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Support transmission in translation from Standard Surface to glTF PBR #2027

Merged
merged 8 commits into from
Sep 29, 2024
Merged

Support transmission in translation from Standard Surface to glTF PBR #2027

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975a52e
correct translation of transmission parameters from Standard Surface …
charo-m Sep 26, 2024
be8d624
Merge branch 'main' into support_transmission_in_SS_to_glTF_translati…
jstone-lucasfilm Sep 27, 2024
3b9f582
rename interior nodes, remove translation unit test, and add translat…
charo-m Sep 28, 2024
a6479ae
Omit unit test for now
jstone-lucasfilm Sep 29, 2024
dfa8420
Merge branch 'main' into support_transmission_in_SS_to_glTF_translati…
jstone-lucasfilm Sep 29, 2024
81c8911
Minor refactor for clarity
jstone-lucasfilm Sep 29, 2024
2780c87
Minor rename for clarity
jstone-lucasfilm Sep 29, 2024
fccb792
Minor rename for clarity
jstone-lucasfilm Sep 29, 2024
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29 changes: 25 additions & 4 deletions libraries/bxdf/translation/standard_surface_to_gltf_pbr.mtlx
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Original file line number Diff line number Diff line change
Expand Up @@ -76,12 +76,24 @@
</dotproduct>

<!-- Metallic roughness -->
<ifequal name="base_color" type="color3">
<ifequal name="baseColor" type="color3">
<input name="value1" type="float" nodename="hasCoatColor" />
<input name="value2" type="float" value="0" />
<input name="in1" type="color3" nodename="scaledBaseColor" />
<input name="in2" type="color3" nodename="mixedBaseColor" />
</ifequal>
<ifgreater name="transmissionBaseColor" type="color3">
<input name="value1" type="float" interfacename="transmission_depth" />
<input name="value2" type="float" value="0" />
<input name="in1" type="color3" value="1, 1, 1" />
<input name="in2" type="color3" interfacename="transmission_color" />
</ifgreater>
<ifgreater name="base_color" type="color3">
<input name="value1" type="float" interfacename="transmission" />
<input name="value2" type="float" value="0" />
<input name="in1" type="color3" nodename="transmissionBaseColor" />
<input name="in2" type="color3" nodename="baseColor" />
</ifgreater>
<dot name="metallic" type="float">
<input name="in" type="float" interfacename="metalness" />
</dot>
Expand All @@ -96,9 +108,18 @@
<dot name="thickness" type="float">
<input name="in" type="float" interfacename="transmission_depth" />
</dot>
<dot name="attenuation_color" type="color3">
<input name="in" type="color3" interfacename="transmission_color" />
</dot>
<ifgreater name="transmissionAttenuationColor" type="color3">
<input name="value1" type="float" interfacename="transmission_depth" />
<input name="value2" type="float" value="0" />
<input name="in1" type="color3" interfacename="transmission_color" />
<input name="in2" type="color3" value="1, 1, 1" />
</ifgreater>
<ifgreater name="attenuation_color" type="color3">
<input name="value1" type="float" interfacename="transmission" />
<input name="value2" type="float" value="0" />
<input name="in1" type="color3" nodename="transmissionAttenuationColor" />
<input name="in2" type="color3" value="1, 1, 1" />
</ifgreater>

<!-- Sheen -->
<multiply name="sheen_color" type="color3">
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