Differential D6952 Diff 22143 source/blender/gpu/shaders/material/gpu_shader_material_volume_info.glsl

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

	void node_attribute_volume_density(sampler3D tex, out vec4 outcol, out vec3 outvec, out float outf)
				/* Uniforms to convert smoke grid values into standard range. */
				uniform vec3 volumeColor = vec3(1.0);
				uniform vec2 volumeTemperature = vec2(0.0);

				/* Generic volume attribute. */
				void node_attribute_volume(sampler3D tex, out vec3 outvec)
	{			{
	#if defined(MESH_SHADER) && defined(VOLUMETRICS)			#if defined(MESH_SHADER) && defined(VOLUMETRICS)
	vec3 cos = volumeObjectLocalCoord;			vec3 cos = volumeObjectLocalCoord;
	#else			#else
	vec3 cos = vec3(0.0);			vec3 cos = vec3(0.0);
	#endif			#endif
	outf = texture(tex, cos).r;			outvec = texture(tex, cos).rgb;
	outvec = vec3(outf, outf, outf);
	outcol = vec4(outf, outf, outf, 1.0);
	}			}

	uniform vec3 volumeColor = vec3(1.0);			/* Special color attribute for smoke. */
				void node_attribute_volume_color(sampler3D tex, out vec3 outvec)
	void node_attribute_volume_color(sampler3D tex, out vec4 outcol, out vec3 outvec, out float outf)
	{			{
	#if defined(MESH_SHADER) && defined(VOLUMETRICS)			#if defined(MESH_SHADER) && defined(VOLUMETRICS)
	vec3 cos = volumeObjectLocalCoord;			vec3 cos = volumeObjectLocalCoord;
	#else			#else
	vec3 cos = vec3(0.0);			vec3 cos = vec3(0.0);
	#endif			#endif

	vec4 value = texture(tex, cos).rgba;
	/* Density is premultiplied for interpolation, divide it out here. */			/* Density is premultiplied for interpolation, divide it out here. */
				vec4 value = texture(tex, cos).rgba;
	if (value.a > 1e-8) {			if (value.a > 1e-8) {
	value.rgb /= value.a;			value.rgb /= value.a;
	}			}

	outvec = value.rgb * volumeColor;			outvec = value.rgb * volumeColor;
	outcol = vec4(outvec, 1.0);
	outf = avg(outvec);
	}

	void node_attribute_volume_flame(sampler3D tex, out vec4 outcol, out vec3 outvec, out float outf)
	{
	#if defined(MESH_SHADER) && defined(VOLUMETRICS)
	vec3 cos = volumeObjectLocalCoord;
	#else
	vec3 cos = vec3(0.0);
	#endif
	outf = texture(tex, cos).r;
	outvec = vec3(outf, outf, outf);
	outcol = vec4(outf, outf, outf, 1.0);
	}			}

	void node_attribute_volume_temperature(			/* Special temperature attribute for smoke. */
	sampler3D tex, vec2 temperature, out vec4 outcol, out vec3 outvec, out float outf)			void node_attribute_volume_temperature(sampler3D tex, out float outf)
	{			{
	#if defined(MESH_SHADER) && defined(VOLUMETRICS)			#if defined(MESH_SHADER) && defined(VOLUMETRICS)
	vec3 cos = volumeObjectLocalCoord;			vec3 cos = volumeObjectLocalCoord;
	#else			#else
	vec3 cos = vec3(0.0);			vec3 cos = vec3(0.0);
	#endif			#endif
	float flame = texture(tex, cos).r;

	outf = (flame > 0.01) ? temperature.x + flame * (temperature.y - temperature.x) : 0.0;			float value = texture(tex, cos).r;
	outvec = vec3(outf, outf, outf);			if (volumeTemperature.x < volumeTemperature.y) {
	outcol = vec4(outf, outf, outf, 1.0);			outf = (value > 0.01) ?
				volumeTemperature.x + value * (volumeTemperature.y - volumeTemperature.x) :
				0.0;
	}			}
				else {
	void node_volume_info(sampler3D densitySampler,			outf = value;
	sampler3D colorSampler,
	sampler3D flameSampler,
	vec2 temperature,
	out vec4 outColor,
	out float outDensity,
	out float outFlame,
	out float outTemprature)
	{
	#if defined(MESH_SHADER) && defined(VOLUMETRICS)
	vec3 p = volumeObjectLocalCoord;
	#else
	vec3 p = vec3(0.0);
	#endif

	outDensity = texture(densitySampler, p).r;

	/* Color is premultiplied for interpolation, divide it out here. */
	vec4 color = texture(colorSampler, p);
	if (color.a > 1e-8) {
	color.rgb /= color.a;
	}			}
	outColor = vec4(color.rgb * volumeColor, 1.0);

	float flame = texture(flameSampler, p).r;
	outFlame = flame;

	outTemprature = (flame > 0.01) ? temperature.x + flame * (temperature.y - temperature.x) : 0.0;
	}			}