[Radiance-general] Re: colorpict modifiers in instances and frozen

[Greg Ward]

Lars O. Grobe wrote:
> One more question regarding this topic, if I apply a colorpict to an 
> object,
> and use this as instance, will the transformations of the instance be 
> applied
> to the pattern, too?

Only if the colorpict pattern was included in the original file you 
used to create your octree instance.  If it is defined in a separate 
material file included with the scene containing the instance, the 
transformation will not be applied the same way.

You really should follow Schorsch's advice also about when to use the 
instance primitive.  There really needs to be a help file or something 
on instances, and I seem to remember writing something like this 
somewhere, but now I can't even find it...  The rule of thumb I use is 
that there have to be at least 200 geometric primitives in an object 
before it's worth making an instance.  Otherwise, the overhead of 
tracing rays through instanced octrees negates the memory savings.

Replmarks replaces the markers with transformed scene files (or 
instances), and as long as you put the related colorpict's in the 
transformed scene files (or instances), and not in the replmarks input, 
you should be OK.