Differential D16243 Diff 58431 source/blender/draw/engines/eevee/shaders/lightprobe_planar_downsample_frag.glsl

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

	/**			/**
	* Simple down-sample shader. Takes the average of the 4 texels of lower mip.			* Simple down-sample shader. Takes the average of the 4 texels of lower mip.
	*/			*/

	#pragma BLENDER_REQUIRE(common_math_lib.glsl)			#pragma BLENDER_REQUIRE(common_math_lib.glsl)

	uniform sampler2DArray source;
	uniform float fireflyFactor;

	in vec2 uvs;
	flat in float layer;

	out vec4 FragColor;

	void main()			void main()
	{			{
	#if 0			#if 0
	/* Reconstructing Target uvs like this avoid missing pixels if NPO2 */			/* Reconstructing Target uvs like this avoid missing pixels if NPO2 */
	vec2 uvs = gl_FragCoord.xy * 2.0 / vec2(textureSize(source, 0).xy);			vec2 uvs = gl_FragCoord.xy * 2.0 / vec2(textureSize(source, 0).xy);

	FragColor = textureLod(source, vec3(uvs, layer), 0.0);			FragColor = textureLod(source, vec3(uvs, lightprobe_geom_iface.layer), 0.0);
	#else			#else
	vec2 texel_size = 1.0 / vec2(textureSize(source, 0).xy);			vec2 texel_size = 1.0 / vec2(textureSize(source, 0).xy);
	vec2 uvs = gl_FragCoord.xy * 2.0 * texel_size;			vec2 uvs = gl_FragCoord.xy * 2.0 * texel_size;
	vec4 ofs = texel_size.xyxy * vec4(0.75, 0.75, -0.75, -0.75);			vec4 ofs = texel_size.xyxy * vec4(0.75, 0.75, -0.75, -0.75);

	FragColor = textureLod(source, vec3(uvs + ofs.xy, layer), 0.0);			FragColor = textureLod(source, vec3(uvs + ofs.xy, lightprobe_geom_iface.layer), 0.0);
	FragColor += textureLod(source, vec3(uvs + ofs.xw, layer), 0.0);			FragColor += textureLod(source, vec3(uvs + ofs.xw, lightprobe_geom_iface.layer), 0.0);
	FragColor += textureLod(source, vec3(uvs + ofs.zy, layer), 0.0);			FragColor += textureLod(source, vec3(uvs + ofs.zy, lightprobe_geom_iface.layer), 0.0);
	FragColor += textureLod(source, vec3(uvs + ofs.zw, layer), 0.0);			FragColor += textureLod(source, vec3(uvs + ofs.zw, lightprobe_geom_iface.layer), 0.0);
	FragColor *= 0.25;			FragColor *= 0.25;

	/* Clamped brightness. */			/* Clamped brightness. */
	float luma = max(1e-8, max_v3(FragColor.rgb));			float luma = max(1e-8, max_v3(FragColor.rgb));
	FragColor *= 1.0 - max(0.0, luma - fireflyFactor) / luma;			FragColor *= 1.0 - max(0.0, luma - fireflyFactor) / luma;
	#endif			#endif
	}			}