[vtkusers] How to build depth map of a 3D model?

[Bill Lorensen]

Wenlong,

Thanks for adding an example to the Wiki that shows how to create a
depth map in VTK:
http://vtk.org/Wiki/VTK/Examples/Cxx/Utilities/ZBuffer

I made some minor style changes. Also, you'll notice
1) The use of SmartPointer's. This prevents memory leaks.
2) Replaced SetInput/GetOutput with SetInputConnection/GetOutputPort.
These changes work with both VTK5 and VTK6.

Thanks again,

Bill

On Wed, May 9, 2012 at 8:23 AM, David Doria <daviddoria at gmail.com> wrote:
> On Wed, May 9, 2012 at 8:20 AM, Bill Lorensen <bill.lorensen at gmail.com> wrote:
>> vtkRenderWindow has methods
>>  // Set/Get the zbuffer data from the frame buffer.
>>  // (x,y) is any corner of the rectangle. (x2,y2) is its opposite corner on
>>  // the diagonal.
>>  virtual float *GetZbufferData(int x, int y, int x2, int y2) = 0;
>>  virtual int GetZbufferData(int x, int y, int x2, int y2, float *z) = 0;
>>  virtual int GetZbufferData(int x, int y, int x2, int y2,
>>                             vtkFloatArray *z) = 0;
>>
>
> Wenlong - this would be a great addition to the VTK examples wiki.
>
> David
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