Changeset 4385 in orxonox.OLD for orxonox/trunk/src/lib/graphics

Timestamp:

May 29, 2005, 10:19:43 PM (20 years ago)

Author:

bensch

Message:

orxonox/trunk: small efficiency update

File:

• orxonox/trunk/src/lib/graphics/particles/particle_system.cc (modified) (2 diffs)

orxonox/trunk/src/lib/graphics/particles/particle_system.cc

@@ -242 +242 @@
     {
       // applying force to the System.
-      tickPart->velocity += tickPart->extForce * tickPart->mass;
+      if (likely (tickPart->mass > 0.0))
+        tickPart->velocity += tickPart->extForce / tickPart->mass;
 
       // rendering new position.
@@ -271 +272 @@
         tickPart->velocity = tickPart->velocity * this->conserve;
       // find out if we have to delete tickPart
-      if ((tickPart->lifeCycle += dt/tickPart->lifeTime) >= 1.0)
+      if (unlikely((tickPart->lifeCycle += dt/tickPart->lifeTime) >= 1.0))
         {
           // remove the particle from the list