Video Texture wrapU not working

Questions
1

Hey,

I want to display a videotexture on a sphere with a variable arc value. I am facing black or white seams at the edges of the sphere. Clamping the texture in the inspector removes the seams.

Seam without clampU or clampV:

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image780×756 49.6 KB

No more seam with clampU and clampV enabled.

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image838×859 56.4 KB

I enable clampU by setting wrapU to BABYLON.Constants.TEXTURE_WRAP_ADDRESSMODE but this is not working on a videotexture for me. Sadly I cant reproduce the seam on a playground but I have the playground where clampU is not enabled when I set wrapU. Here is the link: https://playground.babylonjs.com/#SQ5UC1#469

Am I setting the wrong variable to enable clampU?

Thanks for helping

2

cc @sebavan

3

For clamping, you should use the TEXTURE_CLAMP_ADDRESSMODE constant: WRAP_ADDRESSMODE is for wrapping.

4

I updated the PG but it looks like ClampU is still disabled on the videotexture…

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image1893×848 95.6 KB

5

You must set the value after the video is loaded:

2 Likes
6

Yes, thats working!
What is the reason for that? When I set warpU on normal textures I dont have to wait for the texture to be loaded.

7

That’s because the wrapU and wrapV properties are set to the “wrap” mode by default by the class after the video is loaded.

8

Okay, and why exactly does this happen? And is this documented somewhere?

9

That’s how the class is currently implemented, I can’t tell more :slight_smile:

This PR will add some explanations about this:

2 Likes
10

Alright thank you very much

11

Seems like a bug compared to Texture ? @Evgeni_Popov did you look into the root cause ? I can if you want ?

12

I don’t know why we set the wrap mode to “wrap” (maybe there was a bug at some time, either on our side or in the (a) browser, that required we set this mode?), but in any case it would be a breaking change if we changed that…

1 Like