I found two problems with the current FirePro/FireGL drivers
First, uniform initializers don’t seem to work. I tried something like this:
uniform float u_scale=7.0;
But it didn’t work as expected. The shader compiles and links, but produced wrong outputs. I needed to set the value manually via glUniformf to get the shader work.
The second problem concerns only FirePro V5700 and V8750 class cards, not V5600 cards, though.
I’m using texture2DLod() and texture2DGradARB() in a shader (GLSL 1.20 with extensions). On V5700 and V8750 I get artifacts at the edges of each triangle; the V5600 ouput looks good.
I did not yet investigate, if texture2DLod() or texture2DGradARB or both go wrong, though.
Can anyone confirm this or has similar problems?