philippemorier / talus Goto Github PK

mesh.isInFrustum();
mesh.isCompletelyInFrustum();
camera.isInFrustum(mesh)
scene.pickWithRay(ray)

// Triangle traversal strategies/orders:
// - backtrack, zig-zag, Hilbert/Morton curves (locality maximizing)

• https://www.cs.cmu.edu/afs/cs/academic/class/15462-s16/www/lec_slides/2.pdf
• http://fileadmin.cs.lth.se/cs/Education/EDAN35/lectures/L2-rasterization.pdf

Maybe use MeshBuilder.CreateBox() with box.createInstance() and

ibox.edgesColor = new Color4(1, 0, 1, 0.1);
ibox.edgesWidth = 10;
ibox.enableEdgesRendering(0.5);

to draw the temporary line.
Use color of voxel in grid for temporary boxes but apply edge-rendering. Use color of voxel to avoid z-fighting/stitching.

When you start a line, select a start point, but then never finish the line, the line start voxel is not added to the undo stack but remains visible.

Steps to reproduce (tested with v0.0.5):

1. With the + Set Voxel tool, create something like a long that looks like a 4x1x1 rectangle
2. Choose the Line tool and set the start voxel. The start voxel of the line becomes visible
3. Point the mouse at some other voxel to see how the line would look like, but don't click any voxel so that the line "preview" doesn't finish
4. Then select the + Set Voxel tool again. Note that the "preview" of the line is still lingering around
5. Use Edit → Undo. It does not undo the line: the starting point from step 2 and the "preview" line from step 4 aren't undone. Instead it directly undoes the last voxel from step 1.

Expected: probably the start voxel (from 2.) and "preview" line (from 3.) should disappear if the line tool is deselected without drawing an end voxel of the line.