My apologize, its the situation "havent seen tree log in the woods". I turned everything upside down to find it. Im using 3.0.1.1, GPU all the time. Found it the most stable somehow on my machine and current work. Yeah i use TX textures allways. After first starting on IPR, Arnold automatically generates TX copy in default TEX folder. After that i always go to material editor and replace original texture with TX one - maybe im wrong, but i have feeling its less on the hardware than and works faster. Even before final rendering, guess thats because they take less memory and are optimized for Arnold. I recommand that to anyone. Correct me if im wrong. I dont have trouble about multiple renders, im aware of it, most of the renders are like that, at least a few i tried, they dont mix IPR with final rendering, except You have hardware devided for each purpose. So is it possible to have active IPR with with final rendering in the background using some strong multicore CPU like threadripper? I have some question about that too, now im in the diff situation. Im planning to upgrade my PC specially for Arnold and mostly C4D. If i go to CPU option, i must buy some expensive PC based on threadripper, which is great, stable, using amount of memory depending on RAM machine have etc. Very good and trouble free. On the other hand, new graphics RTX 3090 for example, just kills it with speed, specialy in IPR refreshing, which is very very important to me, but sadly, GPU Arnold does not have stability and complete quailty of final result of CPU Arnold. The biggiest problem with GPU Arnold and bottleneck so to say, is memory ammount. I currently have 1070GTX 8Gb video ram, which become tiny pool for my work. As i understand, video RAM of graphic card used is memory which GPU Arnold gonna use for the scene. No matter how much RAM in the computer i have, be that 64Gb for example, im limited to that VRAM of graphics card for the scene. THats big problem with Arnold GPU. Means i can target only card like 3090RTX than having 24Gb VRAM, which is something modestly decent, barely still enough for some serious work with 8K and above textures and much polys with complex scenes and lightning. WHat is Your recomandation? THx for answer in advance!
