OptiX is coming in Blender Cycles.
I have HD7870 2GB.
This is a request to make drivers which will support OptiX for Blender Cycles because after Blender 2.76, Blender developers dropped support for 7870 due to driver incompatibilities.
I saw that with OptiX and CUDA/RTX, loading the kernal in Cycles is faster than with AMD.
OptiX now supports viewport denoise in Cycles.
Is it possible for AMD driver to work with OptiX so that AMD card could use OptiX for rendering in Cycles?
not really, gpu rendering needs to compile a kernel no mater the API you are using, weather you are compiling it once or every time you het render thats a different task, however Cuda and OptiX rendering dont require compiling because the render kernel is precompiled within the driver its self.
I`m not a developer but as far as i know open CL is a software technology that being open source can be used on any compute hardware, meaning Intel, Nvidia and AMD can all use the tech and any of their hardware CPU and GPU cand compute OpenCL calculations, meaning that its hard to make a precompiled kernel that contains every type of architecture and hardware feature. CUDA an OptiX is created just for Nvidia hardware and its easyer to create drivers for nvidia hardware since they allready have the info on what they use.
Since CUDA and OptiX are closed source software (because Nvidia said that some of the tech is licenced from others and they havent created everything) no universal driver or source code will be provided to the linux community making it hard to port it to other devices or hardware.
AMD are just cheap GPU's as they are. The dev's are too lazy to work to implement a better Blender Cycles support and too busy to work on Prorender that in reality only mac users need for the moment. They aren't even able to deliver a correct version the Adrenaline 2020 software, it's not able to display framerate with the overlay interface. Once our projects done will migrate all our PC to Nvidia. Enough with those cheap GPUs and those lazy devs that should be fired. Nvdia is not perfect but at least they work hard for the users.