This page provides information on V-Ray Attributes that can be added to standard Maya textures.
Additional V-Ray attributes can be added to some of the standard Maya textures to specify additional properties through the Attributes > VRay menu of the Attribute Editor while the texture is selected.
||Select texture|| > Attribute Editor > Attributes menu > VRay > (select attribute set)
This group of attributes specifies additional color conversions when the bitmap is read from disk in order to bring its color data to linear color space (linear in the physical sense, not perceptual). It can be added to File, VRayPTex, and Substance textures.
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This attribute tells V-Ray that the texture may contain negative colors. Normally V-Ray clips negative texture values as they are invalid for most shading operations. However in some cases (e.g. for displacement), negative values are useful. Note that you can also control negative shader colors globally from the Materials section of the Overrides tab in the V-Ray settings. It can be added to File and Substance textures.
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This group of attributes can be added to File and Substance textures to control their filtering.
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For example, if a File node is used and Override Texture Filter is off or not added, V-Ray looks at the Maya Filter Type attribute. Here's how V-Ray translates the Maya filters to V-Ray filters:
Maya Filter Type | V-Ray Filter | Support for tiled images |
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Off | Smooth | Uses tiles only from the largest mipmap level |
Mipmap, Box, Quadratic | Smooth with mipmaps | Supports tiled mipmapped images |
Quartic, Gaussian | SAT | Loads the whole image in memory like a normal scanline image |
This group of attributes can be added to Substance textures to control the internal bitmap storage when rendered with V-Ray. Note that this feature depends largely on the ability of the Substance engine itself to provide the data with the required precision.
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This group of attributes can be added to File and VRayPtex textures and specifies additional options for .ifl files.
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This attribute group can be added to File nodes only. When using an .exr with the File node as Projection, make sure to enable this option, otherwise the overscanned pixels will not be included in the projection.
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When a texture is assigned as Projection, additional V-Ray attributes become available for the Projection node through the Attributes > VRay menu of the Attribute Editor.
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This example shows a projection that has the Include overscan option switched on compared to the same projection with the option switched off.
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This group of attributes can be added to samplerInfo nodes to make available several additional outputs. See the Maya Sampler Info Node with Additional V-Ray Outputs page for examples and additional information.
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