MeshGenerator.cs

       static void Quad(Vector3 topLeft, Vector3 topRight, Vector3 bottomRight,Vector3 bottomLeft,float voxelSize,VoxelFace voxel, bool backFace,float selfShadeIntensity,List<Vector3> vertices, List<int> indexes, List<Color32> colors, List<Vector2> uvs)
        {
            int index = vertices.Count;

            vertices.Add(bottomLeft * voxelSize);
            vertices.Add(bottomRight * voxelSize);
            vertices.Add(topLeft * voxelSize);
            vertices.Add(topRight * voxelSize);

            Color temp = IntToColor(voxel.Color);
            int test1 = (((voxel.VertShade & Corners.TopRight) == Corners.TopRight) ? 1 : 0) + (((voxel.VertShade & Corners.BottomLeft) == Corners.BottomLeft) ? 1 : 0) + (((voxel.VertShade & Corners.TopLeft) == Corners.TopLeft) ? 1 : 0) + (((voxel.VertShade & Corners.BottomRight) == Corners.BottomRight) ? 1 : 0);
            int test2 = (((voxel.VertShade & Corners.TopRight) == Corners.TopRight) ? 1 : 0) + (((voxel.VertShade & Corners.BottomLeft) == Corners.BottomLeft) ? 1 : 0);
            int test3 = (((voxel.VertShade & Corners.TopLeft) == Corners.TopLeft) ? 1 : 0) + (((voxel.VertShade & Corners.BottomRight) == Corners.BottomRight) ? 1 : 0);
            if (((test2 > test3) && (test1>2)) || ((test2<=test3) && (test1==1)))
            {
                //colors.Add(new Color(temp.r * ((voxel.VertShade & Corners.TopLeft) == Corners.TopLeft ? (1f - selfShadeIntensity) : 1f), temp.g * ((voxel.VertShade & Corners.TopLeft) == Corners.TopLeft ? (1f - selfShadeIntensity) : 1f), temp.b * ((voxel.VertShade & Corners.TopLeft) == Corners.TopLeft ? (1f - selfShadeIntensity) : 1f), temp.a));
                //colors.Add(new Color(temp.r * ((voxel.VertShade & Corners.BottomLeft) == Corners.BottomLeft ? (1f - selfShadeIntensity) : 1f), temp.g * ((voxel.VertShade & Corners.BottomLeft) == Corners.BottomLeft ? (1f - selfShadeIntensity) : 1f), temp.b * ((voxel.VertShade & Corners.BottomLeft) == Corners.BottomLeft ? (1f - selfShadeIntensity) : 1f), temp.a));
                //colors.Add(new Color(temp.r * ((voxel.VertShade & Corners.TopRight) == Corners.TopRight ? (1f - selfShadeIntensity) : 1f), temp.g * ((voxel.VertShade & Corners.TopRight) == Corners.TopRight ? (1f - selfShadeIntensity) : 1f), temp.b * ((voxel.VertShade & Corners.TopRight) == Corners.TopRight ? (1f - selfShadeIntensity) : 1f), temp.a));
                //colors.Add(new Color(temp.r * ((voxel.VertShade & Corners.BottomRight) == Corners.BottomRight ? (1f - selfShadeIntensity) : 1f), temp.g * ((voxel.VertShade & Corners.BottomRight) == Corners.BottomRight ? (1f - selfShadeIntensity) : 1f), temp.b * ((voxel.VertShade & Corners.BottomRight) == Corners.BottomRight ? (1f - selfShadeIntensity) : 1f), temp.a));
                if(voxel.VertShade>0)
                { 
                    colors.Add(new Color(temp.r * (1f - selfShadeIntensity), temp.g * (1f - selfShadeIntensity), temp.b *(1f - selfShadeIntensity), temp.a));
                    colors.Add(new Color(temp.r * (1f - selfShadeIntensity), temp.g * (1f - selfShadeIntensity) , temp.b *(1f - selfShadeIntensity), temp.a));
                    colors.Add(new Color(temp.r * (1f - selfShadeIntensity), temp.g *(1f - selfShadeIntensity) , temp.b * (1f - selfShadeIntensity) , temp.a));
                    colors.Add(new Color(temp.r * (1f - selfShadeIntensity), temp.g * (1f - selfShadeIntensity), temp.b * (1f - selfShadeIntensity) , temp.a));
                }
                else
                {
                    colors.Add(new Color(temp.r , temp.g , temp.b , temp.a));
                    colors.Add(new Color(temp.r , temp.g, temp.b , temp.a));
                    colors.Add(new Color(temp.r , temp.g, temp.b , temp.a));
                    colors.Add(new Color(temp.r , temp.g, temp.b , temp.a));
                }

                if (backFace)
                {
                    indexes.Add(index + 2);
                    indexes.Add(index);
                    indexes.Add(index + 1);
                    indexes.Add(index + 1);
                    indexes.Add(index + 3);
                    indexes.Add(index + 2);
                }
                else
                {
                    indexes.Add(index + 2);
                    indexes.Add(index + 3);
                    indexes.Add(index + 1);
                    indexes.Add(index + 1);
                    indexes.Add(index);
                    indexes.Add(index + 2);
                }
            }
            else
            {
                //colors.Add(new Color(temp.r * ((voxel.VertShade & Corners.TopLeft) == Corners.TopLeft ? (1f - selfShadeIntensity) : 1f), temp.g * ((voxel.VertShade & Corners.TopLeft) == Corners.TopLeft ? (1f - selfShadeIntensity) : 1f), temp.b * ((voxel.VertShade & Corners.TopLeft) == Corners.TopLeft ? (1f - selfShadeIntensity) : 1f), temp.a));
                //colors.Add(new Color(temp.r * ((voxel.VertShade & Corners.BottomLeft) == Corners.BottomLeft ? (1f - selfShadeIntensity) : 1f), temp.g * ((voxel.VertShade & Corners.BottomLeft) == Corners.BottomLeft ? (1f - selfShadeIntensity) : 1f), temp.b * ((voxel.VertShade & Corners.BottomLeft) == Corners.BottomLeft ? (1f - selfShadeIntensity) : 1f), temp.a));
                //colors.Add(new Color(temp.r * ((voxel.VertShade & Corners.TopRight) == Corners.TopRight ? (1f - selfShadeIntensity) : 1f), temp.g * ((voxel.VertShade & Corners.TopRight) == Corners.TopRight ? (1f - selfShadeIntensity) : 1f), temp.b * ((voxel.VertShade & Corners.TopRight) == Corners.TopRight ? (1f - selfShadeIntensity) : 1f), temp.a));
                //colors.Add(new Color(temp.r * ((voxel.VertShade & Corners.BottomRight) == Corners.BottomRight ? (1f - selfShadeIntensity) : 1f), temp.g * ((voxel.VertShade & Corners.BottomRight) == Corners.BottomRight ? (1f - selfShadeIntensity) : 1f), temp.b * ((voxel.VertShade & Corners.BottomRight) == Corners.BottomRight ? (1f - selfShadeIntensity) : 1f), temp.a));

                if (voxel.VertShade > 0)
                {
                    colors.Add(new Color(temp.r * (1f - selfShadeIntensity), temp.g * (1f - selfShadeIntensity), temp.b * (1f - selfShadeIntensity), temp.a));
                    colors.Add(new Color(temp.r * (1f - selfShadeIntensity), temp.g * (1f - selfShadeIntensity), temp.b * (1f - selfShadeIntensity), temp.a));
                    colors.Add(new Color(temp.r * (1f - selfShadeIntensity), temp.g * (1f - selfShadeIntensity), temp.b * (1f - selfShadeIntensity), temp.a));
                    colors.Add(new Color(temp.r * (1f - selfShadeIntensity), temp.g * (1f - selfShadeIntensity), temp.b * (1f - selfShadeIntensity), temp.a));
                }
                else
                {
                    colors.Add(new Color(temp.r, temp.g, temp.b, temp.a));
                    colors.Add(new Color(temp.r, temp.g, temp.b, temp.a));
                    colors.Add(new Color(temp.r, temp.g, temp.b, temp.a));
                    colors.Add(new Color(temp.r, temp.g, temp.b, temp.a));
                }

                if (backFace)
                {
                    indexes.Add(index + 3);
                    indexes.Add(index + 2);
                    indexes.Add(index);
                    indexes.Add(index);
                    indexes.Add(index + 1);
                    indexes.Add(index + 3);
                }
                else
                {
                    indexes.Add(index + 3);
                    indexes.Add(index + 1);
                    indexes.Add(index);
                    indexes.Add(index);
                    indexes.Add(index + 2);
                    indexes.Add(index + 3);
                }
            }

            uvs.Add(new Vector2(1f, 1f));
            uvs.Add(new Vector2(0f, 1f));
            uvs.Add(new Vector2(0f, 0f));
            uvs.Add(new Vector2(1f, 0f));
    }