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The Textures group of controls lets you specify how to handle texture files in Arnold.

 


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Tx Generation

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MultiExcerptNametx_generation

Tx is a tiled and mipmapped texture format, which will dramatically improve time to the first pixel, overall render time, and memory usage. Therefore converting textures to Tx files is highly recommended.

You can choose your preferred workflow of generating Tx textures:

  • use preferences: Use the settings from defined in the global Preferences.

 

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MultiExcerptNametx_generation_options
  • none: No Tx files are generated, the original textures are used. Note that this mode is recommended is special cases only because it can hurt performance.
  • manual: Use the Tx Manager to generate Tx files manually when needed (e.g.original texture has been modified, color space has been changed, etc.). Existing Tx files are used in the render instead of the original images.
  • auto: Textures are automatically converted to Tx files before rendering the scene. Textures are converted from the image color space to the render color space. Each 8-bit texture is converted to 16-bit float data type images to avoid quantization errors in dark tones
    This are the options passed to the maketx tool:
Code Block
-u --unpremult --oiio (--colorconvert [image_space] [render_space] --colorconfig [config]) (--format exr -d half --compression dwaa)

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Accept Unmipped

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MultiExcerptNametexture_accept_unmipped
nopaneltrue
PageWithExcerptA5NodeRef:options

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Auto mipmap

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MultiExcerptNametexture_automip
nopaneltrue
PageWithExcerptA5NodeRef:options

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Accept Untiled

If a texture map file is not natively mip-mapped, the render will give an error unless this option is checked.

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Auto-

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tile

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MultiExcerptNametexture_autotile
nopaneltrue
PageWithExcerptA5NodeRef:options

Textures - settings

This is the size of the tiles when using auto-tiling. Bigger values mean less frequent texture loads but use more memory. 

Textures - settings

The maximum amount of memory to be used for texture caching.

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Tile Size

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MultiExcerptNameTile Size
nopaneltrue
PageWithExcerptA5AFMUG:Textures (settings)

Max Cache Size (MB)

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MultiExcerptNameMax Cache Size (MB)
nopaneltrue
PageWithExcerptA5AFMUG:Textures (settings)

Max Open Files

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MultiExcerptNametexture_max_open_files
nopaneltrue
PageWithExcerptA5NodeRef:options
 


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