Chaos Corona Forum

Chaos Scatter => [Scatter] I need help! => Topic started by: hayden_21xo on 2023-10-30, 15:17:00

Title: How to Attach Crumbs Realistically to a 3ds Max Displacement Map
Post by: hayden_21xo on 2023-10-30, 15:17:00

Hello, I'm working on a 3D scene in 3ds Max, and I've applied a displacement map to a cookie model to create a realistic surface. However, I'd like to attach small crumbs to the cookie's surface to make it look even more convincing. But the crumbs hardly sit on the cookie surface.

Any insights or advice on how to achieve this effect would be greatly appreciated. Thank you!

Title: Re: How to Attach Crumbs Realistically to a 3ds Max Displacement Map
Post by: aaouviz on 2023-10-30, 15:22:40

Chaos scatter?

Title: Re: How to Attach Crumbs Realistically to a 3ds Max Displacement Map
Post by: hayden_21xo on 2023-10-30, 15:29:56

Actually im open for any scattering method (object paint, chaos scatter, multi... etc) What i am trying to achieve is something just like the attached image.

Title: Re: How to Attach Crumbs Realistically to a 3ds Max Displacement Map
Post by: pokoy on 2023-10-30, 16:26:36

Hmm, you could copy the cookie mesh, subdivide it to a nice highres version, apply the displacement map to a displace modifier with the same settings (min/max etc., make sure it uses the same map channel as the corona displaced cookie), and scatter the crumbs on that mesh. Then, make that highres cookie non-renderable, this could work.

Title: Re: How to Attach Crumbs Realistically to a 3ds Max Displacement Map
Post by: hayden_21xo on 2023-10-30, 16:38:02

Thank you... Lemme try.

Title: Re: How to Attach Crumbs Realistically to a 3ds Max Displacement Map
Post by: pokoy on 2023-10-30, 17:47:11

Not sure if Corona Scatter respects render time displacement but it's worth trying first before the workaround I posted. If not, it's a good feature request, there's certainly a lot of use cases where Scatter would need to sit on top of a rendertime-displaced mesh.

Title: Re: How to Attach Crumbs Realistically to a 3ds Max Displacement Map
Post by: romullus on 2023-10-30, 19:09:49

Scattering on render-time displacement is not supported yet, but you can go to the most wanted feature topic and cast your vote for it to be implemented: https://forum.corona-renderer.com/index.php?topic=37064.0

Title: Re: How to Attach Crumbs Realistically to a 3ds Max Displacement Map
Post by: Tom on 2023-10-31, 05:14:01

Yes indeed, it would be very useful as it happens in so many situations, like scatter leaves on a displaced asphalt road etc ...