Resolved DOTS ShaderGraph MaterialProperty Bool

Hi,

I'm struggling to set a bool value in Shadergraph from C#. I have several others where I set float values and those all work fine.

As shadergraph treats all bools as floats and there is no bool type for MaterialPropertyFormat, I'm assuming I have to define the corresponding component as a float as below:

[MaterialProperty("_ShowProgress", MaterialPropertyFormat.Float)]

public struct ShowProgressBar : IComponentData

{

    public float Value;

}

The "_ShowProgress" property in the shadergraph is a bool type as that's what the Branch node type reads. Any suggestions much appreciated.

 

One common way to represent a boolean as a float is by storing 0 for false and 1 for true. Then in shader graph you can use a "Comparison" node to compare the float value to something like 0.5. This will give you a bool type in shader graph to then plug into a Branch node or anything else that takes a bool type.

 

That makes sense. That's working now, thanks! I'd read somewhere that floats are automatically interpreted as bools when needed, but that's only when not using shadergraph I think.