问题描述
所以我有一个对象，它正在旋转，然后再次平移和旋转.我将这些翻译的矩阵存储为对象成员.现在当我开始选择对象时，我需要知道这个对象的 3D 世界坐标.
So i have an object which is getting rotated then translated and rotated again. I am storing a matrix of these translations as an object member. Now when i come to object picking i need to know the 3D world coords of this object.
目前我已经能够像这样获得物体的位置
Currently i have been able to get the position of the object like so
坐标[0] = finalMatrix[12];
坐标[1] = finalMatrix[13];
坐标[2] = finalMatrix[14];
这给了我对象的正确位置，但我也想考虑旋转.
This is giving me the correct positions of the objects but i want to take the rotations into account as well.
任何帮助都会很棒...
Any help would be great...
推荐答案
所以我是个白痴……我一开始就说对了.我所需要的只是 [12][13][14] 中的位置数据.我的代码中有几个愚蠢的错误，其中一个错误是在我的光线交叉点上没有足够的迭代......现在所有的排序都被整理好了，哈哈，我在踢自己..哈哈，无论如何，谢谢你们！！
So I am an idiot... i had it correct in the first place. All i needed was the position data in [12][13][14]. I had a couple stupid bugs in my code, one of which was not having enough iterations on my ray intersection...All sorted now lol im kicking myself..haha thanks anyway guys!!
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