topic Re: Geometry motion blur in Bifrost Forum

Geometry motion blur

Aslan.Jafari — Fri, 18 Dec 2020 22:14:08 GMT

A simple compound to simulate the effect of motion blur, by blending between the current and last point positions of the geometry.

It uses point normal and point velocity of the geometry to create a weight map.

weight_by_rotation_angle.json

This map is then used to blend between the current positions and last known position of the object via a lerp node.

Dependencies: force_pull_port and compute_point_velocity from rebelpack.

Re: Geometry motion blur

mjcg91 — Fri, 18 Dec 2020 22:16:43 GMT

awesome 🙂

Re: Geometry motion blur

sachin.shrestha — Sat, 19 Dec 2020 06:19:34 GMT

Nicely done Aslan! Will be super useful in animation as a lag deformer 👍

Re: Geometry motion blur

sklauss — Sat, 19 Dec 2020 10:06:34 GMT

very cool, will try on a char anim of mine.

Re: Geometry motion blur

george_stamenov — Wed, 10 Feb 2021 11:37:39 GMT

Hi Aslan,

Do you mind uploading a scene with the compound attached to a example mesh? I am fairly new to Bifrost and I can't get my head around it very well. I would love to try this compound, it looks amazing.

Re: Geometry motion blur

Aslan.Jafari — Wed, 17 Feb 2021 23:08:13 GMT

Here is a simple example that uses the compound.

Animated sphere moving around and deforms based on it's animation.

I am using the point_weight to blend between two colors in the Hypershade as well.

Note: I made the geometry_motion_blur compound local to this file. you may replace it with your referenced copy if you like.

Hope this helps.

Re: Geometry motion blur

george_stamenov — Wed, 17 Feb 2021 23:27:10 GMT

Absolute legend! Thank you so much. Will give it a go now!