public Box(Vector3 min, Vector3 max)
{
PrimitiveType = PrimitiveType.Lines;
var coordinates = new Vector3[8];
coordinates[0] = min;
coordinates[1] = new Vector3(max[0], min[1], min[2]);
coordinates[2] = new Vector3(min[0], max[1], min[2]);
coordinates[3] = new Vector3(max[0], max[1], min[2]);
coordinates[4] = max;
coordinates[5] = new Vector3(min[0], max[1], max[2]);
coordinates[6] = new Vector3(max[0], min[1], max[2]);
coordinates[7] = new Vector3(min[0], min[1], max[2]);
var indices = new ushort[]
{
0, 1,
0, 2,
0, 7,
7, 5,
7, 6,
4, 6,
4, 5,
3, 1,
3, 2,
3, 4,
5, 2,
6, 1,
};
ElementCount = indices.Length;
using (Begin())
{
GenerateBuffer();
BindBuffer(BufferTarget.ArrayBuffer, BufferIdents.Last());
VertexAttribArray(0, 3, VertexAttribPointerType.Float);
BufferVertexAttributeData(coordinates, BufferUsageHint.StaticDraw);
GenerateBuffer();
BindBuffer(BufferTarget.ElementArrayBuffer, BufferIdents.Last());
BufferElementArrayData(indices);
}
}
public void Resize(Vector3 min, Vector3 max)
{
var coordinates = new[]
{
min,
new Vector3(max[0], min[1], min[2]),
new Vector3(min[0], max[1], min[2]),
new Vector3(max[0], max[1], min[2]),
max,
new Vector3(min[0], max[1], max[2]),
new Vector3(max[0], min[1], max[2]),
new Vector3(min[0], min[1], max[2])
};
using (Begin())
{
BindBuffer(BufferTarget.ArrayBuffer, BufferIdents.First());
BufferVertexAttributeData(coordinates, BufferUsageHint.StaticDraw);
}
}
