genesis-3d_engine/Engine/app/graphicfeature/components/meshrenderobject.cc

/****************************************************************************
Copyright (c) 2011-2013,WebJet Business Division,CYOU
 
http://www.genesis-3d.com.cn

Permission is hereby granted, free of charge, to any person obtaining a copy
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****************************************************************************/
#include "stdneb.h"
#include "meshrenderobject.h"
#include "graphicsystem/GraphicSystem.h"
#include "graphicfeature/components/meshrendercomponent.h"
#include "graphicsystem/Camera/RenderPipeline/RenderData.h"
#include "appframework/actor.h"


namespace App
{
	using namespace  Graphic;
	__ImplementClass(MeshRenderObject,'MROB',AppRenderObject)

	MeshRenderObject::MeshRenderObject()
	{

	}
	MeshRenderObject::~MeshRenderObject()
	{

	}

	void MeshRenderObject::setLightParam()
	{
		GlobalMaterialParam* pGMP = Graphic::Material::GetGlobalMaterialParams();

		if ( IsUseLM() && IsLMHandleValid() )
		{
			// lightmap support
			const Math::float4& lmTexParam = getOwner()->GetLMTexParam();
			RenderBase::TextureHandle lmHandle = getOwner()->GetLMTextureHandle( 0 );
			pGMP->SetTextureParam(eGShaderTexLightmap, lmHandle);

			int lmMode = (int)getOwner()->GetLightmapMode();
			if (lmMode > 0)
			{
				// lightmap support
				RenderBase::TextureHandle lightmapHandle = getOwner()->GetLMTextureHandle( 1 );
				pGMP->SetTextureParam(eGShaderTexLightmap2, lightmapHandle);
			}

			// set lightmap params
			pGMP->SetVectorParam_X(eGShaderMatLMEnable, (float)(lmMode + 1.0f));
//#if __OSX__
//			//hack for ios.
//			//for android or pc: o.LightmapUV.xy = v.texcoord1.xy * g_LMTexParam.xy + g_LMTexParam.zw;// for android.
//			//for ios o.LightmapUV.x the same as android and pc.
//			//but o.LightmapUV.y not the same :  o.LightmapUV.y = 1 - (v.texcoord1.y * g_LMTexParam.y + g_LMTexParam.w);
//			//so........
//			pGMP->SetVectorParam(eGShaderMatLMTexParam, float4(lmTexParam.x(), -lmTexParam.y(), lmTexParam.z(), -lmTexParam.w() + 1.0f));
//#else
			pGMP->SetVectorParam(eGShaderMatLMTexParam, lmTexParam);
//#endif

		}
		else
		{
			pGMP->SetVectorParam(eGShaderMatLMEnable, float4(0.0f,0.0f,0.0f,0.0f));
			pGMP->SetVectorParam(eGShaderMatLMTexParam, float4(1.0f,1.0f,0.0f,0.0f));
		}
	}

	void MeshRenderObject::resetLightmap()
	{
		// reset lightmap params
		Graphic::Material::GetGlobalMaterialParams()->SetVectorParam(eGShaderMatLMEnable, float4(0.0f,0.0f,0.0f,0.0f));
	}

	void MeshRenderObject::Render(const Graphic::Renderable* renderable, Graphic::RenderPassType passType, const Graphic::Material* customizedMaterial)
	{
		n_assert(NULL != renderable);
		n_assert(mOwner);

		const RenderBase::PrimitiveHandle& priHandle = getOwner()->GetPrimitiveHandle();
		if (priHandle.IsValid())//( (customizedMat.isvalid() || mat.isvalid()) && priHandle.IsValid() )
		{		
			const Graphic::Material* material = (NULL == customizedMaterial) ? renderable->GetMaterial() : customizedMaterial;
			const RenderableType* rd = renderable->cast_fast<RenderableType>();
			setModelParam(renderable, passType, material);
			setLightParam();
			//render passType
			if (passType && material->GetTech()->IsTemplateTech())
			{
				rd->RenderForward(passType, priHandle, customizedMaterial);
			}
			else
			{
				rd->RenderForward(eForward, priHandle, customizedMaterial);
			}	
			resetLightmap();
		}
	}

	const Util::StringAtom& MeshRenderObject::GetMeshName() const
	{
		return getOwner()->GetMeshID();
	}

	inline bool MeshRenderObject::IsUseLM() const
	{
		return getOwner()->IsUseLM();
	}

	inline bool MeshRenderObject::IsLMHandleValid() const
	{
		return getOwner()->IsLMTextureHandleValid();
	}
}