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Bug (Case 1254370) Calling CommandBuffer.SetGlobalConstantBuffer with null crashes the editor

Discussion in '2020.1 Beta' started by Hyp-X, Jun 9, 2020.

  1. Hyp-X

    Hyp-X

    Joined:
    Jun 24, 2015
    Posts:
    421
    This is the only code I needed for the CRASH repro:

    Code (CSharp):
    1. using UnityEngine;
    2. using UnityEngine.Rendering;
    3.  
    4. public class ConstantBufferTest : MonoBehaviour
    5. {
    6.     void Start()
    7.     {
    8.         CommandBuffer cmd = new CommandBuffer();
    9.  
    10.         cmd.SetGlobalConstantBuffer((ComputeBuffer) null, "FooBarConstantBuffer", 0, 0);
    11.     }
    12. }
    13.  
    Tested in 2020.1.0b11
    I haven't tested in any other version yet
     
    Hyp-X, Jun 9, 2020
    #1

  2. Hyp-X

    Hyp-X

    Joined:
    Jun 24, 2015
    Posts:
    421
    Also crashes in 2020.2.0a13
    Does not crash in 2019.4.0f1
     
    Hyp-X, Jun 9, 2020
    #2

  3. LeonhardP

    LeonhardP

    Unity Technologies

    Joined:
    Jul 4, 2016
    Posts:
    3,111
    LeonhardP, Jun 10, 2020
    #3
    Hyp-X likes this.

  4. Hyp-X

    Hyp-X

    Joined:
    Jun 24, 2015
    Posts:
    421
    Yay!

    This other bug I found (but didn't get to report) is fixed in beta 12:
    Graphics: FIxed DX11 backend crashing if constantbuffer values are being changed with incompatible shader bound. (1246991)

    The reason I found the null crash is that I was searching for a workaround for this 1246991 issue :)
     
    Hyp-X, Jun 11, 2020
    #4
    LeonhardP likes this.