Pixel Canvas Terrain Mod FAQ
10 questions players actually ask, answered.
How do I start making a custom world with this mod?
Create or find a grayscale heightmap image, then make a colored copy to designate biomes. Place both PNG files into your datapack's dimension configuration folder, create a new world with that datapack active, and the mod will generate terrain based on your images.
What image format do I need for my heightmap and biome map?
Both images must be saved as PNG files. The heightmap should be grayscale (brightness determines height), and the biome map should be 8-bit RGBA with solid colors and no blending between them.
Can I use heightmaps from online terrain databases?
Yes, many free heightmap archives exist online and work directly with this mod. Export or download a grayscale heightmap PNG, then follow the standard setup process to use it in your world.
Why aren't my biomes spawning where I painted them?
Make sure your biome map uses solid, unmixed colors with no gradients or anti-aliasing. If colors blend together, the mod may not recognize the biome boundaries—export your biome image as 8-bit RGBA without color smoothing.
Do villages and structures still generate on custom terrain?
Yes, the mod includes structure placement smoothing so villages, temples, and other generated buildings sit naturally on your custom landscape instead of floating or clipping into terrain.
Can I use this mod with biomes from other mods?
Yes, Pixel Canvas Terrain Mod works alongside custom biomes added by other mods when used inside custom dimensions, letting you paint those modded biomes onto your terrain.
How do I create underground cave biomes?
The mod supports dedicated subterranean map layers in your datapack configuration. Create separate cave biome maps and configure them in your dimension settings to generate custom cave biomes below the surface.
Will this mod affect my game performance?
Terrain generation from images is generally efficient, but very large or high-resolution maps may increase world load times. Start with reasonably-sized images and monitor performance if you experience lag during world creation.
What happens if my heightmap and biome map are different sizes?
The images should match in dimensions for consistent terrain generation. If they differ in size, the mod may scale or misalign the biome placement—keep both images the same pixel width and height.
Can I test my custom terrain without creating a full world?
No, you must create a new world with your datapack active to see how your heightmap and biome map generate in-game. Use the example datapacks included with the mod to test your setup quickly.