Rendering Issues in Replay View on Android

[cjaverliat]

Fix: Rendering Issues in Replay View

This pull request resolves the rendering issues identified by @BergLucas.
The problems were due to two main causes:

1. Incorrect depth buffer configuration
2. Improperly loaded lightmaps

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🐛 Bug Fixes

Lightmap Loading

The replay appeared completely black due to lightmaps not being loaded correctly:

To help debug missing assets from the bundle (in this case the lightmaps), a log message was added:

Root cause:
The tutorial’s record1.plm and record2.plm used lightmaps generated by the Bakery plugin, which was later removed due to licensing restrictions.

Fix:
Recording new record using the current tutorial project (with Unity’s built-in lightmaps) results in correct reference to the new lightmaps and thus a correct loading in the viewer.

Depth Buffer

Even with valid lightmaps, depth rendering was incorrect — meshes were layered improperly:

Root cause:
The issue stemmed from a RenderTexture created using RenderTexture.GetTemporary in Player.cs#L73.
This method reuses textures from a pool and, without explicitly set depth parameters, the reused texture had an incorrect depth buffer.

Fix:
A dedicated render texture asset (PreviewTexture.renderTexture) was created and used consistently across the codebase. 2f2a0c8

Shader/Class Stripping

The build threw runtime errors due to stripped classes and shaders:

Fixes:

• Disabled PlayerSettings.stripEngineCode to prevent class stripping 7cedc0c

• Disabled shader stripping in URP settings 57e04bd0293741f7611cfeeea8417de21b086f10

NullReferenceException in the loading panel

Issue:
A NullReferenceException occurred in Player.cs when bundleLoader was still null.

Fix:
Added null-coalescing to default progress to 0 when bundleLoader is not available. f417e55

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🧹 Code Cleanup

• Removed excessive debug logging from RecordAssetBundle.cs f5b8a48

• Added warning logs for missing assets in the bundle 761008b

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✅ Final Result

Rendering now works as expected:

Screenshots from a Google Pixel 6A