Relevant to Blender v2.31
A less well known feature of Blender is the Unified Renderer button
in the bottom right corner of the Rendering Buttons
Format Panel (Figure 17.35, “The Unified Renderer button.”).
Blender's default renderer is highly optimized for speed. This has been achieved by subdividing the rendering process into several passes. First the 'normal' materials are handled. Then Materials with transparency (Alpha) are taken into account. Finally Halos and flares are added.
This is fast, but can lead to less than optimum results, especially with Halos. The Unified Renderer, on the other hand, renders the image in a single pass. This is slower, but gives better results, especially for Halos.
Furthermore, since transparent materials are now rendered together with the
conventional ones, Cartoon Edges can be applied to them too, by pressing
All button in the Edge Setting dialog.
If the Unified Renderer is selected an additional group of buttons
appears in the
Output Panel (Figure 17.36, “Unified Renderer additional buttons.”).
Gamma slider is related to the OSA procedure.
Pixel oversamples are blended to generate the final rendered pixel. The conventional
renderer has a Gamma=1, but in the Unified Renderer you can vary this number.
button makes a dialog box appear (Figure 17.37, “Unified Renderer postprocess submenu.”).
From this you can control three kinds of post processing: the
slider defines a constant quantity to be added to the RGB colour value of each pixel.
Positive values make the image uniformly brighter, negative uniformly darker.
Mul slider defines a value by which all RGB values of all pixels are
multiplied. Values greater than 1 make the image brighter, smaller than 1 make the
Gamma slider does the standard gamma contrast correction of any paint