Re: [Bf-committers] Cycles performance on Windows

2013-05-13 Thread Ton Roosendaal
. -Ursprüngliche Nachricht- Von: bf-committers-boun...@blender.org [mailto:bf-committers-boun...@blender.org] Im Auftrag von Ton Roosendaal Gesendet: Samstag, 11. Mai 2013 18:43 An: bf-blender developers Betreff: Re: [Bf-committers] Cycles performance on Windows Hi Jurgen

Re: [Bf-committers] Cycles performance on Windows

2013-05-13 Thread Jürgen Herrmann
...@blender.org] Im Auftrag von Ton Roosendaal Gesendet: Samstag, 11. Mai 2013 18:43 An: bf-blender developers Betreff: Re: [Bf-committers] Cycles performance on Windows Hi Jurgen, You're very welcome to join the windows platform team as maintainer for MSVC 2012. Did you already have patches

Re: [Bf-committers] Cycles performance on Windows

2013-05-13 Thread Gavin Howard
break compatibility. /Jürgen. -Ursprüngliche Nachricht- Von: bf-committers-boun...@blender.org [mailto:bf-committers-boun...@blender.org] Im Auftrag von Ton Roosendaal Gesendet: Samstag, 11. Mai 2013 18:43 An: bf-blender developers Betreff: Re: [Bf-committers] Cycles

Re: [Bf-committers] Cycles performance on Windows

2013-05-11 Thread Ton Roosendaal
Hi Jurgen, You're very welcome to join the windows platform team as maintainer for MSVC 2012. Did you already have patches we should apply? We typically give people commit access after a couple of good patches. -Ton- Ton

Re: [Bf-committers] Cycles performance on Windows

2013-05-11 Thread Jürgen Herrmann
-committers-boun...@blender.org] Im Auftrag von Ton Roosendaal Gesendet: Samstag, 11. Mai 2013 18:43 An: bf-blender developers Betreff: Re: [Bf-committers] Cycles performance on Windows Hi Jurgen, You're very welcome to join the windows platform team as maintainer for MSVC 2012. Did you already

[Bf-committers] Cycles performance on Windows

2013-05-10 Thread Jürgen Herrmann
Hi there, With all major bugs an porting issues fixed we ran some tests with different builds of blender for Windows 64 bit Results can be seen here: http://blenderartists.org/forum/showthread.php?290177-Lets-speed-up-blender What seems strange is the fact that cycles performs best when built

Re: [Bf-committers] Cycles performance on Windows

2013-05-10 Thread Antony Riakiotakis
According to the MinGW64 developers, the math library implementation is faster for gcc. The simulations use openmp which is disabled in MinGW64 due to their buggy pthread implementation which makes openmp hang when used during pthread execution. ___

Re: [Bf-committers] Cycles performance on Windows

2013-05-10 Thread Jürgen Herrmann
This sounds reasonable. So we need a lightning fast math library replacement for MS compilers... I'm just kidding, but the idea might be insane enough to try ;) I am very satisfied with the speed improvement that MSVC 2012 has brought to blender. I would love to see this in the wild. It could

Re: [Bf-committers] Cycles performance

2012-03-06 Thread Brecht Van Lommel
Hi, It's probably more compiler dependent than OS-dependent. Visual studio does not compile the render kernel as well as gcc. I've been developing with gcc, so that has some influence, and it's probably possible to tweak the code such that it compiles faster on visual studio. Thread management

Re: [Bf-committers] Cycles performance

2012-03-06 Thread Mike Pan
You are right Brecht, I just tested with a GCC-built Windows version of Blender an the result is comparable with that of Linux/Mac. Thanks! m On Tue, Mar 6, 2012 at 5:17 AM, Brecht Van Lommel brechtvanlom...@pandora.be wrote: Hi, It's probably more compiler dependent than OS-dependent.

[Bf-committers] Cycles performance

2012-03-05 Thread Mike Pan
Not to start another OS debate. But... I noticed that the performance of Cycles is very OS-dependent. With the old rendering engine, the OS can influence the rendering time by ~10%. But with Cycles, i am seeing a huge difference in performance between Windows and Linux/Mac, where Linux/Mac is