check scene for lights

Submitted by Saij on Sat, 2013-01-12 07:44

Hi all,

I am writing a script that will do this:

1. Check if there are lights in the scene.

2. If there are no lights, create 3 point lighting and then link it to a point helper object.

3. But if there are lights in the scene, don't create new lights, select the lights and pass it into an empty array.

The problems I am having are that I can't seem to get the script to check the scene for lights.

Cheers
/Saij

Here is my code:

(
sLights = #()

if sLights.count != 0

then append sLights (for l in lights where ClassOf l != light collect l) else

fn lightCreate = --Ligh Creator

(

local alignObj = Point pos:[0,0,0] size:25 box:true cross:false Name:"AlignObj"

local keyLight = TargetDirectionallight name:(uniqueName"KeyLight") rgb:(color 255 255 255) shadowColor:(color 0 0 0) multiplier:1 pos:[600,-540,540] isSelected:on target:(Targetobject transform:(matrix3 [1,0,0] [0,1,0] [0,0,1] [0,0,0]))

local fillLight = targetSpot name:(uniqueName "FillLight_" rgb:(color 255 255 255) multiplier:0.5 pos:[-890,-630,410] isSelected:on target:(Targetobject transform:(matrix3 [1,0,0] [0,1,0] [0,0,1] [0,0,0]))

local rimLight = targetSpot name:(uniqueName "RimLight_") rgb:(color 255 255 255) multiplier:0.3 pos:[-100,890,70] isSelected:on target:(Targetobject transform:(matrix3 [1,0,0] [0,1,0] [0,0,1] [0,0,0]))

lightArray = (for l in lights where ClassOf l != light collect l)

lightArray.parent = alignObj

)

append sLights (lightCreate())

)

General Scripting

Comments

Submitted by Saij on Sat, 2013-01-12 16:29.

Thanks guys

Thanks guys,

I am save yet again, thanks so much.

Cheers
/saij

Submitted by barigazy on Sat, 2013-01-12 11:51.

Yep, you are right. That is

Yep, you are right. That is better solution for sure.
I convert lights collection to array because Saij
mentioned in #3 question. But no need to select lights to create array.

bga

Submitted by Anubis on Sat, 2013-01-12 16:50.

no prob ;)

my tips was written to Saij.

my recent MAXScripts RSS (archive here)

Submitted by Anubis on Sat, 2013-01-12 11:16.

Yes, Lights is builtin dynamic collection

You can convert that collection to Array using As operator, but if that's the whole script, I not see a reason to do that. Also I see that you'll link your lights to a Point helper in both cases, so why not to create that Point and then if no lights (lights.count == 0) create only new lights with your function, and finally link them, i.e. something like this:

--create the point helper
pHolder = Point pos:[0,0,0] --...
--if no lights, create new
if lights.count == 0 do createLigths()
--link them
lights.parent = pHolder

my recent MAXScripts RSS (archive here)

Submitted by barigazy on Sat, 2013-01-12 08:21.

one more example

you can also use point helper as target object

if (lightsArr = lights as array).count != 0 then lightsArr else ( local dm = Point(), lightsArr = #() for i = 1 to 3 do ( in dm (lgt = mr_Sky_Portal light_Width:30 light_length:30 pos:[random -100 100,random -100 100,random -100 100]) append lightsArr lgt ) lightsArr.target = dm ; lightsArr )

bga

Submitted by barigazy on Sat, 2013-01-12 08:08.

try this one

if (lightsArr = lights as array).count != 0 then lightsArr else ( local dm = Dummy(), lightsArr = #() for i = 1 to 3 do ( in dm (lgt = Omnilight pos:[random -100 100,random -100 100,random -100 100]) append lightsArr lgt ) lightsArr )

bga

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