diff options
Diffstat (limited to 'intern/cycles/kernel/shaders/node_principled_volume.osl')
| -rw-r--r-- | intern/cycles/kernel/shaders/node_principled_volume.osl | 126 |
1 files changed, 62 insertions, 64 deletions
diff --git a/intern/cycles/kernel/shaders/node_principled_volume.osl b/intern/cycles/kernel/shaders/node_principled_volume.osl index ea8d6ab12c5..39cf6837eb2 100644 --- a/intern/cycles/kernel/shaders/node_principled_volume.osl +++ b/intern/cycles/kernel/shaders/node_principled_volume.osl @@ -16,80 +16,78 @@ #include "stdosl.h" -shader node_principled_volume( - color Color = color(0.5, 0.5, 0.5), - float Density = 1.0, - float Anisotropy = 0.0, - color AbsorptionColor = color(0.0, 0.0, 0.0), - float EmissionStrength = 0.0, - color EmissionColor = color(1.0, 1.0, 1.0), - float BlackbodyIntensity = 0.0, - color BlackbodyTint = color(1.0, 1.0, 1.0), - float Temperature = 1500.0, - string DensityAttribute = "geom:density", - string ColorAttribute = "geom:color", - string TemperatureAttribute = "geom:temperature", - output closure color Volume = 0) +shader node_principled_volume(color Color = color(0.5, 0.5, 0.5), + float Density = 1.0, + float Anisotropy = 0.0, + color AbsorptionColor = color(0.0, 0.0, 0.0), + float EmissionStrength = 0.0, + color EmissionColor = color(1.0, 1.0, 1.0), + float BlackbodyIntensity = 0.0, + color BlackbodyTint = color(1.0, 1.0, 1.0), + float Temperature = 1500.0, + string DensityAttribute = "geom:density", + string ColorAttribute = "geom:color", + string TemperatureAttribute = "geom:temperature", + output closure color Volume = 0) { - /* Compute density. */ - float primitive_density = 1.0; - float density = max(Density, 0.0); + /* Compute density. */ + float primitive_density = 1.0; + float density = max(Density, 0.0); - if(density > 1e-5) { - if(getattribute(DensityAttribute, primitive_density)) { - density = max(density * primitive_density, 0.0); - } - } + if (density > 1e-5) { + if (getattribute(DensityAttribute, primitive_density)) { + density = max(density * primitive_density, 0.0); + } + } - if(density > 1e-5) { - /* Compute scattering color. */ - color scatter_color = Color; - color primitive_color; - if(getattribute(ColorAttribute, primitive_color)) { - scatter_color *= primitive_color; - } + if (density > 1e-5) { + /* Compute scattering color. */ + color scatter_color = Color; + color primitive_color; + if (getattribute(ColorAttribute, primitive_color)) { + scatter_color *= primitive_color; + } - /* Add scattering and absorption closures. */ - color scatter_coeff = scatter_color; - color absorption_color = sqrt(max(AbsorptionColor, 0.0)); - color absorption_coeff = max(1.0 - scatter_color, 0.0) * max(1.0 - absorption_color, 0.0); - Volume = scatter_coeff * density * henyey_greenstein(Anisotropy) + - absorption_coeff * density * absorption(); - } + /* Add scattering and absorption closures. */ + color scatter_coeff = scatter_color; + color absorption_color = sqrt(max(AbsorptionColor, 0.0)); + color absorption_coeff = max(1.0 - scatter_color, 0.0) * max(1.0 - absorption_color, 0.0); + Volume = scatter_coeff * density * henyey_greenstein(Anisotropy) + + absorption_coeff * density * absorption(); + } - /* Compute emission. */ - float emission_strength = max(EmissionStrength, 0.0); - float blackbody_intensity = BlackbodyIntensity; + /* Compute emission. */ + float emission_strength = max(EmissionStrength, 0.0); + float blackbody_intensity = BlackbodyIntensity; - if(emission_strength > 1e-5) { - Volume += emission_strength * EmissionColor * emission(); - } + if (emission_strength > 1e-5) { + Volume += emission_strength * EmissionColor * emission(); + } - if(blackbody_intensity > 1e-3) { - float T = Temperature; + if (blackbody_intensity > 1e-3) { + float T = Temperature; - /* Add temperature from attribute if available. */ - float temperature; - if(getattribute(TemperatureAttribute, temperature)) { - T *= max(temperature, 0.0); - } + /* Add temperature from attribute if available. */ + float temperature; + if (getattribute(TemperatureAttribute, temperature)) { + T *= max(temperature, 0.0); + } - T = max(T, 0.0); + T = max(T, 0.0); - /* Stefan-Boltzman law. */ - float T4 = (T * T) * (T * T); - float sigma = 5.670373e-8 * 1e-6 / M_PI; - float intensity = sigma * mix(1.0, T4, blackbody_intensity); + /* Stefan-Boltzman law. */ + float T4 = (T * T) * (T * T); + float sigma = 5.670373e-8 * 1e-6 / M_PI; + float intensity = sigma * mix(1.0, T4, blackbody_intensity); - if(intensity > 1e-5) { - color bb = blackbody(T); - float l = luminance(bb); + if (intensity > 1e-5) { + color bb = blackbody(T); + float l = luminance(bb); - if(l != 0.0) { - bb *= BlackbodyTint * intensity / l; - Volume += bb * emission(); - } - } - } + if (l != 0.0) { + bb *= BlackbodyTint * intensity / l; + Volume += bb * emission(); + } + } + } } - |