Revision: 74889
http://sourceforge.net/p/brlcad/code/74889
Author: brlcad
Date: 2020-02-11 08:59:47 +0000 (Tue, 11 Feb 2020)
Log Message:
-----------
this is still no bueno, but seems to show we are successfully walking towards
the right point (despite 'inverse failed' blather)
Modified Paths:
--------------
brlcad/trunk/src/librt/primitives/brep/brep.cpp
Modified: brlcad/trunk/src/librt/primitives/brep/brep.cpp
===================================================================
--- brlcad/trunk/src/librt/primitives/brep/brep.cpp 2020-02-11 08:32:23 UTC
(rev 74888)
+++ brlcad/trunk/src/librt/primitives/brep/brep.cpp 2020-02-11 08:59:47 UTC
(rev 74889)
@@ -1003,15 +1003,15 @@
ON_3dPoint p = surf->PointAt(uvpt[0], uvpt[1]);
double dist_to_surf = p.DistanceTo(los_pnt);
- const int MAX_ITERATIONS = 10;
+ const int MAX_ITERATIONS = 1000;
const double stepsize = bs.plate_mode_thickness * 0.1;
int iterations = 0;
while (!NEAR_EQUAL(dist_to_surf, bs.plate_mode_thickness, stepsize) &&
iterations++ < MAX_ITERATIONS) {
if (dist_to_surf > bs.plate_mode_thickness)
- los -= stepsize; /* nudge back a full step */
+ los -= (stepsize * 4.0); /* nudge back -400% step */
else if (dist_to_surf < bs.plate_mode_thickness)
- los += (stepsize * 0.9); /* nudge forward 90% step */
+ los += (stepsize * 0.4); /* nudge forward 40% step */
/* calculate a new exit point distance to surface */
VJOIN1(hp, ray.r_pt, hit.dist + los, ray.r_dir);
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