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blender tricks

sabeiro

2026-06-23 Tue 00:00

Created: 2026-10-15 Thu 16:58

blender tricks

Here is a collection of blender tricks I always forget about

render options

Sampling
noise and sample number
Light paths
from 12 to 4
illumination
limited
fastGI
fast global illumination approximation
light tree
for multiple sources
Simplify
texture limit to set
camera culling
only the objects in view are rendered
bake
the texture once (for procedural texture)
memory
lower tile size
persistent data
turned on
layer
separate collections into layers
output
exr image (faster than png)

render_sampling.png

render_light.png

render_simplify.png

render_bake.png

limited_illumination.png

render_memory.png

render_culling.png

render_fastGI.png

light_tree.png

view_layer.png

output_image.png

lights

sun
the most performant
point/area
ok
mesh light
low performance

clean up

Purge data

data_purged.png

data_unused.png

preferences

Edit -> preferences ->

system
Enable cuda
viewport
subdivision

Save startup file

preference_cuda.png

gpu_subdivision.png

startup_file.png

mesh

Simplify mesh: Edit [tab] -> [m] Subdivide: Edit [tab] -> [right click] Decimate: modifiers -> decimate

merge_mesh.png

subdivide_mesh.png

decimate_mesh.png

duplicate

duplicate -> [shift-d] instance -> [alt-d]

view

Reset orbit rotation: object -> view -> frame selected

frame_selected.png

apply to multiple objects

Apply properties (keyframes, materials, nodes…) to multiple objects

Link data : [Ctrl-l]

Or edit the field and press [Alt-Ret] to apply to all selected objects

image to video

cd ~/VideoProd/vfx/render/
ffmpeg -y -framerate 24 -i render%04d.png -c:v libx264 -r 30 output.mp4
#ffmpeg -y -f image2 -r 5 -i tmp/img%04d.jpg -s 1080x780 -vcodec mjpeg -vcodec libx264 -r 25 out.mp4
mv output.mp4 ..

comfyUI

comfyUI allows to creates ML pipelines to produce useful assets for blender:

  • rotoscopy
  • Gaussian splats
postamble