# How to set size of near clip plane

I would like to have a larger near clip plane on my camera than is the default to achieve a “more orthographic” look.

I suspect the answer will involve some matrix math, but I’m painfully ignorant about how to approach the problem. Any help would be much appreciated!

• I found this code online to calculate the projection matrix, but I don’t see anything in this formula about the size / shape of the near clip plane relative to the far clip plane…

var x = (2.0 * near) / (right - left);
var y = (2.0 * near) / (top - bottom);
var a = (right + left) / (right - left);
var b = (top + bottom) / (top - bottom);
var c = -(far + near) / (far - near);
var d = -(2.0 * far * near) / (far - near);
var e = -1.0;

var m : Matrix4x4;
m[0,0] = x; m[0,1] = 0.0; m[0,2] = a; m[0,3] = 0.0;
m[1,0] = 0.0; m[1,1] = y; m[1,2] = b; m[1,3] = 0.0;
m[2,0] = 0.0; m[2,1] = 0.0; m[2,2] = c; m[2,3] = d;
m[3,0] = 0.0; m[3,1] = 0.0; m[3,2] = e; m[3,3] = 0.0;
return m;

Thanks!

The way I solved this issue was by creating a script that interpolated between an orthographic matrix and a perspective one - based off of this script: