Just tweak the materialVideo.

In the shader (unlit transparent) select a totally transparent texture (I made a little texture...png with 16 x 16 pixels);

So Before first frame loads there is no white or black flash.

Easy solution is to play and pause the video on the Start method, then play it again on marker detected.

Hey guys! I found myself stocked in the same problem! now everything works fine with tracking and the transparent video+audio, but the first frame is White!

I am using a h264 codec with a luma mask side, cause it is quite impossible to use other codecs, have transparency and avoid big data. But what kind of other codecs do you suggest for?

And I tried to paste the snippets in my shader but it is not working, I can't start my PlayMode. I think I don't get the right spot, would be cool to get some help from some masters in the field!

Cheers

G51R 

Hey guys! I found myself stocked in the same problem! now everything works fine with tracking and the transparent video+audio, but the first frame is White!

I am using a h264 codec with a luma mask side, cause it is quite impossible to use other codecs, have transparency and avoid big data. But what kind of other codecs do you suggest for?

And I tried to paste the snippets in my shader but it is not working, I can't start my PlayMode. I think I don't get the right spot, would be cool to get some help from some masters in the field!

Cheers

G51R 

Try something like this if you arn't already.   Using this or trying a different codec (if possible and depending on platform) usually works for me.  Maybe also try hiding things until the prepareCompleted.

videoPlayer.prepareCompleted += PrepareCompleted;

void PrepareCompleted(VideoPlayer vp) { vp.Play(); }