bullet impact on wall

gromito · Post by **gromito** » Thu Mar 03, 2005 4:45 pm

I have make a little fps and i want to have bullet impact on the wall when i shoot?

someone can explain me how to do this?

thanks

bal · Post by **bal** » Thu Mar 03, 2005 5:18 pm

Do it like in the techdemo?

djceejay · Post by **djceejay** » Thu Mar 03, 2005 5:21 pm

Have a look at the collision tutorial - No.7. It casts a ray onto the level and sets a billboard to the impact position. Then you would have to add a decal at that position and rotate it to the slope of the wall/whatever.
You could write a scene node that displays a quad and its constructor takes the triangle (the wall hit) as a parameter. Then add this to the scene graph. In it's update function you could have a counter, when it gets to 0 it deletes itself to free up resources.

djceejay · Post by **djceejay** » Thu Mar 03, 2005 5:24 pm

bal - in the techdemo it only creates a particle system at the point of impact. I think gromito wanted to add a decal, like a bullet hole, on the surface.

gromito · Post by **gromito** » Thu Mar 03, 2005 5:45 pm

yes djceejay i want to make bullet hole. i go to the collision tutorial to understand how to make it.

thanks to you and excuse me for my english.

bal · Post by **bal** » Thu Mar 03, 2005 7:08 pm

Aha, then you should look at a feature that is implemented in IrrlichtNX++. Copy it over to your Irrlicht 0.7/0.8 installation or check how it is done or try using NX++. What I'm talking about is a CDecalSceneNode class which does exactly what you want, creating bullet holes (texture) on the place where your collision ray hits the mesh.