public override void CreateMesh(VoxelPlanetChunk chunk, VoxelPlanetChunk[] neighborChunks)
{
var mesh = chunk.GetMesh();
var voxelSize = chunk.GetVoxelSize();
// generate mesh
for (var y = 0; y < VoxelPlanetChunk.Size; y++)
{
for (var x = 0; x < VoxelPlanetChunk.Size; x++)
{
for (var z = 0; z < VoxelPlanetChunk.Size; z++)
{
var voxel = chunk.GetVoxelUnsafe(x, y, z);
if (voxel == 0)
{
continue;
}
// build mesh
if (IsTransparent(chunk, x - 1, y, z))
{
BuildFace(new Vector3(x, y, z), Vector3.up, Vector3.forward, false, voxelSize, mesh.Positions, mesh.Triangles);
}
if (IsTransparent(chunk, x + 1, y, z))
{
BuildFace(new Vector3(x + 1, y, z), Vector3.up, Vector3.forward, true, voxelSize, mesh.Positions, mesh.Triangles);
}
if (IsTransparent(chunk, x, y - 1, z))
{
BuildFace(new Vector3(x, y, z), Vector3.forward, Vector3.right, false, voxelSize, mesh.Positions, mesh.Triangles);
}
if (IsTransparent(chunk, x, y + 1, z))
{
BuildFace(new Vector3(x, y + 1, z), Vector3.forward, Vector3.right, true, voxelSize, mesh.Positions, mesh.Triangles);
}
if (IsTransparent(chunk, x, y, z - 1))
{
BuildFace(new Vector3(x, y, z), Vector3.up, Vector3.right, true, voxelSize, mesh.Positions, mesh.Triangles);
}
if (IsTransparent(chunk, x, y, z + 1))
{
BuildFace(new Vector3(x, y, z + 1), Vector3.up, Vector3.right, false, voxelSize, mesh.Positions, mesh.Triangles);
}
}
}
}
}
// private
private static bool IsTransparent(VoxelPlanetChunk chunk, int x, int y, int z)
{
return(chunk.GetVoxel(x, y, z) == 0);
}
