- Jan 21, 2006
- 3,702
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http://forums.cgsociety.org/showthread.php?f=6&t=828690
"Rendering on Core i7 creates noise artifacts, looks fine on Core 2 Duo"
"i'm doing a test render right this minute with HT turned off, its almost done so will post back but I think it is HT releated. I noticed that sometimes MR would give me 13 or even 14 buckets sometimes when it should only use 8 with HT. Now it uses 4, one for each core (no HT) and fingers crossed."
"Yup, it was Hyperthreading causing the artefacts within the render frame.
Thanks for helping."
where does this get fixed - in the CPU, the Motherboard, the OS, or the application ? the guy's using 3D Max & had to turn off hyperthreading to get a decent render.
he's using Mental Ray, which renders in 'buckets' (a square section of the screen about 40 pixels x 40 pixels). with HT on, the buckets get mixed up, resulting in some Salvador Dali-esque outputs.
they've discovered a new art form !
"Rendering on Core i7 creates noise artifacts, looks fine on Core 2 Duo"
"i'm doing a test render right this minute with HT turned off, its almost done so will post back but I think it is HT releated. I noticed that sometimes MR would give me 13 or even 14 buckets sometimes when it should only use 8 with HT. Now it uses 4, one for each core (no HT) and fingers crossed."
"Yup, it was Hyperthreading causing the artefacts within the render frame.
Thanks for helping."
where does this get fixed - in the CPU, the Motherboard, the OS, or the application ? the guy's using 3D Max & had to turn off hyperthreading to get a decent render.
he's using Mental Ray, which renders in 'buckets' (a square section of the screen about 40 pixels x 40 pixels). with HT on, the buckets get mixed up, resulting in some Salvador Dali-esque outputs.
they've discovered a new art form !