0
$\begingroup$

I've set GPU render devices setting in both places:

enter image description here

enter image description here

I've set tiles from 256 to 2048 and to 8192.

I have RTX 3060TI and it takes 6 minutes to render 1 frame, which means 20 hours to finish my 200 frames. I think this is too slow and my GPU was only occupied for 20%.

I have set lights in the scene, what else can I do?

enter image description here

enter image description here

enter image description here

I've uploaded my Blender files in case anyone need:

Blend file: https://drive.google.com/file/d/1jAXKj_ETtRHBMGYa76Wjh7hmjlQ2V4VK/view?usp=sharing

Video footage: https://drive.google.com/file/d/1yi5QACM6ctNFA9eTZRcTQ_YPYuP_tOTR/view?usp=sharing


Note: this question is not a duplicate. The problem is related to topology and modifiers which results in lag and long calculation times. Can we reopen it?

$\endgroup$
8
  • 1
    $\begingroup$ The first file is a .blend1 backup file so there's no point putting a link to that here and your Blend file causes Blender (both 3.6.5 and 3.3.10) to hang while loading here. $\endgroup$
    – John Eason
    Commented Nov 10, 2023 at 15:04
  • $\begingroup$ I just don't know that the problem was caused by GPU not fully loaded or caused by various render settings. Because I found my computer only loaded 20% when it was doing rendering, I need help determining if the insufficient GPU usage is the bottleneck. $\endgroup$
    – JiuyeAyan
    Commented Nov 10, 2023 at 16:27
  • $\begingroup$ What Blender version do you use? I can't open your blend file with Blender 4.0 beta. It just hangs. Appending the collection doesn't work either. It seems one of the objects freezes Blender. It sounds a bit strange that a 3060 TI takes 6 min for max. 64 samples because the scene doesn't look that complex. The tile size only matters when you render out a huge image or when you are low on VRAM. If the rendered image is larger than the tile size (2048x2048 by default) it's rendered in parts to save memory. $\endgroup$
    – Blunder
    Commented Nov 10, 2023 at 17:15
  • 1
    $\begingroup$ You should mention that it takes almost 3 minutes(!) to open the file so we don't think Blender just died. Actually, you have 2 problems: long loading time & long render time. The problem is at the back plate that is behind the the grille of the loudspeaker. It looks like this object was created by a curve or SVG file. You use a Solidify, a Bevel, and a Subdivision Surface modifier. The problem is the bad topology + the modifiers, especially the Subd - it takes several minutes(!) to calculate it. Since viewport has 1 level and render has 2 levels it takes even longer for render (6 min!) $\endgroup$
    – Blunder
    Commented Nov 11, 2023 at 16:24
  • 1
    $\begingroup$ Fix: Remove the Subdivision Surface modifier (the last one at the bottom), remove the Bevel modifier (the 2nd one) or at least reduce the levels to 3 (it's a back plate, nobody sees it ;-). Additionally, you can reduce the number of vertices from 310 to 31 with the menu entry Mesh > Clean > Limited Dissolve. The mesh still has a big ngon (face with more than 4 vertices) which is not ideal but it no longer take several minutes to calculate and render. $\endgroup$
    – Blunder
    Commented Nov 11, 2023 at 17:00

0

Browse other questions tagged .