Material.cpp
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Material.cpp
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	#include <echo/Graphics/Material.h>
	#include <echo/Graphics/RenderPass.h>
	#include <echo/Graphics/MultipassRenderable.h>
	#include <echo/Graphics/Texture.h>

	namespace Echo
	{
	Material::Material() : Resource(true), mCurrentPass(0)
	{
	}

	Material::Material(const Material& other)
	: Resource(true),
	mPasses(other.mPasses),
	mCurrentPass(other.mCurrentPass)
	{
	}

	Material::~Material()
	{
	}

	shared_ptr< Material > Material::Clone() const
	{
	return make_shared<Material>(*this);
	}

	void Material::SetToDefaultMaterial()
	{
	mPasses.clear();
	mPasses.push_back(RenderPass());
	}

	void Material::SetTexture(shared_ptr<Texture> surface)
	{
	if(mPasses.empty())
	AddPass(RenderPass());
	mPasses[0].SetTexture(surface);
	}

	shared_ptr<Texture> Material::GetTexture() const
	{
	if(mPasses.empty())
	return shared_ptr<Texture>();
	return mPasses[0].GetTexture();
	}

	RenderPass* Material::GetPass(u32 passIndex)
	{
	if(passIndex < mPasses.size())
	return &(mPasses[passIndex]);
	return 0;
	}

	void Material::AddPass(const RenderPass& pass)
	{
	mPasses.push_back(pass);
	}

	void Material::SetPass(const RenderPass& pass, u32 passIndex)
	{
	if(passIndex < mPasses.size())
	{
	mPasses[passIndex] = pass;
	return;
	}
	AddPass(pass);
	}

	void Material::ApplyAndRender(RenderContext& renderContext, MultipassRenderable& renderable, const Matrix4& world, const Matrix4& worldView, Colour compoundDiffuse)
	{
	//Loop through the passes and apply each material followed by executing the render
	size_t numPasses = mPasses.size();
	for(size_t p = 0; p < numPasses; ++p)
	{
	RenderPass& pass = mPasses[p];
	if(!pass.GetActive())
	{
	continue;
	}
	mCurrentPass = &pass;
	pass.Apply(renderContext, world, worldView, compoundDiffuse);
	renderable.Render(renderContext,pass,compoundDiffuse);
	mCurrentPass = 0;
	}
	}

	Size Material::GetNumberOfPasses() const
	{
	return mPasses.size();
	}

	bool Material::_Unload()
	{
	mPasses.clear();
	return true;
	}

	Size Material::OnRequestMemoryRelease()
	{
	return 0;
	}
	}

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