Rendering objects that use different shaders?

[raymoo]

I'm trying to render one object with one shader program, and another with a different program, and I'm running into the issue that all the programs used in a FrameCmd have to have the same uniform parameter thing.

I can only see a couple of ways to do what I want:

• For each program render its objects into a separate framebuffer and then render this onto the default framebuffer (introducing another shader to be able to handle depth etc.).
• Make the uniform parameter thing a sum type and use the same type for all of my programs

The first is cumbersome, but the second is workable (though messy). Is there a better way to do what I want? Maybe the answer lies somewhere in the typeclass instances of your types.