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FPS camera with pitch and yaw

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bloeys
2022-10-01 01:43:01 +04:00
parent bd79f6e274
commit 62194c4cad
4 changed files with 106 additions and 47 deletions
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14
camera/camera.go
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@ -38,7 +38,7 @@ type Camera struct {
// Should be called whenever a camera parameter changes
func (c *Camera) Update() {
c.ViewMat = gglm.LookAt(&c.Pos, c.Pos.Clone().Add(&c.Forward), &c.WorldUp).Mat4
c.ViewMat = gglm.LookAtRH(&c.Pos, c.Pos.Clone().Add(&c.Forward), &c.WorldUp).Mat4
if c.Type == Type_Perspective {
c.ProjMat = *gglm.Perspective(c.Fov, c.AspectRatio, c.NearClip, c.FarClip)
@ -47,9 +47,15 @@ func (c *Camera) Update() {
}
}
func (c *Camera) LookAt(forward, worldUp *gglm.Vec3) {
c.Forward = *forward
c.WorldUp = *worldUp
// UpdateRotation calculates a new forward vector and then calls camera.Update()
func (c *Camera) UpdateRotation(pitch, yaw float32) {
dir := gglm.NewVec3(
gglm.Cos32(yaw)*gglm.Cos32(pitch),
gglm.Sin32(pitch),
gglm.Sin32(yaw)*gglm.Cos32(pitch),
)
c.Forward = *dir.Normalize()
c.Update()
}