Blen2Relief - a WYSIWYG relief generator for Colobot: Gold Edition
This tutorial is made with assumption that user already have basic knowledge about Blender 3D. No Edit/Sculpt Mode tool is detailed here. If you have no experience with this program, please visit some Blender tutorials first.
Creating custom levels for Colobot isn't really complicated. All you need to do is create relief and scene files, which can be done with most basic tools, like Paint and Notepad. But the process isn't plain easy as well. You need to create your files, try to load them into game, apply fixes, reload the level, apply another fixes, reload level again, apply fixes [...], which requires constant jumping between your tools and the game, which might be energy draining work.
With that in mind, I've created a small tool, which allows you to generate a relief in Blender - a free 3D editor, where you can use all of its tools to easily create your relief and preview it without running the game. Behold - Blen2Relief.blend. It should work with any Blender release >= 2.8.
After you open the file, you'll see a small plane. This is your canvas, it's divided to 161x161 little squares, that acts as pixels on your final relief texture. You might either enter Edit Mode and move the squares by hand, or enter Sculpt Mode and create your terrain with it.
For your convenience, there are some auxiliary planes available in the menu on the right. Upper and Lower Limit shows you how high or low you can place the terrain. Sea level can be used to visualize desired water level, Misc might be used for any other purpose.
You've created your terrain, now it's time to export it to texture file. To do this, open Render Properties tab and locate the Bake button, as shown above. Press it. A small progress bar should be shown below.
Next step - switch to Texture Properties and locate the Save button.
If everything went good, your relief should be saved next to blen2relief.blend file. Now you can load it into game, open into 2D editor as a template to resources reliefs, or whatever you like.
In the future (Estimated time: soon™) I want to develop the tool into complete level generator, with generating resources and scene files, placing objects, lights, terrain textures and so on.
In case if something went wrong - contact me on TerranovaTeam official Discord server (same nickname as here)