Vec3f QuadParticleSystemDrawer::getQuadUpDir(DrawEnv *pEnv,
ParticleSystemUnrecPtr System,
UInt32 Index,
const Matrix& CameraToObject )
{
Vec3f Direction;
switch(getUpSource())
{
case UP_POSITION_CHANGE:
Direction = System->getPositionChange(Index);
Direction.normalize();
break;
case UP_VELOCITY_CHANGE:
Direction = System->getVelocityChange(Index);
Direction.normalize();
break;
case UP_VELOCITY:
Direction = System->getVelocity(Index);
Direction.normalize();
break;
case UP_ACCELERATION:
Direction = System->getAcceleration(Index);
Direction.normalize();
break;
case UP_PARTICLE_NORMAL:
Direction = System->getNormal(Index);
break;
case UP_STATIC:
Direction = getUp();
break;
case UP_VIEW_DIRECTION:
default:
{
Direction.setValues(CameraToObject[1][0],CameraToObject[1][1],CameraToObject[1][2]);
break;
}
}
return Direction;
}
Vec3f QuadParticleSystemDrawer::getQuadUpDir(DrawEnv *pEnv, ParticleSystemUnrecPtr System, UInt32 Index)
{
Vec3f Direction;
switch(getUpSource())
{
case UP_POSITION_CHANGE:
Direction = System->getPositionChange(Index);
break;
case UP_VELOCITY_CHANGE:
Direction = System->getVelocityChange(Index);
break;
case UP_VELOCITY:
Direction = System->getVelocity(Index);
break;
case UP_ACCELERATION:
Direction = System->getAcceleration(Index);
break;
case UP_PARTICLE_NORMAL:
Direction = System->getNormal(Index);
break;
case UP_STATIC:
Direction = getUp();
break;
case UP_VIEW_DIRECTION:
default:
{
Matrix ModelView(pEnv->getCameraViewing());
ModelView.mult(pEnv->getObjectToWorld());
Direction.setValues(ModelView[0][1],ModelView[1][1],ModelView[2][1]);
break;
}
}
return Direction;
}
