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In User Preferences > Editing > Allow Negative Frames > checked and saved.

I want to let physics items to settle before rendering an animation both in cycles and with OpenGL. But How do I tell Blender to start playing at frame -10 yet start rendering after 1?

Eric Huelin
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1 Answers1

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It depends of what type of physics you want.

For example, cloth simulation. In cache settings you can set start value negative:

enter image description here

You can noted, that this value limited by 1, but this not right. Click in center of value "Start" and enter negative value from keyboard. It's not a bug, many values in blender can be redefined in this way, for example 200% render resolution.

In other types of physics there is another option "offset". Like in water simulation. Offset shift all frames in time back and forward.

enter image description here

And of course, Allow Negative Frames in this case is useless.

Crantisz
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  • I didn't work at first as it didn't buffer when I started at frame 1. Figuring it went from -100 to 0 buffering. But it did when I started the animation at frame 100 and it buffered from 0-99. – Eric Huelin Nov 29 '17 at 23:33