I am working with a Viewport3D in WPF (C#.Net), using Helix 3D toolkit as a helper (using SharpDX), and would like to add an image as a decal/texture to a 3D model that I have loaded in the viewport. I can load a model, but I cannot find any way to edit the model's texture/material.
I have searched for information on textures, materials, and UV mapping, but cannot find any information on how I can add/project an image onto the model's surface.
In the end, I'd like to be able to select a square region of the 3D model and "project" an image to the surface so that the 3D model can then be rotated/zoomed to inspect the overlay(s). Is there an easy way to do that?
3D view of part I'd like to add decal to: 3D view of part
3D model from here (used as example): https://www.artec3d.com/3d-models/fairing
Goal (manually added the image overlay): 3D view of part with desired overlay result
