Chaos Corona for 3ds Max > [Max] Feature Requests

Faster material rollouts Qt..

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arqrenderz:
Hi, just now i saw a great article about vray going Qt for the materials, So we know corona materials are Slow, but how much is SLOW.. well i timed at 2.47 seconds for the corona physicals material.
NOT on a fresh new max, but on the same file the autodesk physical mat is redrawn almost in a blink.
So here is the video
Im on max 2023.3, corona 9.1
Win 10, amd 5950x 128gb ram 2060 latest drivers.

TomG:
Were you using the latest daily in this test, as there were some significant improvements to material speeds already https://trello.com/c/eC1viXsd/249-done-faster-material-editor-rendering - may make a difference.

Also QT rework is underway e.g. in https://trello.com/c/18GmfvOm/162-rewriting-unified-object-lister-add-the-rest-of-listers and if I remember right the reason the Curve editor is no longer a flyout in the VFB is due to the UI there being reworked into QT - but it's non-trivial to do (e.g. the Curve editor no longer being detachable), so things will happen piece by piece over time and that time is not necessarily Corona 10; but we are aware of the benefits of QT and are working on that :)

romullus:
Is that slowness the same in every scene for you? I have very similarly specced machine, same Max and Corona versions like yours, but i experiece much faster redraw speed for Corona materials, i would say about 3 times faster compared to your video. I tested it in empty scene, but as far as i can recall, it's about the same in relatively heavy scenes. I wonder why such difference?

Juraj:
Latest daily build is faster, but not as fast as Autodesk Physical, that one is just instant blink. Still a space for improvement somewhere.

maru:
Is everything fine with your rendering performance? (for example if you try Corona Benchmark - https://corona-renderer.com/benchmark)
I would also advise updating BIOS and your chipset driver.

And lastly (this is not a joke - see the attached video) - try changing your Windows power plan to High Performance (there are even apps where you can do it with a single click). You can see how it's super slow in power saver mode (you can literally see the UI redraw) and it's much faster in high performance. I am on a 3900X so it should be even faster for you with a 5950X.

In my recording I am using the 03.03 daily build. It has some material editor speedups so you may want to try it.

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