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Here's a collection of example materials, in .mtlx format, that cover most of the parameters found in the OpenPBR specification, as suggested in this Slack thread: https://academysoftwarefdn.slack.com/archives/C06365EAQMP/p1698709666974279
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| <?xml version="1.0"?> | ||
| <materialx version="1.38" colorspace="lin_rec709"> | ||
| <surfacematerial name="Aluminum_Brushed" type="material"> | ||
| <input name="surfaceshader" type="surfaceshader" nodename="open_pbr_surface_surfaceshader" /> | ||
| </surfacematerial> | ||
| <open_pbr_surface name="open_pbr_surface_surfaceshader" type="surfaceshader"> | ||
| <input name="base_color" type="color3" value="0.912, 0.914, 0.920" /> | ||
| <input name="base_metalness" type="float" value="1.0" /> | ||
| <input name="specular_color" type="color3" value="0.970, 0.979, 0.988" /> | ||
| <input name="specular_roughness" type="float" value="0.2" /> | ||
| <input name="specular_anisotropy" type="float" value="0.9" /> | ||
| <input name="specular_rotation" type="float" value="0.25" /> | ||
| </open_pbr_surface> | ||
| </materialx> |
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| <?xml version="1.0"?> | ||
| <materialx version="1.38" colorspace="lin_rec709"> | ||
| <surfacematerial name="Car_Paint" type="material"> | ||
| <input name="surfaceshader" type="surfaceshader" nodename="open_pbr_surface_surfaceshader" /> | ||
| </surfacematerial> | ||
| <open_pbr_surface name="open_pbr_surface_surfaceshader" type="surfaceshader"> | ||
| <input name="base_color" type="color3" value="0.1, 0.6, 0.9" /> | ||
| <input name="specular_ior" type="float" value="1.6" /> | ||
| <input name="specular_roughness" type="float" value="0.3" /> | ||
| <input name="coat_weight" type="float" value="1" /> | ||
| <input name="coat_roughness" type="float" value="0.02" /> | ||
| <input name="coat_ior" type="float" value="1.6" /> | ||
| </open_pbr_surface> | ||
| </materialx> |
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| <?xml version="1.0"?> | ||
| <materialx version="1.38" colorspace="lin_rec709"> | ||
| <surfacematerial name="Glass" type="material"> | ||
| <input name="surfaceshader" type="surfaceshader" nodename="open_pbr_surface_surfaceshader" /> | ||
| </surfacematerial> | ||
| <open_pbr_surface name="open_pbr_surface_surfaceshader" type="surfaceshader"> | ||
| <input name="specular_roughness" type="float" value="0.0" /> | ||
| <input name="specular_ior" type="float" value="1.52" /> | ||
| <input name="transmission_weight" type="float" value="1.0" /> | ||
| <input name="transmission_dispersion_abbe_number" type="float" value="64" /> | ||
| <input name="transmission_dispersion_scale" type="float" value="1.0" /> | ||
| </open_pbr_surface> | ||
| </materialx> |
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| <?xml version="1.0"?> | ||
| <materialx version="1.38" colorspace="lin_rec709"> | ||
| <surfacematerial name="Honey" type="material"> | ||
| <input name="surfaceshader" type="surfaceshader" nodename="open_pbr_surface_surfaceshader" /> | ||
| </surfacematerial> | ||
| <open_pbr_surface name="open_pbr_surface_surfaceshader" type="surfaceshader"> | ||
| <input name="specular_roughness" type="float" value="0.0" /> | ||
| <input name="specular_ior" type="float" value="1.504" /> | ||
| <input name="transmission_weight" type="float" value="1.0" /> | ||
| <input name="transmission_color" type="color3" value="0.83, 0.4, 0.04" /> | ||
| <input name="transmission_depth" type="float" value="2" /> | ||
| <input name="transmission_scatter" type="color3" value="0.9, 0.9, 0.9" /> | ||
| </open_pbr_surface> | ||
| </materialx> |
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| <?xml version="1.0"?> | ||
| <materialx version="1.38" colorspace="lin_rec709"> | ||
| <surfacematerial name="Ketchup" type="material"> | ||
| <input name="surfaceshader" type="surfaceshader" nodename="open_pbr_surface_surfaceshader" /> | ||
| </surfacematerial> | ||
| <open_pbr_surface name="open_pbr_surface_surfaceshader" type="surfaceshader"> | ||
| <input name="base_color" type="color3" value="0.164, 0.006, 0.002" /> | ||
| <input name="specular_roughness" type="float" value="0" /> | ||
| <input name="specular_ior" type="float" value="1.3" /> | ||
| <input name="subsurface_weight" type="float" value="1.0" /> | ||
| <input name="subsurface_color" type="color3" value="0.164, 0.006, 0.002" /> | ||
| <input name="subsurface_radius_scale" type="color3" value="0.476, 0.058, 0.039" /> | ||
| </open_pbr_surface> | ||
| </materialx> |
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| <?xml version="1.0"?> | ||
| <materialx version="1.38" colorspace="lin_rec709"> | ||
| <surfacematerial name="Light_Bulb" type="material"> | ||
| <input name="surfaceshader" type="surfaceshader" nodename="open_pbr_surface_surfaceshader" /> | ||
| </surfacematerial> | ||
| <open_pbr_surface name="open_pbr_surface_surfaceshader" type="surfaceshader"> | ||
| <input name="emission_color" type="color3" value="1.000, 0.415, 0.099" /> | ||
| <input name="emission_luminance" type="float" value="10000" /> | ||
| </open_pbr_surface> | ||
| </materialx> |
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| <?xml version="1.0"?> | ||
| <materialx version="1.38" colorspace="lin_rec709"> | ||
| <surfacematerial name="Pearl" type="material"> | ||
| <input name="surfaceshader" type="surfaceshader" nodename="open_pbr_surface_surfaceshader" /> | ||
| </surfacematerial> | ||
| <open_pbr_surface name="open_pbr_surface_surfaceshader" type="surfaceshader"> | ||
| <input name="base_color" type="color3" value="0.8, 0.75, 0.7" /> | ||
| <input name="specular_roughness" type="float" value="0.35" /> | ||
| <input name="specular_ior" type="float" value="1.5" /> | ||
| <input name="subsurface_weight" type="float" value="1.0" /> | ||
| <input name="subsurface_color" type="color3" value="0.8, 0.75, 0.7" /> | ||
| <input name="subsurface_radius_scale" type="color3" value="0.3, 0.5, 0.3" /> | ||
| <input name="coat_weight" type="float" value="1" /> | ||
| <input name="coat_roughness" type="float" value="0.15" /> | ||
| <input name="coat_ior" type="float" value="1.68" /> | ||
| <input name="thin_film_thickness" type="float" value="420" /> | ||
| <input name="thin_film_ior" type="float" value="2" /> | ||
| </open_pbr_surface> | ||
| </materialx> |
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| <?xml version="1.0"?> | ||
| <materialx version="1.38" colorspace="lin_rec709"> | ||
| <surfacematerial name="Soap_Bubble" type="material"> | ||
| <input name="surfaceshader" type="surfaceshader" nodename="open_pbr_surface_surfaceshader" /> | ||
| </surfacematerial> | ||
| <open_pbr_surface name="open_pbr_surface_surfaceshader" type="surfaceshader"> | ||
| <input name="specular_roughness" type="float" value="0" /> | ||
| <input name="specular_ior" type="float" value="1.0" /> | ||
| <input name="transmission_weight" type="float" value="1.0" /> | ||
| <input name="thin_film_thickness" type="float" value="500" /> | ||
| <input name="thin_film_ior" type="float" value="1.4" /> | ||
| <input name="geometry_thin_walled" type="boolean" value="true" /> | ||
| </open_pbr_surface> | ||
| </materialx> |
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| @@ -0,0 +1,47 @@ | ||
| <?xml version="1.0"?> | ||
| <materialx version="1.38" colorspace="lin_rec709"> | ||
| <surfacematerial name="Default" type="material"> | ||
| <input name="surfaceshader" type="surfaceshader" nodename="open_pbr_surface_surfaceshader" /> | ||
| <input name="displacementshader" type="displacementshader" value="" /> | ||
| </surfacematerial> | ||
| <open_pbr_surface name="open_pbr_surface_surfaceshader" type="surfaceshader"> | ||
| <input name="base_weight" type="float" value="1.0" /> | ||
| <input name="base_color" type="color3" value="0.8, 0.8, 0.8" /> | ||
| <input name="base_roughness" type="float" value="0.0" /> | ||
| <input name="base_metalness" type="float" value="0.0" /> | ||
| <input name="specular_weight" type="float" value="1.0" /> | ||
| <input name="specular_color" type="color3" value="1, 1, 1" /> | ||
| <input name="specular_roughness" type="float" value="0.3" /> | ||
| <input name="specular_ior" type="float" value="1.5" /> | ||
| <input name="specular_ior_level" type="float" value="0.5" /> | ||
| <input name="specular_anisotropy" type="float" value="0.0" /> | ||
| <input name="specular_rotation" type="float" value="0.0" /> | ||
| <input name="transmission_weight" type="float" value="0.0" /> | ||
| <input name="transmission_color" type="color3" value="1, 1, 1" /> | ||
| <input name="transmission_depth" type="float" value="0.0" /> | ||
| <input name="transmission_scatter" type="color3" value="0, 0, 0" /> | ||
| <input name="transmission_scatter_anisotropy" type="float" value="0.0" /> | ||
| <input name="transmission_dispersion" type="float" value="0.0" /> | ||
| <input name="subsurface_weight" type="float" value="0" /> | ||
| <input name="subsurface_color" type="color3" value="0.8, 0.8, 0.8" /> | ||
| <input name="subsurface_radius" type="float" value="1.0" /> | ||
| <input name="subsurface_radius_scale" type="color3" value="1.0, 0.5, 0.25" /> | ||
| <input name="subsurface_anisotropy" type="float" value="0.0" /> | ||
| <input name="fuzz_weight" type="float" value="0.0" /> | ||
| <input name="fuzz_color" type="color3" value="1, 1, 1" /> | ||
| <input name="fuzz_roughness" type="float" value="0.5" /> | ||
| <input name="coat_weight" type="float" value="0.0" /> | ||
| <input name="coat_color" type="color3" value="1, 1, 1" /> | ||
| <input name="coat_roughness" type="float" value="0.0" /> | ||
| <input name="coat_anisotropy" type="float" value="0.0" /> | ||
| <input name="coat_rotation" type="float" value="0.0" /> | ||
| <input name="coat_ior" type="float" value="1.6" /> | ||
| <input name="coat_ior_level" type="float" value="0.5" /> | ||
| <input name="thin_film_thickness" type="float" value="0" /> | ||
| <input name="thin_film_ior" type="float" value="1.5" /> | ||
| <input name="emission_luminance" type="float" value="0.0" /> | ||
| <input name="emission_color" type="color3" value="1, 1, 1" /> | ||
| <input name="geometry_opacity" type="color3" value="1, 1, 1" /> | ||
| <input name="geometry_thin_walled" type="boolean" value="false" /> | ||
| </open_pbr_surface> | ||
| </materialx> |
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| <?xml version="1.0"?> | ||
| <materialx version="1.38" colorspace="lin_rec709"> | ||
| <surfacematerial name="Velvet" type="material"> | ||
| <input name="surfaceshader" type="surfaceshader" nodename="open_pbr_surface_surfaceshader" /> | ||
| </surfacematerial> | ||
| <open_pbr_surface name="open_pbr_surface_surfaceshader" type="surfaceshader"> | ||
| <input name="base_color" type="color3" value="0.02, 0.02, 0.02" /> | ||
| <input name="specular_roughness" type="float" value="0.8" /> | ||
| <input name="fuzz_weight" type="float" value="1" /> | ||
| <input name="fuzz_color" type="color3" value="0.4, 0.4, 0.4" /> | ||
| <input name="fuzz_roughness" type="float" value="0.2" /> | ||
| </open_pbr_surface> | ||
| </materialx> |