How to activate the drawing brush in RBG?

Agent layout using Generators and Locators
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Vitual
Posts: 2
Joined: Thu Jul 02, 2026 8:31 am

Hello. I started to explore your program and encountered several difficulties at the entry point. I do not want to create separate topics; maybe I can describe some points here. When clicking Edit, the brush activates drawing mode, but when selecting a node and enabling the “brush” button, the brush cursor does not appear. I tried different settings, I see two .tif maps in the folder. There are also questions about other locators, but I will continue trying the settings. Thank you for a good program. Sometimes the documentation does not fully match what actually happens, but I think everything can be resolved.
massive
Site Admin
Posts: 24
Joined: Sat Apr 13, 2024 7:07 am

We're not entirely sure what you're doing here, but if you are attempting to use RGB placement here's how it works.

1a - Load a texture map with coloured areas for where you want the agents either from File > Load terrain map, or by selecting the terrain node in the scene page and browsing for the "map" file.

1b - If you don't already have a placement texture map then you can paint onto the terrain using the Paint tool. This is available from the menu: Edit > Paint. Set the desired colour using the RGB sliders, click on the "paint" button, and then paint on the terrain in the viewport.

2 - To place agents on a particular colour, open the Place tool: Edit > Place. Make sure the RGB Generator type is selected (the top right button in the Place tool). Then click the "add" button, then click on the coloured area of the terrain in the viewport.
Vitual
Posts: 2
Joined: Thu Jul 02, 2026 8:31 am

Dear administrator, thank you for your response. I recorded a short video, literally 30 seconds, where my brush does not work. Here is the link. It is safe - video on the Mega service.
https://mega.nz/file/lylWFBaL#0JwXL4t8d ... v-5plEQ5go
I hope you will help me figure it out.
massive
Site Admin
Posts: 24
Joined: Sat Apr 13, 2024 7:07 am

It looks like you are viewing the alpha channel of the terrain map. Go to the Terrain menu and switch off "Alpha channel". Then you will be able to paint on the terrain.
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