Revision: 70422
http://sourceforge.net/p/brlcad/code/70422
Author: brlcad
Date: 2017-11-21 07:31:32 +0000 (Tue, 21 Nov 2017)
Log Message:
-----------
yet another manual vector inverse. this isn't exactly equivalent due to
different near-zero tolerances being used, but should be close enough for ebm.
Modified Paths:
--------------
brlcad/trunk/src/librt/primitives/ebm/ebm.c
Modified: brlcad/trunk/src/librt/primitives/ebm/ebm.c
===================================================================
--- brlcad/trunk/src/librt/primitives/ebm/ebm.c 2017-11-21 06:50:19 UTC (rev
70421)
+++ brlcad/trunk/src/librt/primitives/ebm/ebm.c 2017-11-21 07:31:32 UTC (rev
70422)
@@ -325,25 +325,8 @@
int out_index;
int j;
- /* Compute the inverse of the direction cosines */
- if (!ZERO(rp->r_dir[X])) {
- invdir[X] = 1.0/rp->r_dir[X];
- } else {
- invdir[X] = INFINITY;
- rp->r_dir[X] = 0.0;
- }
- if (!ZERO(rp->r_dir[Y])) {
- invdir[Y] = 1.0/rp->r_dir[Y];
- } else {
- invdir[Y] = INFINITY;
- rp->r_dir[Y] = 0.0;
- }
- if (!ZERO(rp->r_dir[Z])) {
- invdir[Z] = 1.0/rp->r_dir[Z];
- } else {
- invdir[Z] = INFINITY;
- rp->r_dir[Z] = 0.0;
- }
+ /* Compute inverse of the direction cosines */
+ VINVDIR(invdir, rp->r_dir);
/* intersect ray with ideal grid rpp */
VSETALL(P, 0);
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