public static void PopulateMeshDataToDrawChunk(Chunk chunk, CustomMesh chunkCustomMesh, byte[,,] chunkData)
{
chunkCustomMesh.ClearData();
int currentVertexIndex = 0;
// Create mesh data
currentVertexIndex = 0;
for (int y = 0; y < Chunk.size.y; y++)
{
for (int x = 0; x < Chunk.size.x; x++)
{
for (int z = 0; z < Chunk.size.x; z++)
{
Vector3Int relativePosition = new Vector3Int(x, y, z);
if (chunk.GetCubeFromRelativePosition(relativePosition).isVisible)
{
//Add each voxel data to mesh data
for (int face = 0; face < 6; face++) // 6 faces in a cube
{
if (!IsCubeOpaque(chunk, relativePosition + VoxelData.faceChecks[face])) //Check if face is visible
{
byte blockId = chunkData[(int)relativePosition.x, (int)relativePosition.y, (int)relativePosition.z];
chunkCustomMesh.verticesInMesh.Add(relativePosition + VoxelData.vertexPosition[VoxelData.verticesOfFace[face, 0]]);
chunkCustomMesh.verticesInMesh.Add(relativePosition + VoxelData.vertexPosition[VoxelData.verticesOfFace[face, 1]]);
chunkCustomMesh.verticesInMesh.Add(relativePosition + VoxelData.vertexPosition[VoxelData.verticesOfFace[face, 2]]);
chunkCustomMesh.verticesInMesh.Add(relativePosition + VoxelData.vertexPosition[VoxelData.verticesOfFace[face, 3]]);
AddTexture(CubesManager.Instance.GetCube(blockId).GetTextureId(face), chunkCustomMesh.uvs);
chunkCustomMesh.indexOfVerticesToFormTriangles.Add(currentVertexIndex);
chunkCustomMesh.indexOfVerticesToFormTriangles.Add(currentVertexIndex + 1);
chunkCustomMesh.indexOfVerticesToFormTriangles.Add(currentVertexIndex + 2);
chunkCustomMesh.indexOfVerticesToFormTriangles.Add(currentVertexIndex + 2);
chunkCustomMesh.indexOfVerticesToFormTriangles.Add(currentVertexIndex + 1);
chunkCustomMesh.indexOfVerticesToFormTriangles.Add(currentVertexIndex + 3);
currentVertexIndex += 4;
/* // OLD METHOD - Adding duplicated vertices but easier tu underestand
* for (int vertexNumber = 0; vertexNumber < 6; vertexNumber++) // 6 vertex per face
* {
* // Save the vertex position
* int vertexIndexOfTriangle = VoxelData.verticesOfFace[face, vertexNumber];
* verticesInMesh.Add(VoxelData.vertexPosition[vertexIndexOfTriangle] + relativePosition);
*
* // Assign the vertex to the correspondent triangle
* indexOfVerticesToFormTriangles.Add(currentVertexIndex);
* currentVertexIndex++;
*
* // Assign the texture coordinates for that vertex
* uvs.Add(VoxelData.textureCoordinates[vertexNumber]);
* }*/
}
}
}
}
}
}
}
