Page MenuHome
Differential D6951 Diff 22142 source/blender/gpu/shaders/material/gpu_shader_material_volume_info.glsl

Changeset View

Standalone View

View Options

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) void node_attribute_volume_density(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
outvec = texture(tex, cos).aaa; outf = texture(tex, cos).r;
outcol = vec4(outvec, 1.0); outvec = vec3(outf, outf, outf);
outf = avg(outvec); outcol = vec4(outf, outf, outf, 1.0);
} }
uniform vec3 volumeColor = vec3(1.0); uniform vec3 volumeColor = vec3(1.0);
void node_attribute_volume_color(sampler3D tex, out vec4 outcol, out vec3 outvec, out float outf) 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;
Show All 35 Lines#endif
float flame = texture(tex, cos).r; float flame = texture(tex, cos).r;
outf = (flame > 0.01) ? temperature.x + flame * (temperature.y - temperature.x) : 0.0; outf = (flame > 0.01) ? temperature.x + flame * (temperature.y - temperature.x) : 0.0;
outvec = vec3(outf, outf, outf); outvec = vec3(outf, outf, outf);
outcol = vec4(outf, outf, outf, 1.0); outcol = vec4(outf, outf, outf, 1.0);
} }
void node_volume_info(sampler3D densitySampler, void node_volume_info(sampler3D densitySampler,
sampler3D colorSampler,
sampler3D flameSampler, sampler3D flameSampler,
vec2 temperature, vec2 temperature,
out vec4 outColor, out vec4 outColor,
out float outDensity, out float outDensity,
out float outFlame, out float outFlame,
out float outTemprature) out float outTemprature)
{ {
#if defined(MESH_SHADER) && defined(VOLUMETRICS) #if defined(MESH_SHADER) && defined(VOLUMETRICS)
vec3 p = volumeObjectLocalCoord; vec3 p = volumeObjectLocalCoord;
#else #else
vec3 p = vec3(0.0); vec3 p = vec3(0.0);
#endif #endif
vec4 density = texture(densitySampler, p); outDensity = texture(densitySampler, p).r;
outDensity = density.a;
/* Density is premultiplied for interpolation, divide it out here. */ /* Color is premultiplied for interpolation, divide it out here. */
if (density.a > 1e-8) { vec4 color = texture(colorSampler, p);
density.rgb /= density.a; if (color.a > 1e-8) {
color.rgb /= color.a;
} }
outColor = vec4(density.rgb * volumeColor, 1.0); outColor = vec4(color.rgb * volumeColor, 1.0);
float flame = texture(flameSampler, p).r; float flame = texture(flameSampler, p).r;
outFlame = flame; outFlame = flame;
outTemprature = (flame > 0.01) ? temperature.x + flame * (temperature.y - temperature.x) : 0.0; outTemprature = (flame > 0.01) ? temperature.x + flame * (temperature.y - temperature.x) : 0.0;
} }