使用深度缓冲区和深度测试初始化​​OpenGL [英] Initializing OpenGL with depth buffer and depth testing

问题描述

我想在不使用GLUT的情况下以与平台无关的方式使用深度缓冲区初始化OpenGL.

I would like to initialize OpenGL with a depth-buffer in a platform independent manner without using GLUT.

如何使用c#包装器在OpenGL场景中移除隐藏表面. 我没有使用GLUT，所以不能使用glutInitDisplayMode. 有什么主意吗?

How to remove hidden-surface in OpenGL scene using c# wrapper. I'm not using GLUT so I can't use glutInitDisplayMode. any idea?

有关更多详细信息:

我发现了以下有关隐藏表面去除的步骤:

I found these steps about Hidden-Surface removal:

1. 通过glutInitDisplayMode请求z缓冲区:

1. Request for z-buffer via glutInitDisplayMode:

// GLUT_DEPTH to request for depth-buffer
glutInitDisplayMode(GLUT_RGBA | GLUT_DOUBLE | GLUT_DEPTH);

启用z缓冲区进行深度测试:

Enable z-buffer for depth testing:

glEnable(GL_DEPTH_TEST);

清除颜色缓冲区时清除z缓冲区:

Clear the z-buffer when we clear the color buffer:

// Clear color and depth buffers
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);  

据我所知，glutInitDisplayMode是GLUT函数之一. 我可以消除此呼叫而不会产生不良影响. 如果没有，那么可以实现此目的的替代纯opengl调用是什么.

as I know, glutInitDisplayMode is one of GLUT functions. can i eliminate this call without bad effect. if not, what is the alternative pure opengl calls that do the trick.

我正在使用(科林·P·法赫伊)写的ac#包装器

I'm using a c# wrapper written by (Colin P. Fahey)

推荐答案

GLUT不是OpenGL！

无论GLUT做什么，您的C#包装器也可能会提供它，并且可能会更好.您需要一个深度缓冲区，并启用深度测试.

Whatever GLUT does, your C# wrapper probably offers it as well, and probably better. What you need are a depth buffer and enabling depth testing.

要获得深度缓冲区的确切步骤完全取决于您使用的包装器.因此，必须告诉我们它是哪个包装器.

The exact steps to be taken to get a depth buffer depend entirely on the wrapper you use. So it's essential to tell us, which wrapper it is.

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