Questions tagged [photogrammetry]

Photogrammetry generates information about physical objects through the analysis of photographs. It is used in 3D modeling to generate models and textures in a workflow that can involve Blender. Use this tag for questions about photogrammetry that relate to Blender and not other parts of the workflow.

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3D Gussian Splatting looks strange after import

I am trying to import a 3D Gaussian Splatting scan into Blender using the plugin from this tutorial. But for some reason, the scan looks terrible in Blender (although in Unreal it looks like it should)...
Rumata's user avatar
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31 views

Texture re-mapping a complex model generated with photoscan 3D

I need to model 3 complex objects. They are made of chocolate. 1 Little bear 2 Dog 3 Santa hugging snowman Final use is for a 3d viewer online. So topology is not priority. I run the way of 3D ...
matteo's user avatar
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69 views

How to extend mesh at the edge of a photogrammetry model

I am trying to extend the edges of a model created using photogrammetry in blender. The object is captured well, but the ground it sits on only extends a few feet from the object. I would like the ...
Tronic's user avatar
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2 answers
1k views

3D scan data: Which format(s) most relevant for import to Blender?

I am using a 3D scanning app that can export to the following formats: FBX - Supported by most 3D software and game engines OBJ - Text-based 3D model format GLB - Open 3D format for the web (binary ...
Mentalist's user avatar
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Gltf 2.0 file imported from Polycam has strange holes in texture, but only when connected to the emission socket

I photoscanned a hallway and imported it into blender. It looks fine at first but when I try to connect the diffuse texture to the emission socket, random patches of the of the mesh do not emit, and ...
supercriticalpotatohead's user avatar
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1 answer
62 views

Adding a basement to a photogrammetry

To add a basement to a photogrammetry, I tried the answer givent in this question : How to create a flat base to a photogrammetry model in Blender? But so far I am stuck after the step : Add a ...
Philippe Darcissac's user avatar
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physics : inflate a mesh until it reaches the limits of its container

I have a room scanned from a photogrammetry. I would like to grow a mesh (like a baloon inflating) inside this room until it reaches the room boundaries. The goal is to have a mesh that would be the &...
gordie's user avatar
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Why is my .FBX scene exporting with only one image texture applied to each mesh, when I have multiple?

I'm trying to export a scene from blender and use it in UE5, but the image textures are all wrong when I export it. I have a few image textures for each mesh, but it seems that only one is applied for ...
litleangle's user avatar
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93 views

How to remove surfaces smoothly

I am very new to blender and I use it for fine tuning my Photogrammetry. I scanned the shell below and I want to cut the lower rims evenly round. I can use teh Select Circle tool but when I zoom in I ...
dandan's user avatar
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Why the mesh is broken?

I imported a photogrammetry for rig it and animate it, but once I have the mesh it seems to be fractured, although is only one mesh. When I animate it folds in those fractures.What can I do?
Oapé's user avatar
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point cloud projection to image plane

I have a wide range of point cloud files and images in the same area(The photos are JPEG). So both of them involve geo-referencing, so I want to project the point cloud back to the camera plane and ...
RebeccaC's user avatar
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Constructing a rough 3D model from two "360 degree" panoramas taken inside a small enclosed room (an aircraft cockpit)? [duplicate]

The National Museum of the US Air Force provides spherical panoramas of the cockpits of many of their aircraft. I am especially interested in the ones of the cockpit of the XB-70 at http://www....
tml's user avatar
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2 answers
726 views

High Poly -> Low Poly Texture Bake Problem (UV seems to be ignored entirely)

I've been following this awesome tutorial (https://www.youtube.com/watch?v=-dc4KN2bdrw&ab_channel=BlenderBones) on converting photo scanned objects to usable, low poly objects. I've been able to ...
EthanP120's user avatar
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Projection mapping terrain from elevation angle photo

I am trying to recreate a riverbank [Note: not the fort/buildings]from an historic photograph: I'm having trouble finding a tutorial as the terms I'm using in my searches predominately bring up other ...
pr3sidentspence's user avatar
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Importing Agisoft Models Into Blender [duplicate]

I'm learning Blender and thought I would try importing some of the models I've created in Agisoft into Blender, however I'm running into an issue, nothing shows up. I'm exporting the models from ...
Vantooville's user avatar
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cleaning up glitched complex overlapping mesh architecture

I am relatively new to Blender (Rhino for now) and tried to collide multiple 3d photogrammetry models. In the end, I glitched it my resizing the meshes to create an unexpected architectural model. The ...
DaDar's user avatar
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Multiple photogrammetry models in one scene

hopefully this hasn't been asked before; I had this idea to have a scene in a Unity game project that I'm making where I would have multiple photogrammetry scanned models of objects, and animate them ...
ele's user avatar
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How do I improve the quality of imported OBJ objects and what blender processes or skills do I need to learn to fix them?

I'm learning how to create 3D models with drones. I have tried importing a 3d model obj from WebODM into blender, however once imported it loses a lot of the detail and it looks a mess. I have two ...
Aaron E's user avatar
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1 answer
748 views

How to import big mesh to Blender from photogrammetry

I want to import a mesh into Blender that I generated with Zephyr, but the mesh files became very large: wrl: 7.6GB obj: 9.5GB ply: 3.0GB I would like improve the mesh and the texture to make an ...
metty's user avatar
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How to create a negative space with a 3d model?

I have had some issues with cleaning up photogrammetry scans and ending up with the outside clean but lots of strange internal geometry that can be hard to get at and tidy up. I can always clean up ...
BEAM_BOT's user avatar
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How to find models in scene without changing origin point?

I have been doing some experiments with photogrammetry and i imported some models into Blender but I realized after I imported them all that I could not find my models. I rechecked my photogrammetry ...
BEAM_BOT's user avatar
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69 views

Strange unexpected elements when baking texture

Hello! I am baking a texture from a high-poly photogrammetry model to a low-poly and I get those strange beige spots. What am I doing wrong? (see my baking setting on the side) Thanks for your ...
Pyra_M's user avatar
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Modeling vs photogrammetry for 3d printing a mechanical part?

I want to automate my blinders with a motor. Image added for the motions required. I somehow need to make the "horn" that attaches the motor to the handle. Have been thinking of a few ...
Mr-Programs's user avatar
6 votes
1 answer
4k views

Textures black out after remesh?

I have photoscanned a fire hydrant and as all photoscanned objects are, its mesh is a total wreck. So I remeshed it using Quadriflow remesh. But after the remesh was complete, the new object was ...
Pro Effects MAX's user avatar
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122 views

Photogrammetry model turns matte black after adding modifiers after using sculpt tool

My Photogrammetry model turns matte black after I have been in sculpt mode and then try to add a Modifier (Remesh). I cannot get my texture back on my model once this has happened. This fault has ...
Signe Ungermand's user avatar
1 vote
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597 views

Texture comes out yellow, red, black and green on model

I am having some issues with my Blender version 2.82.7 that I simply do not understand. I am working with my photogrammetry model which has a perfectly fine UV map and disfuse map, however when I ...
Signe Ungermand's user avatar
3 votes
1 answer
882 views

How to create a flat base to a photogrammetry model in Blender?

I am trying to create something like this in Blender, but I don't know how exactly. I captured a model of a WWI bunker with photogrammetry and processed it with Agisoft Metashape but I like to add an ...
trigauts's user avatar
1 vote
0 answers
44 views

Edit and Prepare Models from Photogrammetry for Print using Blender

I created a photogrammetry rig and was able to generate a model using a program called 3D Zephyr. I can export it in .obj, .fbx, etc and open the model in Blender, but not much more than that. I'm ...
PiMan's user avatar
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3 votes
1 answer
683 views

3D model photogrammetry in blender software

I would like to know a 3D photogrammetry model is it more difficult to read in blender versus a normal or cartoon model ? I send screenshots of 3D photogrammetry model (if I'm not mistaken) and normal ...
Marckenson's user avatar
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2 answers
632 views

moving vertices along view axis between camera and vertex position

I do want to model something that i a have photographed in 2 different perspectives. So after modeling it looking through one camera, i do want to slide the vertices back and forth along the vector ...
Suforeman's user avatar
1 vote
0 answers
52 views

It's possible to create a 3D or 2.5D video/animtation using the alembic file from photogrammetry?

my interest is about how create fast renders with the images aligned by photogrammetry. I think it's appropiate to use the alembic file (*.abc) from a a photogrammetry software such as meshroom. I ...
Joancalad's user avatar
1 vote
0 answers
13 views

How to concurrently layer a second set of image data over a 3d mesh?

I am concurrently recording RGB and thermal data and I would like to map the thermal data along with the RGB data on to the 3d mesh after the model is rendered. Any advice?
Gareth S's user avatar
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1 answer
630 views

Blender Crashes when Baking High Resolution Textures "Circular Dependency" error

I have a high poly (1,3 Mio faces) photo scanned mesh with 17 generated 8k textures (totalling 500 MB) All the texture are looking something like this one here: My goal is to bake those 17 diffuse ...
Florian Ludewig's user avatar
2 votes
0 answers
1k views

Workflow for using A LOT of reference images at precise angles?

I am going to sculpt a human head based on a model whose image is captured at VERY precise angles for this purpose. I think the angles those images are taken at are increments of 11.25 degrees: {-45....
hatinacat2000's user avatar
1 vote
1 answer
790 views

How to decrease the number of tiny islands in Smart UV Project for photogrammetry models?

Smart UV project is making some pretty terrible UVs for my photogrammetry scans: Lots and lots of tiny islands. I already tried changing the smart UV project settings. I need margin at .1 so I can ...
SZidek's user avatar
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0 answers
357 views

combining photogrammetry and a model in blender

Where to start, i've run out of googling for the answers. I Scanned a dolls house, with the intention of recreating it perfectly. However, the scan has a few holes in the mesh, and has about 3 million ...
Penelope Saladfingers's user avatar
1 vote
0 answers
1k views

How to slow down camera movement?

I am trying to do photomatching in blender where I need to manually match the camera position to the object I'm modelling. My source image has really small focal length 13mm which makes the camera ...
user79164's user avatar
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2 votes
1 answer
3k views

mtl file after exporting comes without texture map (map_kd ...)

I am quite new to blender. I have retopologized a high poly model with texture and then bake the texture (all in cycles) to the new model in blender. When I export the obj file the mtl file comes ...
Javier's user avatar
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6 votes
1 answer
2k views

Photogrammetry retopology/projection like Zbrush

I am doing some photogrammetry scans using Agisoft Photoscan and importing the scans to Blender. The problem is that the UV maps are a mess, the meshes have too many polygons. The most common ...
Robin Bervini's user avatar
1 vote
1 answer
1k views

Is there a photogrammetry addon or setup that works similar to FaceBuilder addon for NUKE?

Is there an arrangement that allows similar pinning of a generic (initially) mirrored mesh/facemesh ? KeenTools FaceBuilder Demo 2018 I'm fairly sure Blender can come close to this with existing ...
t8ja's user avatar
  • 465
1 vote
0 answers
113 views

Normalize light fall off

I want to 3D scan an object, take pictures, determine the camera positions (using f-spy) and then texture paint (in stencil mode) the textures onto the object. Of course, the images taken have ...
Mike de Klerk's user avatar
1 vote
3 answers
4k views

from photo to 3d image

my question is, can you take a single photo en convert it to grayscale relief or 3d? for example i have a photo off my kids and i want to create a file so i can get a sort of 3d effect that i can ...
Frederik Martens's user avatar
2 votes
0 answers
119 views

Convert large number of cameras to vertices with normals

I'm using Agisoft Metashape to create 3D models for Blender and I want to render some images in Blender that also show where the photographs were taken, with a little camera object at each location. I ...
John McCarthy's user avatar
0 votes
1 answer
101 views

Using imported model created by photogrammetry as a reference to create other model

Would it be possible to have a transparent textured model created by using photogrammetry in the "background" to use as a reference while making a regular 3D model? What would be the best way to go ...
POM's user avatar
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0 votes
1 answer
748 views

Photogrammetry using blender to Create a Dense Mesh and automatically texture them

Photogrammetry is the basic requirements when you are working with rocks and other nature assets. I searched the whole internet in order to find out if there is any tool which can help me in that. To ...
user avatar
0 votes
1 answer
378 views

Make the edge of a model smoother

I have a mesh that resulted out of a photogrametrie and that I'm editing in blender. I'm trying to remove the scattered part of the edge at the end of the mesh so that the mesh has a smooth end (as ...
Norbert's user avatar
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2 votes
0 answers
330 views

Turning Point Cloud with vertex color and normal data into a Mesh using nodes?

Not quite sure if this is a too big of a question to answer using Sverchok, but I will ask anyway: if we have Point Cloud data, each point has Color info and Normal info, how hard it is to turn it ...
Blender Sushi Guy's user avatar