int ufoProcessIsObeyMatteDefined( ufoProcess process_instance);
ufoProcesslsObeyMatteDefined inquires if an optional obey matte raster is connected and set, and may be called within ufoProcessRenderPixel, ufoProcessRenderLine, ufoProcessRenderRectangle, ufoProcessCanAvoidRendering, ufoProcessPreRender, ufoProcessPostRender, ufoProcessPreRenderPass, ufoProcessPostRenderPass, ufoProcessCalcDefinedRectangle, ufoProcessCalcNeedRectangles, ufoProcessCalcDefinedPixelTypes, and ufoProcessSpecifyConvertPixelTypes.
Autodesk Softimage v7.5