//-------------------------------------------------------------------------------------------------------
void BloomPS::Process(IDriver& driver, const RenderTarget* const org, const RenderTarget* const scene, RenderTarget* const out, bool& isSwitch)
{
float Range = 2; //控制模糊度
//降采样
//driver.PushRenderTarget(m_pDownSimple_1);
//driver.Clear( IDriver::COLOR_BUFFER );
//QuadShader& qs = driver.GetShaderManage().GetShader<QuadShader>(ShaderManage::QuadShader);
//driver.Draw( *m_pRendBuffer, qs, scene->GetColorBuffer() );
//driver.PopRenderTarget();
//流明化
driver.PushRenderTarget(m_pDownSimple_1);
driver.Clear( IDriver::COLOR_BUFFER );
Luminance& le = driver.GetShaderManage().GetShader<Luminance>(ShaderManage::Luminance);
driver.Draw( *m_pRendBuffer, le, scene->GetColorBuffer() );
driver.PopRenderTarget();
//x方向模糊
driver.PushRenderTarget(m_pDownSimple_2);
driver.Clear( IDriver::COLOR_BUFFER );
Gaussian& gauss = driver.GetShaderManage().GetShader<Gaussian>(ShaderManage::Gaussian);
gauss.SetParamStep( vector2f( Range / m_pDownSimple_1->GetSize().m_x, 0.0f ) );
driver.Draw( *m_pRendBuffer, gauss, m_pDownSimple_1->GetColorBuffer() );
driver.PopRenderTarget();
//y方向模糊
driver.PushRenderTarget(m_pDownSimple_1);
driver.Clear( IDriver::COLOR_BUFFER );
gauss.SetParamStep( vector2f( 0.0f, Range / m_pDownSimple_2->GetSize().m_y ) );
driver.Draw( *m_pRendBuffer, gauss, m_pDownSimple_2->GetColorBuffer() );
driver.PopRenderTarget();
driver.PushRenderTarget( out );//如果画在了输出上面，则需要更换输出，下一个pe就用另外一张rt
isSwitch = true;
driver.Clear( IDriver::COLOR_BUFFER );
//if( 0 )
{
driver.EnableAlphaBlend(IDriver::BL_SRC_ALPHA, IDriver::BL_ONE_MINUS_SRC_ALPHA, IDriver::BL_SRC_ALPHA, IDriver::BL_ONE_MINUS_SRC_ALPHA );
Combine& ce = driver.GetShaderManage().GetShader<Combine>(ShaderManage::Combine);
ce.SetParamOrginial( scene->GetColorBuffer() );
ce.SetParamSecen( m_pDownSimple_1->GetColorBuffer() );
ce.SetParamOrginialWeight(1.0f);
ce.SetParamSecenWeight(0.0f);//was 0.75
driver.Draw( *m_pRendBuffer, ce, NULL );
}
//else
//{
// QuadShader& qs = driver.GetShaderManage().GetShader<QuadShader>(ShaderManage::QuadShader);
// driver.Draw( *m_pRendBuffer, qs, m_pDownSimple_1->GetColorBuffer() );
// //driver.Draw( *m_pRendBuffer, ui, org->GetDepthBuffer() );
//}
driver.PopRenderTarget( );
}
