Change shader model to SM4 crash

Development Platform & Builds
, , , , ,
1

In the 4.8.0 release after change the shader model from the settings in the engine in the top of the viewport to SM4 then stop and crash with a report of null shader, using the 4.8.0 build from launcher.

2

Hi -

I have not been able to reproduce this crash. Can you include your Machine ID from the submitted Crash Report here? Also are you doing this in a specific project, and can it be reproduce in a blank project without starter content or first person template?

Thank You

Eric Ketchum

3

MachineId:9FAB51024F9246128A60D7B38BE92E35
EpicAccountId:5fec2ede509045da98157a67ef1ecead

4

Hi Hevedy -

Thank you for the additional information. It looks like you have a Light Propagation Volume in use in your level. LPV is not compatible with Shader Model 4 and does require Shader Model 5. That being said, I have entered a report of the crash, to see if we can get a warning placed in the engine about switching Shader Models with LPVs active, for reference UE-17333.

Eric Ketchum

5

Thanks you, yeah probably i got that enabled in the engine folder but is for other project, i don’t need that in this, is possible to disable for this the lpv and for the other have enabled ? or i need to disable for all ?
Will be nice to have a setting to enable or disable that for the projects like other things.

6

Hey -

No it has not officially been enabled and does have to be set for the engine entirely.

Thank You

Eric Ketchum