I’ve spent some time recently doing some of the Blender tutorials out there on the internets, in particular Blenderguru.com’s asteroid tutorial, which uses a particle system to create some small rocks around a large asteroid in space.
I noticed that, while working with the particle system, Blender gets slower and takes some time to respond to user input (mouse clicks etc.) and navigating the 3d viewport gets really slow, like when playing a game that is too demanding for my video card.
Here’s my system: Win7 x64, AMD Phenom2 x4 @3.7 GHz, ATI HD 5850, 4GB RAM
Newest drivers are installed.
I am using Blender x64 2.56.5, a build from graphicall.org
I’ve had a look at the CPU and GPU load while experiencing this, and neither are anywhere near 100%. The CPU load is always somewhere around 25% (average of the 4 cores) and the GPU has virtually no load at all. I just wonder if there is anything wrong with my setup (drivers, blender setup etc.) that might cause this?
Also, while rendering (blender render), the CPU load does not exceed 40% (again, an average of the 4 cores). I have tried both the automatic and manual settings of the no. of threads. The RAM slowly builds up to full load (4GB) while rendering. Is it possible that the size of the RAM is limiting the CPU performance? Using luxrender, CPU load is at 100% all the time.
This is getting a bit annoying, I appreciate any advice.