public PreviousFrameData GetMotionDataForCamera(Camera camera, CameraData camData)
{
// Get MotionData
PreviousFrameData motionData;
if (!m_CameraFrameData.TryGetValue(camera, out motionData))
{
motionData = new PreviousFrameData();
m_CameraFrameData.Add(camera, motionData);
}
// Calculate motion data
CalculateTime();
UpdateMotionData(camera, camData, motionData);
return(motionData);
}
void UpdateMotionData(Camera camera, CameraData cameraData, PreviousFrameData motionData)
{
// The actual projection matrix used in shaders is actually massaged a bit to work across all platforms
// (different Z value ranges etc.)
// A camera could be rendered multiple times per frame, only updates the previous view proj & pos if needed
#if ENABLE_VR && ENABLE_XR_MODULE
if (cameraData.xr.enabled)
{
var gpuVP0 = GL.GetGPUProjectionMatrix(cameraData.GetProjectionMatrix(0), true) * cameraData.GetViewMatrix(0);
var gpuVP1 = GL.GetGPUProjectionMatrix(cameraData.GetProjectionMatrix(1), true) * cameraData.GetViewMatrix(1);
// Last frame data
if (motionData.lastFrameActive != Time.frameCount)
{
bool firstFrame = motionData.isFirstFrame;
var prevViewProjStereo = motionData.previousViewProjectionMatrixStereo;
prevViewProjStereo[0] = firstFrame ? gpuVP0 : prevViewProjStereo[0];
prevViewProjStereo[1] = firstFrame ? gpuVP1 : prevViewProjStereo[1];
motionData.isFirstFrame = false;
}
// Current frame data
var viewProjStereo = motionData.viewProjectionMatrixStereo;
viewProjStereo[0] = gpuVP0;
viewProjStereo[1] = gpuVP1;
}
else
#endif
{
var gpuProj = GL.GetGPUProjectionMatrix(camera.projectionMatrix, true); // Had to change this from 'false'
var gpuView = camera.worldToCameraMatrix;
var gpuVP = gpuProj * gpuView;
// Last frame data
if (motionData.lastFrameActive != Time.frameCount)
{
motionData.previousViewProjectionMatrix = motionData.isFirstFrame ? gpuVP : motionData.viewProjectionMatrix;
motionData.isFirstFrame = false;
}
// Current frame data
motionData.viewProjectionMatrix = gpuVP;
}
motionData.lastFrameActive = Time.frameCount;
}
internal void Setup(RTHandle color, RTHandle depth, PreviousFrameData frameData)
{
m_MotionData = frameData;
m_Color = color;
m_Depth = depth;
}
internal void Setup(PreviousFrameData frameData)
{
m_MotionData = frameData;
}
