mirror of
https://github.com/TorqueGameEngines/Torque3D.git
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WIP of assimp integration.
This commit is contained in:
Areloch
parent
32c7f2c7a7
commit
bf170ffbca
2135 changed files with 1260856 additions and 7 deletions
596
Engine/lib/assimp/code/OgreMaterial.cpp
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596
Engine/lib/assimp/code/OgreMaterial.cpp
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/*
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Open Asset Import Library (assimp)
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----------------------------------------------------------------------
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Copyright (c) 2006-2018, assimp team
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All rights reserved.
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Redistribution and use of this software in source and binary forms,
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with or without modification, are permitted provided that the
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following conditions are met:
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* Redistributions of source code must retain the above
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copyright notice, this list of conditions and the
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following disclaimer.
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* Redistributions in binary form must reproduce the above
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copyright notice, this list of conditions and the
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following disclaimer in the documentation and/or other
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materials provided with the distribution.
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* Neither the name of the assimp team, nor the names of its
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contributors may be used to endorse or promote products
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derived from this software without specific prior
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written permission of the assimp team.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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----------------------------------------------------------------------
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*/
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#ifndef ASSIMP_BUILD_NO_OGRE_IMPORTER
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#include "OgreImporter.h"
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#include <assimp/TinyFormatter.h>
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#include <assimp/material.h>
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#include <assimp/scene.h>
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#include <assimp/DefaultLogger.hpp>
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#include <assimp/fast_atof.h>
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#include <vector>
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#include <sstream>
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#include <memory>
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using namespace std;
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namespace Assimp
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{
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namespace Ogre
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{
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static const string partComment = "//";
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static const string partBlockStart = "{";
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static const string partBlockEnd = "}";
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void OgreImporter::ReadMaterials(const std::string &pFile, Assimp::IOSystem *pIOHandler, aiScene *pScene, Mesh *mesh)
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{
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std::vector<aiMaterial*> materials;
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// Create materials that can be found and parsed via the IOSystem.
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for (size_t i=0, len=mesh->NumSubMeshes(); i<len; ++i)
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{
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SubMesh *submesh = mesh->GetSubMesh(i);
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if (submesh && !submesh->materialRef.empty())
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{
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aiMaterial *material = ReadMaterial(pFile, pIOHandler, submesh->materialRef);
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if (material)
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{
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submesh->materialIndex = static_cast<int>(materials.size());
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materials.push_back(material);
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}
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}
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}
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AssignMaterials(pScene, materials);
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}
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void OgreImporter::ReadMaterials(const std::string &pFile, Assimp::IOSystem *pIOHandler, aiScene *pScene, MeshXml *mesh)
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{
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std::vector<aiMaterial*> materials;
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// Create materials that can be found and parsed via the IOSystem.
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for (size_t i=0, len=mesh->NumSubMeshes(); i<len; ++i)
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{
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SubMeshXml *submesh = mesh->GetSubMesh( static_cast<uint16_t>(i));
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if (submesh && !submesh->materialRef.empty())
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{
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aiMaterial *material = ReadMaterial(pFile, pIOHandler, submesh->materialRef);
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if (material)
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{
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submesh->materialIndex = static_cast<int>(materials.size());
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materials.push_back(material);
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}
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}
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}
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AssignMaterials(pScene, materials);
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}
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void OgreImporter::AssignMaterials(aiScene *pScene, std::vector<aiMaterial*> &materials)
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{
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pScene->mNumMaterials = static_cast<unsigned int>(materials.size());
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if (pScene->mNumMaterials > 0)
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{
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pScene->mMaterials = new aiMaterial*[pScene->mNumMaterials];
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for(size_t i=0;i<pScene->mNumMaterials; ++i) {
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pScene->mMaterials[i] = materials[i];
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}
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}
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}
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aiMaterial* OgreImporter::ReadMaterial(const std::string &pFile, Assimp::IOSystem *pIOHandler, const std::string &materialName)
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{
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if (materialName.empty()) {
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return 0;
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}
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// Full reference and examples of Ogre Material Script
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// can be found from http://www.ogre3d.org/docs/manual/manual_14.html
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/*and here is another one:
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import * from abstract_base_passes_depth.material
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import * from abstract_base.material
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import * from mat_shadow_caster.material
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import * from mat_character_singlepass.material
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material hero/hair/caster : mat_shadow_caster_skin_areject
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{
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set $diffuse_map "hero_hair_alpha_c.dds"
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}
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material hero/hair_alpha : mat_char_cns_singlepass_areject_4weights
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{
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set $diffuse_map "hero_hair_alpha_c.dds"
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set $specular_map "hero_hair_alpha_s.dds"
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set $normal_map "hero_hair_alpha_n.dds"
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set $light_map "black_lightmap.dds"
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set $shadow_caster_material "hero/hair/caster"
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}
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*/
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stringstream ss;
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// Scope for scopre_ptr auto release
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{
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/* There are three .material options in priority order:
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1) File with the material name (materialName)
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2) File with the mesh files base name (pFile)
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3) Optional user defined material library file (m_userDefinedMaterialLibFile) */
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std::vector<string> potentialFiles;
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potentialFiles.push_back(materialName + ".material");
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potentialFiles.push_back(pFile.substr(0, pFile.rfind(".mesh")) + ".material");
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if (!m_userDefinedMaterialLibFile.empty())
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potentialFiles.push_back(m_userDefinedMaterialLibFile);
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IOStream *materialFile = 0;
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for(size_t i=0; i<potentialFiles.size(); ++i)
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{
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materialFile = pIOHandler->Open(potentialFiles[i]);
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if (materialFile) {
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break;
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}
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ASSIMP_LOG_DEBUG_F( "Source file for material '", materialName, "' ", potentialFiles[i], " does not exist");
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}
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if (!materialFile)
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{
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ASSIMP_LOG_ERROR_F( "Failed to find source file for material '", materialName, "'");
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return 0;
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}
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std::unique_ptr<IOStream> stream(materialFile);
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if (stream->FileSize() == 0)
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{
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ASSIMP_LOG_WARN_F( "Source file for material '", materialName, "' is empty (size is 0 bytes)");
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return 0;
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}
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// Read bytes
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vector<char> data(stream->FileSize());
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stream->Read(&data[0], stream->FileSize(), 1);
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// Convert to UTF-8 and terminate the string for ss
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BaseImporter::ConvertToUTF8(data);
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data.push_back('\0');
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ss << &data[0];
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}
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ASSIMP_LOG_DEBUG_F("Reading material '", materialName, "'");
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aiMaterial *material = new aiMaterial();
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m_textures.clear();
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aiString ts(materialName);
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material->AddProperty(&ts, AI_MATKEY_NAME);
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// The stringstream will push words from a line until newline.
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// It will also trim whitespace from line start and between words.
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string linePart;
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ss >> linePart;
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const string partMaterial = "material";
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const string partTechnique = "technique";
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while(!ss.eof())
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{
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// Skip commented lines
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if (linePart == partComment)
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{
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NextAfterNewLine(ss, linePart);
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continue;
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}
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if (linePart != partMaterial)
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{
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ss >> linePart;
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continue;
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}
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ss >> linePart;
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if (linePart != materialName)
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{
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ss >> linePart;
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continue;
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}
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NextAfterNewLine(ss, linePart);
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if (linePart != partBlockStart)
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{
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ASSIMP_LOG_ERROR_F( "Invalid material: block start missing near index ", ss.tellg());
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return material;
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}
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ASSIMP_LOG_DEBUG_F("material '", materialName, "'");
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while(linePart != partBlockEnd)
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{
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// Proceed to the first technique
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ss >> linePart;
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if (linePart == partTechnique)
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{
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string techniqueName = SkipLine(ss);
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ReadTechnique(Trim(techniqueName), ss, material);
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}
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// Read information from a custom material
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/** @todo This "set $x y" does not seem to be a official Ogre material system feature.
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Materials can inherit other materials and override texture units by using the (unique)
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parent texture unit name in your cloned material.
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This is not yet supported and below code is probably some hack from the original
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author of this Ogre importer. Should be removed? */
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if (linePart=="set")
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{
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ss >> linePart;
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if (linePart=="$specular")//todo load this values:
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{
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}
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else if (linePart=="$diffuse")
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{
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}
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else if (linePart=="$ambient")
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{
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}
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else if (linePart=="$colormap")
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{
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ss >> linePart;
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aiString ts(linePart);
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material->AddProperty(&ts, AI_MATKEY_TEXTURE(aiTextureType_DIFFUSE, 0));
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}
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else if (linePart=="$normalmap")
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{
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ss >> linePart;
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aiString ts(linePart);
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material->AddProperty(&ts, AI_MATKEY_TEXTURE(aiTextureType_NORMALS, 0));
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}
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else if (linePart=="$shininess_strength")
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{
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ss >> linePart;
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float Shininess = fast_atof(linePart.c_str());
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material->AddProperty(&Shininess, 1, AI_MATKEY_SHININESS_STRENGTH);
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}
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else if (linePart=="$shininess_exponent")
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{
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ss >> linePart;
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float Shininess = fast_atof(linePart.c_str());
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material->AddProperty(&Shininess, 1, AI_MATKEY_SHININESS);
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}
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//Properties from Venetica:
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else if (linePart=="$diffuse_map")
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{
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ss >> linePart;
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if (linePart[0] == '"')// "file" -> file
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linePart = linePart.substr(1, linePart.size()-2);
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aiString ts(linePart);
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material->AddProperty(&ts, AI_MATKEY_TEXTURE(aiTextureType_DIFFUSE, 0));
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}
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else if (linePart=="$specular_map")
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{
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ss >> linePart;
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if (linePart[0] == '"')// "file" -> file
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linePart = linePart.substr(1, linePart.size()-2);
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aiString ts(linePart);
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material->AddProperty(&ts, AI_MATKEY_TEXTURE(aiTextureType_SHININESS, 0));
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}
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else if (linePart=="$normal_map")
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{
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ss >> linePart;
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if (linePart[0]=='"')// "file" -> file
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linePart = linePart.substr(1, linePart.size()-2);
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aiString ts(linePart);
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material->AddProperty(&ts, AI_MATKEY_TEXTURE(aiTextureType_NORMALS, 0));
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}
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else if (linePart=="$light_map")
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{
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ss >> linePart;
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if (linePart[0]=='"') {
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linePart = linePart.substr(1, linePart.size() - 2);
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}
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aiString ts(linePart);
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material->AddProperty(&ts, AI_MATKEY_TEXTURE(aiTextureType_LIGHTMAP, 0));
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}
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}
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}
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ss >> linePart;
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}
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return material;
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}
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bool OgreImporter::ReadTechnique(const std::string &techniqueName, stringstream &ss, aiMaterial *material)
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{
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string linePart;
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ss >> linePart;
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if (linePart != partBlockStart)
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{
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ASSIMP_LOG_ERROR_F( "Invalid material: Technique block start missing near index ", ss.tellg());
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return false;
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}
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ASSIMP_LOG_DEBUG_F(" technique '", techniqueName, "'");
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const string partPass = "pass";
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while(linePart != partBlockEnd)
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{
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ss >> linePart;
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// Skip commented lines
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if (linePart == partComment)
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{
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SkipLine(ss);
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continue;
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}
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/// @todo Techniques have other attributes than just passes.
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if (linePart == partPass)
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{
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string passName = SkipLine(ss);
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ReadPass(Trim(passName), ss, material);
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}
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}
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return true;
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}
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bool OgreImporter::ReadPass(const std::string &passName, stringstream &ss, aiMaterial *material)
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{
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string linePart;
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ss >> linePart;
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|
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if (linePart != partBlockStart)
|
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{
|
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ASSIMP_LOG_ERROR_F( "Invalid material: Pass block start missing near index ", ss.tellg());
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return false;
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}
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||||
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ASSIMP_LOG_DEBUG_F(" pass '", passName, "'");
|
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|
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const string partAmbient = "ambient";
|
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const string partDiffuse = "diffuse";
|
||||
const string partSpecular = "specular";
|
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const string partEmissive = "emissive";
|
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const string partTextureUnit = "texture_unit";
|
||||
|
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while(linePart != partBlockEnd)
|
||||
{
|
||||
ss >> linePart;
|
||||
|
||||
// Skip commented lines
|
||||
if (linePart == partComment)
|
||||
{
|
||||
SkipLine(ss);
|
||||
continue;
|
||||
}
|
||||
|
||||
// Colors
|
||||
/// @todo Support alpha via aiColor4D.
|
||||
if (linePart == partAmbient || linePart == partDiffuse || linePart == partSpecular || linePart == partEmissive)
|
||||
{
|
||||
float r, g, b;
|
||||
ss >> r >> g >> b;
|
||||
const aiColor3D color(r, g, b);
|
||||
|
||||
ASSIMP_LOG_DEBUG_F( " ", linePart, " ", r, " ", g, " ", b);
|
||||
|
||||
if (linePart == partAmbient)
|
||||
{
|
||||
material->AddProperty(&color, 1, AI_MATKEY_COLOR_AMBIENT);
|
||||
}
|
||||
else if (linePart == partDiffuse)
|
||||
{
|
||||
material->AddProperty(&color, 1, AI_MATKEY_COLOR_DIFFUSE);
|
||||
}
|
||||
else if (linePart == partSpecular)
|
||||
{
|
||||
material->AddProperty(&color, 1, AI_MATKEY_COLOR_SPECULAR);
|
||||
}
|
||||
else if (linePart == partEmissive)
|
||||
{
|
||||
material->AddProperty(&color, 1, AI_MATKEY_COLOR_EMISSIVE);
|
||||
}
|
||||
}
|
||||
else if (linePart == partTextureUnit)
|
||||
{
|
||||
string textureUnitName = SkipLine(ss);
|
||||
ReadTextureUnit(Trim(textureUnitName), ss, material);
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
bool OgreImporter::ReadTextureUnit(const std::string &textureUnitName, stringstream &ss, aiMaterial *material)
|
||||
{
|
||||
string linePart;
|
||||
ss >> linePart;
|
||||
|
||||
if (linePart != partBlockStart)
|
||||
{
|
||||
ASSIMP_LOG_ERROR_F( "Invalid material: Texture unit block start missing near index ", ss.tellg());
|
||||
return false;
|
||||
}
|
||||
|
||||
ASSIMP_LOG_DEBUG_F(" texture_unit '", textureUnitName, "'");
|
||||
|
||||
const string partTexture = "texture";
|
||||
const string partTextCoordSet = "tex_coord_set";
|
||||
const string partColorOp = "colour_op";
|
||||
|
||||
aiTextureType textureType = aiTextureType_NONE;
|
||||
std::string textureRef;
|
||||
int uvCoord = 0;
|
||||
|
||||
while(linePart != partBlockEnd)
|
||||
{
|
||||
ss >> linePart;
|
||||
|
||||
// Skip commented lines
|
||||
if (linePart == partComment)
|
||||
{
|
||||
SkipLine(ss);
|
||||
continue;
|
||||
}
|
||||
|
||||
if (linePart == partTexture)
|
||||
{
|
||||
ss >> linePart;
|
||||
textureRef = linePart;
|
||||
|
||||
// User defined Assimp config property to detect texture type from filename.
|
||||
if (m_detectTextureTypeFromFilename)
|
||||
{
|
||||
size_t posSuffix = textureRef.find_last_of(".");
|
||||
size_t posUnderscore = textureRef.find_last_of("_");
|
||||
|
||||
if (posSuffix != string::npos && posUnderscore != string::npos && posSuffix > posUnderscore)
|
||||
{
|
||||
string identifier = Ogre::ToLower(textureRef.substr(posUnderscore, posSuffix - posUnderscore));
|
||||
ASSIMP_LOG_DEBUG_F( "Detecting texture type from filename postfix '", identifier, "'");
|
||||
|
||||
if (identifier == "_n" || identifier == "_nrm" || identifier == "_nrml" || identifier == "_normal" || identifier == "_normals" || identifier == "_normalmap")
|
||||
{
|
||||
textureType = aiTextureType_NORMALS;
|
||||
}
|
||||
else if (identifier == "_s" || identifier == "_spec" || identifier == "_specular" || identifier == "_specularmap")
|
||||
{
|
||||
textureType = aiTextureType_SPECULAR;
|
||||
}
|
||||
else if (identifier == "_l" || identifier == "_light" || identifier == "_lightmap" || identifier == "_occ" || identifier == "_occlusion")
|
||||
{
|
||||
textureType = aiTextureType_LIGHTMAP;
|
||||
}
|
||||
else if (identifier == "_disp" || identifier == "_displacement")
|
||||
{
|
||||
textureType = aiTextureType_DISPLACEMENT;
|
||||
}
|
||||
else
|
||||
{
|
||||
textureType = aiTextureType_DIFFUSE;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
textureType = aiTextureType_DIFFUSE;
|
||||
}
|
||||
}
|
||||
// Detect from texture unit name. This cannot be too broad as
|
||||
// authors might give names like "LightSaber" or "NormalNinja".
|
||||
else
|
||||
{
|
||||
string unitNameLower = Ogre::ToLower(textureUnitName);
|
||||
if (unitNameLower.find("normalmap") != string::npos)
|
||||
{
|
||||
textureType = aiTextureType_NORMALS;
|
||||
}
|
||||
else if (unitNameLower.find("specularmap") != string::npos)
|
||||
{
|
||||
textureType = aiTextureType_SPECULAR;
|
||||
}
|
||||
else if (unitNameLower.find("lightmap") != string::npos)
|
||||
{
|
||||
textureType = aiTextureType_LIGHTMAP;
|
||||
}
|
||||
else if (unitNameLower.find("displacementmap") != string::npos)
|
||||
{
|
||||
textureType = aiTextureType_DISPLACEMENT;
|
||||
}
|
||||
else
|
||||
{
|
||||
textureType = aiTextureType_DIFFUSE;
|
||||
}
|
||||
}
|
||||
}
|
||||
else if (linePart == partTextCoordSet)
|
||||
{
|
||||
ss >> uvCoord;
|
||||
}
|
||||
/// @todo Implement
|
||||
else if(linePart == partColorOp)
|
||||
{
|
||||
/*
|
||||
ss >> linePart;
|
||||
if("replace"==linePart)//I don't think, assimp has something for this...
|
||||
{
|
||||
}
|
||||
else if("modulate"==linePart)
|
||||
{
|
||||
//TODO: set value
|
||||
//material->AddProperty(aiTextureOp_Multiply)
|
||||
}
|
||||
*/
|
||||
}
|
||||
}
|
||||
|
||||
if (textureRef.empty())
|
||||
{
|
||||
ASSIMP_LOG_WARN("Texture reference is empty, ignoring texture_unit.");
|
||||
return false;
|
||||
}
|
||||
if (textureType == aiTextureType_NONE)
|
||||
{
|
||||
ASSIMP_LOG_WARN("Failed to detect texture type for '" + textureRef + "', ignoring texture_unit.");
|
||||
return false;
|
||||
}
|
||||
|
||||
unsigned int textureTypeIndex = m_textures[textureType];
|
||||
m_textures[textureType]++;
|
||||
|
||||
ASSIMP_LOG_DEBUG_F( " texture '", textureRef, "' type ", textureType,
|
||||
" index ", textureTypeIndex, " UV ", uvCoord);
|
||||
|
||||
aiString assimpTextureRef(textureRef);
|
||||
material->AddProperty(&assimpTextureRef, AI_MATKEY_TEXTURE(textureType, textureTypeIndex));
|
||||
material->AddProperty(&uvCoord, 1, AI_MATKEY_UVWSRC(textureType, textureTypeIndex));
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
} // Ogre
|
||||
} // Assimp
|
||||
|
||||
#endif // ASSIMP_BUILD_NO_OGRE_IMPORTER
|
||||
Loading…
Add table
Add a link
Reference in a new issue