Texture Opacity Covers up Sprite and Particle

[Ketan_ATA]

Hello

I am facing issue where the texture with opacity cover up other element in front of it sometimes…

I placed them above ground but it is still happening…

I tried experimenting with texture Opacity but no Luck!

Project Link:
https://playcanvas.com/project/1079070/overview/texture-alpha-test-issue

I would be really great if some one could help me on this…

[Leonidas]

Hi @Ketan_ATA,

That’s a common problem with transparent objects, it’s not PlayCanvas specific but how 3D rendering in general works.

Objects dissappearing

It is alpha sorting problem you have here. Alpha blended entities will be sorted based on Z distance of their AABB to camera. It is not reliable way to sort, as it does not takes complexity of geometry in account. But alpha sorting is generally tough question out there. So one way is to give developer a control over it, and there is few ways. For example with blue circles you simply want to disable depth test all together. So they always drawn on top of everything else. With different parts,…

There are various workarounds, you can doing a forum search on opacity / transparent sorting for some ideas on that.

[Ketan_ATA]

Thanks for quick reply @Leonidas

Adding Custom AABB more likely solve the problem…

I will experiment more and will see if it works proper or not…