I am new to the texture projection painting tool Mari by the foundry and I really like it. It feels somewhat intuitive and is really responsive. One cool feature I wanted to try out was the displacement preview shader module.

But when I tried to add that module to my shader I didn´t find that in the list. After consulting the support at the Foundry I found out that this feautre is not supported on the following graphics cards:

NVIDIA Quadro FX 3800
NVIDIA Quadro FX 3800M
NVIDIA Quadro FX 4800
NVIDIA Quadro FX 5800

I asked if support is planned, but I havn´t heard back yet. I will post asa I get an answer from the Foundry.