直到现在,我一直使用<代码>glu Project,展望投影机和一个以低左侧(-1,-1,0)的屏幕为中心的可变广场。 I zoom 平方调整Z轴。
例如,I zoomed the平方到Z=-5,我打电话glu Project,附有开放式GL物体参数(-1,-1,0)以了解该平方垂直的窗口X,Y的位置。 罚款。
但现在,我改变了我的结构,现在,我不使用Z到zoom,我向动物群伸出援手。 我的广场为Z=1.0f,最初将其缩小到(0.01f,0.01f,0.0f)小面积。
哪些X、Y、Z数值是我不得不通过<条码>glu Project? Im通过-1,-1,0和glu Project使我错失了x,y out PutCoords Value, (-101.774124,-226.27419)
<Again, 并再次:code>glu Project与开放式GL转变管道(当然有开放式GL s matrices and viewport)相同。 因此,无论你向开放式利比里亚市场投送的是什么vert,都是你必须列入<条码>glu项目/代码>的vert。
如果你使用斜面(-1,-1,0)使多角能够使用,那么你必须使用<条码>glu Project。 任何其他转变(无论是翻译、规模、轮换还是任何转变)都来自转变矩阵。 但是,如果你确实使用斜面(0.01、0.01、0),那么你就必须将这一条列入<代码>glu Project。
• 确保你完全了解开放式GL转变管道(,这个问题可帮助)和glu Project的工作,然后再继续使用这一管道,并向你认为错误结果的每一项投入提出问题。
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