[vtkusers] The stereo image for vtkOpenGLGPURayCastMapper can't render correctly.

[Lin SavageCin]

Dear All:
 
    The image 1 is the DICOM test image.
 
    When i use vtkFixedPointVolumeRayCastMapper to render, the stereo image has the terrific 
    effect.The result shows in image 2.
 
    However, when using vtkOpenGLGPURayCastMapper, the depth effect disappeared and the stereo 
    effect looks bad.
 
    To examine the image 3, i found that the image 3 and image 2 are not the same.
    In image 2, the related position of the blue and red block in the front is opposite to the 
    back.
    In image 3, the related position in the front is the same with the back.

    Otherwise, there is a curious phenomenon at the left-top corner.
    The stright line become curved.   

    Theoretically, the image 2 must the same with image 3.
    i guest the problem is result from GPU render mapper.
    What can i do to solve this problem???
 
Thanks.. 		 	   		  
The stereo image for vtkOpenGLGPURayCastMapper can't render correctly
http://cid-948439d188f5dfcf.skydrive.live.com/redir.aspx?page=browse&resid=948439D188F5DFCF!196&type=5&Bpub=SDX.Photos&Bsrc=Photomail&authkey=3N*gpxQhsh8%24
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