Hi,<br><br>I am running ParaView 2.4.3 or 2.5 and am seeing something unexpected:<br><br>I am loading two separate 3-D images saved as legacy vtk files and attempting to render isosurfaces of the data. the images are thresholded, such that all the pixels in image1 are equal to 10, and all the pixels in image2 are equal to 20 (just for example). each image defines an object that is distinct in space from objects in the other image. so far, this is working fine: i read in both images, render an isosurface at value 10 for image 1, at 20 for image 2, and i can color them separately without any trouble. problem is, when i set some transparency values to the isosurfaces and then rotate the volume to get a different angle, one of the isosurfaces occludes the other such that it is entirely invisible. in case that is not clear, here are a couple images of what i am talking about:
<br><br><a href="http://ncmir.ucsd.edu/~bryan/PVimage001.jpg">http://ncmir.ucsd.edu/~bryan/PVimage001.jpg</a><br><a href="http://ncmir.ucsd.edu/~bryan/PVimage002.jpg">http://ncmir.ucsd.edu/~bryan/PVimage002.jpg</a><br><a href="http://ncmir.ucsd.edu/~bryan/PVimage003.jpg">
http://ncmir.ucsd.edu/~bryan/PVimage003.jpg</a><br><br>so the gray blob in the top left corner of PVimage001.jpg appears to have jumped to the foreground in PVimage002.jpg, even though the green one, in reality, should be in front.
<br><br>can someone please tell me what i am doing wrong (and/or if you need more info to help troubleshoot this)?<br><br>thanks,<br>bryan<br><br>