Advanced Settings 21
Why advanced settings?
There are render settings that do not belong to any other category or section. They provide access to general optimization as well as changing the overall behavior of the rendering process.
Shading Rate : A value of one will provide near pixel level details as seen from the render camera. Lower values provide additionally finer details and values above one can be useful for faster preview calculations. May be overridden by attributes found in Properties > Object > Shading and Visibility > Override Default Shading Rate. Please note that in RIS mode, the shading rate mainly affects how an object is tesellated by the renderer, and this typically only comes into play when displacement is used.
Cache Sizes : These settings control the sizes of several caches Renderman uses while rendering. Under most situations these do not need to be altered unless errors are being generated.
Dark Falloff : This feature can potentially speed up rendering by making the integrator spend less time working on darker areas of the image.
Pixel Filter: This setting determines the pixel filter that will be used to assemble the final output image. Gaussian is a good default choice as it gives a smooth image with good detail retention. Other filters may produce a sharper image, but this can result in halos or ringing around high contrast areas.
Size X: The size of the horizontal region the filter will sample from.
Size Y: The size of the vertical region the filter will sample from.
This setting determines how the render engine fills the pixels in the output image. The random option is memory inefficient and is not recommended.
NOTE: Some render features require specific bucket orders to work correctly. For instance, recovery will not work with Spiral, Hilbert or Random modes. A good rule of thumb is to only use Hilbert, Spiral or Random mode if you are rendering to the 'it' viewer.
Output Stats : Used to print detailed rendering statistics to /(Output Directory)/stats.xml after rendering. This XML file can be opened with a web browser such as Google Chrome
Open Last Stats: Used to conveniently open statistics file (if it exists).
Open last RIB Scene File: Opens the last .rib file generated by the exporter.
Always Recompile Textures : Under normal circumstances the exporter will run the txmake utility only on textures that have changed since the last render. This saves valuable time during the export process. Enabling this checkbox forces the utility to run on each texture every time the render button is pressed.
Cache RIB Generation: Under normal circumstances, the exporter will only generate .rib files for the geometry objects that have been changed since the last render. This can also save time during the export process. Enabling this checkbox forces the exporter to generate .rib files for all objects and materials every time the render button is pressed.
Rendering Threads: Used to limit the amount of processor cores available to the rendering program. A value of -1 will use all cores except one, which may allow better interactivity during rendering. The number 0 will use all available cores and is suggested for final renders. When rendering internally, this also determines the thread count for the denoiser.