/// <summary>
/// Installs a given program as part of the current rendering state, then draws this array object.
/// </summary>
/// <typeparam name="TAttr1">The type of the 1st attribute buffer object of the VAO.</typeparam>
/// <param name="vao">The VAO to use.</param>
/// <param name="program">The program to use.</param>
/// <param name="count">The number of vertices to draw, or -1 to draw all vertices.</param>
public static void Draw <TAttr1>(
this IVertexArrayObject <TAttr1> vao,
GlProgram program,
int count = -1)
where TAttr1 : struct
{
program.Use();
vao.Draw(count);
}
/// <summary>
/// Installs a given program as part of the current rendering state, then draws this array object.
/// </summary>
/// <typeparam name="TAttr1">The type of the 1st attribute buffer object of the VAO.</typeparam>
/// <typeparam name="TAttr2">The type of the 2nd attribute buffer object of the VAO.</typeparam>
/// <typeparam name="TUbo1">The type of the 1st uniform buffer object of the program.</typeparam>
/// <param name="vao">The VAO to use.</param>
/// <param name="program">The program to use.</param>
/// <param name="count">The number of vertices to draw, or -1 to draw all vertices.</param>
public static void Draw <TAttr1, TAttr2, TUbo1>(
this IVertexArrayObject <TAttr1, TAttr2> vao,
GlProgram <TUbo1> program,
int count = -1)
where TAttr1 : struct
where TAttr2 : struct
where TUbo1 : struct
{
program.Use();
vao.Draw(count);
}
public void Write(string txt, float x, float y, float size, Color cl)
{
_pgm.Use();
_uColor.Set((float)cl.R / byte.MaxValue, (float)cl.G / byte.MaxValue, (float)cl.B / byte.MaxValue, (float)cl.A / byte.MaxValue);
_font.Render(this, txt, x, y, size);
}