star-vx

commit 40830282abcb264403f2725f64250b479a53fc03
parent bd80b3731ca4a491cf230105912c7935a0173fef
Author: Vincent Forest <vincent.forest@meso-star.com>
Date:   Sat, 15 Sep 2018 14:57:02 +0200

Fix issues in the ray-tracing of the binary tree

Diffstat:
M
src/svx_bintree_trace_ray.c
 | 
4
++--

1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/svx_bintree_trace_ray.c b/src/svx_bintree_trace_ray.c
@@ -116,7 +116,7 @@ bintree_trace_ray
   /* Transform the direction in the normalized bintree space */
   dir = (float)(ray_dir[iaxis] * rcp_btreesz);
   /* Define if the 1D ray direction is roughly null */
-  null_dir = eq_epsf(dir, 0, 1.e-6f);
+  null_dir = eq_eps(ray_dir[iaxis], 0, 1.e-6);
 
   /* The ray starts outside the binary tree and point outward the bin tree: it
    * cannot intersect the binary tree */
@@ -175,7 +175,7 @@ bintree_trace_ray
 
       if(is_leaf || challenge) {
         struct svx_hit hit_tmp;
-        const float upp = low + scale_exp2;
+        const float upp = MMIN(low + scale_exp2, pos_max) ;
         const double t_min = null_dir ? ray_range[0] : (pos_min - org) * ts;
         const double t_max = null_dir ? ray_range[1] : (upp - org) * ts;
         const struct buffer_index iattr = buffer_get_child_attr_index