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I have an Nvidia GeForce GTX 750 GPU with two gigabytes of memory. I followed Andrew Price's Tutorial on how to make realistic towels in Blender, and I was only able to do 700,000 hairs (before my GPU ran out of memory), instead of the 1,000,000 hairs that he did. As a result, mine didn't look as realistic. I'm working on a bathroom interior, and I'm wondering if there is anyway to achieve a similar result without using a hair particle system? It's okay if it doesn't look good close up, it will be farther away from my camera in the scene. Thanks!

Anson Savage
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    For distance shots, I find a good displacement texture does the trick quite well for not quite so "fuzzy" cloth types – J Sargent Jun 06 '15 at 22:57
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    GPU rendering is sometimes faster, but is indeed limited to the available memory on the cards, which is usually limited, To render scenes that require more memory render using CPU. –  Jun 07 '15 at 17:30
  • Are you using Children? – Ascalon Nov 02 '15 at 03:34
  • @Drudge I don't believe so, what are children? – Anson Savage Nov 11 '15 at 17:07
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    Children are instances of the parents. If you use less parents and more children, it will take less memory. There is a children tab in the particle settings. Read more about them here: https://www.blender.org/manual/physics/particles/children.html – Ascalon Nov 11 '15 at 19:33
  • @Drudge , Okay good to know. – Anson Savage Nov 11 '15 at 19:40

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You could do something like what is shown here http://www.blenderguru.com/articles/how-to-render-a-complex-scene-without-crashing/

You could change the random seen on the particle system on a second layer and disable emitter visibility for one layer.

Daniel
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    Please add more to your answer, if the link path changes, your answer's value is greatly diminished. – David Oct 04 '15 at 02:54