void Drawable2D::UpdateMaterial()
{
// Delay the material update
if (materialUpdatePending_)
return;
Material* material = batches_[0].material_;
assert(material);
// If we are using the default created material, we can update blend mode. Otherwise must respect what is set in the material
if (!material_)
{
Technique* technique = material->GetTechnique(0);
Pass* pass = technique->GetPass(PASS_ALPHA);
if (pass)
pass->SetBlendMode(blendMode_);
}
// Update diffuse texture from sprite
if (sprite_)
{
Texture2D* texture = sprite_->GetTexture();
material->SetTexture(TU_DIFFUSE, texture);
}
}
void Material::CheckOcclusion()
{
// Determine occlusion by checking the base pass of each technique
occlusion_ = false;
for (unsigned i = 0; i < techniques_.Size(); ++i)
{
Technique* tech = techniques_[i].technique_;
if (tech)
{
Pass* pass = tech->GetPass(PASS_BASE);
if (pass && pass->GetDepthWrite() && !pass->GetAlphaMask())
occlusion_ = true;
}
}
}
Pass* Material::GetPass(unsigned index, StringHash passType) const
{
Technique* tech = index < techniques_.Size() ? techniques_[index].technique_ : (Technique*)0;
return tech ? tech->GetPass(passType) : 0;
}
