public virtual void Init(PostProcessingContext pcontext, T pmodel)
{
context = pcontext;
model = pmodel;
}
public void ProcessImage(PostProcessingContext context, CommandBuffer cb, ref Settings settings, RenderTargetIdentifier source, RenderTargetIdentifier destination, Material material)
{
const float kMaxBlurRadius = 5f;
// Calculate the maximum blur radius in pixels.
int maxBlurPixels = (int)(kMaxBlurRadius * context.height / 100);
// Calculate the TileMax size.
// It should be a multiple of 8 and larger than maxBlur.
int tileSize = ((maxBlurPixels - 1) / 8 + 1) * 8;
// Pass 1 - Velocity/depth packing
var velocityScale = settings.shutterAngle / 360f;
cb.SetGlobalFloat(Uniforms._VelocityScale, velocityScale);
cb.SetGlobalFloat(Uniforms._MaxBlurRadius, maxBlurPixels);
cb.SetGlobalFloat(Uniforms._RcpMaxBlurRadius, 1f / maxBlurPixels);
int vbuffer = Uniforms._VelocityTex;
cb.GetTemporaryRT(vbuffer, context.width, context.height, 0, FilterMode.Point, m_PackedRTFormat, RenderTextureReadWrite.Linear);
cb.Blit((Texture)null, vbuffer, material, (int)Pass.VelocitySetup);
// Pass 2 - First TileMax filter (1/2 downsize)
int tile2 = Uniforms._Tile2RT;
cb.GetTemporaryRT(tile2, context.width / 2, context.height / 2, 0, FilterMode.Point, m_VectorRTFormat, RenderTextureReadWrite.Linear);
cb.SetGlobalTexture(Uniforms._MainTex, vbuffer);
cb.Blit(vbuffer, tile2, material, (int)Pass.TileMax1);
// Pass 3 - Second TileMax filter (1/2 downsize)
int tile4 = Uniforms._Tile4RT;
cb.GetTemporaryRT(tile4, context.width / 4, context.height / 4, 0, FilterMode.Point, m_VectorRTFormat, RenderTextureReadWrite.Linear);
cb.SetGlobalTexture(Uniforms._MainTex, tile2);
cb.Blit(tile2, tile4, material, (int)Pass.TileMax2);
cb.ReleaseTemporaryRT(tile2);
// Pass 4 - Third TileMax filter (1/2 downsize)
int tile8 = Uniforms._Tile8RT;
cb.GetTemporaryRT(tile8, context.width / 8, context.height / 8, 0, FilterMode.Point, m_VectorRTFormat, RenderTextureReadWrite.Linear);
cb.SetGlobalTexture(Uniforms._MainTex, tile4);
cb.Blit(tile4, tile8, material, (int)Pass.TileMax2);
cb.ReleaseTemporaryRT(tile4);
// Pass 5 - Fourth TileMax filter (reduce to tileSize)
var tileMaxOffs = Vector2.one * (tileSize / 8f - 1f) * -0.5f;
cb.SetGlobalVector(Uniforms._TileMaxOffs, tileMaxOffs);
cb.SetGlobalFloat(Uniforms._TileMaxLoop, (int)(tileSize / 8f));
int tile = Uniforms._TileVRT;
cb.GetTemporaryRT(tile, context.width / tileSize, context.height / tileSize, 0, FilterMode.Point, m_VectorRTFormat, RenderTextureReadWrite.Linear);
cb.SetGlobalTexture(Uniforms._MainTex, tile8);
cb.Blit(tile8, tile, material, (int)Pass.TileMaxV);
cb.ReleaseTemporaryRT(tile8);
// Pass 6 - NeighborMax filter
int neighborMax = Uniforms._NeighborMaxTex;
int neighborMaxWidth = context.width / tileSize;
int neighborMaxHeight = context.height / tileSize;
cb.GetTemporaryRT(neighborMax, neighborMaxWidth, neighborMaxHeight, 0, FilterMode.Point, m_VectorRTFormat, RenderTextureReadWrite.Linear);
cb.SetGlobalTexture(Uniforms._MainTex, tile);
cb.Blit(tile, neighborMax, material, (int)Pass.NeighborMax);
cb.ReleaseTemporaryRT(tile);
// Pass 7 - Reconstruction pass
cb.SetGlobalFloat(Uniforms._LoopCount, Mathf.Clamp(settings.sampleCount / 2, 1, 64));
cb.SetGlobalTexture(Uniforms._MainTex, source);
cb.Blit(source, destination, material, (int)Pass.Reconstruction);
cb.ReleaseTemporaryRT(vbuffer);
cb.ReleaseTemporaryRT(neighborMax);
}