Library to create procedural meshes in Unity3D. Meshes are generated in a seprate thread and copied to the GameObject when ready.
Requires PixelsForGlory.Base and PixelsForGlory.Extensions
Requires Player to be using .NET 4.6+
Add as a submodule to your Unity3D project directory:
git submodule add git@github.com:PixelsForGlory/Procedural.git ${ProjectRoot}/Assets/Plugins/PixelsForGlory/Procedural
-
Make sure the "ColorVoxelMaterial" has the "AlphaMap" texture set for the "Metallic Map", "Smoothness Map", and "Emission Map".
-
Make sure that the AlphaMap.png has the following texture import settings:
-
If you want to use the TextureVoxelMesh, use similar settings as the following. Not using mipmaps and filtering as point will make a really small texture render sharply.
The mesh will always produce a 1 x 1 x 1 scale version of the mesh. It can be scaled up and down as needed with the Unity3D scale.
The following example will create a randomly colored cube on a GameObject:
using System.Threading.Tasks;
using UnityEngine;
using PixelsForGlory;
using PixelsForGlory.Collections;
using PixelsForGlory.Procedural;
[RequireComponent(typeof(MeshFilter))]
[RequireComponent(typeof(MeshRenderer))]
public class VoxelTest : MonoBehaviour
{
private VoxelMeshData _data;
private VoxelMeshTask _meshTask;
private Task _task;
public void Start()
{
var dimensions = new Dimensions3D(32, 32, 32);
var voxels = new List3D<IVoxel>(dimensions);
for (int x = 0; x < dimensions.X; x++)
{
for (int y = 0; y < dimensions.Y; y++)
{
for (int z = 0; z < dimensions.Z; z++)
{
voxels[x, y, z] = new ColorVoxel(new Color(Random.value, Random.value, Random.value));
}
}
}
_data = new VoxelMeshData("test", voxels);
_meshTask = new VoxelMeshTask(_data);
_task = Task.Run(() => _meshTask.RunTask());
}
public void Update()
{
if (_task != null && _task.Status == TaskStatus.RanToCompletion)
{
var meshFilter = gameObject.GetComponent<MeshFilter>();
var mesh = new Mesh()
{
vertices = _meshTask.Vertices,
normals = _meshTask.Normals,
colors = _meshTask.Colors,
uv = _meshTask.UV,
uv2 = _meshTask.UV2,
uv3 = _meshTask.UV3,
triangles = _meshTask.Triangles
};
meshFilter.sharedMesh = mesh;
_task = null;
}
}
}
The following example will create a texted cube on a GameObject:
using System.Threading.Tasks;
using UnityEngine;
using PixelsForGlory;
using PixelsForGlory.Collections;
using PixelsForGlory.Procedural;
[RequireComponent(typeof(MeshFilter))]
[RequireComponent(typeof(MeshRenderer))]
public class VoxelTest : MonoBehaviour
{
private VoxelMeshData _data;
private VoxelMeshTask _meshTask;
private Task _task;
public void Start()
{
TextureVoxel.TextureVoxelMap.Clear();
TextureVoxel.TextureVoxelMap.Add(
new TextureVoxelSetup()
{
XNegativeTextureIndex = 1,
XPositiveTextureIndex = 1,
YNegativeTextureIndex = 3,
YPositiveTextureIndex = 2,
ZNegativeTextureIndex = 1,
ZPositiveTextureIndex = 1
});
TextureVoxel.TextureVoxelMap.Add(
new TextureVoxelSetup()
{
XNegativeTextureIndex = 4,
XPositiveTextureIndex = 4,
YNegativeTextureIndex = 4,
YPositiveTextureIndex = 4,
ZNegativeTextureIndex = 4,
ZPositiveTextureIndex = 4
});
var dimensions = new Dimensions3D(2, 2, 2);
var voxels = new List3D<IVoxel>(dimensions);
for (int x = 0; x < dimensions.X; x++)
{
for (int y = 0; y < dimensions.Y; y++)
{
for (int z = 0; z < dimensions.Z; z++)
{
if (x == z && y == z)
{
voxels[x, y, z] = new TextureVoxel(0, 1);
}
else
{
voxels[x, y, z] = new TextureVoxel(0);
}
}
}
}
_data = new VoxelMeshData("test", voxels);
_meshTask = new VoxelMeshTask(_data);
_task = Task.Run(() => _meshTask.RunTask());
}
public void Update()
{
if (_task != null && _task.Status == TaskStatus.RanToCompletion)
{
var meshFilter = gameObject.GetComponent<MeshFilter>();
var mesh = new Mesh()
{
vertices = _meshTask.Vertices,
normals = _meshTask.Normals,
colors = _meshTask.Colors,
uv = _meshTask.UV,
uv2 = _meshTask.UV2,
uv3 = _meshTask.UV3,
triangles = _meshTask.Triangles
};
meshFilter.sharedMesh = mesh;
_task = null;
}
}
}
- The texture map, like the test map provided in this repository, is setup through a mapping configuration in the static
TextureVoxelMaplist - Index 0 of the texture map should be empty. For example, the test texture map has 32x32 squares to map. The first 32x32 is completely zeroed out (
float4(0, 0, 0, 0)) - The texture map needs to save the alpha channel to work properly.
Color Voxel Mesh will look something like this:
Texture Voxel Mesh will look something like this:
Enjoy!
If any issues or bugs are found, please let me know @afuzzyllama