This experiment is a simple comparison between both Depth based diffusion pipelines. The older, pretty robust ControlNet Depth with Stable Diffusion 1.5 and the integrated Flux Depth pipeline.
For ComfyUI you can use this pretty simple workflow that estimates depth from any image and involves that information the diffusion process.

DOWNLOAD WORKFLOW: depth2img_controlnet_sd15
Sculpting to Image

smooth metallic iridescent object, white background
translucent smooth dried out jelly object, white background
Sculpting a Scene

realistic sharp photography of organic objects made from blue translucent jelly mycelium material, fine voronoi shaped surface, small black spheres in the center of each object, white background