// ------------------------------------------------------------------------------------------------
bool C4DImporter::ReadShader(aiMaterial* out, _melange_::BaseShader* shader)
{
// based on Melange sample code (C4DImportExport.cpp)
while(shader) {
if(shader->GetType() == Xlayer) {
BaseContainer* container = shader->GetDataInstance();
GeData blend = container->GetData(SLA_LAYER_BLEND);
iBlendDataType* blend_list = reinterpret_cast<iBlendDataType*>(blend.GetCustomDataType(CUSTOMDATA_BLEND_LIST));
if (!blend_list)
{
LogWarn("ignoring XLayer shader: no blend list given");
continue;
}
LayerShaderLayer *lsl = dynamic_cast<LayerShaderLayer*>(blend_list->m_BlendLayers.GetObject(0));
// Ignore the actual layer blending - models for real-time rendering should not
// use them in a non-trivial way. Just try to find textures that we can apply
// to the model.
while (lsl)
{
if (lsl->GetType() == TypeFolder)
{
BlendFolder* const folder = dynamic_cast<BlendFolder*>(lsl);
LayerShaderLayer *subLsl = dynamic_cast<LayerShaderLayer*>(folder->m_Children.GetObject(0));
while (subLsl)
{
if (subLsl->GetType() == TypeShader) {
BlendShader* const shader = dynamic_cast<BlendShader*>(subLsl);
if(ReadShader(out, static_cast<BaseShader*>(shader->m_pLink->GetLink()))) {
return true;
}
}
subLsl = subLsl->GetNext();
}
}
else if (lsl->GetType() == TypeShader) {
BlendShader* const shader = dynamic_cast<BlendShader*>(lsl);
if(ReadShader(out, static_cast<BaseShader*>(shader->m_pLink->GetLink()))) {
return true;
}
}
lsl = lsl->GetNext();
}
}
else if ( shader->GetType() == Xbitmap )
{
aiString path;
shader->GetFileName().GetString().GetCString(path.data, MAXLEN-1);
path.length = ::strlen(path.data);
out->AddProperty(&path, AI_MATKEY_TEXTURE_DIFFUSE(0));
return true;
}
else {
LogWarn("ignoring shader type: " + std::string(GetObjectTypeName(shader->GetType())));
}
shader = shader->GetNext();
}
return false;
}
