Changeset 4998 in orxonox.OLD for orxonox/trunk/src/world_entities/world_entity.cc

Timestamp:

Aug 13, 2005, 7:19:51 PM (20 years ago)

Author:

bensch

Message:

orxonox/trunk: more optimizations of the Quaternion Class.
Now the 3D-rotation is much faster through this code:

Vector tmpRot = this→getAbsDir().getSpacialAxis();
glRotatef (this→getAbsDir().getSpacialAxisAngle(), tmpRot.x, tmpRot.y, tmpRot.z );

instead of the old Matrix-approach. furthermore glRotate is optimized much better in openGL as is clearly stated in the red book

also implemented some other really useless functions for Quaternion

File:

• orxonox/trunk/src/world_entities/world_entity.cc (modified) (2 diffs)

orxonox/trunk/src/world_entities/world_entity.cc

@@ -179 +179 @@
   glMatrixMode(GL_MODELVIEW);
   glPushMatrix();
-  float matrix[4][4];
-
   /* translate */
   glTranslatef (this->getAbsCoor ().x,
@@ -186 +184 @@
                 this->getAbsCoor ().z);
   /* rotate */
-  this->getAbsDir ().matrix (matrix);
-  glMultMatrixf((float*)matrix);
+  Vector tmpRot = this->getAbsDir().getSpacialAxis();
+  glRotatef (this->getAbsDir().getSpacialAxisAngle(), tmpRot.x, tmpRot.y, tmpRot.z );
 
   if (this->obbTree)