Help creating Multi-View Flipbook Effect, Houdini to Niagara

[Drewgoheen]

@julscgi

3. Current Challenge / Learning Ceiling

Now that I have the flipbooks assigned per particle correctly, I’ve hit what feels like a knowledge ceiling in Niagara.
There’s barely any documentation or discussion about multi-view flipbooks, angle-based texture blending, or multi-angle billboard transitions.

For this, look into creating your own module using a DOT Production from the normal of the particle facing to the camera angle. Based on the angle, you can fade/blend your multiple planes. You couuld acheive this in the material as well, not just in teh niagara system. This is just my thoughts on how I would approach this problem.

Heres a post of an example I wrote up.

Flipbook blending side and top view

I got curious on my own and did some quick tests. At the heart of this method, this is just a dot product thats controling a lerp fade, based on the facing direction of the sprite and the cameras forward vector. Here are the two setups I have. One with a Normalized Dot Product and one with a clamped remaping. Each has different fucntions. [image] In this image, we are looking at the values from the Niagara Module, and you can see that when the camera vector is aligned with the sprite face, w…