Add support for mesh vertex colors #1671
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emilk
added
🐍 Python API
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Awesome! Thank you so much for going the extra mile to add all these robustness & error handling improvements, as well as the splitting up of the vertex buffer. Loving all of it!
Haven't found any substantial errors/todos, most comments are "conversational" ;)
This thing is at least worth a dev-pulse post, if not more :).
Haven't run it yet, will do so tomorrow and then check what's up with the color interpolation on the triangle as discussed at the office (the color gradient seems to be a bit off, might be something about the perspective interpolation though).
| @@ -243,13 +240,19 @@ fn import_mesh( | |||
| anyhow::bail!("empty mesh"); | |||
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Really should get rid of all anyhow errors in all of re_renderer. One of the many things I never seem to get to :/
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I found that copilot was really good at writing thiserror enums, so just do it
| let vb_colors_start = vb_positions_size; | ||
| let vb_normals_start = vb_colors_start + vb_color_size; | ||
| let vb_texcoord_start = vb_normals_start + vb_normals_size; |
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[not actionable] I wonder if staging_buffer.extend_from_slice should return these ranges as a convenience feature. What do you think? Helpful or too weird for an extend_from_slice method? It's technically also different buffer ofc.
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This is tedious and error prone, so some helper would be nice
| #[error("Invalid mesh given as input")] | ||
| InvalidMesh(#[from] crate::mesh::MeshError), |
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The other errors are all about resource managers in general, so this should go to the mesh manager specifically.
However, the abstracted resource manager idea broke down quite a bit - e.g. I think I'll soon remove the "temp vs permanent resource" distinction; this didn't play out as I originally envisioned. So I'm ok if we punt on this :)
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| fn slice_from_np_array<'a, T: numpy::Element, D: numpy::ndarray::Dimension>( |
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How did we manage without this so far Oo
Co-authored-by: Andreas Reich <andreas@rerun.io>
Works with
rr.log_meshand with any vertex colors found n GLB/GLTF or OBJ files.Test:
just py-build && examples/python/api_demo/main.py --demo raw_meshChecklist