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Overview

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VRayTexBitmap allows you to load texture maps in a native to V-Ray manner. Most of the NUKE Nuke nodes will not affect it (color corrections for example), still, it will be faster than the regular Read node. Additionally, this is the only node you can use to load a texture if you wish to export your scene to a .vrscene and render it with V-Ray Standalone.

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Color space – Sets the lookup table (LUT) used to convert from this file to the internal values used by NUKENuke.

default (autodetects the color space based on file extension)
Linear
Gamma corrected – Uses the value from the Gamma slider.
sRGB

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You can convert many common image file formats to tiled OpenEXR files using the the img2tiledexr tool. Conversion to tiled TIFF can be done using the maketx tool from the OpenImageIO library.

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Environment Variables

You can include environment variables in the form ${VAR_NAME} which are replaced with the value of the respective environment variable during rendering. For example, if the file name is specified as ${TEX_PATH}\${PROJ_FOLDER}\mytexture.exr, then V-Ray will look up the environment variables TEX_PATH and PROJ_FOLDER and replace the tags with their values. Suppose that TEX_PATH is set to c:\textures and PROJ_FOLDER is set to proj1, then the final bitmap file name will be expanded as c:\textures\proj1\mytexture.exr

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