|dest||Destination RenderTexture, or
|mat||Material to use for copying. Material's shader should do some post-processing effect.|
|offsets||Variable number of filtering offsets. Offsets are given in pixels.|
Copies source texture into destination, for multi-tap shader.
This is mostly used for implementing some [post-processing effects. For example,
Gaussian or iterative Cone blurring samples source texture at multiple different locations.
dest to be active render texture, sets
_MainTex property on the material, and draws a full-screen quad. Each vertex of the quad
has multiple texture coordinates set up, offset by
See Also: Graphics.Blit, post-processing effects.