BPR Passes

When using the BPR renderer, separate passes are automatically available. You can find them in the Render > BPR RenderPass sub-palette.

Render> BPR RenderPass sub-palette

Render> BPR RenderPass sub-palette

To save a particular pass, click on its icon. You will then get a Save As dialog and can save the file to disk in a variety of image formats. For some passes, such as Shadow and Ambient Occlusion, you must turn on the option in the Render > Render Properties sub-palette prior to carrying out the render. In the example above, both AmOc (Ambient Occlusion) and Sss (Sub-surface Scattering) are not available as these options were not turned on.

Using Render Passes

Having separate render passes means that you have more control over the final image, though you do need to use a dedicated image editing program such as Photoshop® to put the passes together, a process called compositing.


Note: the Shaded pass does not have anti-aliasing around the edge of the model, so that the edge appears jagged rather than smooth. This is deliberate. Anti-aliasing (the smoothing effect) mixes the colors of adjacent pixels so for the Shaded layer the edge of the model would contain some of the background color. All you need to do is use the Mask pass to create a mask for compositing and then drop in a background of your choice.