diff options
Diffstat (limited to 'indra/llprimitive')
| -rw-r--r-- | indra/llprimitive/CMakeLists.txt | 2 | ||||
| -rw-r--r-- | indra/llprimitive/llgltfloader.cpp | 404 | ||||
| -rw-r--r-- | indra/llprimitive/llgltfloader.h | 206 | ||||
| -rw-r--r-- | indra/llprimitive/llmodel.cpp | 156 | ||||
| -rw-r--r-- | indra/llprimitive/llmodel.h | 1 | ||||
| -rw-r--r-- | indra/llprimitive/llmodelloader.cpp | 2 | ||||
| -rw-r--r-- | indra/llprimitive/llmodelloader.h | 6 |
7 files changed, 165 insertions, 612 deletions
diff --git a/indra/llprimitive/CMakeLists.txt b/indra/llprimitive/CMakeLists.txt index 00d821c470..21d412baeb 100644 --- a/indra/llprimitive/CMakeLists.txt +++ b/indra/llprimitive/CMakeLists.txt @@ -34,7 +34,6 @@ endif(LINUX OR CMAKE_SYSTEM_NAME MATCHES FreeBSD ) set(llprimitive_SOURCE_FILES lldaeloader.cpp - llgltfloader.cpp llgltfmaterial.cpp llmaterialid.cpp llmaterial.cpp @@ -54,7 +53,6 @@ set(llprimitive_SOURCE_FILES set(llprimitive_HEADER_FILES CMakeLists.txt lldaeloader.h - llgltfloader.h llgltfmaterial.h llgltfmaterial_templates.h legacy_object_types.h diff --git a/indra/llprimitive/llgltfloader.cpp b/indra/llprimitive/llgltfloader.cpp deleted file mode 100644 index 480012699a..0000000000 --- a/indra/llprimitive/llgltfloader.cpp +++ /dev/null @@ -1,404 +0,0 @@ -/** - * @file LLGLTFLoader.cpp - * @brief LLGLTFLoader class implementation - * - * $LicenseInfo:firstyear=2022&license=viewerlgpl$ - * 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 - * $/LicenseInfo$ - */ - -#include "llgltfloader.h" - -// Import & define single-header gltf import/export lib -#define TINYGLTF_IMPLEMENTATION -#define TINYGLTF_USE_CPP14 // default is C++ 11 - -// tinygltf by default loads image files using STB -#define STB_IMAGE_IMPLEMENTATION -// to use our own image loading: -// 1. replace this definition with TINYGLTF_NO_STB_IMAGE -// 2. provide image loader callback with TinyGLTF::SetImageLoader(LoadimageDataFunction LoadImageData, void *user_data) - -// tinygltf saves image files using STB -#define STB_IMAGE_WRITE_IMPLEMENTATION -// similarly, can override with TINYGLTF_NO_STB_IMAGE_WRITE and TinyGLTF::SetImageWriter(fxn, data) - -// Additionally, disable inclusion of STB header files entirely with -// TINYGLTF_NO_INCLUDE_STB_IMAGE -// TINYGLTF_NO_INCLUDE_STB_IMAGE_WRITE -#include "tinygltf/tiny_gltf.h" - - -// TODO: includes inherited from dae loader. Validate / prune - -#include "llsdserialize.h" -#include "lljoint.h" - -#include "llmatrix4a.h" - -#include <boost/regex.hpp> -#include <boost/algorithm/string/replace.hpp> - -static const std::string lod_suffix[LLModel::NUM_LODS] = -{ - "_LOD0", - "_LOD1", - "_LOD2", - "", - "_PHYS", -}; - - -LLGLTFLoader::LLGLTFLoader(std::string filename, - S32 lod, - LLModelLoader::load_callback_t load_cb, - LLModelLoader::joint_lookup_func_t joint_lookup_func, - LLModelLoader::texture_load_func_t texture_load_func, - LLModelLoader::state_callback_t state_cb, - void * opaque_userdata, - JointTransformMap & jointTransformMap, - JointNameSet & jointsFromNodes, - std::map<std::string, std::string> &jointAliasMap, - U32 maxJointsPerMesh, - U32 modelLimit) //, - //bool preprocess) - : LLModelLoader( filename, - lod, - load_cb, - joint_lookup_func, - texture_load_func, - state_cb, - opaque_userdata, - jointTransformMap, - jointsFromNodes, - jointAliasMap, - maxJointsPerMesh ), - //mPreprocessGLTF(preprocess), - mMeshesLoaded(false), - mMaterialsLoaded(false) -{ -} - -LLGLTFLoader::~LLGLTFLoader() {} - -bool LLGLTFLoader::OpenFile(const std::string &filename) -{ - tinygltf::TinyGLTF loader; - std::string error_msg; - std::string warn_msg; - std::string filename_lc(filename); - LLStringUtil::toLower(filename_lc); - - // Load a tinygltf model fom a file. Assumes that the input filename has already been - // been sanitized to one of (.gltf , .glb) extensions, so does a simple find to distinguish. - if (std::string::npos == filename_lc.rfind(".gltf")) - { // file is binary - mGltfLoaded = loader.LoadBinaryFromFile(&mGltfModel, &error_msg, &warn_msg, filename); - } - else - { // file is ascii - mGltfLoaded = loader.LoadASCIIFromFile(&mGltfModel, &error_msg, &warn_msg, filename); - } - - if (!mGltfLoaded) - { - if (!warn_msg.empty()) - LL_WARNS("GLTF_IMPORT") << "gltf load warning: " << warn_msg.c_str() << LL_ENDL; - if (!error_msg.empty()) - LL_WARNS("GLTF_IMPORT") << "gltf load error: " << error_msg.c_str() << LL_ENDL; - return false; - } - - mMeshesLoaded = parseMeshes(); - if (mMeshesLoaded) uploadMeshes(); - - mMaterialsLoaded = parseMaterials(); - if (mMaterialsLoaded) uploadMaterials(); - - return (mMeshesLoaded || mMaterialsLoaded); -} - -bool LLGLTFLoader::parseMeshes() -{ - if (!mGltfLoaded) return false; - - // 2022-04 DJH Volume params from dae example. TODO understand PCODE - LLVolumeParams volume_params; - volume_params.setType(LL_PCODE_PROFILE_SQUARE, LL_PCODE_PATH_LINE); - - for (tinygltf::Mesh mesh : mGltfModel.meshes) - { - LLModel *pModel = new LLModel(volume_params, 0.f); - - if (populateModelFromMesh(pModel, mesh) && - (LLModel::NO_ERRORS == pModel->getStatus()) && - validate_model(pModel)) - { - mModelList.push_back(pModel); - } - else - { - setLoadState(ERROR_MODEL + pModel->getStatus()); - delete(pModel); - return false; - } - } - return true; -} - -bool LLGLTFLoader::populateModelFromMesh(LLModel* pModel, const tinygltf::Mesh &mesh) -{ - pModel->mLabel = mesh.name; - int pos_idx; - tinygltf::Accessor indices_a, positions_a, normals_a, uv0_a, color0_a; - - auto prims = mesh.primitives; - for (auto prim : prims) - { - if (prim.indices >= 0) indices_a = mGltfModel.accessors[prim.indices]; - - pos_idx = (prim.attributes.count("POSITION") > 0) ? prim.attributes.at("POSITION") : -1; - if (pos_idx >= 0) - { - positions_a = mGltfModel.accessors[pos_idx]; - if (TINYGLTF_COMPONENT_TYPE_FLOAT != positions_a.componentType) - continue; - auto positions_bv = mGltfModel.bufferViews[positions_a.bufferView]; - auto positions_buf = mGltfModel.buffers[positions_bv.buffer]; - //auto type = positions_vb. - //if (positions_buf.name - } - -#if 0 - int norm_idx, tan_idx, uv0_idx, uv1_idx, color0_idx, color1_idx; - norm_idx = (prim.attributes.count("NORMAL") > 0) ? prim.attributes.at("NORMAL") : -1; - tan_idx = (prim.attributes.count("TANGENT") > 0) ? prim.attributes.at("TANGENT") : -1; - uv0_idx = (prim.attributes.count("TEXCOORDS_0") > 0) ? prim.attributes.at("TEXCOORDS_0") : -1; - uv1_idx = (prim.attributes.count("TEXCOORDS_1") > 0) ? prim.attributes.at("TEXCOORDS_1") : -1; - color0_idx = (prim.attributes.count("COLOR_0") > 0) ? prim.attributes.at("COLOR_0") : -1; - color1_idx = (prim.attributes.count("COLOR_1") > 0) ? prim.attributes.at("COLOR_1") : -1; -#endif - - if (prim.mode == TINYGLTF_MODE_TRIANGLES) - { - //auto pos = mesh. TODO resume here DJH 2022-04 - } - } - - //pModel->addFace() - return false; -} - -bool LLGLTFLoader::parseMaterials() -{ - if (!mGltfLoaded) return false; - - // fill local texture data structures - mSamplers.clear(); - for (auto in_sampler : mGltfModel.samplers) - { - gltf_sampler sampler; - sampler.magFilter = in_sampler.magFilter > 0 ? in_sampler.magFilter : GL_LINEAR; - sampler.minFilter = in_sampler.minFilter > 0 ? in_sampler.minFilter : GL_LINEAR;; - sampler.wrapS = in_sampler.wrapS; - sampler.wrapT = in_sampler.wrapT; - sampler.name = in_sampler.name; // unused - mSamplers.push_back(sampler); - } - - mImages.clear(); - for (auto in_image : mGltfModel.images) - { - gltf_image image; - image.numChannels = in_image.component; - image.bytesPerChannel = in_image.bits >> 3; // Convert bits to bytes - image.pixelType = in_image.pixel_type; // Maps exactly, i.e. TINYGLTF_COMPONENT_TYPE_UNSIGNED_BYTE == GL_UNSIGNED_BYTE, etc - image.size = static_cast<U32>(in_image.image.size()); - image.height = in_image.height; - image.width = in_image.width; - image.data = in_image.image.data(); - - if (in_image.as_is) - { - LL_WARNS("GLTF_IMPORT") << "Unsupported image encoding" << LL_ENDL; - return false; - } - - if (image.size != image.height * image.width * image.numChannels * image.bytesPerChannel) - { - LL_WARNS("GLTF_IMPORT") << "Image size error" << LL_ENDL; - return false; - } - - mImages.push_back(image); - } - - mTextures.clear(); - for (auto in_tex : mGltfModel.textures) - { - gltf_texture tex; - tex.imageIdx = in_tex.source; - tex.samplerIdx = in_tex.sampler; - tex.imageUuid.setNull(); - - if (tex.imageIdx >= mImages.size() || tex.samplerIdx >= mSamplers.size()) - { - LL_WARNS("GLTF_IMPORT") << "Texture sampler/image index error" << LL_ENDL; - return false; - } - - mTextures.push_back(tex); - } - - // parse each material - for (tinygltf::Material gltf_material : mGltfModel.materials) - { - gltf_render_material mat; - mat.name = gltf_material.name; - - tinygltf::PbrMetallicRoughness& pbr = gltf_material.pbrMetallicRoughness; - mat.hasPBR = true; // Always true, for now - - mat.baseColor.set(pbr.baseColorFactor.data()); - mat.hasBaseTex = pbr.baseColorTexture.index >= 0; - mat.baseColorTexIdx = pbr.baseColorTexture.index; - mat.baseColorTexCoords = pbr.baseColorTexture.texCoord; - - mat.metalness = pbr.metallicFactor; - mat.roughness = pbr.roughnessFactor; - mat.hasMRTex = pbr.metallicRoughnessTexture.index >= 0; - mat.metalRoughTexIdx = pbr.metallicRoughnessTexture.index; - mat.metalRoughTexCoords = pbr.metallicRoughnessTexture.texCoord; - - mat.normalScale = gltf_material.normalTexture.scale; - mat.hasNormalTex = gltf_material.normalTexture.index >= 0; - mat.normalTexIdx = gltf_material.normalTexture.index; - mat.normalTexCoords = gltf_material.normalTexture.texCoord; - - mat.occlusionScale = gltf_material.occlusionTexture.strength; - mat.hasOcclusionTex = gltf_material.occlusionTexture.index >= 0; - mat.occlusionTexIdx = gltf_material.occlusionTexture.index; - mat.occlusionTexCoords = gltf_material.occlusionTexture.texCoord; - - mat.emissiveColor.set(gltf_material.emissiveFactor.data()); - mat.hasEmissiveTex = gltf_material.emissiveTexture.index >= 0; - mat.emissiveTexIdx = gltf_material.emissiveTexture.index; - mat.emissiveTexCoords = gltf_material.emissiveTexture.texCoord; - - mat.alphaMode = gltf_material.alphaMode; - mat.alphaMask = gltf_material.alphaCutoff; - - if ((mat.hasNormalTex && (mat.normalTexIdx >= mTextures.size())) || - (mat.hasOcclusionTex && (mat.occlusionTexIdx >= mTextures.size())) || - (mat.hasEmissiveTex && (mat.emissiveTexIdx >= mTextures.size())) || - (mat.hasBaseTex && (mat.baseColorTexIdx >= mTextures.size())) || - (mat.hasMRTex && (mat.metalRoughTexIdx >= mTextures.size()))) - { - LL_WARNS("GLTF_IMPORT") << "Texture resource index error" << LL_ENDL; - return false; - } - - if ((mat.hasNormalTex && (mat.normalTexCoords > 2)) || // mesh can have up to 3 sets of UV - (mat.hasOcclusionTex && (mat.occlusionTexCoords > 2)) || - (mat.hasEmissiveTex && (mat.emissiveTexCoords > 2)) || - (mat.hasBaseTex && (mat.baseColorTexCoords > 2)) || - (mat.hasMRTex && (mat.metalRoughTexCoords > 2))) - { - LL_WARNS("GLTF_IMPORT") << "Image texcoord index error" << LL_ENDL; - return false; - } - - mMaterials.push_back(mat); - } - - return true; -} - -// TODO: convert raw vertex buffers to UUIDs -void LLGLTFLoader::uploadMeshes() -{ - llassert(0); -} - -// convert raw image buffers to texture UUIDs & assemble into a render material -void LLGLTFLoader::uploadMaterials() -{ - for (gltf_render_material mat : mMaterials) // Initially 1 material per gltf file, but design for multiple - { - if (mat.hasBaseTex) - { - gltf_texture& gtex = mTextures[mat.baseColorTexIdx]; - if (gtex.imageUuid.isNull()) - { - gtex.imageUuid = imageBufferToTextureUUID(gtex); - } - } - - if (mat.hasMRTex) - { - gltf_texture& gtex = mTextures[mat.metalRoughTexIdx]; - if (gtex.imageUuid.isNull()) - { - gtex.imageUuid = imageBufferToTextureUUID(gtex); - } - } - - if (mat.hasNormalTex) - { - gltf_texture& gtex = mTextures[mat.normalTexIdx]; - if (gtex.imageUuid.isNull()) - { - gtex.imageUuid = imageBufferToTextureUUID(gtex); - } - } - - if (mat.hasOcclusionTex) - { - gltf_texture& gtex = mTextures[mat.occlusionTexIdx]; - if (gtex.imageUuid.isNull()) - { - gtex.imageUuid = imageBufferToTextureUUID(gtex); - } - } - - if (mat.hasEmissiveTex) - { - gltf_texture& gtex = mTextures[mat.emissiveTexIdx]; - if (gtex.imageUuid.isNull()) - { - gtex.imageUuid = imageBufferToTextureUUID(gtex); - } - } - } -} - -LLUUID LLGLTFLoader::imageBufferToTextureUUID(const gltf_texture& tex) -{ - //gltf_image& image = mImages[tex.imageIdx]; - //gltf_sampler& sampler = mSamplers[tex.samplerIdx]; - - // fill an LLSD container with image+sampler data - - // upload texture - - // retrieve UUID - - return LLUUID::null; -} diff --git a/indra/llprimitive/llgltfloader.h b/indra/llprimitive/llgltfloader.h deleted file mode 100644 index 66671d1c5a..0000000000 --- a/indra/llprimitive/llgltfloader.h +++ /dev/null @@ -1,206 +0,0 @@ -/** - * @file LLGLTFLoader.h - * @brief LLGLTFLoader class definition - * - * $LicenseInfo:firstyear=2022&license=viewerlgpl$ - * 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 - * $/LicenseInfo$ - */ - -#ifndef LL_LLGLTFLoader_H -#define LL_LLGLTFLoader_H - -#include "tinygltf/tiny_gltf.h" - -#include "llglheaders.h" -#include "llmodelloader.h" - -// gltf_* structs are temporary, used to organize the subset of data that eventually goes into the material LLSD - -class gltf_sampler -{ -public: - // Uses GL enums - S32 minFilter; // GL_NEAREST, GL_LINEAR, GL_NEAREST_MIPMAP_NEAREST, GL_LINEAR_MIPMAP_NEAREST, GL_NEAREST_MIPMAP_LINEAR or GL_LINEAR_MIPMAP_LINEAR - S32 magFilter; // GL_NEAREST or GL_LINEAR - S32 wrapS; // GL_CLAMP_TO_EDGE, GL_MIRRORED_REPEAT or GL_REPEAT - S32 wrapT; // GL_CLAMP_TO_EDGE, GL_MIRRORED_REPEAT or GL_REPEAT - //S32 wrapR; // Found in some sample files, but not part of glTF 2.0 spec. Ignored. - std::string name; // optional, currently unused - // extensions and extras are sampler optional fields that we don't support - at least initially -}; - -class gltf_image -{ -public:// Note that glTF images are defined with row 0 at the top (opposite of OpenGL) - U8* data; // ptr to decoded image data - U32 size; // in bytes, regardless of channel width - U32 width; - U32 height; - U32 numChannels; // range 1..4 - U32 bytesPerChannel; // converted from gltf "bits", expects only 8, 16 or 32 as input - U32 pixelType; // one of (TINYGLTF_COMPONENT_TYPE)_UNSIGNED_BYTE, _UNSIGNED_SHORT, _UNSIGNED_INT, or _FLOAT -}; - -class gltf_texture -{ -public: - U32 imageIdx; - U32 samplerIdx; - LLUUID imageUuid = LLUUID::null; -}; - -class gltf_render_material -{ -public: - std::string name; - - // scalar values - LLColor4 baseColor; // linear encoding. Multiplied with vertex color, if present. - double metalness; - double roughness; - double normalScale; // scale applies only to X,Y components of normal - double occlusionScale; // strength multiplier for occlusion - LLColor4 emissiveColor; // emissive mulitiplier, assumed linear encoding (spec 2.0 is silent) - std::string alphaMode; // "OPAQUE", "MASK" or "BLEND" - double alphaMask; // alpha cut-off - - // textures - U32 baseColorTexIdx; // always sRGB encoded - U32 metalRoughTexIdx; // always linear, roughness in G channel, metalness in B channel - U32 normalTexIdx; // linear, valid range R[0-1], G[0-1], B[0.5-1]. Normal = texel * 2 - vec3(1.0) - U32 occlusionTexIdx; // linear, occlusion in R channel, 0 meaning fully occluded, 1 meaning not occluded - U32 emissiveTexIdx; // always stored as sRGB, in nits (candela / meter^2) - - // texture coordinates - U32 baseColorTexCoords; - U32 metalRoughTexCoords; - U32 normalTexCoords; - U32 occlusionTexCoords; - U32 emissiveTexCoords; - - // TODO: Add traditional (diffuse, normal, specular) UUIDs here, or add this struct to LL_TextureEntry?? - - bool hasPBR; - bool hasBaseTex, hasMRTex, hasNormalTex, hasOcclusionTex, hasEmissiveTex; - - // This field is populated after upload - LLUUID material_uuid = LLUUID::null; - -}; - -class gltf_mesh -{ -public: - std::string name; - - // TODO add mesh import DJH 2022-04 - -}; - -class LLGLTFLoader : public LLModelLoader -{ - public: - typedef std::map<std::string, LLImportMaterial> material_map; - - LLGLTFLoader(std::string filename, - S32 lod, - LLModelLoader::load_callback_t load_cb, - LLModelLoader::joint_lookup_func_t joint_lookup_func, - LLModelLoader::texture_load_func_t texture_load_func, - LLModelLoader::state_callback_t state_cb, - void * opaque_userdata, - JointTransformMap & jointTransformMap, - JointNameSet & jointsFromNodes, - std::map<std::string, std::string> &jointAliasMap, - U32 maxJointsPerMesh, - U32 modelLimit); //, - //bool preprocess ); - virtual ~LLGLTFLoader(); - - virtual bool OpenFile(const std::string &filename); - -protected: - tinygltf::Model mGltfModel; - bool mGltfLoaded; - bool mMeshesLoaded; - bool mMaterialsLoaded; - - std::vector<gltf_mesh> mMeshes; - std::vector<gltf_render_material> mMaterials; - - std::vector<gltf_texture> mTextures; - std::vector<gltf_image> mImages; - std::vector<gltf_sampler> mSamplers; - -private: - bool parseMeshes(); - void uploadMeshes(); - bool parseMaterials(); - void uploadMaterials(); - bool populateModelFromMesh(LLModel* pModel, const tinygltf::Mesh &mesh); - LLUUID imageBufferToTextureUUID(const gltf_texture& tex); - - // bool mPreprocessGLTF; - - /* Below inherited from dae loader - unknown if/how useful here - - void processElement(gltfElement *element, bool &badElement, GLTF *gltf); - void processGltfModel(LLModel *model, GLTF *gltf, gltfElement *pRoot, gltfMesh *mesh, gltfSkin *skin); - - material_map getMaterials(LLModel *model, gltfInstance_geometry *instance_geo, GLTF *gltf); - LLImportMaterial profileToMaterial(gltfProfile_COMMON *material, GLTF *gltf); - LLColor4 getGltfColor(gltfElement *element); - - gltfElement *getChildFromElement(gltfElement *pElement, std::string const &name); - - bool isNodeAJoint(gltfNode *pNode); - void processJointNode(gltfNode *pNode, std::map<std::string, LLMatrix4> &jointTransforms); - void extractTranslation(gltfTranslate *pTranslate, LLMatrix4 &transform); - void extractTranslationViaElement(gltfElement *pTranslateElement, LLMatrix4 &transform); - void extractTranslationViaSID(gltfElement *pElement, LLMatrix4 &transform); - void buildJointToNodeMappingFromScene(gltfElement *pRoot); - void processJointToNodeMapping(gltfNode *pNode); - void processChildJoints(gltfNode *pParentNode); - - bool verifyCount(int expected, int result); - - // Verify that a controller matches vertex counts - bool verifyController(gltfController *pController); - - static bool addVolumeFacesFromGltfMesh(LLModel *model, gltfMesh *mesh, LLSD &log_msg); - static bool createVolumeFacesFromGltfMesh(LLModel *model, gltfMesh *mesh); - - static LLModel *loadModelFromGltfMesh(gltfMesh *mesh); - - // Loads a mesh breaking it into one or more models as necessary - // to get around volume face limitations while retaining >8 materials - // - bool loadModelsFromGltfMesh(gltfMesh *mesh, std::vector<LLModel *> &models_out, U32 submodel_limit); - - static std::string getElementLabel(gltfElement *element); - static size_t getSuffixPosition(std::string label); - static std::string getLodlessLabel(gltfElement *element); - - static std::string preprocessGLTF(std::string filename); - */ - -}; -#endif // LL_LLGLTFLLOADER_H diff --git a/indra/llprimitive/llmodel.cpp b/indra/llprimitive/llmodel.cpp index 6b4bb3a8b0..0bc7846023 100644 --- a/indra/llprimitive/llmodel.cpp +++ b/indra/llprimitive/llmodel.cpp @@ -334,6 +334,162 @@ void LLModel::normalizeVolumeFaces() } } +void LLModel::normalizeVolumeFacesAndWeights() +{ + if (!mVolumeFaces.empty()) + { + LLVector4a min, max; + + // For all of the volume faces + // in the model, loop over + // them and see what the extents + // of the volume along each axis. + min = mVolumeFaces[0].mExtents[0]; + max = mVolumeFaces[0].mExtents[1]; + + for (U32 i = 1; i < mVolumeFaces.size(); ++i) + { + LLVolumeFace& face = mVolumeFaces[i]; + + update_min_max(min, max, face.mExtents[0]); + update_min_max(min, max, face.mExtents[1]); + + if (face.mTexCoords) + { + LLVector2& min_tc = face.mTexCoordExtents[0]; + LLVector2& max_tc = face.mTexCoordExtents[1]; + + min_tc = face.mTexCoords[0]; + max_tc = face.mTexCoords[0]; + + for (S32 j = 1; j < face.mNumVertices; ++j) + { + update_min_max(min_tc, max_tc, face.mTexCoords[j]); + } + } + else + { + face.mTexCoordExtents[0].set(0, 0); + face.mTexCoordExtents[1].set(1, 1); + } + } + + // Now that we have the extents of the model + // we can compute the offset needed to center + // the model at the origin. + + // Compute center of the model + // and make it negative to get translation + // needed to center at origin. + LLVector4a trans; + trans.setAdd(min, max); + trans.mul(-0.5f); + + // Compute the total size along all + // axes of the model. + LLVector4a size; + size.setSub(max, min); + + // Prevent division by zero. + F32 x = size[0]; + F32 y = size[1]; + F32 z = size[2]; + F32 w = size[3]; + if (fabs(x) < F_APPROXIMATELY_ZERO) + { + x = 1.0; + } + if (fabs(y) < F_APPROXIMATELY_ZERO) + { + y = 1.0; + } + if (fabs(z) < F_APPROXIMATELY_ZERO) + { + z = 1.0; + } + size.set(x, y, z, w); + + // Compute scale as reciprocal of size + LLVector4a scale; + scale.splat(1.f); + scale.div(size); + + LLVector4a inv_scale(1.f); + inv_scale.div(scale); + + for (U32 i = 0; i < mVolumeFaces.size(); ++i) + { + LLVolumeFace& face = mVolumeFaces[i]; + + // We shrink the extents so + // that they fall within + // the unit cube. + // VFExtents change + face.mExtents[0].add(trans); + face.mExtents[0].mul(scale); + + face.mExtents[1].add(trans); + face.mExtents[1].mul(scale); + + // For all the positions, we scale + // the positions to fit within the unit cube. + LLVector4a* pos = (LLVector4a*)face.mPositions; + LLVector4a* norm = (LLVector4a*)face.mNormals; + LLVector4a* t = (LLVector4a*)face.mTangents; + + for (S32 j = 0; j < face.mNumVertices; ++j) + { + pos[j].add(trans); + pos[j].mul(scale); + if (norm && !norm[j].equals3(LLVector4a::getZero())) + { + norm[j].mul(inv_scale); + norm[j].normalize3(); + } + + if (t) + { + F32 w = t[j].getF32ptr()[3]; + t[j].mul(inv_scale); + t[j].normalize3(); + t[j].getF32ptr()[3] = w; + } + } + } + + weight_map old_weights = mSkinWeights; + mSkinWeights.clear(); + mPosition.clear(); + + for (auto& weights : old_weights) + { + LLVector4a pos(weights.first.mV[VX], weights.first.mV[VY], weights.first.mV[VZ]); + pos.add(trans); + pos.mul(scale); + LLVector3 scaled_pos(pos.getF32ptr()); + mPosition.push_back(scaled_pos); + mSkinWeights[scaled_pos] = weights.second; + } + + // mNormalizedScale is the scale at which + // we would need to multiply the model + // by to get the original size of the + // model instead of the normalized size. + LLVector4a normalized_scale; + normalized_scale.splat(1.f); + normalized_scale.div(scale); + mNormalizedScale.set(normalized_scale.getF32ptr()); + mNormalizedTranslation.set(trans.getF32ptr()); + mNormalizedTranslation *= -1.f; + + // remember normalized scale so original dimensions can be recovered for mesh processing (i.e. tangent generation) + for (auto& face : mVolumeFaces) + { + face.mNormalizedScale = mNormalizedScale; + } + } +} + void LLModel::getNormalizedScaleTranslation(LLVector3& scale_out, LLVector3& translation_out) const { scale_out = mNormalizedScale; diff --git a/indra/llprimitive/llmodel.h b/indra/llprimitive/llmodel.h index 4b5d079b48..521bd54fd1 100644 --- a/indra/llprimitive/llmodel.h +++ b/indra/llprimitive/llmodel.h @@ -204,6 +204,7 @@ public: void sortVolumeFacesByMaterialName(); void normalizeVolumeFaces(); + void normalizeVolumeFacesAndWeights(); void trimVolumeFacesToSize(U32 new_count = LL_SCULPT_MESH_MAX_FACES, LLVolume::face_list_t* remainder = NULL); void remapVolumeFaces(); void optimizeVolumeFaces(); diff --git a/indra/llprimitive/llmodelloader.cpp b/indra/llprimitive/llmodelloader.cpp index 84adec4da5..dee39175f8 100644 --- a/indra/llprimitive/llmodelloader.cpp +++ b/indra/llprimitive/llmodelloader.cpp @@ -150,6 +150,8 @@ void LLModelLoader::run() { mWarningsArray.clear(); doLoadModel(); + // todo: we are inside of a thread, push this into main thread worker, + // not into doOnIdleOneTime that laks tread safety doOnIdleOneTime(boost::bind(&LLModelLoader::loadModelCallback,this)); } diff --git a/indra/llprimitive/llmodelloader.h b/indra/llprimitive/llmodelloader.h index 530e61e2b8..73ec0ed1f4 100644 --- a/indra/llprimitive/llmodelloader.h +++ b/indra/llprimitive/llmodelloader.h @@ -111,6 +111,7 @@ public: bool mCacheOnlyHitIfRigged; // ignore cached SLM if it does not contain rig info (and we want rig info) model_list mModelList; + // The scene is pretty much what ends up getting loaded for upload. Basically assign things to this guy if you want something uploaded. scene mScene; typedef std::queue<LLPointer<LLModel> > model_queue; @@ -119,9 +120,14 @@ public: model_queue mPhysicsQ; //map of avatar joints as named in COLLADA assets to internal joint names + // Do not use this for anything other than looking up the name of a joint. This is populated elsewhere. JointMap mJointMap; + + // The joint list is what you want to use to actually setup the specific joint transformations. JointTransformMap& mJointList; JointNameSet& mJointsFromNode; + + U32 mMaxJointsPerMesh; LLModelLoader( |