[Radiance-general] colorpict modifiers in instances and frozen octrees?

[Georg Mischler]

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?

I'd certainly hope so! (though I'm too lazy to test reight now)
Greg?


> I have a floor build of tiles. A tile here is an
> instance, refering to an octree which is made from a rad-file describing the
> geometry at 0;0;0 with a colorpict modifier (which also defaults to 0;0;0). I
> use these instances with replmarks, so I should get the tiles with their
> pattern transformed to the points defined by the markers? Or will replmarks
> transform only the geometry to the triangle marker's position, not it's
> colorpict modifier?

As a principle, replmarks will transform everything. After all, It
just generates the appropriate xform commands or instance primitives
in the output.

Did you verify that a single tile shows the pattern when viewed
eg. with objview? Just to eliminate simple mistakes like mapping
to the wrong side of it etc...

As another remark: For very simple objects like this, instances
create more overhead than they are worth. Consider using the -x
argument with the scene file instead of -i with the octree.
Oh, and I hope you're not using the -m parameter to replmarks...


-schorsch

-- 
Georg Mischler  --  simulations developer  --  schorsch at schorsch.com
+schorsch.com+  --  lighting design tools  --  http://www.schorsch.com/