Muzzle Flash

Xenocide · Post by **Xenocide** » Thu Jun 17, 2004 10:45 pm

Ok, I'm trying to set it up so that when you press the left mouse button it will
display a muzzle flash.

I'm trying to use an image like the particle pictures to show a muzzle flash effect. How would I display the picture near the muzzle of the gun?
Also, how should I set it up in the Receiver?

Here is what I have now (for the receiver).

Code: Select all

if( event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN )
{
Shoot();
}

Electron · Post by **Electron** » Thu Jun 17, 2004 10:57 pm

Presuming your shoot function displays the muzzle flash, that should work. As for positioning the muzzle flash, get the position of the node for your gun, and apply an offset for the barrel length. You will also need to account for rotation, of course. Are you using particles for you muzzle flash? If so make the emmitter a child of the gun node and your rotation should be taken care of (if do that don't even have to get position of gun node)

Xenocide · Post by **Xenocide** » Thu Jun 17, 2004 11:09 pm

Thanks! One more question though. How could I make the particle/image a child of the gun? I've never used child/parent relationships before.

Electron · Post by **Electron** » Fri Jun 18, 2004 4:08 pm

ISceneNode::addChild(ISceneNode *) If you're image is not a scene node could be harder. If you use a billboard you could always make an empty scene node, attach it to the gun, and always create the billboard at the position of the empty node. A muzzle flashshouldn't need to move, so its only initial position thta matters

BTW all this is assuming your gun is a seperate node. If your using md2 with a gun built into the model things could be very difficult

l0calh05t · Post by **l0calh05t** » Sat Jun 19, 2004 1:14 pm

Hmm, in Half-Life the muzzle flash is attached to one of the bones of the gun AFAIK, does irrlicht provide access to the skeleton of a model just as ogre does for example?

In that case it should be fairly easy to implement (perhaps you could even add a particle scene node which moves with the gun and creates the muzzle flash)

Electron · Post by **Electron** » Sun Jun 20, 2004 1:17 pm

Yes, that is what I was just suggesting, though perhaps I wasn't perfectly clear. If using .ms3d or .x you can get the matrix of a joint. With .ms3d you can even create a scene node that follows all transformations of an .ms3d joint

VeneX · Post by **VeneX** » Sun Jun 20, 2004 1:22 pm

Particle works fine:

Electron · Post by **Electron** » Sun Jun 20, 2004 1:26 pm

Those are sweet shots