Babylon.js/src/Shaders/imageProcessing.fragment.fx

// Samplers
varying vec2 vUV;
uniform sampler2D textureSampler;

#include<imageProcessingDeclaration>

#include<helperFunctions>

#include<imageProcessingFunctions>

void main(void)
{
	vec4 result = texture2D(textureSampler, vUV);

#ifdef IMAGEPROCESSING
	#ifndef FROMLINEARSPACE
		// Need to move to linear space for subsequent operations.
		result.rgb = toLinearSpace(result.rgb);
	#endif

	result = applyImageProcessing(result);
#else
	// In case where the input is in linear space we at least need to put it back in gamma.
	#ifdef FROMLINEARSPACE
		result = applyImageProcessing(result);
	#endif
#endif

	gl_FragColor = result;
}