I am trying to write a couple pixel shaders to apply to images similar to Photoshop effects. For example this effect: ...
In Valve's Alpha Tested Magnification paper, it mentions using "per-pixel screen-space derivatives" for doing anti-aliasing. My understanding is that this is the ddx and ddy intrinsic functions in ...
I have two texture2d , one of these is a mask texture and have 2kind color and i use that for mask (filter) second texture2D something like float4 tex = tex2D(sprite, texCoord); float4 bitMask ...