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pmndrs / drei

🥉 useful helpers for react-three-fiber
https://docs.pmnd.rs/drei
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MeshReflectorMaterial normalMap causes offset. And rotated meshes cause sharding on camera motion #1558

Open pdkn opened 1 year ago

pdkn commented 1 year ago

Problem description:

Expected Behaviour:

  1. When normalMaps are added the reflection should not become offset on the x axis.
  2. When Panning / rotating the scene with OrbitControls, the reflection should stay vertically aligned to the camera rather than become shard'ed ( irrespective of mesh rotation )

Actual Behaviour:

  1. When normalMaps are added the reflection has an offset on the x axis.
  2. When Panning / rotating the scene with OrbitControls, the reflection is not vertically aligned to the camera. the effect looks shard'ed. I wonder if the mesh rotation is not being taken into consideration?

Relevant code:

Please see this folk of the MeshReflectorMaterial image-gallery demo. It has OrbitControls and normalMap/roughnessMap added. https://codesandbox.io/s/image-gallery-forked-rxlh55

Suggested solution:

I'm going through the MeshReflectorMaterial props to see if I can counter act these glitches but no joy so far. Any Thoughts?

pdkn commented 1 year ago

The storybook demo also exhibits the same offsetting issue https://drei.pmnd.rs/?path=/story/shaders-meshreflectormaterial--reflector-st

Felixcodet commented 1 year ago

I've encountered the same problem. I'm on

github-actions[bot] commented 5 days ago

Thank you for contributing! We’re marking this issue as stale as a gentle reminder to revisit it and give it the attention it needs to move forward.

Any activity, like adding an update or comment, will automatically remove the stale label so it stays on our radar.

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