Differential D10390 Diff 33913 source/blender/gpu/shaders/material/gpu_shader_material_glass.glsl

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source/blender/gpu/shaders/material/gpu_shader_material_glass.glsl

	#ifndef VOLUMETRICS			#ifndef VOLUMETRICS

				CLOSURE_EVAL_FUNCTION_DECLARE_2(node_bsdf_glass, Glossy, Refraction)

	void node_bsdf_glass(vec4 color,			void node_bsdf_glass(vec4 color,
	float roughness,			float roughness,
	float ior,			float ior,
	vec3 N,			vec3 N,
	float use_multiscatter,			float use_multiscatter,
	float ssr_id,			float ssr_id,
	out Closure result)			out Closure result)
	{			{
	N = normalize(N);			CLOSURE_VARS_DECLARE_2(Glossy, Refraction);
	vec3 out_spec, out_refr, ssr_spec;
	vec3 refr_color = (refractionDepth > 0.0) ? color.rgb * color.rgb :			in_Glossy_0.N = N; /* Normalized during eval. */
	color.rgb; /* Simulate 2 transmission event */			in_Glossy_0.roughness = roughness;
	eevee_closure_glass(N,
	vec3(1.0),			in_Refraction_1.N = N; /* Normalized during eval. */
	/* HACK: Pass the multiscatter flag as the sign to not add closure			in_Refraction_1.roughness = roughness;
	* variations or increase register usage. */			in_Refraction_1.ior = ior;
	(use_multiscatter != 0.0) ? vec3(1.0) : -vec3(1.0),
	int(ssr_id),			CLOSURE_EVAL_FUNCTION_2(node_bsdf_glass, Glossy, Refraction);
	roughness,
	1.0,
	ior,
	true,
	out_spec,
	out_refr,
	ssr_spec);
	float fresnel = F_eta(ior, dot(N, cameraVec));
	vec3 vN = mat3(ViewMatrix) * N;
	result = CLOSURE_DEFAULT;			result = CLOSURE_DEFAULT;
	result.radiance = render_pass_glossy_mask(refr_color, out_refr * refr_color) * (1.0 - fresnel);
	result.radiance += render_pass_glossy_mask(color.rgb, out_spec * color.rgb) * fresnel;

				float fresnel = F_eta(in_Refraction_1.ior, dot(in_Glossy_0.N, cameraVec));

				vec2 split_sum = brdf_lut(dot(in_Glossy_0.N, cameraVec), in_Glossy_0.roughness);
				vec3 brdf = (use_multiscatter != 0.0) ? F_brdf_multi_scatter(vec3(1.0), vec3(1.0), split_sum) :
				F_brdf_single_scatter(vec3(1.0), vec3(1.0), split_sum);
				out_Glossy_0.radiance = closure_mask_ssr_radiance(out_Glossy_0.radiance, ssr_id);
				out_Glossy_0.radiance *= brdf;
				out_Glossy_0.radiance = render_pass_glossy_mask(vec3(1.0), out_Glossy_0.radiance);
				out_Glossy_0.radiance = color.rgb fresnel;
	closure_load_ssr_data(			closure_load_ssr_data(
	ssr_spec * color.rgb * fresnel, roughness, N, viewCameraVec, int(ssr_id), result);			out_Glossy_0.radiance, in_Glossy_0.roughness, in_Glossy_0.N, ssr_id, result);

				out_Refraction_1.radiance = render_pass_glossy_mask(vec3(1.0), out_Refraction_1.radiance);
				out_Refraction_1.radiance = color.rgb (1.0 - fresnel);
				/* Simulate 2nd absorption event. */
				out_Refraction_1.radiance *= (refractionDepth > 0.0) ? color.rgb : vec3(1.0);
				result.radiance += out_Refraction_1.radiance;
	}			}

	#else			#else
	/* Stub glass because it is not compatible with volumetrics. */			/* Stub glass because it is not compatible with volumetrics. */
	# define node_bsdf_glass(a, b, c, d, e, f, result) (result = CLOSURE_DEFAULT)			# define node_bsdf_glass(a, b, c, d, e, f, result) (result = CLOSURE_DEFAULT)
	#endif			#endif