Setting Emission colour via Material property block not updating at run time

Unity Engine
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1

Hey.

I’m using the default Simple Lit URP shader in Unity 2020.2.2f1

I’m setting the “_EmissionColor” via a material block (to flash the character red when it takes damage) and can see the change update in the inspector but the character in the game view doesn’t change.

6827282--793520--BeforeSeting.jpg
6827282--793520--BeforeSeting.jpg1721×584 155 KB

6827282--793517--AfterSeting.jpg
6827282--793517--AfterSeting.jpg1711×568 147 KB

I can see the colour is set in the Frame debugger but i think I’m missing something that perhaps works differently in the URP?

Update: A quick test doing this via each material and not using the property blocks also caused the characters not to update with the new Emission colour

Cheers,
Pete

2

try to switch between sharedMaterial and material in you script

3

the use of share material vs material isn’t an issue here from having a poke around.

I narrowed it down to, if the start value is 0 on the _EmissiveColor then it will not update whereas setting the _EmissiveColor to just 1 in value, will make t update correctly. Not sure why but hopefully that helps anyone else hitting the same issue.

Also, remember that it’s HDR so you need to set the _EmissiveColor as a Vector4

5 Likes
4

Not the point of the thread, but you’re a lifesaver with this tip.

1 Like