![]() I hate to make this look like finger pointing, but at the moment I need to rely on feedback from the GPU companies to figure some things out. This is OpenGL which is cross platform code and there are very few differences between the Mac codebase and Windows hen it comes to display. ![]() These same computers running Windows (and Windows drivers) do not exhibit the issue at all and work just fine drawing tons of curves on the screen using the tessellation shaders. We have submitted a sample for repeating this bug to AMD and am hoping to hear back on if there is something that can be done to improve this situation. ![]() This performance is so bad that we just disable tessellation shaders all together on these GPUs and switch to an alternative technique for wire drawing. One of the known bugs is with respect to AMD and Intel drivers going into what seems like an emulation mode when enabling tessellation shaders for wire drawing. Download the latest free 'evaluation' copy of Rhino 7. We do have a handful of workarounds for known driver bugs and there are several that we have to work around on Mac which has been personally pretty frustrating. Draftsight Linux, Mac, Windows DraftSight is a full-featured product, available on all platforms for free. We don’t “tune” Rhino’s display for any specific GPU. I am not using rhino 6 which is running on evaluation at all at least not really, due to this performance problems, rhino 5 is still installed and i am not motivated to buy rhino 6 in this condition… Rhino 6 was at some point faster in some regards still slower than 5, but with some recent updating it got actually even or i am not sure what to say more, i am happy that i am not the only one experiencing problems, but as long as you guys dont see anything nothing is going to be done, or whats the conclusion from all this? i am not claiming it has nothing to do with specs at all but there seems to be a certain tendency obvious… ![]() some may also not have time, maybe simply keep working in 5 or dont perceive the performance issues, why ever. Hmm i am not convinced that this is true, there are 3 different specs in this thread already, actually since i had the honor to try 2 different specs there are 4, and mac users are always rather rare in complaining, since there are naturally also fewer.
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