Differential D10575 Diff 35726 source/blender/draw/engines/eevee/shaders/effect_reflection_lib.glsl

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

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	bool is_planar;	bool is_planar;
	};	};

		struct SsgiHitData {
		/** Hit direction scaled by intersection time. */
		vec3 hit_dir;
		/** Screen space [0..1] depth of the reflection hit position, or -1.0 for planar reflections (unused). */
		float hit_depth;
		/** Inverse probability of ray spawning in this direction. */
		float ray_pdf_inv;
		/** True if ray has hit valid geometry. */
		bool is_hit;
		};

	void encode_hit_data(HitData data, vec3 hit_sP, vec3 vP, out vec4 hit_data, out float hit_depth)	void encode_hit_data(HitData data, vec3 hit_sP, vec3 vP, out vec4 hit_data, out float hit_depth)
	{	{
	vec3 hit_vP = get_view_space_from_depth(hit_sP.xy, hit_sP.z);	vec3 hit_vP = get_view_space_from_depth(hit_sP.xy, hit_sP.z);
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	hit_data.w = data.ray_pdf_inv * ((data.is_hit) ? 1.0 : -1.0);	hit_data.w = data.ray_pdf_inv * ((data.is_hit) ? 1.0 : -1.0);
	}	}

		void ssgi_encode_hit_data(SsgiHitData data, vec3 hit_sP, vec3 vP, out vec4 hit_data, out float hit_depth)
		{
		vec3 hit_vP = get_view_space_from_depth(hit_sP.xy, hit_sP.z);
		hit_data.xyz = hit_vP - vP;
		hit_depth = hit_sP.z;
		/* Record 1.0 / pdf to reduce the computation in the resolve phase. */
		/* Encode hit validity in sign. */
		hit_data.w = data.ray_pdf_inv * ((data.is_hit) ? 1.0 : -1.0);
		}

	HitData decode_hit_data(vec4 hit_data, float hit_depth)	HitData decode_hit_data(vec4 hit_data, float hit_depth)
	{	{
	HitData data;	HitData data;
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	return data;	return data;
	}	}

		SsgiHitData ssgi_decode_hit_data(vec4 hit_data, float hit_depth)
		{
		SsgiHitData data;
		data.hit_dir.xyz = hit_data.xyz;
		data.hit_depth = hit_depth;
		data.ray_pdf_inv = abs(hit_data.w);
		data.is_hit = (hit_data.w > 0.0);
		return data;
		}

	/* Blue noise categorised into 4 sets of samples.	/* Blue noise categorised into 4 sets of samples.
	* See "Stochastic all the things" presentation slide 32-37. */	* See "Stochastic all the things" presentation slide 32-37. */
	const int resolve_samples_count = 9;	const int resolve_samples_count = 9;
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