[vtkusers] Minecraft-style volume rendering

[Tim Hutton]

Thanks Bill,

Yes, vtkImageData -> vtkThreshold -> vtkGeometryFilter was what I was
looking for.

On 29 March 2012 17:15, Bill Lorensen <bill.lorensen at gmail.com> wrote:
> Tim,
>
> Take a look at this example:
> http://www.vtk.org/Wiki/VTK/Examples/Cxx/Medical/GenerateCubesFromLabels
>
> The output of transformModel may be what you want.
>
> Bill
>
> On Thu, Mar 29, 2012 at 8:40 AM, Tim Hutton <tim.hutton at gmail.com> wrote:
>> Hello,
>>
>> I've got a 3d images (vtkImageData) containing values 0 and 1. I'd
>> like to render this as blocky voxels - rendered with cubes like in
>> Minecraft.
>>
>> I've tried vtkContourFilter and vtkDiscreteMarchingCubes but these
>> both show angled surfaces - e.g. an octahedron for an isolated voxel.
>>
>> I tried vtkGeometryFilter but this just gives me the outer surface of
>> the volume. And vtkImageThreshold just changes the pixel values.
>>
>> I tried vtkImageDataGeometryFilter but this doesn't seem to support
>> thresholding in 3D?
>>
>> Thanks for your help,
>>
>> Tim
>>
>> --
>> Tim Hutton - http://www.sq3.org.uk - http://profiles.google.com/tim.hutton/
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>
>
> --
> Unpaid intern in BillsBasement at noware dot com



-- 
Tim Hutton - http://www.sq3.org.uk - http://profiles.google.com/tim.hutton/