// 0 Back, Left, Bottom
// 1 Front, Left, Bottom
// 2 Back, Right, Bottom
// 3 Front, Right, Bottom
// 4 Back, Left, Top
// 5 Front, Left, Top
// 6 Back, Right, Top
// 7 Front, Right, Top
public Mesh Generate(Vector3 [] positions, Quaternion orientation, Color[] colorPerFace)
{
int nvertices = 4 * 6;
Vector3[] vertices = new Vector3[nvertices];
int vertexIdx = 0;
Color[] colors = new Color[nvertices];
int colorsIdx = 0;
Vector2[] uv = new Vector2[nvertices];
int uvsIdx = 0;
Vector3[] normals = new Vector3[nvertices];
int normalIdx = 0;
int [] indices = new int[6 * 8];
int indexIdx = 0;
Mesh tempMesh = new Mesh();
CustomQuadGenerator quadGenerator = new CustomQuadGenerator();
Vector3 normal;
// Bottom
normal = orientation * Vector3.down;
quadGenerator.Generate(tempMesh, new Vector3 [] { positions[1], positions[0], positions[2], positions[3] }, new Color [] { colorPerFace[0], colorPerFace[0], colorPerFace[0], colorPerFace[0] }, normal);
vertexIdx += AddVector3(vertices, tempMesh.vertices, vertexIdx);
colorsIdx += AddColors(colors, tempMesh.colors, colorsIdx);
normalIdx += AddVector3(normals, tempMesh.normals, normalIdx);
indexIdx += AddIndices(indices, tempMesh.triangles, indexIdx, 0);
uvsIdx += AddUVs(uv, tempMesh.uv, uvsIdx);
// Top
normal = orientation * Vector3.up;
quadGenerator.Generate(tempMesh, new Vector3 [] { positions[4], positions[5], positions[7], positions[6] }, new Color [] { colorPerFace[1], colorPerFace[1], colorPerFace[1], colorPerFace[1] }, normal);
vertexIdx += AddVector3(vertices, tempMesh.vertices, vertexIdx);
colorsIdx += AddColors(colors, tempMesh.colors, colorsIdx);
normalIdx += AddVector3(normals, tempMesh.normals, normalIdx);
indexIdx += AddIndices(indices, tempMesh.triangles, indexIdx, 4);
uvsIdx += AddUVs(uv, tempMesh.uv, uvsIdx);
// Left
normal = orientation * Vector3.left;
quadGenerator.Generate(tempMesh, new Vector3 [] { positions[1], positions[5], positions[4], positions[0] }, new Color [] { colorPerFace[2], colorPerFace[2], colorPerFace[2], colorPerFace[2] }, normal);
vertexIdx += AddVector3(vertices, tempMesh.vertices, vertexIdx);
colorsIdx += AddColors(colors, tempMesh.colors, colorsIdx);
normalIdx += AddVector3(normals, tempMesh.normals, normalIdx);
indexIdx += AddIndices(indices, tempMesh.triangles, indexIdx, 8);
uvsIdx += AddUVs(uv, tempMesh.uv, uvsIdx);
// Right
normal = orientation * Vector3.right;
quadGenerator.Generate(tempMesh, new Vector3 [] { positions[2], positions[6], positions[7], positions[3] }, new Color [] { colorPerFace[3], colorPerFace[3], colorPerFace[3], colorPerFace[3] }, normal);
vertexIdx += AddVector3(vertices, tempMesh.vertices, vertexIdx);
colorsIdx += AddColors(colors, tempMesh.colors, colorsIdx);
normalIdx += AddVector3(normals, tempMesh.normals, normalIdx);
indexIdx += AddIndices(indices, tempMesh.triangles, indexIdx, 12);
uvsIdx += AddUVs(uv, tempMesh.uv, uvsIdx);
// Back
normal = orientation * Vector3.back;
quadGenerator.Generate(tempMesh, new Vector3 [] { positions[0], positions[4], positions[6], positions[2] }, new Color [] { colorPerFace[4], colorPerFace[4], colorPerFace[4], colorPerFace[4] }, normal);
vertexIdx += AddVector3(vertices, tempMesh.vertices, vertexIdx);
colorsIdx += AddColors(colors, tempMesh.colors, colorsIdx);
normalIdx += AddVector3(normals, tempMesh.normals, normalIdx);
indexIdx += AddIndices(indices, tempMesh.triangles, indexIdx, 16);
uvsIdx += AddUVs(uv, tempMesh.uv, uvsIdx);
// Front
normal = orientation * Vector3.forward;
quadGenerator.Generate(tempMesh, new Vector3 [] { positions[3], positions[7], positions[5], positions[1] }, new Color [] { colorPerFace[5], colorPerFace[5], colorPerFace[5], colorPerFace[5] }, normal);
vertexIdx += AddVector3(vertices, tempMesh.vertices, vertexIdx);
colorsIdx += AddColors(colors, tempMesh.colors, colorsIdx);
normalIdx += AddVector3(normals, tempMesh.normals, normalIdx);
indexIdx += AddIndices(indices, tempMesh.triangles, indexIdx, 20);
uvsIdx += AddUVs(uv, tempMesh.uv, uvsIdx);
Mesh mesh = new Mesh();
mesh.vertices = vertices;
mesh.normals = normals;
mesh.triangles = indices;
mesh.colors = colors;
mesh.uv = uv;
return(mesh);
}
// 0 Back, Left, Bottom
// 1 Front, Left, Bottom
// 2 Back, Right, Bottom
// 3 Front, Right, Bottom
// 4 Back, Left, Top
// 5 Front, Left, Top
// 6 Back, Right, Top
// 7 Front, Right, Top
public Mesh Generate(Vector3 [] positions, Quaternion orientation, Color[] colorPerFace)
{
int nvertices = 4 * 6;
Vector3[] vertices = new Vector3[nvertices];
int vertexIdx = 0;
Color[] colors = new Color[nvertices];
int colorsIdx = 0;
Vector2[] uv = new Vector2[nvertices];
int uvsIdx = 0;
Vector3[] normals = new Vector3[nvertices];
int normalIdx = 0;
int [] indices = new int[6 * 8];
int indexIdx = 0;
Mesh tempMesh = new Mesh();
CustomQuadGenerator quadGenerator = new CustomQuadGenerator();
Vector3 normal;
// Bottom
normal = orientation * Vector3.down;
quadGenerator.Generate(tempMesh, new Vector3 []{ positions[1], positions[0], positions[2], positions[3] }, new Color []{ colorPerFace[0], colorPerFace[0], colorPerFace[0], colorPerFace[0] }, normal);
vertexIdx += AddVector3(vertices, tempMesh.vertices, vertexIdx);
colorsIdx += AddColors(colors, tempMesh.colors, colorsIdx);
normalIdx += AddVector3(normals, tempMesh.normals, normalIdx);
indexIdx += AddIndices(indices, tempMesh.triangles, indexIdx, 0);
uvsIdx += AddUVs(uv, tempMesh.uv, uvsIdx);
// Top
normal = orientation * Vector3.up;
quadGenerator.Generate(tempMesh,new Vector3 []{ positions[4], positions[5], positions[7], positions[6] }, new Color []{ colorPerFace[1], colorPerFace[1], colorPerFace[1], colorPerFace[1] }, normal);
vertexIdx += AddVector3(vertices, tempMesh.vertices, vertexIdx);
colorsIdx += AddColors(colors, tempMesh.colors, colorsIdx);
normalIdx += AddVector3(normals, tempMesh.normals, normalIdx);
indexIdx += AddIndices(indices, tempMesh.triangles, indexIdx, 4);
uvsIdx += AddUVs(uv, tempMesh.uv, uvsIdx);
// Left
normal = orientation * Vector3.left;
quadGenerator.Generate(tempMesh,new Vector3 []{ positions[1], positions[5], positions[4], positions[0] }, new Color []{ colorPerFace[2], colorPerFace[2], colorPerFace[2], colorPerFace[2] }, normal);
vertexIdx += AddVector3(vertices, tempMesh.vertices, vertexIdx);
colorsIdx += AddColors(colors, tempMesh.colors, colorsIdx);
normalIdx += AddVector3(normals, tempMesh.normals, normalIdx);
indexIdx += AddIndices(indices, tempMesh.triangles, indexIdx, 8);
uvsIdx += AddUVs(uv, tempMesh.uv, uvsIdx);
// Right
normal = orientation * Vector3.right;
quadGenerator.Generate(tempMesh,new Vector3 []{ positions[2], positions[6], positions[7], positions[3] }, new Color []{ colorPerFace[3], colorPerFace[3], colorPerFace[3], colorPerFace[3] }, normal);
vertexIdx += AddVector3(vertices, tempMesh.vertices, vertexIdx);
colorsIdx += AddColors(colors, tempMesh.colors, colorsIdx);
normalIdx += AddVector3(normals, tempMesh.normals, normalIdx);
indexIdx += AddIndices(indices, tempMesh.triangles, indexIdx, 12);
uvsIdx += AddUVs(uv, tempMesh.uv, uvsIdx);
// Back
normal = orientation * Vector3.back;
quadGenerator.Generate(tempMesh,new Vector3 []{ positions[0], positions[4], positions[6], positions[2] }, new Color []{ colorPerFace[4], colorPerFace[4], colorPerFace[4], colorPerFace[4] }, normal);
vertexIdx += AddVector3(vertices, tempMesh.vertices, vertexIdx);
colorsIdx += AddColors(colors, tempMesh.colors, colorsIdx);
normalIdx += AddVector3(normals, tempMesh.normals, normalIdx);
indexIdx += AddIndices(indices, tempMesh.triangles, indexIdx, 16);
uvsIdx += AddUVs(uv, tempMesh.uv, uvsIdx);
// Front
normal = orientation * Vector3.forward;
quadGenerator.Generate(tempMesh,new Vector3 []{ positions[3], positions[7], positions[5], positions[1] }, new Color []{ colorPerFace[5], colorPerFace[5], colorPerFace[5], colorPerFace[5] }, normal);
vertexIdx += AddVector3(vertices, tempMesh.vertices, vertexIdx);
colorsIdx += AddColors(colors, tempMesh.colors, colorsIdx);
normalIdx += AddVector3(normals, tempMesh.normals, normalIdx);
indexIdx += AddIndices(indices, tempMesh.triangles, indexIdx, 20);
uvsIdx += AddUVs(uv, tempMesh.uv, uvsIdx);
Mesh mesh = new Mesh();
mesh.vertices = vertices;
mesh.normals = normals;
mesh.triangles = indices;
mesh.colors = colors;
mesh.uv = uv;
return mesh;
}
