openGL之API学习（二十七）glEnable

最新推荐文章于 2022-09-03 11:26:04 发布

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最新推荐文章于 2022-09-03 11:26:04 发布 · 803 阅读

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本文详细介绍了OpenGL中的glEnable函数，用于开启服务器端的各种OpenGL功能，如深度测试、混合、多采样等。通过glEnable可以设置如GL_DEPTH_TEST、GL_BLEND等标志，实现深度缓冲、颜色逻辑操作、多边形偏移等功能，从而优化图形渲染效果。

开启服务器端的opengl功能

void glEnable( GLenum cap);

GL_BLEND

If enabled, blend the computed fragment color values with the values in the color buffers. See glBlendFunc.
GL_CLIP_DISTANCE i

If enabled, clip geometry against user-defined half space i.
GL_COLOR_LOGIC_OP

If enabled, apply the currently selected logical operation to the computed fragment color and color buffer values. See glLogicOp.
GL_CULL_FACE

If enabled, cull polygons based on their winding in window coordinates. See glCullFace.
GL_DEBUG_OUTPUT

If enabled, debug messages are produced by a debug context. When disabled, the debug message log is silenced. Note that in a non-debug context, very few, if any messages might be produced, even when GL_DEBUG_OUTPUT is enabled.
GL_DEBUG_OUTPUT_SYNCHRONOUS

If enabled, debug messages are produced synchronously by a debug context. If disabled, debug messages may be produced asynchronously. In particular, they may be delayed relative to the execution of GL commands, and the debug callback function may be called from a thread other than that in which the commands are executed. See glDebugMessageCallback.
GL_DEPTH_CLAMP