A Ray-Tracing Pioneer Explains How He Stumbled into Global Illumination

Re:A Ray-Tracing Pioneer Explains How He Stumbled into Globa... by semi-extrinsic on Friday August 03, 2018 @02:53AM (#17677751)

Hmm, IIRC Inventor does realtime raytracing, with first image after ~10 seconds and production quality images after a couple of minutes (this was on a XPS 15 laptop with the GTX 960M GPU).

My guess is that it's one of the features Autodesk doesn't want to put in Fusion360 so they retain a market for the more expensive Inventor.

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Re:A Ray-Tracing Pioneer Explains How He Stumbled into Globa... by GuB-42 on Friday August 03, 2018 @07:41AM (#17678993)

I don't think we can call it real-time below 6 FPS (0.17s). That's the framerate of cheap anime. And the goal should be at least 30, which is a typical video game framerate.

The only examples I have where real-time raytracing is used are demoscene productions where shapes are defined using simple mathematical primitives. (see the 4k intros "absolute territory" and "zetsubo", both from prismbeings for example).

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Re:A Ray-Tracing Pioneer Explains How He Stumbled into Globa... by StavrosK on Friday August 03, 2018 @05:09AM (#17678318)

Ten seconds is hardly real-time, that's how long Fusion takes too. You can't easily adjust the camera view when you have to wait ten seconds between adjustments.

That said, I think Fusion shows you a really low resolution image in real time, if I remember correctly.

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