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- Date: Mon, 26 Apr 93 16:53:10 -0500
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- From: Larry Coffin <clciris.chem.umr.edu!lcoffin>
- To: cs.Princeton.EDU!rayshade-users
- Subject: CSG speedup (bug fix)
-
-
- Currently the "checkbounds" flag for CSG objects is set to FALSE.
- This results in checking each object in the tree for ray->object intersection
- rather than checking the bounding box of the whole tree (and each branch on
- down the tree) first.
-
- To fix this, change the setting for the "checkbounds" flag from
- FALSE to TRUE in libray/libobj/csg.c in the CsgMethods() routine.
-
- This can result in major speedups for scenes that have alot and/or
- detailed CSG objects. One file (a modified clean.ray) ran in 1/3 the time.
-
-
- ---Larry Coffin
- lcoffin@clciris.chem.umr.edu
-
-
-
- ----------
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