ClearColor no reliable

Help & Support
1

Hi
I did set the render properties to “transparent canvas” and defined a clearColor in the Camerasettings. In Chrome it shows the correct color. Firefox sometimes (only sometimes!) shows a black background instead the clearColor.

Does anybody know how to solve this problem?
ChatGPT doesn’t get it :wink:

Kind regards
Alain

2

clearAlpha

3

How?
Can’t find any clearAlpha property.

4

For clearing alpha, go to your Camera → Clear Color and drag down to 0 the Alpha value.

Screenshot 2025-10-21 at 11.24.37 AM
Screenshot 2025-10-21 at 11.24.37 AM1350×548 47.6 KB

5

This makes the background white (instead of the correct color) in Chrome and still black in Firefox.

Edit: For a short moment, after the loadingscreen, the correct background-color appears. But then in Firefox it gets overwriten by black.

6

I think if you clear alpha to 0, than the clear color does not show, as it’s fully transparent … and the color of you web page underneath the webgl shows - so you might need to set that up.

7

@mvaligursky You are right. But it shows the underneath color only in Chrome. Firefox still shows black and Opera shows white. Its very inconsistent. When I set the alpha to 0 then I don’t need the clearColor and can use the underneath color instead.
Sometime it works correct even on Firefox, depending on the GSplat-Model I load into the scene.
I think its something with the framebuffer … :thinking: