Mineways real-time rendering
“Mineways lets you export your creations from Minecraft: Java Edition, versions 1.17 and earlier, into 3D files you can use for making images, movies, or 3D prints.
Donations: Mineways is free and open source. If you like it, please consider giving to, say, GiveWell or your favorite charity. Your donation can significantly improve or even save someone else’s life.
Are you using a Bedrock Edition of Minecraft? You can convert your world so that Mineways can read it.”
Universal Minecraft Converter
“Move your Minecraft worlds between platforms with the most reliable world conversion software ever developed. Purchasing a timed license will give you access time to use the converter.”
Cinema 4D modelling software
Cinema 4D allows Minecraft players to render parts of their worlds to create wallpapers or fancy render images of their worlds. Some of the most iconic Minecraft wallpapers were made in this program, such as these below by polish creator MURSZTIN. The nostalgia is big here!
Warning! Expensive and advanced method. Not suitable for newbies.
World Edit client-side interface
World Edit CUI is a Forge mod that allows you to see your region selections in World Edit. And some other stuff too. Really useful when using complex commands, such as polygon tools! You can find the mod on Curse Forge.