Help me make this MeshLibrary object programatically

Kequc

This is going to be challenging to figure out since there are no errors the mesh's just don't appear.

https://gist.github.com/Kequc/464e4a9acc1e1b229c380a17d5487b2f

Here is a little factory class I built. The purpose is just to make some simple shapes that you might see on SimCity2000 terrain. Slopes, peaks, flat areas. I plan to use this in a GridMap to build terrain.

Unfortunately the meshes are just invisible or not there.

I add a cell to the GridMap and in my scene there's nothing there when I run it. I've tried not setting the material (in case there's a problem there). I've tried reversing the order of my indices (in case surfaces were upside down). Maybe there is something wrong with the way I'm using ArrayMesh.

Hoping to get to the bottom of it asking here, if you see any obvious problems please let me know!

Kequc

I've solved the first problem, the vertices were inverted, to go clockwise I should be using -x values to indicate 'right' and positive x values to indicate 'left'

That's solved. I can use this code to apply a mesh directly onto a MeshInstance. But in the GridMap, it doesn't render. Does anyone know why?

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On further reflection it's better to think about x as north and z as east. That is just simpler everywhere across the board.

Kequc

The second problem was that the texture was too dark, incredibly this code does work after those two changes.

Kequc

The third problem was that I need to offset the mesh vertices so that they are centred in the cells. The fourth problem was that my meshes didn't have normals. The fifth problem was figuring out orthogonal y-rotation, which is that the cells in gridmaps are to be rotated as so.

[0, 16, 10, 22]

Kequc

Going x north and z east orthogonal y-rotation is more like [0, 22, 10, 16] but after a lot of playing around I've got islands rendering.

This one's very simple, three layers above ground two layers underground and sand. I got the thing working that this thread was about but there you go.

Next I'd probably work on painting the island, or tweaking some settings and so on.