关于清除丢失贴图与IES文件

fn YY_clrmessingmaps =
(
    YY_messingmap = #()
    allBitmaps = getClassInstances BitmapTexture  -- 所有材质
for m= to allBitmaps.count do
(
    if not doesfileexist allBitmaps[m].filename do append YY_messingmap m
    ) -- 收集丢失贴图
    if YY_messingmap.count !=  do
        for c in YY_messingmap do
        (
            allBitmaps[c].filename = ""
            );  -- 清除丢失贴图

    YY_messingIES = #()
    all_light = getClassInstances Target_Light + getClassInstances Free_Light  -- 所有灯光
for l= to all_light.count do
(
    if not doesfileexist all_light[l].webFile do append YY_messingIES l
    ) -- 收集丢失IES
    if YY_messingIES.count !=  do
        for w in YY_messingIES do
        (
            all_light[w].webFile = ""
            ) -- 清除丢失IES
    )-- 清除丢失贴图与IES