VideoTexture, 1 frame per render loop

[igitz]

Hello, is there a way to advance a VideoTexture by just 1 frame per RenderLoop?

As I understand it now it is time based. This creates the problem that if the frames need to be captured to create an animated sequence, the video keeps advancing in between 2 captured frames.

[GameMonetize]

video is read using the video tag which will advance on its own timer which is clearly not the same as the rendering (24fps vs 60fps). You can always use videoTexture.video, and then move the current position manualy

[igitz]

thanks Deltakosh, i actually did try this, but i had a 'disappearing video' issue. Which is:

in order to set the .currentTime manually at each render loop, i would like for the html video to be paused.

setting videoTexture.video.autoplay = false or videoTexture.video.pause() when creating the videoTexture do not work, the video starts playing anyway. so i tried video.pause() in the render loop, which makes the texture disappear as soon as the .currentTime is called.

[GameMonetize]

There is a trick to stop autoplay with: texture._autoLaunch = false

Also you can force the texture to update when you touch the video element with texture.update()

[igitz]

//before render loop
var texVideo = new BABYLON.VideoTexture("video", ["./data/textures/video.mp4"],scene);
var htmlVideo = texVideo.video;
texVideo._autoLaunch = false;

hi @Deltakosh, the problem with this, is that the texture appears black.

so even when setting currentTime later, nothing appears.

//set current time
htmlVideo.currentTime = 50;
texVideo.update();

Unless i'm doing something wrong (?)

[GameMonetize]

Would you mind reproducing what you currently have in the pG?

[Pryme8]

keep in mind, I do not think you can autoplay on mobile.  I might be mistaken but I remember this being an issue at one point on a project.

Don't know if that is relevant for you or not.

[igitz]

@Deltakosh yes i can definitely try to reproduce it. i'm using a shaderMaterial and have external shader files, can i actually do that in the pG?

@Pryme8 thanks for the info, it is not relevant in this case.

[GameMonetize]

For external files, they have to be accessible regarding CORS but beside that, yes you can!

[edzis]

@Deltakosh It is worth noting that this trick with _autoLaunch will not work when used from TypeScript - this property is private.

This is part of why I created my own VideoTexture that does not take control of playback and just depends on events. Another part is that I needed to prevent `updateVideoTexture` calls for textures that are not visible. It asks for more wiring to detect visible textures through visible meshes and therefore is not currently in shape to replace current VideoTexture, but would you be interested in discussing ways to integrate this into the engine?

[GameMonetize]

The autoLaunch property can be exposed easily if this is a missing feature you need

And for sure, I'm always interested to discuss improvements