How to render in MINUTES in Blender | Complete rendering setup for fast renders

a lot of you guys have crazy render times for no good reason like seriously most you guys are just sitting around or doing this waiting for your render to finish because it just takes forever but that will be no more after this video i'm going to show you all the rendering settings that i use and the same settings that ideally you should use some of them are a little bit changeable here and there so let's go over it real quick okay first things first this is the uh the robot i was working on that i guess we'll render for this tutorial so i'm gonna pull out this panel here so in the rendering settings first things first cycles of course i i don't render an ev like ever unless i'm previewing things cycles is the way to go uh if you have a good graphics card render with your gpu it's gonna be quicker in general so yeah gpu compute for me i'm using cuda rtx 2070 so that's the way to go okay rendering samples most people including myself many many moons ago i would really really crank up the rendering samples to just really unnecessary amounts like 1500 to 2000 you do not need anywhere near that you probably need like a tenth of that so uh 200 is probably still overkill for a scene like this so honestly you could probably get away with like 200 samples so put this to 200. so next is light paths now for these you have quite a bit of control i've messed with all sorts of different values and they're really not super significant now i think by default the total set to 10 in blender i might be completely wrong i don't remember something like six should be fine five or six put that for total diffuse glossy transparency and transmission you can use lower values like four that should be fine there's not really a need i don't think there's a need at all as a matter of fact to just go anywhere above four so four for all of these now volume i leave at zero because i don't really touch volume metrics that much if you are using that then i would recommend putting this up to like one or two but just leave it at zero if you're not using volumetrics really uh direct and indirect light i don't touch i leave that alone now back in the day this was like one of the prime methods to fix rendering times honestly this day and age like you can mess with these and you know swap the values out a little bit like like the good old days i don't think it's necessary at all this is like so insignificant compared to the other settings we have so yeah i would just leave clamping alone just leave it how it is that's fine uh now caustics i haven't seen a difference at all if it's turned off or on like the rendering times are generally the same so i just go ahead and leave them on because it doesn't hurt if the rendering times are the same volumes we don't touch that hair simplify motion blur obviously that's nothing we're really using for film this is really up to you if you're using an hdri then let me wait for the preview here then you can see the background of the hdri as you can see if you don't want to see it you can just turn on transparent that's literally all that does i almost always turn on transparent so uh leave that on okay the last one here is color management now this is um something that you can touch i don't have anything against it i don't use it personally because i just do all this in photoshop for post but what you can do is adjust the exposure of your render and you can do this after the render is already completed so no stress there you can adjust the exposure gamma i think of this as like brightness and contrast basically so you can adjust this if you'd like like i said if you're just going to do post after you render it then i wouldn't even bother with this stuff now since 2.8 was released or i think even like back in the 2.79 days uh filmic filmic should be on by default never change this if you go to anything other than filmic it's not going to look as good you can go watch blender guru's video on why filmic is the most important thing don't ever touch that leave that alone okay so that's the rendering panel you don't really need to touch anything else we're good there so output panel there's a few things we need to change on this one so i'm running a 21x9 uh widescreen monitor so if i wanted to render the entire size of that monitor right which in my case is 3440 by 1440 then i'll change the size of the camera which means i'd probably have to reposition it in the scene so if you want to have the same resolution as your monitor you can change that in here uh i always render in a 16 by 9 resolution 2560 by 1440 which is just a step above 1080p so this is what i usually tend to use now viewport rendering can be slow especially if you have a slower computer which means i would always recommend turning on render region because this is just going to condense it down to the area that's going to be rendered and everything else outside of it won't be touched at all it will be but you won't be able to see it which means it's not going to be rendered in the scene or bog down your system so yeah for render region take that on it'll kind of save you some viewport performance okay so this next one is super super important it was talked to me by my good friend ryu some of you probably watch him so 16-bit tiff all day every day need to use that so no jpeg no png none of this use 16 go to tiff and then click on 16 bit and you can run the alpha channel rgba now i'm not like super familiar with all the image file types i know png has transparency and jpegs like for a final product but when ryu was showing me 16-bit tiff quality levels and how it reduces banding and things like that in photoshop it was just it was amazing so 16-bit tiff definitely used that down here if you want to burn your name into the metadata of your renders you can just drop a note and put your name into it that's just something uh i prefer to do kind of like a a declaration that it's your work so you can do that layers panel we don't have to touch anything in here if you guys are still using the old denoiser it is terrible don't touch it use the new ai denoiser click on denoising data that's all you need to do and if you guys ever want to render like a z pass or a missed pass or anything you can turn those on that's just up to you i don't really use those that much though so okay now that we have denoising data on you need to set up your compositor and i'll show you why so we'll go to the compositor menu so basically you need a denoise node so that way you can get away with low sampling they kind of go hand in hand low sampling means more noise but the denoiser is going to knock all that out with a very very good accuracy without making blotches or anything weird in the scene so you can add a denoise node in here by going to filter denoise just connect it up like i have and then this glare node here you need to add in as well and the glare node set to fog glow basically gives you the bloom effect that eevee has but in cycles oh by the way be warned if you're rendering an eevee at any point you're going to get double the effect of the bloom if you still have this connected so if you're rendering an ev make sure you disconnect this or change it to something different so that way you don't get double bloom but who wants to render an eevee not me so we'll go back to the 3d viewport let's um see what else you need to change okay so there's just one more thing we need to adjust here and it is the hdri most of you know what that is now quick disclaimer here this is another little trick that my friend ryu taught me i'll link his channel in the description by the way a lot of you watch his videos um i didn't know this at first because i'm not a photographer or anything but uh just very basic flat overcast like cloudy day lighting seems to give the best result in renders and he actually showed me this compared to some like uh like rainy day or dark night type of hdris and overcast hdris are like the best thing you can have in your scene now to get this is really easy you just have to go to hri haven a lot of you have seen this site as well so go to this site i'll put this in the description as well if you want to get the same one i have go over to overcast like partly cloudy overcast just something where the lighting is very neutral most of these will work but the one i use is right here abandoned slipway i'll put this one in the description if you want to grab it now i'd recommend getting a 16k or an 8k if your scene can handle it for the best lighting effect in your scene and then after you've downloaded that what you want to do is go into the shader editor go to the world tab and make sure you have the node wrangler add-on enabled everyone should have that on and basically what you do i'll show you is you select this background node you press ctrl t and what that's going to do is it's going to add in a mapping node along with an environment texture which is where you open your hdri image so i already have mine in the scene so i'll just load that in and essentially that's going to now load the hdri and give you that lighting in the scene so in terms of just speeding up your renders you really need to focus on all the settings in the rendering panel as well as that ai denoiser that we set up in the compositor some of these other ones that i showed you like the resolution and the tiff files as well as the hdri lighting those are all important but contribute less to your render times and more for the artistic and composition purposes and just making the scene look good they're all equally as important but if you just solely want to increase your render times just make sure you have the denoiser on and the rendering settings set in here so that's about it that's literally all you need now in terms of setting up your scene and making it look good and just aesthetically pleasing i'm going to link ryu's video to his rendering settings and how to make it look good because he is way more in that zone than i am he actually taught me a lot of what i know now just in terms of composition and rendering so i'll link his video if you want to learn more about just setting up your scene and making it look good but as for just speeding up your renders this is all you need to know so uh so the last thing to do is to just render it so i've found that my tile size performance tiles i found that 1024 by 1024 tends to be the sweet spot for me now on your system it might be different sometimes five twelve by five twelve works or 20 2048 by 2048 you have to go in and test it on your own and see what is best for your system and your scene but generally 1024x1024 gets renders in under a minute for me so we'll just go ahead and just press f12 to render and give it like a minute or so so here's the final result it took just over a minute actually a minute and 21 seconds which is still fantastic and this just goes to show that even with a low end system i mean i have a decent system but if you have a low end system uh it'll take you like 10 to 20 minutes max probably so that is good news i don't mind these purple spots i was i need to update my decal libraries actually but yeah anyways that's all you have to do and for those of you that were curious about the final result here is my final render with post-processing and everything so a little bit of icing on the cake there so hopefully this video helped and i'll see you in the next video

Channel: Josh Gambrell

Views: 77,387

Keywords: blender, 2.8, rendering, tutorial, faster, render, in, minutes, 2.83, .290, ai, denoiser, animation, settings, layers, passes, image, hard, surface, modeling, blenderbros, josh, gambrell, slow, computer, time, hdri, lighting

Id: vHggpxIdTEE

Length: 11min 13sec (673 seconds)

Published: Sat Aug 29 2020