Recent Chrome and Edge updates crash with hotspot alpha channels

Hello, I also have this problem, it seems that it is OK in Windows Professional edition, and this problem will occur in home edition. Have you solved it yet

Currently, our Alpha Channel videos are experiencing the same phenomenon. After the Chrome update, we confirmed that it comes out in 128. version or higher fortunately, but Edge only plays the sound after the same error in the latest version

Yes, I got an error when I updated Google to 128

<hotspot name="docent"

            url="%VIEWER%/plugins/videoplayer.js"

            videourl="./video/docent_scene_02.mp4"

            onvideoready="set(hotspot[docent].alphachannel, 'TB')"

            pausedonstart="false"

            loop="false" zorder="5000"

            distorted="true"

            autopause="true"

            autoresume="true"

            onvideocomplete=""

            ath="49.113" atv="8.8597" width="1920" height="1080" rx="4.5" ry="-15" scale="0.453" edge="center"

            enabled="false"

        />

Thank you, Klaus. That's how it worked out.

Quote from klaus.krpano

Hi,

there are two bugs:

1. one bug in krpano - when using the alphachannel=TB/SBS setting with videos, krpano wrong sends an invalid value to WebGL until the video is loaded and ready...

2. and one bug in Chrome - even when the value is invalid, WebGL should silently ignore that invalid value and continue working. That means here the new Chrome release is buggy.

There is already a Chrome Bugreport about this: https://issues.chromium.org/issues/361823993
and it seems that bug was already fixed and there should be soon a new and fixed Chrome release.

The next krpano releases will have this also fixed.

As manual workaround it would be possible to replace this:
alphachannel="TB"
with:
onvideoready.addevent="alphachannel='TB';sourceheight/=2;"

This delays the alphachannel setting until the video is ready and so bypasses this bug.

Best regards,
Klaus

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