Trouble with multiple Render Targets and Cameras

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Sean Dunn

Snap Lens Network Member Lens Studio Team

• April 05, 2020 23:44

I started having issues with a project where I have a complex render target chain that is not behaving as expected.

* Camera A uses a Post Effect Graph material to copy the device camera to a render target "Camera A Target"

* Camera B has a Post Effect Graph material on it and renders to "Camera B Target"

* Camera C has a Post Effect Graph material that only uses "Camera A Target" and renders to "Render Target"

* Render Target is the final target in the Scene Config.

The problem is that Camera B should not affect the final output at all, since Camera C (which is the only camera with an output to Render Target) should be taking it's only input directly from Camera A Target.

It's almost like everything is just sharing a single target, even though I explicitly deal in separate targets.

This repros on the preview window as well as iPhone XR.

Any idea what's going on?

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  uaepro

  Snap Lens Network Member Lens Studio Team

  • April 06, 2020 13:23

  it's hard to understand without example project but try to set different layer on each camera

  

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  Sean Dunn

  Snap Lens Network Member Lens Studio Team

  • April 06, 2020 14:21

  That didn't work either. Here's a minimum test project that shows the issue. Note that Camera A should be creating a Render Texture that Camera C should be using, and whatever Camera B does shouldn't matter.

  https://drive.google.com/file/d/1ezLw_0apZkZxxoCjuoR2nrt-YR00_zXZ/view?usp=sharing

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  uaepro

  Snap Lens Network Member Lens Studio Team

  • April 06, 2020 14:44

  I have Changed the Layers and it seems everything works fine
  

  is that what you want ?

  download the project files here

  https://drive.google.com/file/d/17FU0gQIL75dmAG7_SFvH41uJEqWNAHbc/view?usp=sharing

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