Javascript Matrix and Vector library for High Performance WebGL apps.
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Questions tagged [gl-matrix]
40 questions
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How to understand/use gl-matrix function fromRotationTranslationScale()
I have a cube in GL in this plunkr that looks like this:
I would like to scale, rotate and translate the cube from a pivot.
to hopefully make it animate like https://www.youtube.com/watch?v=sZeBm8EM3mw&feature=youtu.be
For this transformation I'll…
Armeen Moon
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how to convert world space transform to object space transform?
i'm trying to implement :
transform.InverseTransformPoint(Vector3)
and
transform.InverseTransformDirection(Vector3)
using glm library in opengl.
i have view ,projection ,model matrices for each object.
actually i don't know what i must to do with…
masoud khanlo
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webgl rotate texture on the face of cube does not rotate around itself
i need help with webgl.
i draw a simple cube and apply texture on each face of cube,and i am rotating the texture on the each face of the cube but the problem is:
the texture does not rotate around itself it rotate's around left bottom corner of the…
sam
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How to calculate difference between two spatial rotations
I'm trying to convert physical orientation of a mobile device got from deviceorientation event to a series of camera rotations in my sort of 3D viewer. The problem is that I need to do spatial rotation relative to the first orientation taken from…
hindmost
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Multiplying not working with with gl-matrix.js's function mat4.multiply
I want to multiply 2 matrices with the gl-matrix.js library gl matrix mat4
The multiplication does work f.e. this :
var testMat = mat4.create();
mat4.multiply(testMat, this._transformations[0].transformation,…
greedsin
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How can I use GLMatrix to do matrix multiplications?
I'm just beginning to try to find/use a matrix operations library for JS. I want to do simple translation, scale, and rotation operations on 2D matrices. The mozilla developer website recommends GLMatrix for its "focus on speed and performance." …
user2441511
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Adding a Property to the Top-level Object in a Node Module
In a node.js module a variable declaration stays private inside the module:
var a = 'x';
Let's say, I want to declare a number of variables in this manner. I cannot use the following code, because like this the variables become really global and…
Anton Harald
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Quaternion rotation by phi and theta instead of xyz in gl-matrix
gl-matrix's quaternion object has 3 functions rotateX, rotateY and rotateZ which rotates quaternion by the specific axis.
Now I want to do the same using phi and theta instead of xyz.
How is this possible ? Is it possible to extract some value then…
Mohebifar
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distance/magnitude between quaternions, but ignore roll
I'm searching for a way to determine if a camera (a) is looking at the same direction than a specific object (b).
I'm only working with the rotations because here we don't care about the positions (so we can consider both are located at the…
Sebastien C.
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How am I supposed to use glMatrix 2.3.2 in a HTML project?
I am doing a HTML/Javascript project and part of it involves using glMatrix. My problem is that I have no idea how it actually implement it and use it.
I tried doing what you'd usually do to use a Javascript file in a HTML page:
Galbenshire
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