Method InitRenderPass

trinity/Tr2ReflectionProbe.cpp:99–140

void Tr2ReflectionProbe::InitRenderPass( Tr2RenderContext& renderContext )
{
	if( !m_lockPosition )
	{
		m_position = Tr2Renderer::GetViewPosition();
	}

	renderContext.m_esm.PushViewport();
	Tr2Renderer::PushViewTransform();
	Tr2Renderer::PushProjection();
	renderContext.m_esm.PushRenderTarget();
	renderContext.m_esm.PushDepthStencilBuffer();

	renderContext.m_esm.SetViewport( m_intermediateSize, m_intermediateSize, 0, 0, 0, 1 );

	// Square projection matrix, with near and far clip planes from the current projection
	Matrix newProjection = IdentityMatrix();
	const Matrix& currentProjection = Tr2Renderer::GetProjectionTransform();
	newProjection.m[2][2] = currentProjection.m[2][2];
	newProjection.m[2][3] = -1.0f;
	newProjection.m[3][2] = currentProjection.m[3][2];
	newProjection.m[3][3] = 0.0f;

	Tr2Renderer::SetProjectionTransform( newProjection );

	// We need to invert cull-mode because of the left-handed coordinates of the cube rendertarget
	m_prevCullInversion = renderContext.m_esm.IsCullModeInverted();
	renderContext.m_esm.SetInvertedCullMode( true );

#if !TRINITY_PLATFORM_SUPPORTS_RENDER_PASS_HINTS
	{
		GPU_REGION( renderContext, "Reflection Depth Clear" );

		for( int i = GetStartFace(); i < GetEndFace(); i++ )
		{
			renderContext.SetRenderTarget( *m_renderTargets[i], 0 );
			renderContext.m_esm.SetDepthStencilBuffer( m_stencilMaps[i] );
			CR( renderContext.Clear( CLEARFLAGS_ZBUFFER | CLEARFLAGS_TARGET, 0, 0, 0 ) );
		}
	}
#endif
}

Tr2TextureAL Tr2ReflectionProbe::GetDepthBuffer( unsigned face )
{