Google Maps 3D: Photogrammetry Mesh Clean-up

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In this video I show you how to clean up a mesh imported from Google maps 3D. This tutorial covers mesh clean-up, removing materials, two methods for uv unwrapping, and how to bake colours from the old mesh to the new one.
You can see the previous video on how to extract Google maps 3D data here:
• Google Maps 3D: Data i...
You can download the incredibly useful Meshlab here:
www.meshlab.net/#download
And here is the code for removing all the materials from the active object (make sure you have only one object selected when you run it):
import bpy
C = bpy.context
for i in range(0,len(C.object.material_slots)):
C.object.active_material_index = 1
bpy.ops.object.material_slot_remove()
bpy.ops.object.mode_set(mode = 'EDIT')
bpy.ops.mesh.select_all(action = 'SELECT')
bpy.ops.object.material_slot_assign()
bpy.ops.object.mode_set(mode = 'OBJECT')
This process can now be automated! Check it out:
• Cleanup Map Tiles Fast...

Опубликовано:

24 июн 2024

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Комментарии : 302

@Nicko16 10 месяцев назад

This process can now be automated! Check it out: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-aQnkMUATdzI.html

@DodaGarcia 3 года назад

I just spent five hours in frustration trying to clean up a neighborhood enough to import it into Unreal and was just about to give up and use one of those very templately-looking building packs, so this will absolutely save me. Thank you!

@ahmadmohammadi2396 Год назад

It depends on what you want to do, if you want to develop a game with random environment, templately-looking building packs, or builidify blender works, but if you want to do kind more scientific work, then spending so much time is the only choice.

@Missi0n141 4 года назад

Can't thank you enough for this tutorial. Brilliantly clear in the explanation even as a complete beginner with Blender!

@lambchops808 3 года назад

This and the last video are INCREDIBLE. the efficiency in explanation is so good.

@jonclement 4 года назад

i've never used blender but I enjoy watching people create! Great tutorial, you'll save people a lot of headaches

@LloydSummers 3 года назад

This indeed worked very well for me, thank you. I had to get the right software configuration, and some extra cleanup steps around decimation, but within an hour I had 3 different city areas converted out. Thank you.

@josiahjack455 3 года назад

These are really well done tutorials, excellent pacing, good notes and warnings.

@AWSVids 4 года назад

In one video, you’ve made at least a few other Blender tutorials I’ve watched obsolete. They’ve showed me the hard way to do things like retopoing and uv unwrapping... you come along and show me “Hey, there’s literally automatic solutions to these things.” Thank-you. Problem is, I no longer trust any other Blender tutorials but yours, and you don’t have enough! 😫

@hanhu8510 4 года назад

Thanks for this tutorial. This is exactly the same thing we are trying to do!

@jojo-lp4rd 4 года назад

Really well explained, this is a great tutorial for all kind of reasons. I really like how Meshlab cleaned up the uvs, I feel like I'm going to need that program in my workflow to do for other models.

@tsunchoo 3 года назад

Great tutorial - clear and concise and the chapters really help

@lebenin3604 4 года назад

Really appreciate your videos on #photogrammetry techniques. Thank you.

@nikolaysalutski3270 3 года назад

brilliant tutorial! well structured clear and informative - thank you!

@lansraad6142 4 года назад

Thank you so much! This has helped tremendously

@B-water 3 года назад

Another gift from Heaven...great job...thanks

@SkyfighterZX Год назад

Thank for the tutorial, really easy to follow and straight foward, i found i few issues and want to share how i circunvented them for other users. Blender hangs/freezes during the UV Unwrap: this is normal and you should let it sit there not clicking the window for some time, consider the specs of your pc and the size of your mesh, i would say worse case, leave it for 2-3 hours if needed, if it doesn't finish just scrap the method and use the alternative one in the video, it took seconds to me that way (edit: i retried with a much smaller mesh and still took a long time but it worked this time, probably my pc not being able to compute such a large number of faces and vertices in a reasonable amount of time) blender crashing while trying to bake the texture: my blender was instantly crashing after i hit bake, i solved it by lowering the resolution from 8k to 4k, this solved it for me my pc is super old so maybe thats why i had issues

@opm3d167 4 года назад

Ufff. You came 24 hours late... Thank you so much. It´s cool.

@k995100 4 года назад

Tried the best way to get cleaner topology and found the blender remesh tool to be the best way. Gives you a very clean mesh with a decent topology.

@aeonbreak4728 4 года назад

do you have the exact settings to share?

@k995100 4 года назад

@@aeonbreak4728 Usualy (in 2.82) : mode sharp depth between 8-10 scale : 0.9-0.99 sharpness 1 dont remove disconnected pieces.

@alefedartagnan4256 8 месяцев назад

If the bake results in a black image, this is because the google maps tile material dont have color, only emission. Just change the Bake Type to "Emit"

@badadvice4076 5 месяцев назад

where so we change the bake type to emit/ is it before or after? ive tried it in the scriot and still a black map. thank you in advance for your response

@dar780 2 года назад

Great Tutorial! thanks for sharing.

@AlexandreRangel Год назад

Thank you, Nicko! Very useful!

@alhdlakhfdqw 3 года назад

such a great informative vid thank you very much! :)

@wojciechzaczek4729 5 месяцев назад

Perfection! It works :) THX!!! Downloading from Google Maps with Blender 3.4 [Render doc 1.25, MapsModelsImporter-v0.6.2], newer ones don't work. Fast UV Mapping and texture baking with the newest (for now) Blender 4.0.2.

@Medienmechaniker 4 года назад

3:14 so basically a day huh :D great tutorial

@notsure1969 4 года назад

I can't wait to try this.

@travh98_ 3 года назад

Thank you so much! I needed this!

@elgalopinos 3 года назад

This is a great video on how to process the mesh from the Google maps. I have a question... what about the night textures?. In your example, you have lots of buildings with windows...how do you handle the night textures? Thank you very much for your great help, I really appreciate it

@bim-age 3 года назад

Thank you, this is a really great and tecnical tutorial, I probably watched it 5 times or more before doing it by myself. There is a good easier and quicker process alternative; you could simply shrinkwarp a subdivised plane on your mesh, and bake on it; cristal clear mesh, UV and texture.

@pianoscapes09 3 года назад

bro teach me please

@legrandcolin 2 года назад

Meh, what about all cavities

@jojo-lp4rd 3 года назад

hey this video helped me out a lot for just baking textures onto a new uv in general. I am not sure how blender does this (magic?) but if you import an fbx, make a copy of it, then redo the uvs (for example if it uses only part of a texture atlas) - then do the same technique shown in the video to bake the texture from the old model to the new one, it gives you a new texture that goes with your new uvs. Brilliant! The tip about 'ray distance' and 'margin' fixed some glitching. Wonderful tutorial that has a ton of potential for enabling creativity - thank you!

@dreadmn 3 года назад

mathemagics

@SteveWarner 3 года назад

If you don't want to use the script to clean the materials, you can just select your object, then select a default cube (or any other primitive) and use the "Copy Material to Selected" from the drop down menu in the Materials panel. That will take whatever material the active object has and make every other selected object have that same material. If the active object only has one material (or even no materials), all selected objects will get just that one material. The hundreds of others will be removed from the object.

@masimons165 Год назад

Even easier: add cube, select object, shift select cube, CTRL + L, materials.

@soma78 11 месяцев назад

@@masimons165 not working

@jplsfx 3 года назад

Hi Nicko, I have one question : what is your best merge vertice distance value (not visible on your video) ?, great job, wonderful technic, thanks a lot for sharing!

@johanneszwilling 4 года назад

Thank you so much! Last step would be the (free) Agisoft Delighter!? To get rid of the shadows so we can relight the model any way we want?

@PizzaTimeGamingChannel 3 года назад

0:18 - Part 1 - Mesh 1:00 - Part 2 - Materials 2:04 - Part 3 - UV Map 3:21 - Part 3a - UV Map - Alternative Method 5:15 - Part 4 - Texture Baking

@yash1152 3 года назад

this shall be put in description with credits and thanks to the op....

@user-jv9tv6cb8q 3 года назад

Thx for it . So helpful 🤠

@nathan1459 Год назад

Yes. Thankyou!

@rogermachin1046 3 года назад

Hi all, thanks for this tuto, Nicko16, nice ! so , i have just add two things at your process : first) , after the smart UV , remake another Merge by distance, and another smart UV . Second) in bake, selected to active: put extrusion à 0.0001 give a more beautyful texture .

@joshuasprinkling5450 Год назад

YES! That is the perfect fix!!! Thank you.

@edwardwilliams2564 3 года назад

Thanks for the tutorial. Could you please do a tutorial on how to merge two sets of map data brought in from Blender GIS? I can't seem to figure out how to get them to merge the edges cohesively to make a decent game map.

@andy135andy1 3 года назад

Thanks for your tutorial! I followed the tutorial to import the mesh and tried to clean it up for 3d printing, but it seems that there were so many non-manifold that it is not usable for 3d printing. Do you have any idea on how the mesh imported from google map could be cleaned up for 3d printing?

@rilosvideos877 3 года назад

Great job and nicely explained! Do you know of something similar for cinema 4d?

@maurice0822 3 года назад

Great tutorial. Is this the same process to create 3D printed maps showing buildings, roads and water?

@timothykwok5070 4 года назад

Hey Nicko! I'm wondering if it's possible join smaller pieces of 3D areas into a larger area? Thank you for time and effort taken to create amazing tutorials btw! You've been great help.

@Nicko16 4 года назад

This might be what you're looking for. Check out Elie Michel's new tools, for example: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-BcGM76dwF_s.html

@timothykwok5070 4 года назад

@@Nicko16 perfect! Thank you

@OGmolton1 3 года назад

great video, thanks :)

@jellykid 3 года назад

How are your buildings so neat? Mine come in all blobby if scan from the previous tutorial works at all

@jso19801980 Год назад

thankyou for great tutorial, I tried using your script which is working well I think, i was wondering though which window do i need to open to see the script feedback?

@sebastienc8870 3 года назад

amazing.Thank you!

@MAIRENASEV 4 года назад

Thank you very much,

3 года назад

Hello Nicko16! Many thanks for this tutorial series. It really helped me a lot. However i find an issue that maybe you can help me with. After the baking process the texture has some "holes" and looks like it lackes pixels in the baked texture. How can i solve this? Thanks in advanced!

@sircher943 4 года назад

I've been trying to do this yesterday and did all of this myself but had to research a lot, the raw data is a big mess.

@bendazzarius8359 3 года назад

tank you so much very good tips

@tobymdev 4 года назад

Any idea on a simple way of cleaning the messy topology? Absolutely based tutorial, thank you.

@tobymdev 4 года назад

I have found a nice way to create a simple clean mesh but it only works on big cities or other simple non convoluted forms (no undersides) by shrinkwrapping a subdivided plane onto the buildings skyline.

@k995100 4 года назад

@@tobymdev Care to make a tutorial of that? Tried but cant really get decent results

@Missi0n141 4 года назад

@@tobymdev That sounds really interesting solution. Would also be interested in a short tutorial / write up on this

@Qubot 3 года назад

Awesome, thanks a lot

@philhighfield4741 11 месяцев назад

nice tut, thanks a lot! Shame I am using c4d, wondering if there is a similar texture transfer option there!

@chrisgrieve5425 2 года назад

Thanks for the video! Have you ever imported one of these into Revit? the mesh is fine, just struggling to map the texture/ material to it...

@joweslandergames6299 3 года назад

Dude your the best

@jasonspiller4346 3 года назад

Great Tutorial, really helped me out. One question. Sometimes when I join all the elements together I lose sections. Any thoughts on why this might be?

@reumarks 3 года назад

Hi, I can't be that helpful without seeing your project or getting more details into your workflow. But, I'll try my best. If you are following the tutorial exactly as he has laid it out, that part shouldn't be that error-prone so long as you are selecting all the objects in the collection. My only advice would be to make sure you are selecting all the objects before joining them by quickly scrolling through your scene collection before pressing ctrl+j. Alternatively, assuming this is being imported into a clean scene without a camera or lights, you can press "a" to just do a basic selection so that you aren't missing everything. Beyond that, if you are doing this in a scene that has other stuff already beside this google maps import, then just create this in a new file to avoid clutter so that it is easier to avoid other things causing confusion. You might also want to check that all objects in your scene are visible before trying to select them using "a", you can do this by pressing Alt + H. Hope this helps or that you have already figured it out, and if you have more precise questions then I can hopefully be more helpful :)

@odamariagunnarsdottersulhe5620 3 года назад

Hey brilliant tutorial, very accurate and precise and effective. I had 300.000 vertices to start (from google earth). Everything went like you described, but I ended up with a .obj file of 25 MB and a baked image of 125 MB, can that be right...?

@bim-age 3 года назад

I found out that after the "merge vertex by distance" but before the "duplicate mesh" you can apply a "limited disolve by UV at 20/25°" really helps to clean and simplify the mesh too.

@ahmadmohammadi2396 Год назад

I did this, although we simplify mesh, but, textures will get messy as the original shape will a bit change

@littlemountaintv 4 года назад

Thanks for this I want to 3D print my city! But is this the best method to print the detail of the buildings? Or should I use different settings in blender to texture the buildings before exporting a stl?

@Notchur.Architect 3 года назад

you're 3d printing the mesh OR the mesh with image data? what kind of 3d printer are you running?

@mikedevyatov3213 3 года назад

@@Notchur.Architect not the same person but I want to print a city neighbourhood by neighbourhood on an epoxy printer(anycubic photon mono x). It has a 4K resolution if that makes a difference.

@AArmstrongC Год назад

Thanks!

@aporelly 2 года назад

amazing, thanks a lot :-)

@LuisManuelLealDias 2 года назад

Best tuturial in the internet. Just a question. I get tons of black small dots and triangles in the baked texture. How can I get rid of those? It seems that it has to do with the two meshes being so near each other? IDK.

@trepaning 2 года назад

in Bake options for Selected to Active, try Extrusion at 1m and Max Ray Distance at 2m, worked for me.

@LuisManuelLealDias 2 года назад

@@trepaning will do, that actually makes sense. thanks!

@ashdalat. 3 года назад

no, you dont need to say "thank you", thank you for teaching me :>

@Yolwoocle 4 года назад

If only I knew that earlier, thanks a lot!! I have one question: I noticed that when I zoom out and take a google maps capture, the resolution of the mesh gets smaller (there's less geometry). Is there any way I can get ALL the geometry? It would be really useful for a project I'm working on where I need to import a really big model, and I can't see how I could do this other than taking lots of close-up captures. Thanks!

@gravnine 3 года назад

I have the same problem

@joaotitodemorais8687 3 года назад

Reduce your browser zoom to 25%, move around the area you want to capture to load ot up, then capture from aligned top biew by pressing the compass on google maps

@Yolwoocle 3 года назад

@@joaotitodemorais8687 Thanks!

@johnvogt3888 3 года назад

Thanks for the tutorial - really helpful. After the bake, I get lots of little holes in the texture - any thoughts on why or how to fix?

@rogermachin1046 3 года назад

in bake, selected to active: put extrusion à 0.0001 give a more beautyful texture .

@johnvogt3888 3 года назад

@@rogermachin1046 thank you !

@91Soulja 3 года назад

Hi Blender Community , much thanks to Nicko for sharing his techniques ! BUT I still have the same issue when i follow the steps : a lot of black faces after doing the bake. I have tested with meshlab and smart uv projetct, had a look on the normals directions, i still don't get what i missed !!! If someone has found the solution, it would be nice to share it ! At least I see that Nicko has just 92.000 vertices from his RDC capture and it seems to be a big view, the vertex count of my .rdc is around 200.000 (twice more) and in my view i just voluntary took one central building in a spaced area, not to overload and then to hope that my baking would be ok as in the video.

@MinhNguyen-vl7jj 9 месяцев назад

anyone found the solution yet?

@3bnui 3 года назад

Hi Nick, I saw your outsourcing offshore video and i wanted to uv map a room picture onto a 3D model, but i'm really stuck and need help. Are you by any chance able to help me out?

@KashishSharma93 2 года назад

Hey, thank you for your tutorials. its easy to understand for someone not used to blender like me. However, after I bake the final texture comes out as broken and not like the way it should. I have tried baking with all the settings advised by you couple of times, yet the output remains unchanged. I will be glad if you could help with it. Thanks!

@RoryColeman Год назад

@kashish sharma same here! Did you ever sort this out? @nicko any thoughts on this? The Margin and Selected to Active options have changed since you made this so not sure if tha'ts part of the problem - thanks for these tutorials!

@KashishSharma93 Год назад

@@RoryColeman nope. i actually ended up using the model without any texture

@tonybuddy8639 2 года назад

Thanks

@holobolo1661 3 года назад

How do you make a new UV map? video seems to skip at that point

@marcobelletz4734 3 года назад

The script you posted, if the scene is bigger takes a LOOOOOOT of time. Like hours. I found this one tha does the same in just two minutes: import bpy obj = bpy.context.active_object mesh = obj.data while len(mesh.materials)>1: mesh.materials.pop()

@trupale1 3 года назад

Thank you for this tutorial!! Liked and subscribed! I was following it but for some reason when the textures are baked looks like they have a very pixelated shadows on them which makes the whole texture look pixelated. I tried 8129, 4096, 2048 resolutions. Everything else is set following the tutorial. Any ideas what can cause this?

@trupale1 3 года назад

Basically buildings have black dots everywhere

@BootyFebacca 3 года назад

I just ran into this problem as well today. I can't find a solution either. I've done this before on my laptop with no problems. This is my first time trying it on my new desktop rig, but I encountered this error.

@jdathela 2 года назад

I'm having this issue too. I tried GPU instead of CPU, which seemed to help but the problem still exists.

@piotralekseyevichvakulinch9525 4 года назад

Have you tried to retopology the mesh? It'd bee great to make video of it.

@rogermachin1046 3 года назад

i think it's have too many vertices for make a retopo . but with a good video card , perhaps , mine is too slow, have you try it ?

@user-ki4kz7mm4w 3 года назад

If i want to make a series open world 3A game ,shold i pick unreal or blender?

@giuseppeconsiglio5167 Год назад

bravissimo grazie

@SimonasSileika 3 года назад

thanks!

@sebtiew 4 года назад

nice!

@matejsvoboda9438 3 года назад

How can i reduce the polygon count ? Maybe by some approximation of geometry or i dont know, but is there a quick way to do it, if it doesnt have to be precise ?

@Sh-hg8kf 4 года назад

Can this plugin work on 2.79? My Intel HD3k doesn't support the opengl version needed for 2.8

@irl962 4 года назад

for some reason my mesh doesn't have clean lines if you get my meaning ? if there a way to clean it up more ? like maybe smoothing which i forget how smh.. ?

@scamberkk 3 года назад

Meshlabs crashed every time when im try unwrap, do you know another method (except blender smart uv)?

@Jonstyle69 4 года назад

nice video, but I don't seem 3d in my google map, it's still works?

@dreadmn 3 года назад

you'll get a plane image in the format of the terrain

@ChristophLS Год назад

Hi, thank you for the video. When I want to join the objects, the texture get's mixed up completly. any ideas?

@i3d3 7 месяцев назад

With removing materials, I think it's easier and faster for those who don't like scripts to just select all the faces, apply the first material slot to everything, then use the remove unused materials option, and then remove the last remaining used material. Only a couple of steps and does not involve copying/pasting code or writing it yourself.

@SirLithen 4 года назад

6:35 I know this was a problem with AMD GPUs back in ~2017, as they rely on OpenCL instead of Cuda. Not sure if that is still the case, but worth keeping in mind that AMD GPU support is generally worse in Blender.

@murcsi9510 3 года назад

Yes, that's still the case, only Nvidia has the license to use Cuda

@SirLithen 3 года назад

@jefha Performance wise, there is nothing wrong with AMD GPUs, it's the implementation and drivers. The hardware is fine.

@derakon4791 2 года назад

when you import and edit it in blender ? you can import it in unreal engine 4 too ? for game

@MichaelFlynn0 3 года назад

at 2.46 you say you will create a new UV unwrap and then there is a cut...what happens right there ? How do you 'create' a new one without going into meshlab ?

@naikjoyx4291 4 года назад

... if the texture is then enhanced with some neural networks/deep learning stuff.. do you think it would be good enough to use this as an asset to make a playstation 1 style gfx game?

@tomi4717 3 года назад

If you haven't tried yourself yet, I'd do it and give you a feedback soon.

@alessandrotoschi1426 4 года назад

In the end, what is better in terms of quality between the import using Google Maps 3D and the one with Blender GIS?

@MrFlavum 3 года назад

Personally the Google Map models and textures look much better for me vs the GIS EDIT: Also the GIS only seems to work well with larger cities. I tried my hometown and it barely picked up half a dozen buildings in downtown.

@hamuArt 3 года назад

Hello I missing something at the bake. When I select first mesh and than hold Ctrl and select the second I lost selection from the first one. :/

@DropArum 4 года назад

my baked mesh looks all messed up :(

@tal0tal0 3 года назад

Thank you, I learned a lot with your tutorials but once I bake, the texture resulting is 95% black... I just can see pieces of grass in the buildings, any idea about what could happend?

@rogermachin1046 3 года назад

roger Machin in bake, selected to active: put extrusion à 0.0001 give a more beautyful texture . :;-)

@xaviermadden4076 3 года назад

@@rogermachin1046 Life saver!! Legend

@jinnavalon1704 2 года назад

@@rogermachin1046 Life saver!!

@MrTeeF Год назад

Suddenly only getting blank Alpha images for the bake texture? What am i doing wrong?

@anandhups8341 3 года назад

Sir is there any way to find an alternative for fspy. I dont wanna use multiple softwares.

@IndigoKidda 2 года назад

when you say make a new uv map before unwrapping it how do you do that, you dont show that bit so im stuck

@arcarcarc376 2 года назад

Puedes hacer un video del renderdoc mas actual no entiendo como utilizarlo!!! gracias

@kcalb3180 2 года назад

is there a way to remove trees? I have all these tress which is really annoying

@matthew_brown 4 года назад

How does this look at street level?

@alfredoconesa9737 3 года назад

I'm sorry but I have tried several times following step by step and I don't get a good result. I think my mistake is at 2:44 - 2:45. There is a small jump and I can't get the vertices of the model selected with the clean UV Editor. Can anyone help me?

@dreadmn 3 года назад

all my extractions lose quality after smart uv, what can i do??!

@DodaGarcia 3 года назад

Are you sure the resolution you set for the UV isn't too low?

@Angelo_Trifilio 3 года назад

Very useful tutorial. Strangely, the baking of the textures was not as simple as I thought and after a successful first attempt, the remaining tests resulted in a completely black texture.

@RintarouOkabe9 2 года назад

How did you fix it? What mistake where you making? I get a black texture too.

@Angelo_Trifilio 2 года назад

@@RintarouOkabe9 I don't know if it was my fault or a Blender's limitation, or just the scene complexity. Anyway, I just gave up with Blender, even because I'm very limited with it, so I switched to 3ds Max, but wasn't able to find an automated procedure to put everything into a single and clean texture... there were artifacts all over the place... so, baking wasn't an option due to heavy face overlappings. Cleaning up the mesh was heavy time consuming, so I decided to keep everything into a single multi-texture material... it was a mess anyway, due to other problems and limitation I have found during the process. At the end I just developed my own workflow to cover 2,5 chilometer squared and to be honest, I'm really scared to repeat the whole process another time.

@alefedartagnan4256 8 месяцев назад

the google maps tile material dont have color, only emission. Just change the Bake Type to "Emit"