Hi all, I was trying to use instanced buffergeometry to instance a pointcloud, but hasn’t really been successful, if you guys could give me some help. Basically I have an existing point cloud created using buffergeometry and Point: var geometry = new THREE.BufferGeometry(); geometry.setAttribute(…

Update fiddle: https://jsfiddle.net/h9fnx3sy/ You’ve tried to render a mesh instead of a point cloud :wink:

Any chance you could properly format the code in your post? It’s really hard to read.

Oops, sorry about that, should be good now

[image] lxiangyun93: I tried to use instanced buffer geometry but it didn’t work: What exactly goes wrong? Do you see any error messages or warnings? Sorry, this topic was overlooked. Do you mind sharing your code as a live example ? Or maybe as a github repo? I can then have a look at app an…

@Mugen87 I have just created examples, could you take a look? thanks a lot! without instancing: https://jsfiddle.net/08ysb1g4/ with instancing (not working): https://jsfiddle.net/vf29uc86/ I was basically trying to create the 2 exact copies of the point cloud with certain offset (-2000, 0, 0) an…

@Mugen87 Thanks a lot! it works like a charm now :slight_smile: A quick follow up question if you don’t mind: what it I would like to dynamically add new instance? I tried to reset the offset attribute, but it didn’t seem to work. I created an example here: https://jsfiddle.net/mprj6bvg/3/ where…

Hi! Maybe a better approach is to use a maximum value of instances you can have (approximately). In couple with .maxInstancedCount. Roughly, it will be something like that: https://jsfiddle.net/prisoner849/xfoLrnej/ var clickCounter = 0; var maxInstances = 10; ... sumDisplacement = new Float…

@prisoner849 Thanks a lot for your solution! it certainly works, but I’m a little concerned that would it be inefficient if the max count is large? say the max possible number of instance is 1000, but usually we only need 1-50. Maybe In this way GPU would always have to process 1000 instances causi…

[image] prisoner849: maxInstancedCount I am going through the code sample. I see 2 point clouds rendered. I guess that was the ask. But what if I want to render just one?

Instancing Point Cloud

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lxiangyun93 January 30, 2020, 8:20pm 6

Thanks a lot! I’ll prepare a JSFiddle example

Addon to create special / extended geometries

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Instancing Point Cloud

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