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Won't Fix

Fixed in 2018.4.X

Votes

1

Found in

2017.3.1p1

Issue ID

1024363

Regression

No

[Particles] non R/W mesh from asset bundle is not rendered in particle system but not detected as unusable

Visual Effects - Legacy

-

To reproduce:

1. Open the project, attached by the user (psr_bug.zip)
2. Open the "main" scene
3. Use the bundleMesh asset as the mesh in the Particle System on the psr_bundleMesh object
4. Observe that particles are not rendered
5. Use the editorMesh asset instead of the bundleMesh
6. Observe that particles are now rendered

Expected: mesh, loaded from a bundle, is properly used in Particle System

Reproduced in 2017.1.3p3, 2017.2.2p3, 2017.3.1p1, 2017.3.2f1, 2018.1.0a3
Did not reproduce 2018.1.0a4, 2018.1.0f1, 2018.2.0a8

Fixed in 2018.1.0a4

  1. Resolution Note:

    This bug isn't likely to get fixed, as it's simply not high enough priority.
    The workaround is simple - mark the relevant meshes as Read/Write.

    Unity would like to be able to auto-detect this for you, but it is not trivial in this case.
    Sorry for the inconvenience.

  2. Resolution Note (fix version 2018.4):

    This bug isn't likely to get fixed, as it's simply not high enough priority.
    The workaround is simple - mark the relevant meshes as Read/Write.

    Unity would like to be able to auto-detect this for you, but it is not trivial in this case.
    Sorry for the inconvenience.

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Comments (1)

  1. Fndz

    Sep 09, 2019 07:43

    Just happened on my own project.
    Particle system show with no issues on Android / iOS / Editor if they are build in.
    Using asset bundle we get this error;

    No mesh data available for mesh wave_01 on particle system start_aura. Make sure Read/Write Enabled is set in the importer to work on the particle system renderer

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