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authorMarijn Tamis <[email protected]>2018-05-03 18:22:48 +0200
committerMarijn Tamis <[email protected]>2018-05-03 18:22:48 +0200
commitca32c59a58d37c1822e185a2d5f3d0d3e8943593 (patch)
treeb06b9eec03f34344ef8fc31aa147b2714d3962ee /NvCloth/samples/external/assimp-4.1.0/code/OgreMaterial.cpp
parentForced rename of platform folders in cmake dir. Git didn't pick this up before. (diff)
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NvCloth 1.1.4 Release. (24070740)
Diffstat (limited to 'NvCloth/samples/external/assimp-4.1.0/code/OgreMaterial.cpp')
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+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2017, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+
+
+#ifndef ASSIMP_BUILD_NO_OGRE_IMPORTER
+
+#include "OgreImporter.h"
+#include "TinyFormatter.h"
+#include <assimp/material.h>
+#include <assimp/scene.h>
+#include <assimp/DefaultLogger.hpp>
+#include "fast_atof.h"
+
+#include <vector>
+#include <sstream>
+#include <memory>
+
+using namespace std;
+
+namespace Assimp
+{
+namespace Ogre
+{
+
+static const string partComment = "//";
+static const string partBlockStart = "{";
+static const string partBlockEnd = "}";
+
+void OgreImporter::ReadMaterials(const std::string &pFile, Assimp::IOSystem *pIOHandler, aiScene *pScene, Mesh *mesh)
+{
+ std::vector<aiMaterial*> materials;
+
+ // Create materials that can be found and parsed via the IOSystem.
+ for (size_t i=0, len=mesh->NumSubMeshes(); i<len; ++i)
+ {
+ SubMesh *submesh = mesh->GetSubMesh(i);
+ if (submesh && !submesh->materialRef.empty())
+ {
+ aiMaterial *material = ReadMaterial(pFile, pIOHandler, submesh->materialRef);
+ if (material)
+ {
+ submesh->materialIndex = static_cast<int>(materials.size());
+ materials.push_back(material);
+ }
+ }
+ }
+
+ AssignMaterials(pScene, materials);
+}
+
+void OgreImporter::ReadMaterials(const std::string &pFile, Assimp::IOSystem *pIOHandler, aiScene *pScene, MeshXml *mesh)
+{
+ std::vector<aiMaterial*> materials;
+
+ // Create materials that can be found and parsed via the IOSystem.
+ for (size_t i=0, len=mesh->NumSubMeshes(); i<len; ++i)
+ {
+ SubMeshXml *submesh = mesh->GetSubMesh( static_cast<uint16_t>(i));
+ if (submesh && !submesh->materialRef.empty())
+ {
+ aiMaterial *material = ReadMaterial(pFile, pIOHandler, submesh->materialRef);
+ if (material)
+ {
+ submesh->materialIndex = static_cast<int>(materials.size());
+ materials.push_back(material);
+ }
+ }
+ }
+
+ AssignMaterials(pScene, materials);
+}
+
+void OgreImporter::AssignMaterials(aiScene *pScene, std::vector<aiMaterial*> &materials)
+{
+ pScene->mNumMaterials = static_cast<unsigned int>(materials.size());
+ if (pScene->mNumMaterials > 0)
+ {
+ pScene->mMaterials = new aiMaterial*[pScene->mNumMaterials];
+ for(size_t i=0;i<pScene->mNumMaterials; ++i) {
+ pScene->mMaterials[i] = materials[i];
+ }
+ }
+}
+
+aiMaterial* OgreImporter::ReadMaterial(const std::string &pFile, Assimp::IOSystem *pIOHandler, const std::string &materialName)
+{
+ if (materialName.empty()) {
+ return 0;
+ }
+
+ // Full reference and examples of Ogre Material Script
+ // can be found from http://www.ogre3d.org/docs/manual/manual_14.html
+
+ /*and here is another one:
+
+ import * from abstract_base_passes_depth.material
+ import * from abstract_base.material
+ import * from mat_shadow_caster.material
+ import * from mat_character_singlepass.material
+
+ material hero/hair/caster : mat_shadow_caster_skin_areject
+ {
+ set $diffuse_map "hero_hair_alpha_c.dds"
+ }
+
+ material hero/hair_alpha : mat_char_cns_singlepass_areject_4weights
+ {
+ set $diffuse_map "hero_hair_alpha_c.dds"
+ set $specular_map "hero_hair_alpha_s.dds"
+ set $normal_map "hero_hair_alpha_n.dds"
+ set $light_map "black_lightmap.dds"
+
+ set $shadow_caster_material "hero/hair/caster"
+ }
+ */
+
+ stringstream ss;
+
+ // Scope for scopre_ptr auto release
+ {
+ /* There are three .material options in priority order:
+ 1) File with the material name (materialName)
+ 2) File with the mesh files base name (pFile)
+ 3) Optional user defined material library file (m_userDefinedMaterialLibFile) */
+ std::vector<string> potentialFiles;
+ potentialFiles.push_back(materialName + ".material");
+ potentialFiles.push_back(pFile.substr(0, pFile.rfind(".mesh")) + ".material");
+ if (!m_userDefinedMaterialLibFile.empty())
+ potentialFiles.push_back(m_userDefinedMaterialLibFile);
+
+ IOStream *materialFile = 0;
+ for(size_t i=0; i<potentialFiles.size(); ++i)
+ {
+ materialFile = pIOHandler->Open(potentialFiles[i]);
+ if (materialFile) {
+ break;
+ }
+ DefaultLogger::get()->debug(Formatter::format() << "Source file for material '" << materialName << "' " << potentialFiles[i] << " does not exist");
+ }
+ if (!materialFile)
+ {
+ DefaultLogger::get()->error(Formatter::format() << "Failed to find source file for material '" << materialName << "'");
+ return 0;
+ }
+
+ std::unique_ptr<IOStream> stream(materialFile);
+ if (stream->FileSize() == 0)
+ {
+ DefaultLogger::get()->warn(Formatter::format() << "Source file for material '" << materialName << "' is empty (size is 0 bytes)");
+ return 0;
+ }
+
+ // Read bytes
+ vector<char> data(stream->FileSize());
+ stream->Read(&data[0], stream->FileSize(), 1);
+
+ // Convert to UTF-8 and terminate the string for ss
+ BaseImporter::ConvertToUTF8(data);
+ data.push_back('\0');
+
+ ss << &data[0];
+ }
+
+ DefaultLogger::get()->debug("Reading material '" + materialName + "'");
+
+ aiMaterial *material = new aiMaterial();
+ m_textures.clear();
+
+ aiString ts(materialName);
+ material->AddProperty(&ts, AI_MATKEY_NAME);
+
+ // The stringstream will push words from a line until newline.
+ // It will also trim whitespace from line start and between words.
+ string linePart;
+ ss >> linePart;
+
+ const string partMaterial = "material";
+ const string partTechnique = "technique";
+
+ while(!ss.eof())
+ {
+ // Skip commented lines
+ if (linePart == partComment)
+ {
+ NextAfterNewLine(ss, linePart);
+ continue;
+ }
+ if (linePart != partMaterial)
+ {
+ ss >> linePart;
+ continue;
+ }
+
+ ss >> linePart;
+ if (linePart != materialName)
+ {
+ //DefaultLogger::get()->debug(Formatter::format() << "Found material '" << linePart << "' that does not match at index " << ss.tellg());
+ ss >> linePart;
+ continue;
+ }
+
+ NextAfterNewLine(ss, linePart);
+ if (linePart != partBlockStart)
+ {
+ DefaultLogger::get()->error(Formatter::format() << "Invalid material: block start missing near index " << ss.tellg());
+ return material;
+ }
+
+ DefaultLogger::get()->debug("material '" + materialName + "'");
+
+ while(linePart != partBlockEnd)
+ {
+ // Proceed to the first technique
+ ss >> linePart;
+
+ if (linePart == partTechnique)
+ {
+ string techniqueName = SkipLine(ss);
+ ReadTechnique(Trim(techniqueName), ss, material);
+ }
+
+ // Read information from a custom material
+ /** @todo This "set $x y" does not seem to be a official Ogre material system feature.
+ Materials can inherit other materials and override texture units by using the (unique)
+ parent texture unit name in your cloned material.
+ This is not yet supported and below code is probably some hack from the original
+ author of this Ogre importer. Should be removed? */
+ if (linePart=="set")
+ {
+ ss >> linePart;
+ if (linePart=="$specular")//todo load this values:
+ {
+ }
+ else if (linePart=="$diffuse")
+ {
+ }
+ else if (linePart=="$ambient")
+ {
+ }
+ else if (linePart=="$colormap")
+ {
+ ss >> linePart;
+ aiString ts(linePart);
+ material->AddProperty(&ts, AI_MATKEY_TEXTURE(aiTextureType_DIFFUSE, 0));
+ }
+ else if (linePart=="$normalmap")
+ {
+ ss >> linePart;
+ aiString ts(linePart);
+ material->AddProperty(&ts, AI_MATKEY_TEXTURE(aiTextureType_NORMALS, 0));
+ }
+ else if (linePart=="$shininess_strength")
+ {
+ ss >> linePart;
+ float Shininess = fast_atof(linePart.c_str());
+ material->AddProperty(&Shininess, 1, AI_MATKEY_SHININESS_STRENGTH);
+ }
+ else if (linePart=="$shininess_exponent")
+ {
+ ss >> linePart;
+ float Shininess = fast_atof(linePart.c_str());
+ material->AddProperty(&Shininess, 1, AI_MATKEY_SHININESS);
+ }
+ //Properties from Venetica:
+ else if (linePart=="$diffuse_map")
+ {
+ ss >> linePart;
+ if (linePart[0] == '"')// "file" -> file
+ linePart = linePart.substr(1, linePart.size()-2);
+ aiString ts(linePart);
+ material->AddProperty(&ts, AI_MATKEY_TEXTURE(aiTextureType_DIFFUSE, 0));
+ }
+ else if (linePart=="$specular_map")
+ {
+ ss >> linePart;
+ if (linePart[0] == '"')// "file" -> file
+ linePart = linePart.substr(1, linePart.size()-2);
+ aiString ts(linePart);
+ material->AddProperty(&ts, AI_MATKEY_TEXTURE(aiTextureType_SHININESS, 0));
+ }
+ else if (linePart=="$normal_map")
+ {
+ ss >> linePart;
+ if (linePart[0]=='"')// "file" -> file
+ linePart = linePart.substr(1, linePart.size()-2);
+ aiString ts(linePart);
+ material->AddProperty(&ts, AI_MATKEY_TEXTURE(aiTextureType_NORMALS, 0));
+ }
+ else if (linePart=="$light_map")
+ {
+ ss >> linePart;
+ if (linePart[0]=='"') {
+ linePart = linePart.substr(1, linePart.size() - 2);
+ }
+ aiString ts(linePart);
+ material->AddProperty(&ts, AI_MATKEY_TEXTURE(aiTextureType_LIGHTMAP, 0));
+ }
+ }
+ }
+ ss >> linePart;
+ }
+
+ return material;
+}
+
+bool OgreImporter::ReadTechnique(const std::string &techniqueName, stringstream &ss, aiMaterial *material)
+{
+ string linePart;
+ ss >> linePart;
+
+ if (linePart != partBlockStart)
+ {
+ DefaultLogger::get()->error(Formatter::format() << "Invalid material: Technique block start missing near index " << ss.tellg());
+ return false;
+ }
+
+ DefaultLogger::get()->debug(" technique '" + techniqueName + "'");
+
+ const string partPass = "pass";
+
+ while(linePart != partBlockEnd)
+ {
+ ss >> linePart;
+
+ // Skip commented lines
+ if (linePart == partComment)
+ {
+ SkipLine(ss);
+ continue;
+ }
+
+ /// @todo Techniques have other attributes than just passes.
+ if (linePart == partPass)
+ {
+ string passName = SkipLine(ss);
+ ReadPass(Trim(passName), ss, material);
+ }
+ }
+ return true;
+}
+
+bool OgreImporter::ReadPass(const std::string &passName, stringstream &ss, aiMaterial *material)
+{
+ string linePart;
+ ss >> linePart;
+
+ if (linePart != partBlockStart)
+ {
+ DefaultLogger::get()->error(Formatter::format() << "Invalid material: Pass block start missing near index " << ss.tellg());
+ return false;
+ }
+
+ DefaultLogger::get()->debug(" pass '" + passName + "'");
+
+ const string partAmbient = "ambient";
+ const string partDiffuse = "diffuse";
+ const string partSpecular = "specular";
+ const string partEmissive = "emissive";
+ const string partTextureUnit = "texture_unit";
+
+ 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);
+
+ DefaultLogger::get()->debug(Formatter::format() << " " << 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)
+ {
+ DefaultLogger::get()->error(Formatter::format() << "Invalid material: Texture unit block start missing near index " << ss.tellg());
+ return false;
+ }
+
+ DefaultLogger::get()->debug(" 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));
+ DefaultLogger::get()->debug(Formatter::format() << "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())
+ {
+ DefaultLogger::get()->warn("Texture reference is empty, ignoring texture_unit.");
+ return false;
+ }
+ if (textureType == aiTextureType_NONE)
+ {
+ DefaultLogger::get()->warn("Failed to detect texture type for '" + textureRef + "', ignoring texture_unit.");
+ return false;
+ }
+
+ unsigned int textureTypeIndex = m_textures[textureType];
+ m_textures[textureType]++;
+
+ DefaultLogger::get()->debug(Formatter::format() << " 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