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我試圖加載層格式如下:使用glDrawElements繪製這些數據時應該使用什麼參數?
0.000000 0.000000 -1.543509 0.000000 0.000000 -1.000000 0.838731 0.300864 106 34 22
vertex pos/ normal dir/texture coords/ vertex color
和麪定義是這樣的:
3 0 1 2
how much vertices per face/ which vertex for x/ which vertex for y/which vertex for z/
然後我到一個頂點數組閱讀和麪部陣列,吸引他們這樣的:
//bind buffer first of course)
glDrawElements(GL_TRIANGLE_FAN,vert_amount,GL_UNSIGNED_INT,faces);
我使用opengles 1.1,所以我堅持TRIANGLE_FAN我猜,結果搞砸了,所以我想默認層面的定義是不適合對於opengl的權利?如果我想使用glDrawElements如何重新組織面孔?
這裏是層模型文件的簡單的立方體:
1.000000 1.000000 -1.000000 0.000000 0.000000 -1.000000
1.000000 -1.000000 -1.000000 0.000000 0.000000 -1.000000
-1.000000 -1.000000 -1.000000 0.000000 0.000000 -1.000000
1.000000 0.999999 1.000000 -0.000000 0.000000 1.000000
-1.000000 1.000000 1.000000 -0.000000 0.000000 1.000000
-1.000000 -1.000000 1.000000 -0.000000 0.000000 1.000000
1.000000 1.000000 -1.000000 1.000000 -0.000001 -0.000000
1.000000 0.999999 1.000000 1.000000 -0.000001 -0.000000
0.999999 -1.000001 1.000000 1.000000 -0.000001 -0.000000
1.000000 -1.000000 -1.000000 -0.000000 -1.000000 -0.000000
0.999999 -1.000001 1.000000 -0.000000 -1.000000 -0.000000
-1.000000 -1.000000 1.000000 -0.000000 -1.000000 -0.000000
-1.000000 -1.000000 -1.000000 -1.000000 0.000000 -0.000000
-1.000000 -1.000000 1.000000 -1.000000 0.000000 -0.000000
-1.000000 1.000000 1.000000 -1.000000 0.000000 -0.000000
1.000000 0.999999 1.000000 0.000000 1.000000 0.000000
1.000000 1.000000 -1.000000 0.000000 1.000000 0.000000
-1.000000 1.000000 -1.000000 0.000000 1.000000 0.000000
-1.000000 1.000000 -1.000000 0.000000 0.000000 -1.000000
0.999999 -1.000001 1.000000 -0.000000 0.000000 1.000000
1.000000 -1.000000 -1.000000 1.000000 0.000000 0.000000
1.000000 1.000000 -1.000000 1.000000 0.000000 0.000000
0.999999 -1.000001 1.000000 1.000000 0.000000 0.000000
-1.000000 -1.000000 -1.000000 -0.000000 -1.000000 0.000000
-1.000000 1.000000 -1.000000 -1.000000 0.000000 -0.000000
-1.000000 1.000000 1.000000 0.000000 1.000000 0.000000
3 0 1 2
3 3 4 5
3 6 7 8
3 9 10 11
3 12 13 14
3 15 16 17
3 18 0 2
3 19 3 5
3 20 21 22
3 23 9 11
3 24 12 14
3 25 15 17