Questions tagged [point-clouds]
questions concerning the use of point clouds / data point sets in blender.
136 questions
0 votes
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27 views
Point cloud import - size limits?
I'm following a tutorial to import point clouds via PLY format and then use a Mesh to Points geometry node to make them render-able. This also has a step to pick up the vertex colors by using an ...
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0 answers
45 views
Converting points from an Alembic file to something usable in Unreal Engine 5
I am exporting an Alembic file with the points data of particles that I have exported whitewater out of LiquiGen. I'm import the ABC into Blend to try and convert it into something that UE5 can ...
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37 views
Converting Alembic points to geometry export issue
I am exporting an alembic file from LiquiGen. It has all of the point data for my particles. I can import the alembic into Blender. See image for the Geometry Node information. For some reason I can't ...
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42 views
How to color each instance in a collection on a Poisson Disc?
I'm trying to color items in a Collection distributed on a Poisson Disc. I want each instance to pick up the single color of the pixel directly beneath it and take on that single color over the full ...
- 1
1 vote
0 answers
82 views
Vector blur not working properly when rendering points?
I am trying to add "artificial" motion blur to a static object via manipulating the "velocity" attribute in geometry nodes. I've tried 4 cases (posted screenshots): mesh + motion ...
- 33
0 votes
1 answer
109 views
Geometry nodes : Use a 3d object as a mask to Distribute Points on Faces
I want to create a kind of holographic device, that fires light rays randomly on Suzanne faces. So I create a geometry nodes and Distribute Points on Faces of Suzanne. Suzanne can move and can go ...
- 362
0 votes
1 answer
51 views
Displacement of a point between two frames
Is there a way to store position of points of a curve of previous frame. I want to because I want to find how much are these points getting displaced between frames. I don't really want to use ...
- 3
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28 views
How to Convert Vertex Data into a Smooth, Textured Model? [duplicate]
Can someone help me turn these dots (vertices) from a .ply file into a smooth, usable model that connects the points and generates a clean, textured surface? Download .blend
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77 views
How to Access Alembic Point Cloud Attributes in Geometry Nodes?
After importing an Alembic point cloud into Blender, it seems impossible to retrieve its data, such as the scale or the age, through Geometry Nodes. Is it possible ?
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40 views
How can I change the vertex colours of a point cloud?
I have converted a *.e57 point cloud file to a ply file. Importing this in combination with geometry nodes I can visualize anf render the cloud with the original colours from the scan as they are ...
- 106
1 vote
2 answers
103 views
Geo Nodes: How can I find the Index of a point, having its Color (temporaly variable indexes)
I have a point cloud that reads a sequence of meshes over time. this causes an illusion of a particle system being animated. I can see the points 'moving' when I scrub the timeline because each point ...
1 vote
1 answer
30 views
Remove sections of a point cloud with Geometry Proximity or any other node setup and Animate IT
Remove sections of a point cloud with Geometry Proximity or any other node setup I have a question related to answer prowided by @AndreZmuda. I’ve successfully applied the workflow from @AndreZmuda ...
1 vote
1 answer
67 views
Instance on points based on matching attribute integer
I have imported two alembic files into Blender; geo.abc : static geometry points.abc : animated point cloud (5 points) The static geometry in this example is a sphere made from 5 chunks. All the ...
- 157
2 votes
1 answer
221 views
How to create a random cube of blocks with no overlaps?
Some time ago, I asked a question of this site and got some outstanding answers. The question was: How do I avoid this happening when I try to create a "wall" of different sized blocks with ...
- 124
2 votes
2 answers
196 views
Comparing Booleans on different points in a point cloud?
My question is simple but not so simple to solve, it seems. Below is a point cloud I created on a flat plane, with indexes 0-65, and IDs from -1 to 3 assigned to each point. Let's say I want to check ...
- 124