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GitHub - technohippy/go-glmatrix: go-glmatrix is a golang version of glMatrix, which is "designed to perform vector and matrix operations stupidly fast".
go-glmatrix is a golang version of glMatrix, which is "designed to perform vector and matrix operations stupidly fast". - technohippy/go-glmatrix
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GitHub - technohippy/go-glmatrix: go-glmatrix is a golang version of glMatrix, which is "designed to perform vector and matrix operations stupidly fast".

GitHub - technohippy/go-glmatrix: go-glmatrix is a golang version of glMatrix, which is "designed to perform vector and matrix operations stupidly fast".

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go-glmatrix

go-glmatrix is a golang version of glMatrix, which is ``designed to perform vector and matrix operations stupidly fast''.

Usage

package main

import (
	"fmt"
	glm "github.com/technohippy/go-glmatrix"
)

func main() {
	// config
	rotateQuat := glm.QuatFromValues(1, 2, 3, 4)
	translateVec3 := glm.Vec3FromValues(1, 2, 3)
	scale := []float64{4, 5, 6}
	rotateOrigin := []float64{7, 8, 9}

	// construct matrix
	transMat := glm.Mat4Create()
	glm.Mat4Identity(transMat)
	glm.Mat4Translate(transMat, transMat, translateVec3)
	glm.Mat4Translate(transMat, transMat, rotateOrigin)
	rotateMat := glm.Mat4Create()
	rotateMat = glm.Mat4FromQuat(rotateMat, rotateQuat)
	matrix := glm.Mat4Multiply(glm.Mat4Create(), transMat, rotateMat)
	glm.Mat4Scale(matrix, matrix, scale)
	negativeOrigin := glm.Vec3Negate(glm.Vec3Create(), rotateOrigin)
	glm.Mat4Translate(matrix, matrix, negativeOrigin)

	// transform position
	position := glm.Vec3FromValues(10, 20, 30)
	glm.Vec3TransformMat4(position, position, matrix)
	fmt.Printf(glm.Vec3Str(position)) // => vec3(1280, -290, -42)
}

Document

License

MIT

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