.empty()) + { + preview_sphere = create_preview_sphere(material, model_matrix); + } + else + { + set_preview_sphere_material(preview_sphere, material); + } + return preview_sphere; +} + +// Final, direct modifications to shader constants, just before render +void fixup_shader_constants(LLGLSLShader& shader) +{ + // Sunlight intensity of 0 no matter what + shader.uniform1i(LLShaderMgr::SUN_UP_FACTOR, 1); + shader.uniform3fv(LLShaderMgr::SUNLIGHT_COLOR, 1, LLColor3::white.mV); + shader.uniform1f(LLShaderMgr::DENSITY_MULTIPLIER, 0.0f); + + // Ignore sun shadow (if enabled) + for (U32 i = 0; i < 6; i++) + { + const S32 channel = shader.getTextureChannel(LLShaderMgr::DEFERRED_SHADOW0+i); + if (channel != -1) + { + gGL.getTexUnit(channel)->bind(LLViewerFetchedTexture::sWhiteImagep, TRUE); + } + } +} + +// Set a variable to a value temporarily, and restor the variable's old value +// when this object leaves scope. +template<typename T> +struct SetTemporarily +{ + T* mRef; + T mOldVal; + SetTemporarily(T* var, T temp_val) + { + mRef = var; + mOldVal = *mRef; + *mRef = temp_val; + } + ~SetTemporarily() + { + *mRef = mOldVal; + } +}; + +}; // namespace + +BOOL LLGLTFPreviewTexture::render() +{ + LL_PROFILE_ZONE_SCOPED_CATEGORY_UI; + + if (!mShouldRender) { return FALSE; } + + glClearColor(0, 0, 0, 0); + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + + LLGLDepthTest(GL_FALSE); + LLGLDisable stencil(GL_STENCIL_TEST); + LLGLDisable scissor(GL_SCISSOR_TEST); + SetTemporarily<bool> no_dof(&LLPipeline::RenderDepthOfField, false); + SetTemporarily<bool> no_glow(&LLPipeline::sRenderGlow, false); + SetTemporarily<bool> no_ssr(&LLPipeline::RenderScreenSpaceReflections, false); + SetTemporarily<U32> no_fxaa(&LLPipeline::RenderFSAASamples, U32(0)); + SetTemporarily<LLPipeline::RenderTargetPack*> use_auxiliary_render_target(&gPipeline.mRT, &gPipeline.mAuxillaryRT); + + LLVector3 light_dir3(1.0f, 1.0f, 1.0f); + light_dir3.normalize(); + const LLVector4 light_dir = LLVector4(light_dir3, 0); + SetTemporarily<S32> sun_light_only(&LLPipeline::RenderLocalLightCount, 0); + + gPipeline.mReflectionMapManager.forceDefaultProbeAndUpdateUniforms(); + + LLViewerCamera camera; + + // Calculate the object distance at which the object of a given radius will + // span the partial width of the screen given by fill_ratio. + // Assume the primitive has a scale of 1 (this is the default). + constexpr F32 fill_ratio = 0.8f; + constexpr F32 object_radius = 0.5f; + const F32 object_distance = (object_radius / fill_ratio) * tan(camera.getDefaultFOV()); + // Negative coordinate shows the textures on the sphere right-side up, when + // combined with the UV hacks in create_preview_sphere + const LLVector3 object_position(0.0, -object_distance, 0.0); + LLMatrix4 object_transform; + object_transform.translate(object_position); + + // Set up camera and viewport + const LLVector3 origin(0.0, 0.0, 0.0); + camera.lookAt(origin, object_position); + camera.setAspect(mFullHeight / mFullWidth); + const LLRect texture_rect(0, mFullHeight, mFullWidth, 0); + camera.setPerspective(NOT_FOR_SELECTION, texture_rect.mLeft, texture_rect.mBottom, texture_rect.getWidth(), texture_rect.getHeight(), FALSE, camera.getNear(), MAX_FAR_CLIP*2.f); + + // Generate sphere object on-the-fly. Discard afterwards. (Vertex buffer is + // discarded, but the sphere should be cached in LLVolumeMgr.) + PreviewSphere& preview_sphere = get_preview_sphere(mGLTFMaterial, object_transform); + + gPipeline.setupHWLights(); + glh::matrix4f mat = copy_matrix(gGLModelView); + glh::vec4f transformed_light_dir(light_dir.mV); + mat.mult_matrix_vec(transformed_light_dir); + SetTemporarily<LLVector4> force_sun_direction_high_graphics(&gPipeline.mTransformedSunDir, LLVector4(transformed_light_dir.v)); + // Override lights to ensure the sun is always shining from a certain direction (low graphics) + // See also force_sun_direction_high_graphics and fixup_shader_constants + { + LLLightState* light = gGL.getLight(0); + light->setPosition(light_dir); + constexpr bool sun_up = true; + light->setSunPrimary(sun_up); + } + + LLRenderTarget& screen = gPipeline.mAuxillaryRT.screen; + + // *HACK: Force reset of the model matrix + gGLLastMatrix = nullptr; + +#if 0 + if (mGLTFMaterial->mAlphaMode == LLGLTFMaterial::ALPHA_MODE_OPAQUE || mGLTFMaterial->mAlphaMode == LLGLTFMaterial::ALPHA_MODE_MASK) + { + // *TODO: Opaque/alpha mask rendering + } + else +#endif + { + // Alpha blend rendering + + screen.bindTarget(); + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + + LLGLSLShader& shader = gDeferredPBRAlphaProgram; + + gPipeline.bindDeferredShader(shader); + fixup_shader_constants(shader); + + for (PreviewSpherePart& part : preview_sphere) + { + LLRenderPass::pushGLTFBatch(*part->mDrawInfo); + } + + gPipeline.unbindDeferredShader(shader); + + screen.flush(); + } + + gPipeline.copyScreenSpaceReflections(&screen, &gPipeline.mSceneMap); + gPipeline.generateLuminance(&screen, &gPipeline.mLuminanceMap); + gPipeline.generateExposure(&gPipeline.mLuminanceMap, &gPipeline.mExposureMap); + gPipeline.gammaCorrect(&screen, &gPipeline.mPostMap); + LLVertexBuffer::unbind(); + gPipeline.generateGlow(&gPipeline.mPostMap); + gPipeline.combineGlow(&gPipeline.mPostMap, &screen); + gPipeline.renderDoF(&screen, &gPipeline.mPostMap); + gPipeline.applyFXAA(&gPipeline.mPostMap, &screen); + + // Final render + + gDeferredPostNoDoFProgram.bind(); + + // From LLPipeline::renderFinalize: "Whatever is last in the above post processing chain should _always_ be rendered directly here. If not, expect problems." + gDeferredPostNoDoFProgram.bindTexture(LLShaderMgr::DEFERRED_DIFFUSE, &screen); + gDeferredPostNoDoFProgram.bindTexture(LLShaderMgr::DEFERRED_DEPTH, mBoundTarget, true); + + { + LLGLDepthTest depth_test(GL_TRUE, GL_TRUE, GL_ALWAYS); + gPipeline.mScreenTriangleVB->setBuffer(); + gPipeline.mScreenTriangleVB->drawArrays(LLRender::TRIANGLES, 0, 3); + } + + gDeferredPostNoDoFProgram.unbind(); + + // Clean up + gPipeline.setupHWLights(); + gPipeline.mReflectionMapManager.forceDefaultProbeAndUpdateUniforms(false); + + return TRUE; +} + +void LLGLTFPreviewTexture::postRender(BOOL success) +{ + LL_PROFILE_ZONE_SCOPED_CATEGORY_UI; + + if (!mShouldRender) { return; } + mShouldRender = false; + + LLViewerDynamicTexture::postRender(success); +} + +// static +LLPointer<LLViewerTexture> LLGLTFMaterialPreviewMgr::getPreview(LLPointer<LLFetchedGLTFMaterial> &material) +{ + if (!material) + { + return nullptr; + } + + if (!is_material_loaded_enough_for_ui(*material)) + { + return nullptr; + } + + return LLGLTFPreviewTexture::create(material); +} |