First you need to use the AI Image Generator of your choice. I'm personally using ComfyUI with Flux and the Game Dev Lora https://civitai.com/models/1593246/gamedev
I'm not gonna explain how to actually use it so check a Youtube Guide or something or use like Midjourney.

I created this Mushroom Tree for example:
Just make sure it doesnt have stuff in the background, so use prompts like "Simple Background".

After generating your image go to https://3d.hunyuan.tencent.com/ and use your Browsers built in Translator to translate it into your language. Click Login > Email and register with your email.

Since it has a 20 Generation Cap, i recommend using some throwaway email so you can just create a new account once you have reached the generation cap.

Next just throw in your generated image, click Generate now and wait until its finished.

Then click Download (Not shown in the screenshot, but they allow FBX export now. Select FBX on the Dropdown Menu next to Download)


Now just start Bakin and you should be able to drag the exported FBX file right into the Editor