math math.constants math.functions math.matrices math.order
math.vectors opengl opengl.capabilities opengl.gl
opengl.shaders opengl.textures opengl.textures.private
-sequences sequences.product specialized-arrays.float
+sequences sequences.product specialized-arrays
terrain.generation terrain.shaders ui ui.gadgets
ui.gadgets.worlds ui.pixel-formats game-worlds method-chains
math.affine-transforms noise ui.gestures combinators.short-circuit
destructors grid-meshes ;
+SPECIALIZED-ARRAY: float
IN: terrain
CONSTANT: FOV $[ 2.0 sqrt 1 + ]