示例#1
0
    bool OgreMeshResource::SetData(Foundation::AssetPtr source)
    {
        if (!source)
        {
            OgreRenderingModule::LogError("Null source asset data pointer");     
            return false;
        }
        if (!source->GetSize())
        {
            OgreRenderingModule::LogError("Zero sized mesh asset");     
            return false;
        }
                
        try
        {
            if (ogre_mesh_.isNull())
            {   
                ogre_mesh_ = Ogre::MeshManager::getSingleton().createManual(
                    id_, Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
                if (ogre_mesh_.isNull())
                {
                    OgreRenderingModule::LogError("Failed to create mesh " + id_);
                    return false; 
                }   
                ogre_mesh_->setAutoBuildEdgeLists(false);
            }

            Ogre::DataStreamPtr stream(new Ogre::MemoryDataStream((void*)source->GetData(), source->GetSize(), false));
            Ogre::MeshSerializer serializer;
            serializer.importMesh(stream, ogre_mesh_.getPointer());
            
            // Generate tangents to mesh
            try
            {
                unsigned short src, dest;
                if (!ogre_mesh_->suggestTangentVectorBuildParams(Ogre::VES_TANGENT, src, dest))
                    ogre_mesh_->buildTangentVectors(Ogre::VES_TANGENT, src, dest);
            }
            catch (...) {}
            
            // Generate extremity points to submeshes, 1 should be enough
            try
            {
                for(uint i = 0; i < ogre_mesh_->getNumSubMeshes(); ++i)
                {
                    Ogre::SubMesh *smesh = ogre_mesh_->getSubMesh(i);
                    if (smesh)
                        smesh->generateExtremes(1);
                }
            }
            catch (...) {}
            
            // Assign default materials that won't complain
            original_materials_.clear();
            for (uint i = 0; i < ogre_mesh_->getNumSubMeshes(); ++i)
            {
                Ogre::SubMesh* submesh = ogre_mesh_->getSubMesh(i);
                if (submesh)
                {
                    original_materials_.push_back(submesh->getMaterialName());
                    submesh->setMaterialName("UnlitTextured");
                }
            }
            
        }
        catch (Ogre::Exception &e)
        {
            OgreRenderingModule::LogError("Failed to create mesh " + id_ + ": " + std::string(e.what()));
            RemoveMesh();
            return false;
        }

        OgreRenderingModule::LogDebug("Ogre mesh " + id_ + " created");
        return true;
    }
bool OgreMaterialResource::SetData(Foundation::AssetPtr source)
{
    // Remove old material if any
    RemoveMaterial();
    references_.clear();
    original_textures_.clear();

    Ogre::MaterialManager& matmgr = Ogre::MaterialManager::getSingleton();

    OgreRenderingModule::LogDebug("Parsing material " + source->GetId());

    if (!source)
    {
        OgreRenderingModule::LogError("Null source asset data pointer");
        return false;
    }
    if (!source->GetSize())
    {
        OgreRenderingModule::LogError("Zero sized material asset");
        return false;
    }

    Ogre::DataStreamPtr data = Ogre::DataStreamPtr(new Ogre::MemoryDataStream(const_cast<u8 *>(source->GetData()), source->GetSize()));

    static int tempname_count = 0;
    tempname_count++;
    std::string tempname = "TempMat" + ToString<int>(tempname_count);

    try
    {
        int num_materials = 0;
        int brace_level = 0;
        bool skip_until_next = false;
        int skip_brace_level = 0;
        // Parsed/modified material script
        std::ostringstream output;


        while (!data->eof())
        {
            Ogre::String line = data->getLine();

            // Skip empty lines & comments
            if ((line.length()) && (line.substr(0, 2) != "//"))
            {
                // Process opening/closing braces
                if (!ResourceHandler::ProcessBraces(line, brace_level))
                {
                    // If not a brace and on level 0, it should be a new material; replace name
                    if ((brace_level == 0) && (line.substr(0, 8) == "material"))
                    {
                        if (num_materials == 0)
                        {
                            line = "material " + tempname;
                            ++num_materials;
                        }
                        else
                        {
                            OgreRenderingModule::LogWarning("More than one material defined in material asset " + source->GetId() + " - only first one supported");
                            break;
                        }
                    }
                    else
                    {
                        // Check for textures
                        if ((line.substr(0, 8) == "texture ") && (line.length() > 8))
                        {
                            std::string tex_name = line.substr(8);
                            // Note: we assume all texture references are asset based. ResourceHandler checks later whether this is true,
                            // before requesting the reference
                            references_.push_back(Foundation::ResourceReference(tex_name, OgreTextureResource::GetTypeStatic()));
                            original_textures_.push_back(tex_name);
                            // Replace any / with \ in the material, then change the texture names back later, so that Ogre does not go nuts
                            ReplaceCharInplace(line, '/', '\\');
                            ReplaceCharInplace(line, ':', '@');
                        }
                    }

                    // Write line to the modified copy
                    if (!skip_until_next)
                        output << line << std::endl;
                }
                else
                {
                    // Write line to the modified copy
                    if (!skip_until_next)
                        output << line << std::endl;
                    if (brace_level <= skip_brace_level)
                        skip_until_next = false;
                }
            }
        }

        std::string output_str = output.str();
        Ogre::DataStreamPtr modified_data = Ogre::DataStreamPtr(new Ogre::MemoryDataStream((u8 *)(&output_str[0]), output_str.size()));

        matmgr.parseScript(modified_data, Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
        Ogre::MaterialPtr tempmat;
        tempmat = matmgr.getByName(tempname);
        if (tempmat.isNull())
        {
            OgreRenderingModule::LogWarning(std::string("Failed to create an Ogre material from material asset ") +
                                            source->GetId());

            return false;
        }
        if(!tempmat->getNumTechniques())
        {
            OgreRenderingModule::LogWarning("Failed to create an Ogre material from material asset "  +
                                            source->GetId());
            return false;
        }

        ogre_material_ = tempmat->clone(id_);
        tempmat.setNull();
        matmgr.remove(tempname);
        if (ogre_material_.isNull())
        {
            OgreRenderingModule::LogWarning("Failed to create an Ogre material from material asset "  +
                                            source->GetId());
            return false;
        }

        // Now go through all the texturenames and restore \ back to / and @ to :
        Ogre::Material::TechniqueIterator iter = ogre_material_->getTechniqueIterator();
        while (iter.hasMoreElements())
        {
            Ogre::Technique *tech = iter.getNext();
            Ogre::Technique::PassIterator passIter = tech->getPassIterator();
            while (passIter.hasMoreElements())
            {
                Ogre::Pass *pass = passIter.getNext();
                Ogre::Pass::TextureUnitStateIterator texIter = pass->getTextureUnitStateIterator();
                while (texIter.hasMoreElements())
                {
                    Ogre::TextureUnitState *texUnit = texIter.getNext();
                    std::string texname = texUnit->getTextureName();
                    if (texname.find('\\') != std::string::npos)
                    {
                        ReplaceCharInplace(texname, '\\', '/');
                        ReplaceCharInplace(texname, '@', ':');
                        texUnit->setTextureName(texname);
                    }
                }
            }
        }

        //workaround: if receives shadows, check the amount of shadowmaps. If only 1 specified, add 2 more to support 3 shadowmaps
        if(ogre_material_->getReceiveShadows() && shadowquality_ == Shadows_High && ogre_material_->getNumTechniques() > 0)
        {
            Ogre::Technique *tech = ogre_material_->getTechnique(0);
            if(tech)
            {
                Ogre::Technique::PassIterator passiterator = tech->getPassIterator();
                while(passiterator.hasMoreElements())
                {
                    Ogre::Pass* pass = passiterator.getNext();
                    Ogre::Pass::TextureUnitStateIterator texiterator = pass->getTextureUnitStateIterator();
                    int shadowmaps = 0;
                    while(texiterator.hasMoreElements())
                    {
                        Ogre::TextureUnitState* state = texiterator.getNext();
                        if(state->getContentType() == Ogre::TextureUnitState::CONTENT_SHADOW)
                        {
                            shadowmaps++;
                        }
                    }
                    if(shadowmaps>0 && shadowmaps<3)
                    {
                        Ogre::TextureUnitState* sm2 = pass->createTextureUnitState();
                        sm2->setContentType(Ogre::TextureUnitState::CONTENT_SHADOW);

                        Ogre::TextureUnitState* sm3 = pass->createTextureUnitState();
                        sm3->setContentType(Ogre::TextureUnitState::CONTENT_SHADOW);
                    }
                }
            }

        }

    } catch (Ogre::Exception &e)
    {
        OgreRenderingModule::LogWarning(e.what());
        OgreRenderingModule::LogWarning("Failed to parse Ogre material " + source->GetId() + ".");
        try
        {
            if (!matmgr.getByName(tempname).isNull())
                Ogre::MaterialManager::getSingleton().remove(tempname);
        }
        catch (...) {}

        return false;
    }
    return true;
}