Before upgrading to Windows 10 I had the problem with Rayman 3 that most textures were missing. After some searching I found that setting TnL to 0 in the ubi.ini file would fix the problem and it did. But now after I upgraded to Windows 10 I am still experiencing missing textures, not as many but it's noticeable. Is there an fix to this? I have tried a lot of different setting, compatibility mode, running as administrator and even trying the original CD release but with no luck. I have an Intel graphics card.

First make sure you change TnL back to 1 in ubi.ini.

Install a program named "3D Analyze". Open it and then click "Select" and navigate to the Rayman 3 executable (Rayman3.exe) and click "open". Look for the checkbox in 3D Analyze named "force SW tnl" and check it. Now click "Run" to run the game and hopefully it will work.

EDIT: If this doesn't work (it used to with me and no longer does) I have another fix that is both easier and more likely to work incoming.

i have exactly the same problem, even running rayman on my nvidia, does anyone know how to fix this?

My Setup:
Intel i5 2.7GHz
Nvidia Geforce 840M with lastest driver
8GB RAM
Running on Windows 8 x64

EDIT: and forcing SW tnl using 3D Analyze doesn't help :/

RibShark found a solution to this on Rayman PC:
http://raymanpc.com/forum/viewtopic.php?f=13&t=21577#p1109422

Thx, it works perfectly now!! :D You are my savior :')