Points with horizontally / vertically scaling or Stretch Billboard

[Samuel_Wong]

Hi all, I would like to know if THREE.Points supports Stretch Billboard like Unity?

I am rendering Rain and Explosion VFX for my project. I want my particles scale horizontally / vertically / with specific angle, instead of scale up entirely.
However, all my particle are Square / Circle. Do THREE.Points supports different shape of particles or Stretch Billboard render mode?

Thanks.

I would like to perform the following vfx.
Ref: particle render stretch billboard - YouTube

[prisoner849]

Hi!

@Samuel_Wong

I want my particles scale horizontally / vertically / with specific angle, instead of scale up entirely.

Rotate particle’s texture at the angle you need. It involves the modifying of PointsMaterial.
Something similar to this approach: How can I rotate a Sprite to face particular x,y coordinates? - #4 by prisoner849

[Samuel_Wong]

Thanks! I have already develop the rotation with customized shader exactly your another answer: Set rotation for individual points in a PointsMaterial.

However, I would like to develop the scale feature. Is it possible to complete it by UV solution too?

[Samuel_Wong]

It seems that my question is similar to this. I was also wondering if points can be non-square.
The answer, according to the following question, is NO. The work around should be scale the point to a big-enough square, and then use UV and discard in the shader, to achieve the horizontal scaling.

Please correct me if I am wrong.

Points with custom point geometry instead of square/circle

Yes. Standard technology in videogames. Somebody also using InstancedMesh with custom attributes. In custom shader we can also use array of textures if no all of textures can be placed in one texture atlas. [image] [image] [image] [image]