GPU Shader Compatability

[Haggismaximus]

Hello,

I recently downloaded and installed the trial version of Mental Mill but I am running into compatibility issues. Several of the shaders do not work properly (noise, cellular) and just display red wire frame. I realize my card is not listed as compatible (ATI 5870) and have read a few post about other users having similar problem.

My question is is this on the to-do list? Some of the posts were rather old, but this still appears to be a recurring issue. I like what I saw in the short time I spent with the software, but can't consider a purchase if I'm going to have issue with shaders not working. I realize it may work outside of Mental Mill, but without real-time feedback it won't be worth it.

[David Marks]

I apologize for the delay in responding.. There are some variations across GPUs regarding the implementation of Cg profiles. We have seen a few shaders fail, even on tested/supported graphics cards. There may be some compilation errors listed in the Log Window to provide a little more detail about the failure.

I'll update our bug reports and ask our compiler guys to look into this. Hopefully, it will be as simple as altering the MetaSL code, but I suspect that we would need to make internal compiler changes to avoid problematic extensions.