Gamma Organizer

30 votes
Date Updated: 
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New  v1.33.00 Pro

This is script to change bitmap load gamma in whole scene or selected Bitmaps.
It can change gamma in all / selected bitmaps (now filtered by selected objects).

It helps to switch gamma in Normal Bump to prevent VRay render crash
( when merged models came with automatic gamma in Normal Map)

Normal Bump for VRay Render should be Override 1.0
VRay Normal Map -
recomended - Override 1.0
Corona Normal Bump - recomended - Automatic

Apply by
Object selection - All, Selected only
Bitmap type - AllNormal Bump, VRay Normal Bump or Corona Normal Bump only
Change All / Selected Custom input gamma works in max 2014 and up.

It is recomended to change gamma only for Basic Bitmap Image types:  ".bmp",".gif",".ifl",".jpg",".jpe",".jpeg",".png",".tga",".vda",".icb",".vst",".tif",".tiff"

New version has option to change gamma in other file types but without custom settings (exposure, layers etc in .psd .exr)
Please use it carefully !

Full version v1.32:

Here is coming new full version with Bitmaps Listener + real time update for Show selectied  (objects or materials).

It shows BitmapsTextures with Slots and Classes where they are located
I worked last months to make it fast and stable, Hope you like it :)

 v1.33.00 Pro
 - added support for:
    - VRay Bitmap (VRay 5)
    - RedShift RS_Bitmap
    - Octane RGB_Image
    - Arnold Image
 - added Settings to customize listview font and colors (dark and light theme
 - set VRayHDRI/VRayBitmap and Arnold Image Color Space moved to main UI
 - UI changes:
   - new custom controls (EditText, Spinner, ComboBox)
   - added arrow to show sorted column and sort order
   - changed columns style for darker theme
   - settings: added row height option (in addition to font height)

 v1.32 Pro
  - Filter by selected Objects or Materials (from material editors)
  - Change VRayHDRI Gamma
  - Save settings: location, size, filters

 v1.30 Pro
  - Bitmaps Listener
  - instance info
  - location info (Class, Slot, Name, Class above, Slot above, Name Above)
  - automatic filtering from selected objects
  - automatic filering by Bump Type
  - change gamma in selected only
  - sort list by column
  - comes with installation package and toolbar icon

Free version:
Install favorite scripts (just drag and drop to max window)
Add icon on toolbar or create shortcut
Create favorite scripts folder structure and copy Gamma Organizer there
More info about Favorite Scripts :

Free Lite vesion download available here:

Full Pro:
Gamma Organizer Pro (
Gamma Organizer Pro (

Let me know what you think. or if you have more suggestions ? Which slots should be on the list to override gamma ?

Version Requirement: 
3ds max 2014 and up.


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nnq2603's picture

Strange thing happened with path of bitmap (Lite version)?

Problem: I use this Gamma script for Populate people in 3ds max.

After I user Gamma Organizer (Lite) apply Override all selected bitmaps to 1, the paths were changed to local sub-folder in my PC. Before that I have all path (assets path) all set to server network shared folder.

If I run your Gamma script, get all the paths changed, I'd again set all changed path to network location. But after setpath, all bitmap input-gamma came back to Automatic. If I go a step further and apply override to 1 again, the path all change to local folder again... That's a loop, can't find work around this for render scene in backburner (wrong path make populate people display white without any texture).

So it's by design in Lite version or something wrong going on here?

nnq2603's picture

Thanks Pixamoon for Lite/free version of this tool

Gamma set override bitmaps works very well. Thanks a lot Pixamoon. Great works. More often than not, when I search for something, that script already wrote by Pixamoon. Quanity or scripts from your desk is high, so is the quality!

pilotchiao's picture

Why Cannot Download the free

Why Cannot Download the free lite version?

JCR2011's picture

Incredibly useful

Thanks, this is exactly what I needed!
Best wishes from Maine!

pixamoon's picture

Thanks :)

Still just learning but have much more ideas for new scripts/tools in my head :p and some old started but not finished yet...
Hope to find more time to work on them soon.

3dwannab's picture

Seen that earlier and never

Seen that earlier and never thought of using it. Thanks. How long have you been scripting? You are coming up with good scripts.

pixamoon's picture

try this

I think there is no need for it. Try my new Favorite Scripts:

Just copy file to your scripts structure and you can access by Favorites menu.


3dwannab's picture

thanks for the freebeee :)

Any chance we can get this as a macro to assign it to a quad, toolbar etc? Many thanks.

pixamoon's picture

normal map gamma

Thanks for this suggestion :)

I'll do second list for Map types.

Also, Bitmap Tracking / Resizing... will have that too + you will be able to see actual input gamma for every bitmap ans see where is is loaded.

Thanks again!

Any more suggestions ?

themaxxer's picture

nice script, but I have a

nice script, but I have a question. I only have to change the input gamma of the bitmap in a normalbumpmap when working in gamma 2.2. is this possible, I only see a bumpmap option...?
and maybe it would be great if you could implement the gamma change option also for colors too.

best regards

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