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removed matrix code in backend

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This commit is contained in:
Thomas Friedel 2019-02-22 16:54:37 +01:00
parent 816582dbb3
commit ed34e3d8c4
1 changed files with 0 additions and 28 deletions
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28
backend/gogl/gogl.go
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@ -467,34 +467,6 @@ func (b *GoGLBackend) disableTextureRenderTarget() {
}
}
type mat [9]float64
func (m mat) invert() mat {
var identity float64 = 1.0 / (m[0]*m[4]*m[8] + m[3]*m[7]*m[2] + m[6]*m[1]*m[5] - m[6]*m[4]*m[2] - m[3]*m[1]*m[8] - m[0]*m[7]*m[5])
return mat{
(m[4]*m[8] - m[5]*m[7]) * identity,
(m[2]*m[7] - m[1]*m[8]) * identity,
(m[1]*m[5] - m[2]*m[4]) * identity,
(m[5]*m[6] - m[3]*m[8]) * identity,
(m[0]*m[8] - m[2]*m[6]) * identity,
(m[2]*m[3] - m[0]*m[5]) * identity,
(m[3]*m[7] - m[4]*m[6]) * identity,
(m[1]*m[6] - m[0]*m[7]) * identity,
(m[0]*m[4] - m[1]*m[3]) * identity}
}
func (m mat) f32() [9]float32 {
return [9]float32{
float32(m[0]), float32(m[1]), float32(m[2]),
float32(m[3]), float32(m[4]), float32(m[5]),
float32(m[6]), float32(m[7]), float32(m[8])}
}
func (m mat) mul(v vec) vec {
return vec{m[0]*v[0] + m[3]*v[1] + m[6], m[1]*v[0] + m[4]*v[1] + m[7]}
}
type vec [2]float64
func (v1 vec) sub(v2 vec) vec {