created an Unreal4 showcase for the Post process cel shader
re-used very old 3ds max robot, crane, sci-fi box model
[ Concept of Convolution ]
In image processing, convolution is the process of transforming an image by applying a kernel.
A kernel is a matrix of values whose size and values determine the transform effect of the convolution process.
I created a custom kernel in Unreal using a basic convolution concept
- offsets for each pixel : four Constant2Vector nodes (left, right, top and bottom pixels)
- Laplacian Edge Detector sample:
