bool Material::parseTechnique(Properties* techniqueProperties)
{
auto technique = Technique::create(this);
_techniques.pushBack(technique);
// first one is the default one
if (!_currentTechnique)
_currentTechnique = technique;
// name
technique->setName(techniqueProperties->getId());
// passes
auto space = techniqueProperties->getNextNamespace();
while (space)
{
const char* name = space->getNamespace();
if (strcmp(name, "pass") == 0)
{
parsePass(technique, space);
}
else if (strcmp(name, "renderState") == 0)
{
parseRenderState(this, space);
}
space = techniqueProperties->getNextNamespace();
}
return true;
}
Ref<Material> Material::read(RenderContext& context, const std::string& name)
{
initializeMaps();
if (Material* cached = context.cache().find<Material>(name))
return cached;
const Path path = context.cache().findFile(name);
if (path.isEmpty())
{
logError("Failed to find material %s", name.c_str());
return nullptr;
}
pugi::xml_document document;
const pugi::xml_parse_result result = document.load_file(path.name().c_str());
if (!result)
{
logError("Failed to load material %s: %s",
name.c_str(),
result.description());
return nullptr;
}
pugi::xml_node root = document.child("material");
if (!root || root.attribute("version").as_uint() != MATERIAL_XML_VERSION)
{
logError("Material file format mismatch in %s", name.c_str());
return nullptr;
}
Ref<Material> material = Material::create(ResourceInfo(context.cache(), name, path), context);
for (auto pn : root.children("pass"))
{
const std::string phaseName(pn.attribute("phase").value());
if (!phaseMap.hasKey(phaseName))
{
logError("Invalid render phase %s in material %s",
phaseName.c_str(),
name.c_str());
return nullptr;
}
if (!parsePass(context, material->pass(phaseMap[phaseName]), pn))
{
logError("Failed to parse pass for material %s", name.c_str());
return nullptr;
}
}
return material;
}