gitlab.com/donomii/sceneCamera
Easy 3D camera management
SceneCamera manages the camera view for 3D applications, especially for Android and GLES applications. It provides the V in the GL trinity MVP.
GLES 2.0 removes all the convenience functions for working with 3D cameras, this library puts them back. It also supports headtracking (only tested on Android). You can send your Android events directly to the camera (with ProcessEvent), and SceneCam will handle all the details of maintaining a the correct View Matrix.
Typical use:
app.Main(func(a app.App) {
for e := range a.Events() {
sensor.Notify(a)
sc := sceneCamera.New()
sc.ProcessEvent(e)
view := sc.ViewMatrix()
glctx.UniformMatrix4fv(uniform_view, view[0:16])
The camera starts at position 0,0,0.5, looking at 0,0,0 (the origin). I.e. it is staring directly down the Z axis, in the negative direction
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