[Mesa-dev] Questions about arrays in GLSL 1.50 interface blocks

[Kenneth Graunke]

On 08/06/2013 12:11 PM, Paul Berry wrote:
[snip]
> FYI, Ken and I just did some experiments on AMD's Catalyst driver, and
> here's what we found:

For the record, this was with Catalyst 12.06 on a Radeon HD 3650.  (I 
haven't updated that machine in a while...)

[snip]
> Based on what we've seen with AMD and nVidia so far, it seems like the
> intended behaviour is probably: redeclarations of interface blocks are
> prohibited, with the exception of gl_PerVertex (which may only be
> redeclared once in a given compilation unit).
>
> I propose to implement the above rule in Mesa unless we hear otherwise
> from Khronos.

Sounds good to me.