Generates a perspective projection matrix with the given field of view. This is primarily useful for generating projection matrices to be used with the still experiemental WebVR API.
mat4 frustum matrix will be written into
Object containing the following values: upDegrees, downDegrees, leftDegrees, rightDegrees
Near bound of the frustum
Far bound of the frustum
out
Generates a perspective projection matrix with the given field of view. This is primarily useful for generating projection matrices to be used with the still experiemental WebVR API.