Hi everyone I want understand the logic behind how we choice the value in this table ? [float] thanks

x,y,z,x,y,z,x,y,z Example, [image] Modify a position attribute Modifying a position attribute of a THREE.BufferGeometry

Just a small node: you’ll see not that much with this data, as the triangle is degenerated (two vertices have the same coordinates (0, 1, 0) :thinking:

I like to use the built-in three.js math classes to read from and write to typed arrays. THREE.Vector2 for an itemSize of 2 THREE.Vector3 for an itemSize of 3 THREE.Vector4 for an itemSize of 4 THREE.Color for colors, THREE.Euler and THREE.Quaternion for rotation. const _vec3 = new THREE.Vector…

Understand how we place the value

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hofk June 20, 2025, 3:13pm 4

These two very simple examples show you the meaning of the values.

BufferGeometryNonIndexed
BufferGeometryIndexed

rom the Collection of examples from discourse.threejs.org

Topic		Replies	Views
Updating index, position , uv attributes of a BufferGeometry Questions buffergeometry , custom-geometry	15	12022	December 8, 2017
How to set values for BufferAttribute? Documentation examples produce TS errors Questions geometry	2	1561	April 10, 2023
Getting Vertices' positions and changing their position Questions buffergeometry	3	5059	March 25, 2021
Send an attribute in the shader using addAttribute Questions shaders , buffergeometry	3	2895	June 18, 2018
Setting attributes.position to a rounded number Questions bufferattributes	5	1022	May 3, 2023

Understand how we place the value

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