/// <summary>
/// Computes interpolated vertex on a cube edge between two voxels.
/// </summary>
/// <param name="v1">First voxel.</param>
/// <param name="v2">Second voxel.</param>
/// <returns>Interpolated vertex.</returns>
private static VoxelMeshVertex ComputeEdge(Voxel v1, Voxel v2)
{
VoxelMeshVertex vertex = new VoxelMeshVertex();
float interpolation = (seekValue - v1.Weight) / (v2.Weight - v1.Weight);
if (interpolation >= 0 && interpolation <= 1)
{
vertex.Position = v1.Position + (v2.Position - v1.Position) * interpolation;
vertex.Normal = v1.Normal + (v2.Normal - v1.Normal) * interpolation;
vertex.Ambient = v1.Ambient + (v2.Ambient - v1.Ambient) * interpolation;
}
return(vertex);
}
/// <summary>
/// Computes interpolated vertices on all cube edges.
/// </summary>
/// <param name="voxels">Voxels representing a cube.</param>
/// <returns>Array of interpolated vertices.</returns>
private static VoxelMeshVertex[] ComputeEdges(Voxel[] voxels)
{
VoxelMeshVertex[] interpolatedVertices = new VoxelMeshVertex[12];
interpolatedVertices[0] = ComputeEdge(voxels[0], voxels[1]);
interpolatedVertices[1] = ComputeEdge(voxels[1], voxels[2]);
interpolatedVertices[2] = ComputeEdge(voxels[2], voxels[3]);
interpolatedVertices[3] = ComputeEdge(voxels[3], voxels[0]);
interpolatedVertices[4] = ComputeEdge(voxels[4], voxels[5]);
interpolatedVertices[5] = ComputeEdge(voxels[5], voxels[6]);
interpolatedVertices[6] = ComputeEdge(voxels[6], voxels[7]);
interpolatedVertices[7] = ComputeEdge(voxels[7], voxels[4]);
interpolatedVertices[8] = ComputeEdge(voxels[0], voxels[4]);
interpolatedVertices[9] = ComputeEdge(voxels[1], voxels[5]);
interpolatedVertices[10] = ComputeEdge(voxels[3], voxels[7]);
interpolatedVertices[11] = ComputeEdge(voxels[2], voxels[6]);
return(interpolatedVertices);
}
/// <summary>
/// Computes interpolated vertices on all cube edges.
/// </summary>
/// <param name="voxels">Voxels representing a cube.</param>
/// <returns>Array of interpolated vertices.</returns>
private static VoxelMeshVertex[] ComputeEdges(Voxel[] voxels)
{
VoxelMeshVertex[] interpolatedVertices = new VoxelMeshVertex[12];
interpolatedVertices[0] = ComputeEdge(voxels[0], voxels[1]);
interpolatedVertices[1] = ComputeEdge(voxels[1], voxels[2]);
interpolatedVertices[2] = ComputeEdge(voxels[2], voxels[3]);
interpolatedVertices[3] = ComputeEdge(voxels[3], voxels[0]);
interpolatedVertices[4] = ComputeEdge(voxels[4], voxels[5]);
interpolatedVertices[5] = ComputeEdge(voxels[5], voxels[6]);
interpolatedVertices[6] = ComputeEdge(voxels[6], voxels[7]);
interpolatedVertices[7] = ComputeEdge(voxels[7], voxels[4]);
interpolatedVertices[8] = ComputeEdge(voxels[0], voxels[4]);
interpolatedVertices[9] = ComputeEdge(voxels[1], voxels[5]);
interpolatedVertices[10] = ComputeEdge(voxels[3], voxels[7]);
interpolatedVertices[11] = ComputeEdge(voxels[2], voxels[6]);
return interpolatedVertices;
}
/// <summary>
/// Computes interpolated vertex on a cube edge between two voxels.
/// </summary>
/// <param name="v1">First voxel.</param>
/// <param name="v2">Second voxel.</param>
/// <returns>Interpolated vertex.</returns>
private static VoxelMeshVertex ComputeEdge(Voxel v1, Voxel v2)
{
VoxelMeshVertex vertex = new VoxelMeshVertex();
float interpolation = (seekValue - v1.Weight) / (v2.Weight - v1.Weight);
if (interpolation >= 0 && interpolation <= 1)
{
vertex.Position = v1.Position + (v2.Position - v1.Position) * interpolation;
vertex.Normal = v1.Normal + (v2.Normal - v1.Normal) * interpolation;
vertex.Ambient = v1.Ambient + (v2.Ambient - v1.Ambient) * interpolation;
}
return vertex;
}
