Supported OSL Shader Types

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OctaneRender® supports a subset of the OSL standard, plus a few extensions to use features specific to OctaneRender®.

Unsupported Features

• Point cloud functions.

• Dictionary lookup functions.

• Message passing is generally not supported, except for the built-ins listed under "Octane extensions" (see below).

• Derivatives.

• trace(). For AO like effects, you can add a color input and connect the input pin to a Dirt node.

• [Material](javascript:void(0);.md) shaders and closure variables.

• wavelength color(). Use _gaussian() instead.

• struct variable types.

• The global variables Ps and dPdt.

Partially-Supported Features

• noise() doesn't support 4D noise, and doesn't support the Simplex and Gabor noise types.

• The global variable time always has a value between 0 and 1, and represents the time within a subframe.

• getmessage() and gettextureinfo() must have string literals as attribute names.