Hi all, I have an issue while computing displacement. ITS SOOOOOOO SLOW so i ve checked my system and while computing, it only uses 35% of the CPU power on average. WHY? i ve chcekd the afitities and priorities but max has full power in terms of those and so does vray using max2010 and vray SP…

have you tried raising the dynamic memory limit? default is 400 mb, which is too low in almost every case.

its not helping really…the CPU usage is still around 30 %…:frowning:

There are some parts of the displacement (e.g. the actual generation of the displaced geometry) that are not multi-threaded at present. Best regards, Vlado

yes but i am getting huge ups and downs on cpu usage during actual rendering…which is strange…it should be on full throttle most of the time no? the highest i got was 82%, the lowest 15%, but most of the time it was fluctuating around 45% when the maxes priority was at REAL TIME the memory was not …

Hi, I’m having the same problem (XP Pro, Twin Quadcores, 12G Ram, Max 2010, Vray 1.5 SP4). I have a product shot scene with a bottle without any displacement. Task Manager shows 3ds max using an average of around 35% and less than 2gig ram. CPU usage doesn’t go above 52% at any point. I’ve alte…

Just to reiterate…this is happening in my scene WITHOUT ANY DISPLACEMENT Thanks again John

yeah this behaviour is very weird…and it drives me nuts :slight_smile: may ve Vlado might have any input on this?

Does your memory usage go beyond your physically installed memory amount? If it’s hitting a certain amount beyond that the OS has to swap on the harddisk which is very slow…

You may be sure by uncheck the checkbox “displacement” in the global switches :wink: Stan

There also might be some weirdness if you didnt clear unused materials in the mat slots - might be worth checking that. Displacement calcs are one of my biggest pet peeves with the Vraymaterials website. People seem to load up the subs and have displacement checked whenever humanly possible…

Computing displacement - average 35% CPU usage!!!!!!!!!!

V-Ray V-Ray for 3ds Max Issues

visumporec March 28, 2011, 3:23pm 14

Just send you e-mail

Alex

leakage & splotches

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Computing displacement - average 35% CPU usage!!!!!!!!!!

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