Differential D3205 Diff 10885 source/blender/draw/engines/eevee/shaders/effect_ssr_frag.glsl

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source/blender/draw/engines/eevee/shaders/effect_ssr_frag.glsl

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	/* Based on Stochastic Screen Space Reflections	/* Based on Stochastic Screen Space Reflections
	* https://www.ea.com/frostbite/news/stochastic-screen-space-reflections */	* https://www.ea.com/frostbite/news/stochastic-screen-space-reflections */

	#ifndef UTIL_TEX
	#define UTIL_TEX
	uniform sampler2DArray utilTex;
	#define texelfetch_noise_tex(coord) texelFetch(utilTex, ivec3(ivec2(coord) % LUT_SIZE, 2.0), 0)
	#endif /* UTIL_TEX */

	#define MAX_MIP 9.0	#define MAX_MIP 9.0

	uniform ivec2 halfresOffset;	uniform ivec2 halfresOffset;
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	out vec4 fragColor;	out vec4 fragColor;

	void fallback_cubemap(
	vec3 N, vec3 V, vec3 W, vec3 viewPosition, float roughness, float roughnessSquared, inout vec4 spec_accum)
	{
	/* Specular probes */
	vec3 spec_dir = get_specular_reflection_dominant_dir(N, V, roughnessSquared);

	vec4 rand = texelfetch_noise_tex(gl_FragCoord.xy);
	vec3 bent_normal;
	#ifdef SSR_AO
	float final_ao = occlusion_compute(N, viewPosition, 1.0, rand, bent_normal);
	final_ao = specular_occlusion(dot(N, V), final_ao, roughness);
	#else
	const float final_ao = 1.0;
	#endif

	/* Starts at 1 because 0 is world probe */
	for (int i = 1; i < MAX_PROBE && i < prbNumRenderCube && spec_accum.a < 0.999; ++i) {
	CubeData cd = probes_data[i];

	float fade = probe_attenuation_cube(cd, W);

	if (fade > 0.0) {
	vec3 spec = final_ao * probe_evaluate_cube(float(i), cd, W, spec_dir, roughness);
	accumulate_light(spec, fade, spec_accum);
	}
	}

	/* World Specular */
	if (spec_accum.a < 0.999) {
	vec3 spec = final_ao * probe_evaluate_world_spec(spec_dir, roughness);
	accumulate_light(spec, 1.0, spec_accum);
	}
	}

	#if 0 /* Finish reprojection with motion vectors */	#if 0 /* Finish reprojection with motion vectors */
	vec3 get_motion_vector(vec3 pos)	vec3 get_motion_vector(vec3 pos)
	{	{
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