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standard_surface_marble_solid.mtlx
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<?xml version="1.0"?>
<materialx version="1.39" colorspace="lin_rec709">
<nodegraph name="NG_marble1">
<input name="base_color_1" type="color3" value="0.8, 0.8, 0.8" uiname="Color 1" uifolder="Marble Color" />
<input name="base_color_2" type="color3" value="0.1, 0.1, 0.3" uiname="Color 2" uifolder="Marble Color" />
<input name="noise_scale_1" type="float" value="6.0" uisoftmin="1.0" uisoftmax="10.0" uiname="Scale 1" uifolder="Marble Noise" />
<input name="noise_scale_2" type="float" value="4.0" uisoftmin="1.0" uisoftmax="10.0" uiname="Scale 2" uifolder="Marble Noise" />
<input name="noise_power" type="float" value="3.0" uisoftmin="1.0" uisoftmax="10.0" uiname="Power" uifolder="Marble Noise" />
<input name="noise_octaves" type="integer" value="3" uisoftmin="1" uisoftmax="8" uiname="Octaves" uifolder="Marble Noise" />
<position name="obj_pos" type="vector3" />
<dotproduct name="add_xyz" type="float">
<input name="in1" type="vector3" nodename="obj_pos" />
<input name="in2" type="vector3" value="1, 1, 1" />
</dotproduct>
<multiply name="scale_xyz" type="float">
<input name="in1" type="float" nodename="add_xyz" />
<input name="in2" type="float" interfacename="noise_scale_1" />
</multiply>
<multiply name="scale_pos" type="vector3">
<input name="in1" type="vector3" nodename="obj_pos" />
<input name="in2" type="float" interfacename="noise_scale_2" />
</multiply>
<fractal3d name="noise" type="float">
<input name="octaves" type="integer" interfacename="noise_octaves" />
<input name="position" type="vector3" nodename="scale_pos" />
</fractal3d>
<multiply name="scale_noise" type="float">
<input name="in1" type="float" nodename="noise" />
<input name="in2" type="float" value="3.0" />
</multiply>
<add name="sum" type="float">
<input name="in1" type="float" nodename="scale_xyz" />
<input name="in2" type="float" nodename="scale_noise" />
</add>
<sin name="sin" type="float">
<input name="in" type="float" nodename="sum" />
</sin>
<multiply name="scale" type="float">
<input name="in1" type="float" nodename="sin" />
<input name="in2" type="float" value="0.5" />
</multiply>
<add name="bias" type="float">
<input name="in1" type="float" nodename="scale" />
<input name="in2" type="float" value="0.5" />
</add>
<power name="power" type="float">
<input name="in1" type="float" nodename="bias" />
<input name="in2" type="float" interfacename="noise_power" />
</power>
<mix name="color_mix" type="color3">
<input name="bg" type="color3" interfacename="base_color_1" />
<input name="fg" type="color3" interfacename="base_color_2" />
<input name="mix" type="float" nodename="power" />
</mix>
<output name="out" type="color3" nodename="color_mix" />
</nodegraph>
<standard_surface name="SR_marble1" type="surfaceshader">
<input name="base" type="float" value="1" />
<input name="base_color" type="color3" nodegraph="NG_marble1" output="out" />
<input name="specular_roughness" type="float" value="0.1" />
<input name="subsurface" type="float" value="0.4" />
<input name="subsurface_color" type="color3" nodegraph="NG_marble1" output="out" />
</standard_surface>
<surfacematerial name="Marble_3D" type="material">
<input name="surfaceshader" type="surfaceshader" nodename="SR_marble1" />
</surfacematerial>
</materialx>