Remove triangles of adjacent cubes which are not visible

[IAmNotHanni]

Is your feature request related to a problem?

We currently keep the triangles which are not visible because of adjacent cubes. If two cubes of type CubeType::SOLID are adjacent to each other, 2 * 2 = 4 triangles are never visible, but they are still being stored in the vertex buffer.

Description

We must remove those vertices which are never visible.

Alternatives

Keep the triangles, even if they are not visible, reducing rendering performance.

Affected Code

The octree code

Operating System

All operating systems