Shows how to perform a extremely wide, highly optimised Gaussian Blur using compute shaders.
This example demonstrates how to perform a 19x19 Gaussian Blur. It uses every input and output step to blur an image by reading from an input using compute while blurring in one direction, and then writing to the output with a fragment shader whilst blurring in the other direction.
This technique has been highly optimised for PowerVR and is very suitable for a very large convolution width.
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