I am newbie to 3D programming, I did started to explore the 3D world from WebGL with Three.JS.
I want to predetermine object size while I change the camera.position.z and object's "Z" position.
For example: i have a cube mesh at size of 100x100x100.
cube = new THREE.Mesh( new THREE.CubeGeometry(100, 100, 100, 1,1,1, materials), new THREE.MeshFaceMaterial() );
and cam with aspect ratio of 1.8311874
camera = new THREE.PerspectiveCamera( 45, aspect_ratio, 1, 30000 );
I want to know size (2D width & height) of that cube object on screen when,
camera.position.z = 750; cube.position.z = 500;
Is there is any way to find it/predetermine it?</div