public static Vbo AcquireVbo(this IShape shape, VboType vboType)
{
var vbo = Vbos.FirstOrDefault(p => p.Matches(shape, vboType));
if (vbo == null)
{
Vbos.Add(vbo = new Vbo(shape, vboType));
}
vbo.AddRef();
return(vbo);
}
public Vbo(IShape shape, VboType vboType)
{
if (shape == null)
{
return;
}
_pattern = shape.Pattern;
_stripeCount = shape.StripeCount;
_vboType = vboType;
GL.GenBuffers(1, out int buffer);
BufferID = buffer;
GL.BindBuffer(BufferTarget, BufferID);
switch (_vboType)
{
case VboType.Vertex:
BufferData(shape.GetCoordsCount() * sizeof(float), shape.GetCoords());
break;
case VboType.Index:
ElementsCount = shape.GetIndicesCount();
BufferData(ElementsCount * sizeof(int), shape.GetIndices());
break;
}
}
public bool Matches(IShape shape, VboType vboType) => shape != null && _vboType == vboType && _stripeCount.EquiAxial(shape.StripeCount) && (_vboType != VboType.Index || _pattern == shape.Pattern);
