2008

NOTE After 3ds Max processes Refine Iterations, Initial Quality is disabled and you
can’t change it until you click Reset or Reset All.
Process Refine Iterations Stored in Objects Each object has a radiosity
property called Refine Iterations. Each time you refine an object selection, the
number of steps stored with these objects is incremented.
When you reset the radiosity solution and then start it again, the steps for
each objects are refined automatically, provided this toggle is turned on. This
is useful when you are creating animations, when the radiosity needs to be
processed at every frame, and the same level of quality between frames has
to be maintained.
Update Data When Required on Start When on, the radiosity engine must
be reset and then recalculated if the solution is invalidated. In this case, the
Start menu changes to read Update & Start. When this is pressed, the radiosity
solution is reset and the calculation starts over again.
When this toggle is off, the radiosity solution does not need to be reset if it is
invalidated. You can continue processing your scene with the invalid solution.
NOTE The radiosity solution is invalidated any time an object or light is added,
removed, moved, or altered in any way.
Interactive Tools group
The options in this group help you adjust the display of the radiosity solution
in the viewport and in the rendered output. These controls take effect
immediately on an existing radiosity solution and do not require any additional
processing for you to see their effects.
Indirect Light Filtering Reduces the amount of noise between surface elements
by averaging the indirect lighting levels with the surrounding elements. A
value of 3 or 4 is usually sufficient. If you use too high a value, you risk losing
detail in the scene. Because Indirect Light Filtering is interactive, you can
readily evaluate the result and adjust it as you need.
Direct Light Filtering Reduces the amount of noise between surface elements
by averaging the direct lighting levels with the surrounding elements. A value
of 3 or 4 is usually sufficient. If you use too high a value, you risk losing detail
in the scene. Direct Light Filtering is interactive, so you can readily evaluate
the result and adjust it as you need.
6006 | Chapter 18 Rendering