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On the right is the shape generated by GL_LINE_STRIP and on the left is it generated by GL_POLYGON.

enter image description here There's a function which generates each point 1 by 1 in order.

Why is there such a big difference in the basic shape? Notice how less 'curved' each portion of the cloud is in the GL_POLYGON version.

Any clue how to fix this? Or maybe use something else to fill this polygon I have?

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2 回答 2

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GL_POLYGON仅适用于凸多边形：

GL_POLYGON：绘制单个凸多边形。顶点1通过N定义这个多边形。

您必须对多边形进行三角剖分GL_TRIANGLES并改用。

或者滥用模板缓冲区。

于 2013-10-03T20:09:20.403 回答
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或者您可以“遮蔽”多边形内部的片段。就像一个多边形填充算法

于 2013-10-04T13:46:02.857 回答