Compute frag pos in view space

gistfile1.txt

// Compute frag pos in view space
	vec3 fragPos;
	{
		float depth = gl_FragCoord.z;
		fragPos.z = u_lightingUniforms.projectionParams.z
			/ (u_lightingUniforms.projectionParams.w + depth);

		vec2 screenSize = 1.0 / RENDERER_SIZE;

		vec2 ndc = gl_FragCoord.xy * screenSize * 2.0 - 1.0;

		fragPos.xy = ndc * u_lightingUniforms.projectionParams.xy * fragPos.z;
	}