SItoA 7.2.5.0

Be sure to read the Arnold core release notes from version 7.2.2.1 to 7.2.5.0 to see all the performance improvements and other changes that comes "for free" with the updated core.

SItoA specific improvements

• Support for multi-output shaders in the automatic shader building.
• Support alpha in the PNG driver (new in v7.2.4 core)
• Added skip_alpha setting to the TIFF driver.
• Small UI enhancements in Render Settings.

Incompatible / Behavior changes

• The unpremult_alpha parameter in the TIFF settings has been renamed to output_tiff_unpremult_alpha.
• The state_float, state_int, state_vector and distance shader now have multiple outputs, and the main output of those shaders have been renamed. This means that they will be disconnected when opening old scenes. Just connect the first port of them to get the old look back.

Bugfixes

• None

Build system fixes / changes:

• Updated several tests that used the above multi output shaders.

Passes testsuite.

SItoA 7.2.2.0

This update brings support for the following new Arnold features from Arnold 7.1.4 to 7.2.2

• Global light sampling (v7.2.1 and v7.2.2)
• New parameter enable_sky in physical_sky to disable the sky. (v7.2.0)
• New Autobump for shadow and SSS rays in Arnold Parameters (v7.2.0 and v7.2.2)
• New distance shader (v7.2.1)
• New wset and uvw_matrix parameters added to uv_transform (v7.2.1)
• The set_transform operator can now handle motion blur correctly. (v7.2.1 and v7.2.2)

SItoA improvements unrelated to Arnold version

• A lot of operators had their inputs exposed to be linked. That was not supported and has now been fixed.

Incompatible / Behavior changes

• The global setting Use Autobump in SSS is now removed. If you had it enabled in an old scene, you now need to enable it on the objects Arnold Parameters instead to get the same look.
• SItoA versioning is now using four numbers like all other *toA plugins.

Bugfixes

• None

Build system fixes / changes:

• Updated Autobump in SSS test (0126) to use the new autobump settings.
• Updated operators test (0268) to use motion blur.

Passes testsuite.

SItoA 7.1.4

This update brings support for the following new Arnold features from Arnold 7.1.0 to 7.1.4

• Per axis texture on triplanar (v7.1)
• Flip opposite on triplanar (v7.1)
• Dual lobe phase function in standard_volume (v7.1.3)
• Physically correct volume emission scaling in standard_volume (v7.1.3)
• Blackbody intensity control in standard_volume (v7.1.3)
• Automatic generation of TX files (v7.1.4)
• Autodesk Analytics Program (ADP) settings. (v7.1.4)

SItoA improvements unrelated to Arnold version

• Exposed B-Spline and Linear interpolation basis of ICE curves.
• Support for shaders with multiple outputs.
• To demonstrate the new OSL shader build system. I included 4 previously unsupported original Softimage shaders, 2 of which have multiple outputs to also demonstrate that:
  • sib_boolean_to_color
  • sib_color_to_scalars
  • sib_vector_to_color
  • sib_vector_to_scalars

Incompatible / Behavior changes

• Pinned curves. SItoA now internally uses the wrap_mode setting on curves. This means Arnold is creating first and last segment of smooth curves at render time so they are not stored in the ass-file anymore, saving disk space (v7.1.3)
• Small UI fixes to standard_volume and checkerboard

Bugfixes

• None

Build system fixes / changes:

• Support for building standard Softimage shaders as OSL shaders.
• Patches newer versions of AdClm.
• Added exr and tx version of noIcon to test suite and updated tests to use it.
• New test 0274 to test shaders and shader compounds with multiple outputs.
• Small enhancements to dev env helpers.

SItoA 7.0.0

This update brings support for the following new Arnold features from Arnold 6.2 and 7.0

• OCIO default color manager
• EXR Multipart support
• Denoising imagers:
  • imager_denoiser_noice Arnold Denoiser
  • imager_denoiser_oidn Intel Open Image Denoise
  • imager_denoiser_optix nVidia Optix denoiser
• imager_lens_effects now has Bloom
• imager_tonemap got support for LUTs + UI enhancements
• ignore_imagers render option

Incompatible / Behavior changes

• Default color manager has been changed to use OCIO and default render colorspace has changed to ACEScg.
• GPU settings is now always exported
• use_existing_tx is now handled by Arnold core instead of the SItoA plugin

Bugfixes

• Made Arnold handle if shaders are linkable or not. This made some more parameters linkable that was incorrectly set to not be linkable before.

Build system fixes / changes:

• Support for Windows Terminal
• Fixed a deadlock bug in testsuite
• Updated all test suite reference images due to the color manager change making them not pass anymore.

Built with Arnold 7.0.0.0

v4.1.0

Last official version from Autodesk / Solid Angle.