KlakSpout fails to update Unity texture on sender start/stop/restart - Unity 2021.2.0b4

[MrMahgu]

When restarting a spout sender (In my case, non KlakSpout sender) unity fails to pickup that the sender has restarted sending and no texture updates will happen unless the Receiver in Unity is enabled/disabled/restarted.

KlakSpout V1 continued to received the new sender texture without issue.

Steps to reproduce:
Unity 2021.2.0b4 -> New Project
Add scoped registries
Install KlakSpout 2.0.2
Add Plane
Add Spout Receiver to Plane
Configure With Plane _MainTex
Play
Start sender
Wait..1..Wait..2
Stop sender
Wait..1..Wait..2
Start sender

texture is not updated with new sender texture

Windows 10, x64.

[keijiro]

Thanks for reporting the issue. Does it reproduce with SpoutSender.exe? https://github.com/leadedge/Spout2/tree/master/DEMO

[MrMahgu]

Yes. With SpoutSender.exe it still does not update texture if SpoutSender.exe is closed and re-opened and re-configured.

[keijiro]

Thanks for the information. I'll try reproducing it.

[keijiro]

Fixed in 2.0.3.

[keijiro]

I'm closing this issue now. Please feel free to reopen it if it still reproduces.

[MrMahgu]

In KlakSpout v1 - the last received frame was left active on the texture
In KlakSpout v2 - the last received frame is discarded and removed

Which is desired for future?

[keijiro]

In KlakSpout v2 - the last received frame is discarded and removed

The spout receiver and its texture are internally removed, but Receiver.receivedTexture (backed by Receiver._buffer) remains intact until reconnection.

So, from a user's perspective, the last received frame is left active on the texture.

If you find a behavior that removes the last received frame on disconnection, please submit a bug report. That's not my intention.