Trying to write BlendMode PropertyDrawer - Blend [BlendMode.y] [BlendMode.z]

Hi folks,

I'm in the process of writing some custom particle shaders and I wanted to make a propertydrawer to control the BlendMode.

Using two different Variables for the two blend factors isn't really Artist friendly so I thought I could combine it into one variable and set the rest in my property drawer.

I wanted to avoid writing a whole custom editor so I thought I'd wrap it in a Vector3 and use a PropertyDrawer instead.
I ran into the problem that [BlendMode.y] always seems to return 0.

Code (CSharp):

1. [BlendModePropertyDrawer]
2. _BlendMode("superblend",Vector ) = (1,1,1)
3.  
4. [...]
5.  
6. Pass
7. {
8.    Blend [_BlendMode.y] [_BlendMode.z]
9. [...]
10. }

This happens even if I set the vector directly without my PropertyDrawer.
Does anyone have an idea how to access the components of a Vector for such a case? Could not find any examples or documentation on that specific case.

Cheers
Simon

 

I know setting the blend ops with two floats works... I've done that combined with a custom material inspector to do something similar to what you're after.

You might try initializing the whole vector 4 with some values you know produce something predictable.

 

yea, it works with two floats for sure.
I think the issue is that using this [***.x] syntax the values are not read properly. I tried setting the values in the Vector using the normal inspector but that didn't work either.
I did find other reasons to write a full custom inspector though, so I'm circumventing the problem now.