Revision: 34628
http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=34628
Author: ton
Date: 2011-02-03 16:31:03 +0000 (Thu, 03 Feb 2011)
Log Message:
-----------
Bugfix #25912
Render bug in spothalo (weird horizontal line).
Appeared to be precision error... even for doubles,
before doing division a check for FLT_EPSILON works
better than DBL_EPSILON (if there's an alternative).
Modified Paths:
--------------
trunk/blender/source/blender/render/intern/source/shadeoutput.c
Modified: trunk/blender/source/blender/render/intern/source/shadeoutput.c
===================================================================
--- trunk/blender/source/blender/render/intern/source/shadeoutput.c
2011-02-03 15:05:43 UTC (rev 34627)
+++ trunk/blender/source/blender/render/intern/source/shadeoutput.c
2011-02-03 16:31:03 UTC (rev 34628)
@@ -154,8 +154,8 @@
static void spothalo(struct LampRen *lar, ShadeInput *shi, float *intens)
{
double a, b, c, disc, nray[3], npos[3];
- float t0, t1 = 0.0f, t2= 0.0f, t3, haint;
- float p1[3], p2[3], ladist, maxz = 0.0f, maxy = 0.0f;
+ double t0, t1 = 0.0f, t2= 0.0f, t3;
+ float p1[3], p2[3], ladist, maxz = 0.0f, maxy = 0.0f, haint;
int snijp, doclip=1, use_yco=0;
int ok1=0, ok2=0;
@@ -202,7 +202,7 @@
maxz*= lar->sh_zfac;
maxy=
lar->imat[0][1]*p1[0]+lar->imat[1][1]*p1[1]+lar->imat[2][1]*p1[2];
- if( fabs(nray[2]) < DBL_EPSILON ) use_yco= 1;
+ if( fabs(nray[2]) < FLT_EPSILON ) use_yco= 1;
}
/* scale z to make sure volume is normalized */
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