void Start()
{
this.instances = new GPUMesh[this.N];
this.paths = new Path[this.N];
// Initialize GPU Instancer
this.m = new MeshInstancer();
this.m.Initialize(pathCount: 4);
this.p = new PathArrayHelper(this.m);
// Add all mesh types to GPU Instancer
foreach (var a in this.asteroids)
{
this.m.AddGPUMeshType(a);
}
// Do stuff
for (int i = 0; i < N; i++)
{
var mesh = asteroids[Random.Range(0, asteroids.Count)].MeshTypes[0];
instances[i] = new GPUMesh(mesh, this.m);
var size = Random.Range(1f, ScaleRange);
instances[i].mesh.scale = Vector3.one * size;
instances[i].SetRadius(4f * size); // set large enough radius so model doesnt get culled to early
instances[i].Initialize();
var path = GetNewPath(); // create new path
instances[i].mesh.SetPath(path, this.m); // assign path to instance
paths[i] = path;
instances[i].Update();
}
}
public void BuildMesh()
{
Mesh?.Dispose();
// Create mesh vertices
var vertices = BuildMeshVertices();
if (vertices.Count == 0)
{
Mesh = null;
return;
}
// Create program-side mesh
var mesh = new Mesh <BasicMeshVertex>($"{nameof(World)} program-side mesh", vertices, MeshPrimitiveType.Triangles, false);
// Create GPU-side mesh from program-side mesh
Mesh = new GPUMesh <BasicMeshVertex>(mesh, ShaderProgram);
}
// Mesh generation
private void BuildMesh(Vector2 <float> size)
{
// Create a box
var box = new Mesh <BasicMeshVertex>(
"City",
new BasicMeshVertex[] {
new BasicMeshVertex {
Position = new Vector3 <float>(size / -2f, 0f),
Normal = new Vector3 <float>(0f, 0f, 1f),
TexCoord = new Vector2 <float>(0f, 0f)
},
new BasicMeshVertex {
Position = new Vector3 <float>(size / new Vector2 <float>(2f, -2f), 0f),
Normal = new Vector3 <float>(0f, 0f, 1f),
TexCoord = new Vector2 <float>(1f, 0f)
},
new BasicMeshVertex {
Position = new Vector3 <float>(size / 2f, 0f),
Normal = new Vector3 <float>(0f, 0f, 1f),
TexCoord = new Vector2 <float>(0f, 1f)
},
new BasicMeshVertex {
Position = new Vector3 <float>(size / new Vector2 <float>(-2f, 2f), 0f),
Normal = new Vector3 <float>(0f, 0f, 1f),
TexCoord = new Vector2 <float>(1f, 1f)
}
},
new int[] {
0, 1, 2,
2, 3, 0
},
MeshPrimitiveType.Triangles
);
// Make a GPUMesh
Mesh = new GPUMesh <BasicMeshVertex>(box, ShaderProgram);
}
public void Init()
{
voxels = new GPUVoxelData(resolution, size);
gpuMesh = new GPUMesh(voxels.Volume * 5);
}
public EditorCursor(Region region, Vector3 <decimal> position)
: base(region, position)
{
MeshRenderer = new MeshRenderer <BasicMeshVertex>($"{nameof(EditorCursor)}.{nameof(MeshRenderer)}");
var vertices = new BasicMeshVertex[]
{
// x-
new BasicMeshVertex
{
Position = new Vector3 <float>(0f, 1f, 1f),
Normal = new Vector3 <float>(-1f, 0f, 0f),
TexCoord = new Vector2 <float>(1f, 0f)
},
new BasicMeshVertex
{
Position = new Vector3 <float>(0f, 0f, 1f),
Normal = new Vector3 <float>(-1f, 0f, 0f),
TexCoord = new Vector2 <float>(0f, 0f)
},
new BasicMeshVertex
{
Position = new Vector3 <float>(0f, 0f, 0f),
Normal = new Vector3 <float>(-1f, 0f, 0f),
TexCoord = new Vector2 <float>(0f, 1f)
},
new BasicMeshVertex
{
Position = new Vector3 <float>(0f, 1f, 1f),
Normal = new Vector3 <float>(-1f, 0f, 0f),
TexCoord = new Vector2 <float>(1f, 0f)
},
new BasicMeshVertex
{
Position = new Vector3 <float>(0f, 0f, 0f),
Normal = new Vector3 <float>(-1f, 0f, 0f),
TexCoord = new Vector2 <float>(0f, 1f)
},
new BasicMeshVertex
{
Position = new Vector3 <float>(0f, 1f, 0f),
Normal = new Vector3 <float>(-1f, 0f, 0f),
TexCoord = new Vector2 <float>(1f, 1f)
},
// x+
new BasicMeshVertex
{
Position = new Vector3 <float>(1f, 0f, 1f),
Normal = new Vector3 <float>(1f, 0f, 0f),
TexCoord = new Vector2 <float>(1f, 0f)
},
new BasicMeshVertex
{
Position = new Vector3 <float>(1f, 1f, 1f),
Normal = new Vector3 <float>(1f, 0f, 0f),
TexCoord = new Vector2 <float>(0f, 0f)
},
new BasicMeshVertex
{
Position = new Vector3 <float>(1f, 1f, 0f),
Normal = new Vector3 <float>(1f, 0f, 0f),
TexCoord = new Vector2 <float>(0f, 1f)
},
new BasicMeshVertex
{
Position = new Vector3 <float>(1f, 0f, 1f),
Normal = new Vector3 <float>(1f, 0f, 0f),
TexCoord = new Vector2 <float>(1f, 0f)
},
new BasicMeshVertex
{
Position = new Vector3 <float>(1f, 1f, 0f),
Normal = new Vector3 <float>(1f, 0f, 0f),
TexCoord = new Vector2 <float>(0f, 1f)
},
new BasicMeshVertex
{
Position = new Vector3 <float>(1f, 0f, 0f),
Normal = new Vector3 <float>(1f, 0f, 0f),
TexCoord = new Vector2 <float>(1f, 1f)
},
// y-
new BasicMeshVertex
{
Position = new Vector3 <float>(0f, 0f, 1f),
Normal = new Vector3 <float>(0f, -1f, 0f),
TexCoord = new Vector2 <float>(0f, 0f)
},
new BasicMeshVertex
{
Position = new Vector3 <float>(1f, 0f, 1f),
Normal = new Vector3 <float>(0f, -1f, 0f),
TexCoord = new Vector2 <float>(1f, 0f)
},
new BasicMeshVertex
{
Position = new Vector3 <float>(1f, 0f, 0f),
Normal = new Vector3 <float>(0f, -1f, 0f),
TexCoord = new Vector2 <float>(1f, 1f)
},
new BasicMeshVertex
{
Position = new Vector3 <float>(0f, 0f, 1f),
Normal = new Vector3 <float>(0f, -1f, 0f),
TexCoord = new Vector2 <float>(0f, 0f)
},
new BasicMeshVertex
{
Position = new Vector3 <float>(1f, 0f, 0f),
Normal = new Vector3 <float>(0f, -1f, 0f),
TexCoord = new Vector2 <float>(1f, 1f)
},
new BasicMeshVertex
{
Position = new Vector3 <float>(0f, 0f, 0f),
Normal = new Vector3 <float>(0f, -1f, 0f),
TexCoord = new Vector2 <float>(0f, 1f)
},
// y+
new BasicMeshVertex
{
Position = new Vector3 <float>(1f, 1f, 1f),
Normal = new Vector3 <float>(0f, -1f, 0f),
TexCoord = new Vector2 <float>(0f, 0f)
},
new BasicMeshVertex
{
Position = new Vector3 <float>(0f, 1f, 1f),
Normal = new Vector3 <float>(0f, -1f, 0f),
TexCoord = new Vector2 <float>(1f, 0f)
},
new BasicMeshVertex
{
Position = new Vector3 <float>(0f, 1f, 0f),
Normal = new Vector3 <float>(0f, -1f, 0f),
TexCoord = new Vector2 <float>(1f, 1f)
},
new BasicMeshVertex
{
Position = new Vector3 <float>(1f, 1f, 1f),
Normal = new Vector3 <float>(0f, -1f, 0f),
TexCoord = new Vector2 <float>(0f, 0f)
},
new BasicMeshVertex
{
Position = new Vector3 <float>(0f, 1f, 0f),
Normal = new Vector3 <float>(0f, -1f, 0f),
TexCoord = new Vector2 <float>(1f, 1f)
},
new BasicMeshVertex
{
Position = new Vector3 <float>(1f, 1f, 0f),
Normal = new Vector3 <float>(0f, -1f, 0f),
TexCoord = new Vector2 <float>(0f, 1f)
},
};
var mesh = new Mesh <BasicMeshVertex>($"{nameof(World)} program-side mesh", vertices, MeshPrimitiveType.Triangles, false);
Mesh = new GPUMesh <BasicMeshVertex>(mesh, ShaderProgram);
}
