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Rendering with husk - Arnold for Houdini

Environment variables

Most of the kick command-line flags can be set with an environment variable:

Environment Variable Default Value Description
HDARNOLD_bucket_size 24 Bucket size.
HDARNOLD_abort_on_error false Abort on error.
HDARNOLD_log_verbosity 2 Control the amount of log output. (0-5)
HDARNOLD_log_file "" Set a filepath to output logging information to.
HDARNOLD_log_flags_console -1 Override logging flags for console output, if non-negative.
HDARNOLD_log_flags_file -1 Override logging flags for file output, if non-negative.
HDARNOLD_AA_samples 3 Number of AA samples by default.
HDARNOLD_GI_diffuse_samples 2 Number of diffuse samples by default.
HDARNOLD_GI_specular_samples 2 Number of specular samples by default.
HDARNOLD_GI_transmission_samples 2 Number of transmission samples by default.
HDARNOLD_GI_sss_samples 2 Number of sss samples by default.
HDARNOLD_GI_volume_samples 2 Number of volume samples by default.
HDARNOLD_threads -1 Number of Threads for CPU rendering by default.
HDARNOLD_GI_diffuse_depth 1 Diffuse ray depth by default.
HDARNOLD_GI_specular_depth 1 Specular ray depth by default.
HDARNOLD_GI_transmission_depth 8 Transmission ray depth by default.
HDARNOLD_enable_progressive_render true Enable progressive render.
HDARNOLD_progressive_min_AA_samples -4 Minimum AA samples for progressive rendering.
HDARNOLD_enable_adaptive_sampling false Enable adaptive sampling.
HDARNOLD_enable_gpu_rendering false Enable GPU rendering.
HDARNOLD_shutter_start "-0.25f" Shutter start for the camera.
HDARNOLD_shutter_end "0.25f" Shutter end for the camera.
HDARNOLD_profile_file "" Output file for profiling information.
HDARNOLD_report_file "" Output file for the Arnold HTML report file
HDARNOLD_stats_file "" Output file for stats information.
HDARNOLD_plugin_searchpath "" Plugin search path.
HDARNOLD_osl_includepath "" OSL include path.
HDARNOLD_texture_searchpath "" Texture search path.
HDARNOLD_procedural_searchpath "" Procedural search path.
HDARNOLD_auto_generate_tx true Auto-generate Textures to TX.

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