Dynamic Paint+Particles (Machine gun vs concrete wall)

I was just trying something out with dynamic paint and particles. I’m thinking of experimenting more with it, and also trying to do larger explosions with smoke. Just a simple test. Please be warned, the sound is loud.

great job, it looks very cool.

Excellent effect.

That’s awesome, Frobenius! I’d love to learn how to do that effect for my floating gun video. How are you creating such realistic divots in the wall? Is it a normal map? It looks too deep to just be a bump map.

Thanks guys. I’m in the process of making a tutorial, but I’m having trouble editing it.

James, it’s really simple. Like, really simple. Wall is dynamic paint canvas with the front face subdivided many times(to create enough geometry for the wall to be deformed realistically). Settings for dynamic paint wall are

turn on anti-aliasing
change surface type from paint to displace
make displace factor number “2” in dp settings

a particle system that provides the “bullets” (sphere objects) is also enabled with dynamic paint with these settings

make particle system a brush
select particle system instead of mesh volume under dynamic paint source
solid radius to .02-.05 (depends on scene size)
smooth radius to 0

I animated the brush to move so as to spread the bullets across the wall. I added a debris group (made of deformed cubes) and added the group to each particle system. When the dynamic paint made an impact on the wall from the particle system brush, I noted the frame and made a particle debris system coincide with the impact to imitate the debris shooting off the wall. I duplicated each particle system and changed the direction, number, size and other parameters to my need.

The bullet particle system was not rendered because a lot of particles went through the wall. So I created new bullets out of spheres and animated them impacting the wall. I added an emission material to them too. In the compositor, I added a vector pass and added vector blur and dof. That’s it.

Thanks for the tips Frobenius! Glad you posted this, I’m looking forward to trying this out myself. Looks great.

Yes, thank you for your detailed reply, Frobenius! If you make a tutorial, I’ll gladly share it!

Hey James and Galileo90. thanks. I just uploaded it. It took so long because I kept rendering at 24 fps in blender but I recorded in 25 fps and I kept losing sync for audio. haha. any questions, let me know. It’s more of an explanation instead of a ground up tutorial, but everything is addressed. see the youtube description for info on the collision settings for the floor plane.

Wow… this is really neet… thanks for the effort and the share… might have questions as I go through your tutorial…

glad to help. I had to make a change to the tutorial, but I will place a link within this post sometime tonight to the new video. Something I did not mention in the video is that the emitter particle system for dynamic paint is made up of objects (spheres). I kind of assumed people know how to do that, if not let me know. And norvman if you have any questions, let me know.

video link is here now: