像这样?
Graphics3D[{{Texture[
Graphics[{Opacity[0.5], Blue, Disk @@@ lalist[[2]]},
Frame -> True]],
Polygon[{{-1, -1, -1}, {1, -1, -1}, {1, 1, -1}, {-1, 1, -1}},
VertexTextureCoordinates \[Rule] {{0, 0}, {1, 0}, {1, 1}, {0,
1}}]}, {Texture[
Graphics[{Opacity[0.5], Red, Disk @@@ lalist[[1]]},
Frame -> True]],
Polygon[{{-1, -1, 1}, {1, -1, 1}, {1, 1, 1}, {-1, 1, 1}},
VertexTextureCoordinates \[Rule] {{0, 0}, {1, 0}, {1, 1}, {0,
1}}]}}, Lighting \[Rule] "Neutral"]
很多不透明度为 .2:
tab = Table[{Opacity \[Rule] .2,
Texture[Graphics[{Opacity[0.5], Blue, Disk @@@ lalist[[2]]},
Frame -> True]],
Polygon[{{-1, -1, z}, {1, -1, z}, {1, 1, z}, {-1, 1, z}},
VertexTextureCoordinates \[Rule] {{0, 0}, {1, 0}, {1, 1}, {0,
1}}]}, {z, -2, 2, 1}];
plt = Graphics3D[{tab}, Lighting \[Rule] "Neutral"]
而400在速度方面似乎并没有太大问题(你可以很容易地修改上面的代码来查看)。
编辑:好吧,只是为了傻,试试这个
Dynamic[Graphics3D[{{Texture[#],
Polygon[{{-1, -1, -1}, {1, -1, -1}, {1, 1, -1}, {-1, 1, -1}},
VertexTextureCoordinates \[Rule] {{0, 0}, {1, 0}, {1, 1}, {0,
1}}]}, {Texture[Rotate[#, \[Pi]/2]],
Polygon[{{-1, -1, 1}, {1, -1, 1}, {1, 1, 1}, {-1, 1, 1}},
VertexTextureCoordinates \[Rule] {{0, 0}, {1, 0}, {1, 1}, {0,
1}}]}}, Lighting \[Rule] "Neutral"] &@Binarize[CurrentImage[]]]
给了
(或类似的东西)、可旋转、实时更新等。