Question _SpecularHighlights - 0 is true and 1 is false

So if I use this code:

Code (CSharp):

1.  
2. float specularHighlights = bakeResult.skin.sharedMaterial.GetFloat("_SpecularHighlights");
3. UnityEngine.Debug.Log($"_SpecularHighlights is {specularHighlights}");
4.  

And then the box for specular highlights...



and then run my script... I get this:



If I uncheck the box - the opposite happens... It says



So 0 is true and 1 is false. It seems like it should be the other way around. What's up with that?

Unity 2021.3.8 with URP 12.1.7 with URP/SimpleLit shader.

I am attempting to get these values in an editor script.

On a side-note, I just spent 4 hours researching (via experimentation, looking through shader source code, and internet research) how to detect if that box was checked via using IsKeywordEnabled(), and wasn't able to come up with a solution. Fortunately now that I know true is 0 and false is 1, I can use _SpecularHighlights.

Spoiler: Things that do not work

if (bakeResult.skin.sharedMaterial.IsKeywordEnabled("_SpecularHighlights")) {
UnityEngine.Debug.Log($"_SpecularHighlights is enabled");
} else {
UnityEngine.Debug.Log($"_SpecularHighlights is disabled");
}
if (bakeResult.skin.sharedMaterial.IsKeywordEnabled("_SPECULAR_COLOR")) {
UnityEngine.Debug.Log($"_SPECULAR_COLOR is enabled");
} else {
UnityEngine.Debug.Log($"_SPECULAR_COLOR is disabled");
}
if (bakeResult.skin.sharedMaterial.IsKeywordEnabled("SPECULAR_COLOR")) {
UnityEngine.Debug.Log($"SPECULAR_COLOR is enabled");
} else {
UnityEngine.Debug.Log($"SPECULAR_COLOR is disabled");
}
if (bakeResult.skin.sharedMaterial.IsKeywordEnabled("_SPECULARHIGHLIGHTS_OFF")) {
UnityEngine.Debug.Log($"_SPECULARHIGHLIGHTS_OFF is enabled");
} else {
UnityEngine.Debug.Log($"_SPECULARHIGHLIGHTS_OFF is disabled");
}
if (bakeResult.skin.sharedMaterial.IsKeywordEnabled("_SPECULARHIGHLIGHTS_ON")) {
UnityEngine.Debug.Log($"_SPECULARHIGHLIGHTS_ON is enabled");
} else {
UnityEngine.Debug.Log($"_SPECULARHIGHLIGHTS_ON is disabled");
}
if (bakeResult.skin.sharedMaterial.IsKeywordEnabled("_SPECULAR_HIGHLIGHTS")) {
UnityEngine.Debug.Log($"_SPECULAR_HIGHLIGHTS is enabled");
} else {
UnityEngine.Debug.Log($"_SPECULAR_HIGHLIGHTS is disabled");
}
if (bakeResult.skin.sharedMaterial.IsKeywordEnabled("_GLOSSINESS_FROM_BASE_ALPHA")) {
UnityEngine.Debug.Log($"_GLOSSINESS_FROM_BASE_ALPHA is enabled");
} else {
UnityEngine.Debug.Log($"_GLOSSINESS_FROM_BASE_ALPHA is disabled");
}