OpenTk - 如何启用多重采样

OpenTk - How to Enable Multisampling

我正在尝试在 OpenTK 中实现多重采样,但是当我启用它时,两者之间没有区别 没有抗锯齿和多重采样。

No Antyaliasing

Multisampling Enabled

这是 OnRenderFrame 中用于多重采样的代码:

protected override void OnRenderFrame(FrameEventArgs e)
    {
        base.OnRenderFrame(e);
        GL.Viewport(0, 0, Width, Height);
        GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
        GL.Enable(EnableCap.DepthTest);

        GL.Clear(ClearBufferMask.AccumBufferBit);

        shaders[activeShader].EnableVertexAttribArrays();

        int indiceat = 0;
        GL.Enable(EnableCap.Multisample);
        GL.Hint(HintTarget.MultisampleFilterHintNv,HintMode.Nicest);
        foreach (Volume v in objects)
        {
            GL.ActiveTexture(TextureUnit.Texture0);
            GL.BindTexture(TextureTarget.Texture2D, v.TextureID);
            GL.UniformMatrix4(shaders[activeShader].GetUniform("modelview"), false, ref v.ModelViewProjectionMatrix);

            GL.DrawElements(BeginMode.Triangles, v.IndiceCount, DrawElementsType.UnsignedInt, indiceat * sizeof(uint));
            indiceat += v.IndiceCount;
        }
}

您必须通过设置 GraphicsMode. Set the GraphicsMode when the GameWindow 构造来创建具有多重采样缓冲区的 window:

例如:

public class OpenTK_Window
    : GameWindow
{
    OpenTK_Window(int width, int height, string title)
        : base(width, height, new GraphicsMode(32, 24, 8, 8), title,
    {}

    // [...]
}

在这种情况下,GraphicsMode 的构造函数的第 4 个参数是样本数。