Method PopulatePerFrameVSData

trinity/Eve/EveSpaceScene.cpp:3011–3064

void EveSpaceScene::PopulatePerFrameVSData( PerFrameVSData& data, Tr2RenderContext& renderContext )
{
	// column_major for shaders
	data.ViewMat = Transpose( Tr2Renderer::GetViewTransform() );
	Matrix proj = Tr2Renderer::GetReversedDepthProjectionTransform();
	data.ProjectionMat = Transpose( proj );
	Matrix viewProject( Tr2Renderer::GetViewTransform() * proj );
	data.ViewProjectionMat = Transpose( viewProject );
	// attention: need the transposed, but shader also needs column_major, so it is transpose(transpose(m)) == m
	data.ViewInverseTransposeMat = Tr2Renderer::GetInverseViewTransform();

	Matrix lastProjection = m_projectionLast * m_jitterMatrix;
	data.ViewProjectionLast = Transpose( m_viewLast * lastProjection );
	data.ViewLast = Transpose( m_viewLast );
	data.ProjLast = Transpose( lastProjection );

	// each scene has a nebula and that can be rotated and inverted (via scaling)
	data.EnvMapRotationMat = Transpose( RotationMatrix( m_envMapRotation ) );

	// sun data
	data.Sun = m_sunData;
	data.Sun.DiffuseColor = m_currentSunColor;

	// make sure whatever direction we get in here, it is normalized! And inverted: Shaders work with direction to light...
	data.Sun.DirWorld = -Normalize( data.Sun.DirWorld );

	// resolution of rendertarget
	data.TargetResolution.x = (float)renderContext.m_esm.GetRenderTargetWidth();
	data.TargetResolution.y = (float)renderContext.m_esm.GetRenderTargetHeight();

	// fov in both ways: width (x) and (height (y)
	data.FovXY.y = EveCamera::CalculateFovFromProjection( Tr2Renderer::GetProjectionTransform() );
	data.FovXY.x = data.FovXY.y * Tr2Renderer::GetAspectRatio();

	float distance = m_fogEnd - m_fogStart;
	if( fabsf( distance ) < 1e-5f )
	{
		distance = 1e-5f;
	}
	data.FogFactors = Vector3( m_fogEnd / distance, 1.f / distance, m_fogMax );

	// Derived from SetupViewport in Tr2Renderer.cpp
	const Tr2Viewport& deviceViewport = renderContext.m_esm.GetDeviceViewport();
	const TriViewport& viewport = renderContext.m_esm.GetViewport();
	data.ViewportAdjustment.x = viewport.x < 0 ? -1.0f : 1.0f;
	data.ViewportAdjustment.y = viewport.y + viewport.height > (int)renderContext.m_esm.GetRenderTargetHeight() ? -1.0f : 1.0f;
	data.ViewportAdjustment.z = deviceViewport.m_width / viewport.width;
	data.ViewportAdjustment.w = deviceViewport.m_height / viewport.height;
	data.Time = Tr2Renderer::GetAnimationTime();
	data.Upscaling = m_upscalingAmount;

	data.ViewportSize.x = renderContext.m_esm.GetDeviceViewport().m_width;
	data.ViewportSize.y = renderContext.m_esm.GetDeviceViewport().m_height;
}

void EveSpaceScene::PopulatePerFramePSData( PerFramePSData& data, Tr2RenderContext& renderContext )
{