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TODO

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bloeys
2022-10-01 01:44:22 +04:00
parent 62194c4cad
commit 0da031aa57
1 changed files with 10 additions and 9 deletions
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19
main.go
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@ -195,19 +195,20 @@ func (g *OurGame) Init() {
} }
func vecRotByQuat(v *gglm.Vec3, q *gglm.Quat) *gglm.Vec3 { // @TODO: Add this to gglm
// func vecRotByQuat(v *gglm.Vec3, q *gglm.Quat) *gglm.Vec3 {
// Reference: https://gamedev.stackexchange.com/questions/28395/rotating-vector3-by-a-quaternion // // Reference: https://gamedev.stackexchange.com/questions/28395/rotating-vector3-by-a-quaternion
qVec := gglm.NewVec3(q.X(), q.Y(), q.Z()) // qVec := gglm.NewVec3(q.X(), q.Y(), q.Z())
rotatedVec := qVec.Clone().Scale(2 * gglm.DotVec3(v, qVec)) // rotatedVec := qVec.Clone().Scale(2 * gglm.DotVec3(v, qVec))
t1 := q.W()*q.W() - gglm.DotVec3(qVec, qVec) // t1 := q.W()*q.W() - gglm.DotVec3(qVec, qVec)
rotatedVec.Add(v.Clone().Scale(t1)) // rotatedVec.Add(v.Clone().Scale(t1))
rotatedVec.Add(gglm.Cross(qVec, v).Scale(2 * q.W())) // rotatedVec.Add(gglm.Cross(qVec, v).Scale(2 * q.W()))
return rotatedVec // return rotatedVec
} // }
func (g *OurGame) Update() { func (g *OurGame) Update() {