Art Directing Explosions | Urban Bradesko | SIGGRAPH HIVE 2023

Check out the new Theory Accelerated website for a growing collection of FREE Houdini VFX courses! www.theoryaccelerated.studio
In this presentation, Urban showcases a few different ways of setting up emitters for explosions and develop a simple scatter shader for full control when rendering with Karma. These workflows will provide art-directable control over the pyrotechnics including explosion art direction, shaders, shapes, and principles.
00:00 Presentation
00:15 Intro to Axiom
00:48 Art Directing Explosions or Controlling Chaos
02:16 Artistic Principles of FX
03:13 Value
04:05 Color
05:16 Shapes
06:58 fibonacci sequence
07:26 12 Principles of Animation
09:42 Four (of the 12) Principles of Animation
14:13 Explosions Emitter
15:59 Grains Emitter
25:34 Scatter Shader
36:50 Heli Crash Example
42:07 Clouds
42:48 Axiom on the iPad
44:31 Theory Accelerated Studios Workshops
45:54 Q&A
Urban Bradesko is a multidisciplinary artist mostly known for his Explosions. He has worked on Destiny 2 cinematics, Gears of War 5, Love Death and Robots, Deathloop cinematics and many more. Currently, he works with Matt Puchala at Theory Accelerated where Axiom is being developed.

[@samk9632]

Appreciate the shoutout Urban! Great talk!

[@GlennDawick]

Hi Urban thanks for the amazing tips, this is such a great workflow! Very keen to give this grain emission explosion method a try. You mention around 19:00 mins you'd be able to pass this emitter setup along to us for a deeper dive inside your workflow. I'd love to get a stronger understanding of some of the sections you skipped over if possible?

[@pragmaticvfx]

This is very solid workflow for pyro sims! Urban FTW!

[@UrbanExplosionsGuy]

[@duncanbuckley7020]

Explosions guy blowing us away again.. nice presentation Urban

[@UrbanExplosionsGuy]

heck yeah!

[@duncanbuckley7020]

Looking forward to more Axiom stuff, thanks for all the hard work@@UrbanExplosionsGuy

[@chr1st0pher]

such a great talk, love seeing the application of animation principles etc to FX!

[@DanteMetaphor]

Very Cool Urban!

[@UrbanExplosionsGuy]

❤‍🔥

[@liamhalsey2938]

I wanted to see people reacting to the demon slayer clip!!! Seriously amazing presentation Urban, your work is such an inspiration.

[@UrbanExplosionsGuy]

i appriciate that a lot Liam! :)

[@jackcg10]

can i get hip file please?

[@Fabian_Nowak_VFX]

he literally gives you all the keys and the magic tricks, why don't you try out by yourself now ? It will be much more rewarding and useful for you that just using something done 100% by someone else. Just saying...

[@thedarkmatterplanet]

@@Fabian_Nowak_VFX Try telling that to the AI bros..

[@jackcg10]

@@Fabian_Nowak_VFXi have learned alot from this recently, especially for the sourcing part, really appreciate for the advice! 🙏🏼

[@Fabian_Nowak_VFX]

Hey Urban, just curious... Are you planing, at some point in a near or distant future, to make an explosion that actually looks decent ?

[@UrbanExplosionsGuy]

[@DoubleJumpAcademy]

😋xoxo