How to make Realtime Archviz with Blender and Eevee (Part 1 of 3)

Blender tutorial showing you how to use the new Eevee renderer in Blender 2.8 to create a interior scene.

In this first part, you'll learn:
-How to fix light bleed
-The best lamp to use for sky lighting
-What the "Soft Shadows" setting does

-----------------------------------------------

Follow me:

[iwa]

I LOVE how the face cam's opacity changes when the you're doing something in that corner. It's just so nice!

[--K]

Man, I'm just getting started into Blender because of you (architecture student looking to diversify software, also, I love and support any open-source software) and you just came up with this. Keep on with the great content!

[coobru]

Loving the enthusiasm when Andrew is realizing how sweet the real time render is for speed. SO AMAZING

[HaeriStudios]

To achieve real time rendering, some shortcuts have to be made and techniques need to be used that don't reflect how nature actually handles lighting.
- Contact shadows: The depth buffer can be used to ray-trace shadows. Since the depth buffer only contains information about the currently visible objects, the ray-tracing is sometimes incorrect and produces inaccurate shadows. The goal is to only fill in short distance shadows, so the objects don't appear to be floating (Peter Panning).
- Shadow Mapping: A depth buffer is captured from the perspective of the light caster (Spot-lamp). Then, according to that depth buffer, we can determine if a pixel is in shade or not. Therefore the depth buffer resolution determines how jagged the shadow boundaries are. Different algorithms are employed for smoothing out the jagged shadow boundaries. VSM (Variance Shadow Maps) and ESM (Exponential Shadow Maps) are two of them.
- Light leaks: Since one depth buffer pixel generated from the camera is used for a larger area to determine shaded pixels, some pixels end up being incorrectly self shaded (Shadow Acne). A bias is introduced to remove the self shadowing, but it also introduces light leaks and Peter Panning.


Sorry about the long text. Just thought I'd fill in some technical details :P

[JoussefJouda]

Wow Andrew! Thank you! Finally someone who understand the value of real-time render.

[chosenideahandle]

Higher ceilings were made popular (for people that could afford them) for the sake of cooling. Before air conditioning, the rich had ways to heat their dwellings, but little in the way of how to cool them. Keeping the rising heat trapped in a space high above the occupants was their rudimentary solution. I was renting a place (once owned by wealthy 17th century aristocrats) with soaring ceilings in the Czech Republic. It was during a heatwave, and I was astonished at the relative comfort without air-conditioning. I guess the trend has continued to today. As someone mentioned, it did allow for some spectacular glazing as well.

[inn]

I've been following your video for quite a long time, you're the BEST TEACHER ever, to tutor my English

[davidtoomey]

The floor was still showing light bleed both in your render and in my own as I followed along. And like you said, the walls need to have realistic thickness. I found an additional technique to reduce light bleed drastically that builds on your 'extra thickness' solidify suggestion. There was no need to mess with the bias after using this. Having an additional object as a barrier seemed to block more light than just thickening the wall, but no-one wants random barrier objects in their scene. You can combine these two ideas, without additional objects cluttering your scene, with great results. If you Apply the initial solidify modifier with a slightly smaller thickness than your goal thickness, then add a solidify modifier again with a thin thickness, then you get a double barrier with minimal overall thickening that has eliminated the light bleed on my interior scenes, including on the floor.

[lameiros]

When you finally surrender to EEVEE... eheheh ;)
I have to say this. I only start to use Blender thanks to you, Blender Guru. So... a huge thank you.

[Lattamonsteri]

Traditionally rich people had higher ceilings in their homes cuz there wasn't air conditioning and a bigger volume just meant more air in the room. The atmosphere didn't feel so gloomy with more oxygen to breath. Also more sunlight got in due to bigger windows :P But these are just a few reasons. Creativity might be one reason also, although I suspect it derives from these other facts.

[fromember]

7:15 This is the reason I had so many problems with my UVs, textures and Displacement maps and could never figure out why, It sounds stupid but when your new you don't realize scaling is very important even when dimensions seem correct THANK YOU

[daviddelayat-dnapictures]

I'm not making 3D scenes, not using 3D at all, I needed it for 1 project and discovered your work. Now I'm actually editor, and I run your videos on a separate screen ^^ You're doing a great work, and explains everything very greatly. Thanks a lot.

[hapabott]

"I was inspired by seeing some of the tutorials on YouTube"


Andrew if you only knew... if you only knew...
🤗

[anilaxsus]

20:42
Andrew : "It removes a lot of problems"
also Andrew: "The problem with this is "


xD cracks me up

[theanimator]

Finnally! I can reduce the 5mins time of renders to seconds in my sci-fi You are the best 3D tutor in the world!

[alphasatari]

Probably the most needed tutorial of 2019.

[nokey]

Can't find Bleed Bias?
Go to Render Options > Shadows > Cube Size and crank it up to max. If that isn´t enough. turn on contact shadows and tweak the Bias a little. Hope this helps someone.

[glitamichal]

For Blender 2.82 for those who still having light bleed - make wall thicker or play with clip start and bias parameters instead of bleed bias, have a nice day. Btw. very useful tutorial

[GrandMaster.Smile.]

Very nice done man, you're not called Blender Guru for nothing! This is exactly what I'm working towards for quite a while, to create a realtime Art Gallery as virtual blue print for my Art & Lifestyle Academy Projekt. Actually the reason why I began to work with blender. Awesome!!!

[zumba]

Thank you so much. Your tutorials are uplifting me every time I get frustrated. Excellent teaching skills.