I appreciate if anyone can help to calculate directionalLight3D direction here.. waiting for response.
On May 14, 11:09 am, Aneesh Chopra <[email protected]> wrote: > Thanks wagster, > for your response and support. > and I confirm that your understanding it correct on my requirement. > In simple words, visually light should remain fixed no matter how and > where camera pointing. > so, I need to move the light.direction based on camera movement, so > end result should look like that light is coming from same direction > no matter how camera is placed. > it is like, binding light direction with camera position. > > I got the Camera direction using suggested call.. > and now trying to figure out the difference between camera direction > and the light direction, but with no success. > > I tried it as following: > //**************************************** > // initial light direction > dLight.direction = new Vector3D(-1500,-600,-1000); > > // in Enterframe event, before view.render() call, I am trying to > calculate and set the light direction > > var obj:Vector3D = Matrix3DUtils.getForward(camera.transform); > trace('obj:'+obj.x+', '+obj.y+', '+obj.z); > > dLight.direction = new Vector3D(-1500-obj.x,-600-obj.y,-1000-obj.z); > //**************************************** > > I would truly appreciate if you may lead further to resolve this > issue. > Thanks > > On May 13, 3:23 am, wagster <[email protected]> wrote: > > > > > > > > > I'm still figuring out this whole thing, but as far as I can tell you > > can get a vector describing the direction that any Object3D (like a > > camera) is facing by calling > > > Matrix3DUtils.getForward(object.transform); > > > That gives you the camera direction, you'll then need to transform > > that again with the difference between the camera direction and the > > light direction. > > > There may be an easier way. > > > On May 12, 10:08 pm, Aneesh Chopra <[email protected]> wrote: > > > > Hello Everyone, > > > > I have a Sphere, a DirectionalLight3D and hoverCamera3D > > > > DirectionalLight3D initial direction is set as: > > > myDLight.direction = new Vector3D(-1500,-600,-1000); > > > > on arrow keys, I am moving hoverCamera3d Using panAngle & tiltAngle > > > properties. > > > > Problem is light does not move with camera movement and > > > my requirement is to have light dropping from same direction no matter > > > of camera position. > > > > Please suggest how should I can sync Light direction with camera > > > movement using panAngle and tiltAngle > > > > Thanks
