Don't dispose material of chunks optimization

Author: michaljaz

coffee/client/module/World/World.coffee

@@ -99,7 +99,7 @@ class World
 			for i of cellBlackList
 				if cellBlackList[i] is true
 					@cellMesh[i].geometry.dispose()
-					@cellMesh[i].material.dispose()
+					# @cellMesh[i].material.dispose()
 					@scene.remove @cellMesh[i]
 					@cellMesh[i]="disposed"
 			@renderer.renderLists.dispose()

coffee/client/module/index.coffee

@@ -152,7 +152,7 @@ class Game
 		}
 		color = new THREE.Color "#adc8ff"
 		near = 0.5*16
-		far = 3*16
+		far = 2.5*16
 		# scene.fog = new THREE.Fog color, near, far
 		gui.add( @params, 'fog' ).name( 'Enable fog' ).listen().onChange ()->
 			if _this.params.fog