public void SetCamWithBox(Vector3 min, Vector3 max)
{
GLCamera cam = CurrentViewport.Camera;
//Get the position of the midpoint of the bounding box plane closer to the camera
Vector3 frontMidPt = new Vector3((max._x + min._x) / 2.0f, (max._y + min._y) / 2.0f, max._z);
float tan = (float)Math.Tan(cam.VerticalFieldOfView / 2.0f * Maths._deg2radf), distX = 0, distY = 0;
//The tangent value would only be 0 if the FOV was 0,
//meaning nothing would be visible anyway
if (tan != 0)
{
//Calculate lengths
Vector3 extents = max - min;
Vector3 halfExtents = extents / 2.0f;
if (halfExtents._y != 0.0f)
{
float ratio = halfExtents._x / halfExtents._y;
distY = halfExtents._y / tan; //The camera's distance from the model's midpoint in respect to Y
distX = distY * ratio;
}
}
cam.Reset();
cam.Translate(frontMidPt._x, frontMidPt._y, Maths.Max(distX, distY, max._z) + 2.0f);
Invalidate();
}
// Button Handlers
private void OnResetCameraButtonClick(object sender, EventArgs e)
{
camera.Reset();
renderer.Reset();
// Redraw.
glControlMain.Invalidate();
}
public void SetCamera(ModelPanelViewport v, float frame, bool retainAspect)
{
ViewportProjection proj = (ViewportProjection)(int)ProjectionType;
if (v.ViewType != proj)
{
v.SetProjectionType(proj);
}
GLCamera cam = v.Camera;
CameraAnimationFrame f = GetAnimFrame(frame);
cam.Reset();
cam.Translate(f.Pos);
Vector3 rotate = f.GetRotation(Type);
cam.Rotate(rotate);
float aspect = retainAspect ? cam.Aspect : f.Aspect;
cam.SetProjectionParams(aspect, f.FovY, f.FarZ, f.NearZ);
}