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Brian Trepanier (trepaning)
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Mon, Feb 10, 12:31 AM (1 w, 5 d)

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Tue, Feb 11

Brian Trepanier (trepaning) added a comment to T73701: Stereo render display significantly slows down rendering.

I do not know how to turn show_stereo_3d on and off but

Try rendering with and without this option:

Tue, Feb 11, 7:57 PM · Performance, Rendering, Render & Cycles, BF Blender
Brian Trepanier (trepaning) added a comment to T73701: Stereo render display significantly slows down rendering.

Mike Pan's test file rendered at 7 seconds as individual,
but 1 minute and 12 seconds as stereo.

Tue, Feb 11, 3:08 PM · Performance, Rendering, Render & Cycles, BF Blender
Brian Trepanier (trepaning) added a comment to T73701: Stereo render display significantly slows down rendering.

I do not know how to turn show_stereo_3d on and off but

Tue, Feb 11, 2:59 PM · Performance, Rendering, Render & Cycles, BF Blender

Mon, Feb 10

Brian Trepanier (trepaning) added a comment to T73701: Stereo render display significantly slows down rendering.

This is most definitely not an issue caused by system memory limitation. We've seen very similar behavior when rendering 6k panorama images in stereo. When the rendering is being displayed on screen, you get a dramatic (2-5x) slowdown in render time. This ONLY happens in stereo renders.

It still seems related.
"stereo renders" = two images to render at the same time = more memory required.

Mon, Feb 10, 11:24 PM · Performance, Rendering, Render & Cycles, BF Blender
Brian Trepanier (trepaning) updated the task description for T73701: Stereo render display significantly slows down rendering.
Mon, Feb 10, 11:07 PM · Performance, Rendering, Render & Cycles, BF Blender
Brian Trepanier (trepaning) added a comment to T73701: Stereo render display significantly slows down rendering.

my system specs

Mon, Feb 10, 11:03 PM · Performance, Rendering, Render & Cycles, BF Blender
Brian Trepanier (trepaning) updated the task description for T73701: Stereo render display significantly slows down rendering.
Mon, Feb 10, 12:42 AM · Performance, Rendering, Render & Cycles, BF Blender
Brian Trepanier (trepaning) created T73701: Stereo render display significantly slows down rendering.
Mon, Feb 10, 12:36 AM · Performance, Rendering, Render & Cycles, BF Blender