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Hi all
I am new to povray and have been trying to render a surface without much
success, the surface could not be mathematically represented (will at least not
in one piece) as a function, but I do have the x, y, and z data. How do I go
about rendering this in povray? Joining up bicubic patch objects should work
but I do have a large number of points, the mesh grid is a square one if that
helps. To give an example, say the following is a portion of the surface I want
to render (a saddle point of Z=sin(X*Y). Could anyone point to to the right
direction or give me some sample code to study?
With thanks
>> X
X =
-1.5000 -1.0000 -0.5000 0 0.5000 1.0000 1.5000
-1.5000 -1.0000 -0.5000 0 0.5000 1.0000 1.5000
-1.5000 -1.0000 -0.5000 0 0.5000 1.0000 1.5000
-1.5000 -1.0000 -0.5000 0 0.5000 1.0000 1.5000
-1.5000 -1.0000 -0.5000 0 0.5000 1.0000 1.5000
-1.5000 -1.0000 -0.5000 0 0.5000 1.0000 1.5000
-1.5000 -1.0000 -0.5000 0 0.5000 1.0000 1.5000
>> Y
Y =
-1.5000 -1.5000 -1.5000 -1.5000 -1.5000 -1.5000 -1.5000
-1.0000 -1.0000 -1.0000 -1.0000 -1.0000 -1.0000 -1.0000
-0.5000 -0.5000 -0.5000 -0.5000 -0.5000 -0.5000 -0.5000
0 0 0 0 0 0 0
0.5000 0.5000 0.5000 0.5000 0.5000 0.5000 0.5000
1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000
1.5000 1.5000 1.5000 1.5000 1.5000 1.5000 1.5000
>> Z
Z =
0.7781 0.9975 0.6816 0 -0.6816 -0.9975 -0.7781
0.9975 0.8415 0.4794 0 -0.4794 -0.8415 -0.9975
0.6816 0.4794 0.2474 0 -0.2474 -0.4794 -0.6816
0 0 0 0 0 0 0
-0.6816 -0.4794 -0.2474 0 0.2474 0.4794 0.6816
-0.9975 -0.8415 -0.4794 0 0.4794 0.8415 0.9975
-0.7781 -0.9975 -0.6816 0 0.6816 0.9975 0.7781
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