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Initial translation from standard_surface to open_pbr_surface #1934

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merged 5 commits into from
Jul 17, 2024
Merged

Initial translation from standard_surface to open_pbr_surface #1934

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f55f66a
Standard_surface to open_pbr translation
mkuo-lucasfilm Jul 12, 2024
6ee9f01
Update standard_surface_to_open_pbr.mtlx
mkuo-lucasfilm Jul 15, 2024
c850bca
Merge branch 'main' into main
jstone-lucasfilm Jul 16, 2024
c5196d1
Merge branch 'main' of https://github.com/mkuo-lucasfilm/MaterialX
mkuo-lucasfilm Jul 16, 2024
49bde26
Minor spacing fix
jstone-lucasfilm Jul 17, 2024
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2 changes: 1 addition & 1 deletion libraries/bxdf/standard_surface.mtlx
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Original file line number Diff line number Diff line change
Expand Up @@ -82,7 +82,7 @@
<input name="coat_affect_roughness" type="float" value="0" uimin="0" uimax="1" uiname="Coat Affect Roughness" uifolder="Coat" uiadvanced="true"
doc="Controls the roughness of the specular reflection in the layers below the clear-coat." />
<input name="thin_film_thickness" type="float" value="0" uimin="0.0" uisoftmax="2000.0" uiname="Thin Film Thickness" uifolder="Thin Film" uiadvanced="true"
doc="The thickness of the thin film layer on a surface. Use for materials such as multitone car paint or soap bubbles." />
doc="The thickness of the thin film layer on a surface. Use for materials such as multitone car paint or soap bubbles (in nanometers)." />
<input name="thin_film_IOR" type="float" value="1.5" uimin="0.0" uisoftmin="1.0" uisoftmax="3.0" uiname="Thin Film Index of Refraction" uifolder="Thin Film" uiadvanced="true"
doc="The index of refraction of the medium surrounding the material." />
<input name="emission" type="float" value="0" uimin="0.0" uisoftmax="1.0" uiname="Emission" uifolder="Emission"
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306 changes: 306 additions & 0 deletions libraries/bxdf/translation/standard_surface_to_open_pbr.mtlx
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@@ -0,0 +1,306 @@
<?xml version="1.0"?>
<materialx version="1.39">

<nodedef name="ND_standard_surface_to_open_pbr_surface" node="standard_surface_to_open_pbr_surface" nodegroup="translation">
<input name="base" type="float" value="0.8" />
<input name="base_color" type="color3" value="1.0, 1.0, 1.0" />
<input name="diffuse_roughness" type="float" value="0" />
<input name="metalness" type="float" value="0" />

<input name="specular" type="float" value="1" />
<input name="specular_color" type="color3" value="1, 1, 1" />
<input name="specular_roughness" type="float" value="0.2" />
<input name="specular_IOR" type="float" value="1.5" />
<input name="specular_anisotropy" type="float" value="0" />

<input name="transmission" type="float" value="0" />
<input name="transmission_color" type="color3" value="1, 1, 1"/>
<input name="transmission_depth" type="float" value="0" />
<input name="transmission_scatter" type="color3" value="0, 0, 0" />
<input name="transmission_scatter_anisotropy" type="float" value="0" />
<input name="transmission_dispersion" type="float" value="0" />

<input name="subsurface" type="float" value="0" uimin="0.0" />
<input name="subsurface_color" type="color3" value="1, 1, 1" />
<input name="subsurface_radius" type="color3" value="1, 1, 1" />
<input name="subsurface_scale" type="float" value="1" />
<input name="subsurface_anisotropy" type="float" value="0" />

<input name="sheen" type="float" value="0" uimin="0.0" />
<input name="sheen_color" type="color3" value="1, 1, 1" />
<input name="sheen_roughness" type="float" value="0.3" />

<input name="coat" type="float" value="0" />
<input name="coat_color" type="color3" value="1, 1, 1" />
<input name="coat_roughness" type="float" value="0.1" />
<input name="coat_anisotropy" type="float" value="0.0" />
<input name="coat_IOR" type="float" value="1.5" />
<input name="coat_affect_roughness" type="float" value="0" />

<input name="thin_film_thickness" type="float" value="0" />
<input name="thin_film_IOR" type="float" value="1.5" />

<input name="emission" type="float" value="0" />
<input name="emission_color" type="color3" value="1, 1, 1" />

<input name="opacity" type="color3" value="1, 1, 1" />
<input name="thin_walled" type="boolean" value="false" />

<!--Outputs-->
<output name="base_weight_out" type="float" />
<output name="base_color_out" type="color3" />
<output name="base_diffuse_roughness_out" type="float" />
<output name="base_metalness_out" type="float" />

<output name="specular_weight_out" type="float" />
<output name="specular_color_out" type="color3" />
<output name="specular_roughness_out" type="float" />
<output name="specular_ior_out" type="float" />
<output name="specular_roughness_anisotropy_out" type="float" />

<output name="transmission_weight_out" type="float" />
<output name="transmission_color_out" type="color3" />
<output name="transmission_depth_out" type="float" />
<output name="transmission_scatter_out" type="color3" />
<output name="transmission_scatter_anisotropy_out" type="float" />
<output name="transmission_dispersion_scale_out" type="float" />

<output name="subsurface_weight_out" type="float" />
<output name="subsurface_color_out" type="color3" />
<output name="subsurface_radius_out" type="float" />
<output name="subsurface_radius_scale_out" type="color3" />
<output name="subsurface_scatter_anisotropy_out" type="float" />

<output name="fuzz_weight_out" type="float" />
<output name="fuzz_color_out" type="color3" />
<output name="fuzz_roughness_out" type="float" />

<output name="coat_weight_out" type="float" />
<output name="coat_color_out" type="color3" />
<output name="coat_roughness_out" type="float" />
<output name="coat_roughness_anisotropy_out" type="float" />
<output name="coat_ior_out" type="float" />
<output name="coat_darkening_out" type="float" />

<output name="thin_film_weight_out" type="float" />
<output name="thin_film_thickness_out" type="float" />
<output name="thin_film_ior_out" type="float" />

<output name="emission_luminance_out" type="float" />
<output name="emission_color_out" type="color3" />

<output name="geometry_opacity_out" type="float" />
<output name="geometry_thin_walled_out" type="boolean" />
</nodedef>

<nodegraph name="NG_standard_surface_to_open_pbr_surface" nodedef="ND_standard_surface_to_open_pbr_surface">

<!--Base-->
<dot name="baseWeight" type="float">
<input name="in" type="float" interfacename="base" />
</dot>
<mix name="coatAttenuation" type="color3">
<input name="fg" type="color3" interfacename="coat_color" />
<input name="bg" type="color3" value="1.0, 1.0, 1.0" />
<input name="mix" type="float" interfacename="coat" />
</mix>
<multiply name="baseColor" type="color3">
<input name="in1" type="color3" interfacename="base_color" />
<input name="in2" type="color3" nodename="coatAttenuation" />
</multiply>
<dot name="baseDiffuseRoughness" type="float">
<input name="in" type="float" interfacename="diffuse_roughness" />
</dot>
<dot name="baseMetalness" type="float">
<input name="in" type="float" interfacename="metalness" />
</dot>

<!--Specular-->
<ifgreater name="specWeight" type="float">
<input name="value1" type="float" interfacename="metalness" />
<input name="value2" type="float" value="0.0" />
<input name="in1" type="float" value="1.0" />
<input name="in2" type="float" interfacename="specular" />
</ifgreater>
<convert name="specVector" type="vector3">
<input name="in" type="color3" interfacename="specular_color" />
</convert>
<dotproduct name="dotProd" type="float">
<input name="in1" type="vector3" nodename="specVector" />
<input name="in2" type="vector3" value="1.0, 1.0, 1.0" />
</dotproduct>
<!--intentionally ignoring the original specular_color input for metals, since the translation between these concepts will take more thought-->
<ifequal name="specColor" type="color3">
<input name="value1" type="float" value="0.0" />
<input name="value2" type="float" nodename="dotProd" />
<input name="in1" type="color3" value="1.0, 1.0, 1.0" />
<input name="in2" type="color3" interfacename="specular_color" />
</ifequal>
<dot name="specRoughness" type="float">
<input name="in" type="float" interfacename="specular_roughness" />
</dot>
<dot name="specIOR" type="float">
<input name="in" type="float" interfacename="specular_IOR" />
</dot>
<dot name="specRoughnessAnisotropy" type="float">
<input name="in" type="float" interfacename="specular_anisotropy" />
</dot>

<!--Transmission-->
<dot name="transmissionWeight" type="float">
<input name="in" type="float" interfacename="transmission" />
</dot>
<dot name="transmissionColor" type="color3">
<input name="in" type="color3" interfacename="transmission_color" />
</dot>
<dot name="transmissionDepth" type="float">
<input name="in" type="float" interfacename="transmission_depth" />
</dot>
<dot name="transmissionScatter" type="color3">
<input name="in" type="color3" interfacename="transmission_scatter" />
</dot>
<dot name="transmissionScatterAnisotropy" type="float">
<input name="in" type="float" interfacename="transmission_scatter_anisotropy" />
</dot>
<dot name="transmissionDispersion" type="float">
<input name="in" type="float" interfacename="transmission_dispersion" />
</dot>

<!--Subsurface-->
<dot name="subsurfaceWeight" type="float">
<input name="in" type="float" interfacename="subsurface" />
</dot>
<dot name="subsurfaceColor" type="color3">
<input name="in" type="color3" interfacename="subsurface_color" />
</dot>
<dot name="subsurfaceRadius" type="float">
<input name="in" type="float" interfacename="subsurface_scale" />
</dot>
<dot name="subsurfaceRadiusScale" type="color3">
<input name="in" type="color3" interfacename="subsurface_radius" />
</dot>
<dot name="subsurfaceAnisotropy" type="float">
<input name="in" type="float" interfacename="subsurface_anisotropy" />
</dot>

<!--Fuzz-->
<dot name="fuzzWeight" type="float">
<input name="in" type="float" interfacename="sheen" />
</dot>
<dot name="fuzzColor" type="color3">
<input name="in" type="color3" interfacename="sheen_color" />
</dot>
<power name="fuzzRoughness" type="float">
<input name="in1" type="float" interfacename="sheen_roughness" />
<input name="in2" type="float" value="0.4" />
</power>

<!--Coat-->
<multiply name="coatMetallic" type="float">
<input name="in1" type="float" interfacename="coat" />
<input name="in2" type="float" interfacename="metalness" />
</multiply>
<ifgreater name="coatWeight" type="float">
<input name="value1" type="float" nodename="coatMetallic" />
<input name="value2" type="float" value="0.0" />
<input name="in1" type="float" value="0.0" />
<input name="in2" type="float" interfacename="coat" />
</ifgreater>
<dot name="coatColor" type="color3">
<input name="in" type="color3" interfacename="coat_color" />
</dot>
<dot name="coatRoughness" type="float">
<input name="in" type="float" interfacename="coat_roughness" />
</dot>
<dot name="coatAnisotropy" type="float">
<input name="in" type="float" interfacename="coat_anisotropy" />
</dot>
<dot name="coatIOR" type="float">
<input name="in" type="float" interfacename="coat_IOR" />
</dot>
<dot name="coatDarkening" type="float">
<input name="in" type="float" interfacename="coat_affect_roughness" />
</dot>

<!--ThinFilm-->
<multiply name="thinFilmThicknessConversion" type="float">
<input name="in1" type="float" interfacename="thin_film_thickness" />
<input name="in2" type="float" value="0.001" />
</multiply>
<ifgreater name="thinFilmWeight" type="float">
<input name="value1" type="float" nodename="thinFilmThicknessConversion" />
<input name="value2" type="float" value="0.0" />
<input name="in1" type="float" value="1.0" />
<input name="in2" type="float" value="0.0" />
</ifgreater>
<dot name="thinFilmThickness" type="float">
<input name="in" type="float" nodename="thinFilmThicknessConversion" />
</dot>
<dot name="thinFilmIOR" type="float">
<input name="in" type="float" interfacename="thin_film_IOR" />
</dot>

<!--Emission-->
<dot name="emissionLuminance" type="float">
<input name="in" type="float" interfacename="emission" />
</dot>
<dot name="emissionColor" type="color3">
<input name="in" type="color3" interfacename="emission_color" />
</dot>

<!--Geometry-->
<extract name="geometryOpacity" type="float">
<input name="in" type="color3" interfacename="opacity" />
<input name="index" type="integer" value="0" />
</extract>
<dot name="geometryThinWalled" type="boolean">
<input name="in" type="boolean" interfacename="thin_walled" />
</dot>

<!--Outputs-->
<output name="base_weight_out" type="float" nodename="baseWeight" />
<output name="base_color_out" type="color3" nodename="baseColor" />
<output name="base_diffuse_roughness_out" type="float" nodename="baseDiffuseRoughness" />
<output name="base_metalness_out" type="float" nodename="baseMetalness" />

<output name="specular_weight_out" type="float" nodename="specWeight" />
<output name="specular_color_out" type="color3" nodename="specColor" />
<output name="specular_roughness_out" type="float" nodename="specRoughness" />
<output name="specular_ior_out" type="float" nodename="specIOR" />
<output name="specular_roughness_anisotropy_out" type="float" nodename="specRoughnessAnisotropy" />

<output name="transmission_weight_out" type="float" nodename="transmissionWeight" />
<output name="transmission_color_out" type="color3" nodename="transmissionColor" />
<output name="transmission_depth_out" type="float" nodename="transmissionDepth" />
<output name="transmission_scatter_out" type="color3" nodename="transmissionScatter" />
<output name="transmission_scatter_anisotropy_out" type="float" nodename="transmissionScatterAnisotropy" />
<output name="transmission_dispersion_scale_out" type="float" nodename="transmissionDispersion" />

<output name="subsurface_weight_out" type="float" nodename="subsurfaceWeight" />
<output name="subsurface_color_out" type="color3" nodename="subsurfaceColor" />
<output name="subsurface_radius_out" type="float" nodename="subsurfaceRadius" />
<output name="subsurface_radius_scale_out" type="color3" nodename="subsurfaceRadiusScale" />
<output name="subsurface_scatter_anisotropy_out" type="float" nodename="subsurfaceAnisotropy" />

<output name="fuzz_weight_out" type="float" nodename="fuzzWeight" />
<output name="fuzz_color_out" type="color3" nodename="fuzzColor" />
<output name="fuzz_roughness_out" type="float" nodename="fuzzRoughness" />

<output name="coat_weight_out" type="float" nodename="coatWeight" />
<output name="coat_color_out" type="color3" nodename="coatColor" />
<output name="coat_roughness_out" type="float" nodename="coatRoughness" />
<output name="coat_roughness_anisotropy_out" type="float" nodename="coatAnisotropy" />
<output name="coat_ior_out" type="float" nodename="coatIOR" />
<output name="coat_darkening_out" type="float" nodename="coatDarkening" />

<output name="thin_film_weight_out" type="float" nodename="thinFilmWeight" />
<output name="thin_film_thickness_out" type="float" nodename="thinFilmThickness" />
<output name="thin_film_ior_out" type="float" nodename="thinFilmIOR" />

<output name="emission_luminance_out" type="float" nodename="emissionLuminance" />
<output name="emission_color_out" type="color3" nodename="emissionColor" />

<output name="geometry_opacity_out" type="float" nodename="geometryOpacity" />
<output name="geometry_thin_walled_out" type="boolean" nodename="geometryThinWalled" />
</nodegraph>
</materialx>