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Navstar
11-01-2007, 10:05 PM
I recall reading on the online help that NET rendering a C4D project on a mixed network of Macs and PC isn't recommended, but didn't give any more information.

Are there any issues rendering a project both Mac and PC NET clients? I have access to some new PCs, but my current NET setup is all Mac and it works flawlessly.

dann_stubbs
11-01-2007, 10:36 PM
I recall reading on the online help that NET rendering a C4D project on a mixed network of Macs and PC isn't recommended, but didn't give any more information.

Are there any issues rendering a project both Mac and PC NET clients? I have access to some new PCs, but my current NET setup is all Mac and it works flawlessly.

this is/was a topic answered many times on this forum - but the general reason is in the old days computers all had different processors and some used big endian and some used little endian and some had weird math rounding errors or issues.

so mixed networks could have different math essentially in calculating math of which is quite important in 3d - especially procedural shaders or things like particles etc.

so different processors give a higher probability of different rendered results. in the past few years even with AMD and intel this seems to be greatly reduced and now that osx is running intel there is even less of a probably issue.

but... testing is still important before you send off that last final render just before that deadline and then in the final compile you find out there are differences.

note: with Thinking Particles there are posted issues with running different versions of processors - even as little difference as dual processors vs 1 single (same type) processor - something to do with the math i guess. it seems mostly related to using random generators.

dann

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11-01-2007, 10:36 PM
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