/// <inheritdoc/>
public override void Reset()
{
base.Reset();
// Initialize the helper methods.
_helperULR = GeneralToolkit.GetOrAddComponent <Helper_ULR>(gameObject);
_helperULR.Reset();
}
/// <summary>
/// Updates the values of the blending materials used by the helper ULR classes of objects rendering to this camera.
/// </summary>
public void UpdateValuesOnPreRender()
{
// Compute the increment and starting index based on whether the attached camera is stereo.
int increment = _isStereo ? 2 : 1;
int renderedObjIndex = (_isStereo && _attachedCam.stereoActiveEye == Camera.MonoOrStereoscopicEye.Right) ? 1 : 0;
// Loop over all the helper ULR classes.
while (renderedObjIndex < _helperULRList.Count)
{
// If this helper ULR class is null, remove it from the list and skip.
Helper_ULR helperULR = _helperULRList[renderedObjIndex];
if (helperULR == null)
{
_helperULRList.RemoveAt(renderedObjIndex);
}
else
{
// Otherwise, if its blending material is also not null, update this material's properties.
Material currentBlendingMat = helperULR.currentBlendingMaterial;
if (currentBlendingMat != null)
{
// Compute the number of vertices to process this frame, based on the current framerate.
Vector3 vertexFrontIndexAndCountPerFrame = _vertexFrontIndexAndCountPerFrameList[renderedObjIndex];
int blendFieldFrontVertexIndex = (int)vertexFrontIndexAndCountPerFrame.x;
int blendFieldVertexCountPerFrame = (int)vertexFrontIndexAndCountPerFrame.y;
int totalVertexCount = (int)vertexFrontIndexAndCountPerFrame.z;
float minVertexCountForTotalRendering = totalVertexCount * 1f / helperULR.maxFrameCountForProcessing;
blendFieldFrontVertexIndex = (blendFieldFrontVertexIndex + blendFieldVertexCountPerFrame) % totalVertexCount;
float blendFieldFrameRatio = 1f / (helperULR.targetFramerate * Time.smoothDeltaTime);
blendFieldVertexCountPerFrame = Mathf.RoundToInt(Mathf.Max(blendFieldFrameRatio * blendFieldVertexCountPerFrame, minVertexCountForTotalRendering));
blendFieldVertexCountPerFrame = Mathf.Clamp(blendFieldVertexCountPerFrame, 1, totalVertexCount);
int nextBlendFieldFrontVertexIndex = (blendFieldFrontVertexIndex + blendFieldVertexCountPerFrame) % totalVertexCount;
Vector2 blendFieldComputationParams = new Vector2(blendFieldFrontVertexIndex, nextBlendFieldFrontVertexIndex);
_vertexFrontIndexAndCountPerFrameList[renderedObjIndex] = new Vector3(blendFieldFrontVertexIndex, blendFieldVertexCountPerFrame, totalVertexCount);
// Update the blending material's properties.
Graphics.ClearRandomWriteTargets();
Graphics.SetRandomWriteTarget(1, _vertexCamWeightsBufferList[renderedObjIndex]);
Graphics.SetRandomWriteTarget(2, _vertexCamIndicesBufferList[renderedObjIndex]);
currentBlendingMat.SetBuffer(_shaderNameVertexCamWeightsBuffer, _vertexCamWeightsBufferList[renderedObjIndex]);
currentBlendingMat.SetBuffer(_shaderNameVertexCamIndicesBuffer, _vertexCamIndicesBufferList[renderedObjIndex]);
currentBlendingMat.SetVector(_shaderNameBlendFieldComputationParams, blendFieldComputationParams);
currentBlendingMat.SetInt(_shaderNameIsSceneViewCamera, _isSceneViewCamera ? 1 : 0);
}
renderedObjIndex += increment;
}
}
}
/// <summary>
/// Adds an object rendered with ULR to the list of objects currently rendering to this camera.
/// </summary>
/// <param name="helperULR"></param> The helper ULR method attached to the object rendering to this camera.
/// <param name="totalVertexCount"></param> The total vertex count of the mesh attached to the object rendering to this camera.
public void AddRenderedObject(Helper_ULR helperULR, int totalVertexCount)
{
if (!_initialized)
{
Initialize();
}
if (_initialized)
{
int addCount = _isStereo ? 2 : 1;
for (int addIter = 0; addIter < addCount; addIter++)
{
_helperULRList.Add(helperULR);
_vertexCamWeightsBufferList.Add(new ComputeBuffer(totalVertexCount, 4 * sizeof(float)));
_vertexCamIndicesBufferList.Add(new ComputeBuffer(totalVertexCount, 4 * sizeof(uint)));
_vertexFrontIndexAndCountPerFrameList.Add(new Vector3(0, totalVertexCount, totalVertexCount));
}
OnPreRender();
}
}
