adding mirror plane options other than auto

[laserbrain_demo] / src / metascene.cc

diff --git a/src/metascene.cc b/src/metascene.cc
index c467420..09527e9 100644 (file)
--- a/src/metascene.cc
+++ b/src/metascene.cc
@@ -223,25 +223,30 @@ int MetaScene::calc_mirror_planes()
                                const Mesh *mesh = ((ObjMesh*)obj)->mesh;
                                if(!mesh) continue;
 
-                               // assume the object is actually flat, so grab the first triangle and make a plane
-                               Triangle face = Triangle(0, (const Vec3*)mesh->get_attrib_data(MESH_ATTR_VERTEX),
-                                               mesh->get_index_data());
-                               face.calc_normal();
-
                                FlatMirror *mir = new FlatMirror;
-                               mir->plane.pt = face.v[0];
-                               mir->plane.normal = face.normal;
                                mir->reflect = obj->mtl.reflect;
 
+                               if(obj->mtl.flat_mirror == MTL_MIRROR_AUTO) {
+                                       // assume the object is actually flat, so grab the first triangle and make a plane
+                                       Triangle face = Triangle(0, (const Vec3*)mesh->get_attrib_data(MESH_ATTR_VERTEX),
+                                                       mesh->get_index_data());
+                                       face.calc_normal();
+
+                                       mir->plane.pt = face.v[0];
+                                       mir->plane.normal = face.normal;
+                               } else {
+                               }
+
                                // check to see if we have found this mirror plane already
                                bool found = false;
                                FlatMirror *node = mirrors;
                                while(node) {
-                                       if(fabs(dot(mir->plane.normal, node->plane.normal)) < 1e-4 &&
+                                       if(1.0f - dot(mir->plane.normal, node->plane.normal) < 1e-4f &&
                                                        fabs(dot(mir->plane.normal, normalize(mir->plane.pt - node->plane.pt))) < 1e-4) {
                                                found = true;
                                                break;
                                        }
+                                       node = node->next;
                                }
 
                                if(!found) {