Capturing the view from a second camera

Question

hello;
if I add a new camera to my world how do I capture what it
sees;
thanks
dsdsdsdsd

Answer 1

Here's a behavior that you can drop on an empty 3D sprite. It
creates a cube in front of the main camera and a sphere behind. It
creats a second 'rear-view mirrir" camera to look backwards, and
display the sphere.
on beginSprite(me)
tSprite = sprite(me.spriteNum)
tMember = tSprite.member
tMember.resetWorld()
tCamera = tMember.newCamera("Rear-view mirror")
-- Add to the list of cameras for the sprite
tSprite.addCamera(tCamera, 2)
-- Give the insert a different background color
tCamera.colorBuffer.clearValue = rgb(51, 51, 51)
-- Place insert at center of top of sprite
tCamera.rect = rect(80, 10, 240, 50)
-- Move this camera with the main camera...
tSprite.camera.addChild(tCamera, #preserveParent)
tCamera.rotate(0, 180, 0) -- ... but facing in the reverse
direction
-- Create a model in front of the main camera...
tResource = tMember.newModelResource("Box", #box)
tModel = tMember.newModel("Box", tResource) -- at center of
world
-- ... and another model behind the main camera
tResource = tMember.newModelResource("Sphere", #sphere)
tModel = tMember.newModel("Sphere", tResource)
tModel.worldPosition = vector(0, 0, 500)
end
Is this the sort of thing that you are trying to do?
To create the effect of a mirror, you should place the mirror
camera at the position where the main camera would appear reflected
in the mirror. You should also change the mirror camera's
projectionAngle depending on the distance the main camera is from
the mirror: the closer it is to the mirror, the wider the angle
should be, so that the camera frustrum includes all the objects
that the main camera would see in the mirror.
An interesting project.