User guide

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Control (UI) Default Value Function
pin_threads auto Set to auto by default, in which case thread pinning is
only enabled if more than half the logical cores are
being used. Can also be manually set to always on or off
by setting the new global option options.pin_threads to
on, off, or auto.
Note: If client code, (such as a custom shader) spawns
its own threads manually (with pthread_create or
similar), these threads will inherit the same thread
affinity, which breaks the point of spawning threads. In
these situations either set options.pin_threads to off or
create new threads with the Arnold API
AiThreadCreate() which un-pins the created threads.
Misc Settings >Arbitrary
Allows new parameters - those not yet available through
the Katana UI - to be set using an AttributeSet.
Channel Definitions >Output Channels
Texture System
texture_accept_untiled Off
texture_accept_unmipped On When set to On, any attempt to load an unmipped file
produces an error, and aborts the renderer.
texture_automip On If a texture map is in a format not natively mipmapped
(such as jpeg), enabling this option triggers the
automatic generation of a mipmap, which is held in
memory for the duration of the render.
texture_autotile 64 Specifies the size of tiles when using auto-tiling.
texture_conservative_lookups On
texture_diffuse_blur 0.03125 Specifies the amount of blur in texture lookups for
diffuse rays.
texture_failure_retries 0
2 NODES A-C | ARNOLDGLOBALSETTINGS