5 Blender Tips That Have Saved Me 100+ Hours

Today, we are learning 5 ways to increase our render speeds with Blender cycles.

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[dubblesnup]

1. Noise Threshold
2. Denoise
3. Instancing (alt+d instead of shift+d)
4. Light Paths
5. Imposter (Using planes instead of 3D Meshes for far away objects, such as trees)

[iAmPyroglyph]

OptiX tends to be faster but has more artifacts, so a general rule of thumb is:
- Optix for Viewport Rendering (speed preference)
- OIDN for Final Rendering (quality preference)

[RDBLAZE]

One more thing I would like to add here, if you’re increasing the noise threshold from 0.01 to 0.1,
You gotta increase the sample count too from like 500 to 2000👍

[DestroyerV]

OMG 2:27 THE MUSIC, all the childhood core memories unlocked!

[abeblue]

Smeaf, even if sometime i'm not intersted of your content, your editing is so satisfying that i can't switch for another video.

[Achelon]

I'm a 3D-graphics/gaming teacher, and I've been coding a 3D-engine myself for fun. It amazes me how much I learn about 3D-graphics when I've been doing something so low-level stuff that I didn't know before

[GANONdork]

To add on to the texture optimization bit, you can get away with fairly low resolutions for the various information maps. In most circumstances, roughness and metallic maps can be 1k or lower, and you won't notice the difference. The key texture maps that should be kept high resolution are the Color/Albedo and Normal maps. Everything else can be downscaled drastically. Also it's a smart idea to combine the various information maps into one. Since they're all grayscale you can put each one into a seperate color channel on the same image. R-Metallic, G-Roughness, B-Ambient Occlusion, A-Displacement. Node Wrangler's automatic PBR setup won't know what to do with it, but it'll cut down greatly on how many textures will need to be loaded and will reduce the clutter in your node tree.

[JustCallMeElGamer]

I remember when on of my scenes I had to optimize it due to nearly crashing when I render it, using a bunch of grass particles and trees, I optimized it alot by using weight paint on the grass, more grass on my main subject to less and less grass, nearly cutting my grass count by half, then using instancing on my trees, this was so fun to learn and now know to use om my future scenes

[Naev_Studio]

Ho thank you so much!!! It comes at the right time, I rendered a scene yesterday which took 4 hours, I applied all the advice from the video (instance, bounce light, no 8k textures, and so on ) and now it only took 1h30 :)

[alinsavix]

For lighting optimization, take a look at "Super Fast Render" -- it's a free addon that will go through and test a bunch of different values for your lighting bounces and such, and figure out at what point increasing the bounce count stops making a difference, and leaves your settings configured with the exact number of bounces you need, and no more. Great way to get some performance back without much effort or any real quality loss.

[GrumpyWolfman]

Thx, Smeaf! I rendered out an animation and it took over 7 HOURS yesterday, can’t believe how perfectly timed this vid came out!

[mega-ubef]

Someone get an award to this guy for his music selection.

[Coder_LP]

What in the world did his tips do to my PC?!?
It was like 207 samples from 4096 and suddenly it's done???
This video deserves much more attention and likes, thank you Smeaf!

[TheBigfootdood]

I strongly suggest experimenting with 1 sample rendering because can be really helpful to highlight things that generate noise that you otherwise wouldn't have thought of! Like area lights can make or break a render if not optimized well.

[GaryParris]

good work! all things i use currently, but it's always good for people to hear these in case we missed something or are new to it :)

[wavetro]

i keep forgetting these basic render optimizations, thanks for putting them all in one video!

[gugu]

the transitions and illustrations being just random videos you saved is honestly pretty fun

[EchidnaGaming]

Fantastic music choices in this video, don't think that Age of War song went unnoticed, great video!

[obsidian]

in regards to texture optimization for heavy scenes - as a basic guide i take a full size render, then measure the object in pixels and whatever the dimensions are i double or triple them depending how far away the object is and that's my required texture size. You can resize the textures in blender but I use powertoys with windows explorer because it's faster.

[zallesyn]

heck yea, the modnation racers soundtrack at the start shows me you truly are a cultured man