Sprite with alpha glitching against textured floor plane

[harbdog]

I'm experiencing an issue where viewing a sprite, which has a texture image containing alpha, at certain angles has its alpha channel showing when against a textured background/floor.

G3N Version: github.com/g3n/engine v0.1.1-0.20210127232258-6d0136f3444c and v0.1.1-0.20200214161420-db7282a2ba23 from G3N Demo project

Here's a gist with the G3ND tests/model.go code to reproduce the problem: Gist: https://gist.github.com/harbdog/6e32a467b45779126fe6a15cd007cd0a

[danaugrs]

Hi, and thanks for providing a GIF and reproduceable example! This happens because both the sprite and the plane have a transparent material, so their render order is computed by comparing the distance between their centers with the camera. You can manually modify the render order of the sprite to be drawn on top of the plane via s1.SetRenderOrder(1). Then it will always be rendered on top of the plane.

[harbdog]

Excellent thanks for the tip! Setting the floor plane render order to -1 also did the trick