/// <summary>
/// Binds the VAO ready for drawing
/// </summary>
public void BindForDrawing(VertexLayout VertexLayout)
{
GL.BindVertexArray(handle);
vbo.Bind();
vbo.EnableAttribute(VertexLayout);
vbo.SetAttribute(VertexLayout);
}
/// <summary>
/// Adds a VBO object to the VAO needs to have one to draw, if a second is added it will replace the first and the first will be disposed of
/// </summary>
/// <param name="VBO">The VBO object to be added</param>
public void SetVBO(VertexBufferObject VBO)
{
if (vbo != null)
{
UnBind();
vbo.Dispose();
Bind();
}
vbo = VBO;
vbo.Bind();
vbo.BufferData();
}
/// <summary>
/// Sets the VAO vertex layout attributes
/// </summary>
/// <remarks>
/// These attributes remain valid unless a different shader is used to draw the object, and will be remembered by the VAO
/// </remarks>
public void SetAttributes(VertexLayout VertexLayout)
{
vbo.Bind();
vbo.EnableAttribute(VertexLayout);
vbo.SetAttribute(VertexLayout);
}
/// <summary>
/// Update the VertexData into the the VBO
/// </summary>
public void UpdateVBO(LibRenderVertex[] VertexData, int Offset = 0)
{
vbo.Bind();
vbo.BufferSubData(VertexData, Offset);
}