OgreMaterialProperties::OgreMaterialProperties(const QString &name, Foundation::AssetPtr asset) :
material_(0)
{
// Hack: tell the materialresource that shadows are medium quality, so that it won't create extra shadow texture units
material_ = new OgreRenderer::OgreMaterialResource(asset->GetId(), OgreRenderer::Shadows_Low, asset);
if (material_)
if (material_->IsValid())
CreateProperties();
setObjectName(name);
}
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;
}