Bitmap editor from within Rhino

When I call up the bitmap editor in Rhino it opens paint. Where do I change that choice. e.g to Photoshop or Corel etc.

I assume:

Thanks, but that didn’t work for me. I want to use Corel PhotoPaint.
I entered C:\Program Files\Corel\CorelDRAW Graphics Suite X7\Programs64\CorelPP.exe. If I chose “Set as default” the path disappears. If I enter it an just click ok. It stays listed in the Rhino settings but Rhino still defaults to MS Paint.

your path contains spaces, try using quotes.

btw how can I invoke such bitmap editor, I don’t use such commands, so I can test it and try to figure out what’s wrong

When you double click a *.bmp file what software starts?
Another possiblity is that simply in windows it is set .bmp to be opened with paint and that’s why it is opening paint.

But the image you posted shows a space between Program and files? But you are right is might be something in how I entered the path.
I call up the editor in the Materials dialogues.

I used Windows 10’s “Copy Path” to get the correct syntax. Still no go.

when I click that it asks me about a software to edit the image with.

As I expected it’s windows associated program with .jpg (in your case)

go to Photoshop and its options/settings, find file association setting and make sure you allow Photoshop to associate JPG, PNG, BMP or whatever images you use as textures.

Another option is just to go to Windows Explorer. Find the texture file, right click Properties, and there you can also pick program to associate that file with.


I’ve never got that dialogue in rhino. Also, changing the file association changes it for all programs. Not something I want to do. I have a simple viewer associated with my image types. I want that to open when I double click images. However, I’d like Rhino to link the bitmap editor to Corel PhotoPaint. In several other software packages, that is exactly how that button works. It is a link to open Corel, but the file association stays as specified in windows.

I am currently in a Rhino class and am having no end of problems with materials/application in Rhino 6. The instructor is stymied also. I will put together a complete list and post soon.

There is no real good way to change what editor is used on the edit command for images. This is by default for Windows set to MS Paint.

I have used with success to change what editor is used when using the edit command (right-click on image in windows explorer, choose edit from the context menu). I have my Windows setup to use GIMP for that edit, so my Rhino opens images in GIMP when clicking the pencil.

It would probably be nicer if one could just set somewhere in Rhino what program to use.

@ivelin.peychev if I am not mistaken the advanced setting Toolbars.BitmapEditor is for editing the icon images of toolbars.

Yeah, I don’t know, maybe someone should remove the Advanced section all together. It is just confusing. I became used to use it in Rhino4. I guess it’s time to break that habit.

@CalypsoArt, check this post. I guess MS screwed up yet again in Win10 by removing the option to make Open and Edit separate software, but you still can do it using RegEdit. I never used the software @jesterking suggested, but I’ll try it.

I tried the regedit way, but that didn’t work. The default programs editor however did work.

in Windows 7, this works for sure, just did it:

  1. go to HKEY_CLASSES_ROOT\SystemFileAssociations\image\shell\edit\command in registry editor
  2. paste your programme path in Default key, make sure you paste it correctly:

“your programme here” “%1”

mine was:

“C:\Program Files\Adobe\Adobe Photoshop CC 2018\Photoshop.exe” “%1”

keep the " " where they appear.


This worked.