Display Triangle on Texture UVs

[Raildex]

Description

In the Mesh Viewer, we can inspect a mesh pre and post Vertex Shader.
It also neatly displays all attributes in a table.
I would like to have the ability to select vertices and have it's UVs displayed over a texture.

This would help debugging texture coordinates a lot.

Environment

• RenderDoc version: 1.29
• Operating System: Windows 11 x64
• Graphics API: D3D11

[baldurk]

This is something that I do not intend to support due to the difficulties in mapping a vertex attribute or output to the actual sampled UVs (as they're not guaranteed to be used unchanged) as well as the extra burden and complexity required in building a UI to map between a given element in the mesh viewer and a given texture since it's not guaranteed that there's only one texture or indeed one set of texture co-ordinates.

For this kind of case you can select the attribute and display it as position, to view the texture co-ordinates in UV space. This is still local to the mesh-viewer and doesn't display it overlayed on the texture but is more useful in visualising texture co-ordinates: