0003716: 3D rendering opacity changes with image spacing

ID	Project	Category	View Status	Date Submitted	Last Update

0003716	Slicer4	Module VolumeRendering	public	2014-05-27 14:33	2014-05-27 14:38

Reporter	youngre	Assigned To	jcfr
Priority	normal	Severity	major	Reproducibility	always
Status	assigned	Resolution	open
Product Version	Slicer 4.3.1
Target Version		Fixed in Version

Summary	0003716: 3D rendering opacity changes with image spacing
Description	The 3D rendering changes if image spacing is changed. In general if the image spacing is decreased the volume tend to get more transparent. A sample data set is attached. The two png files (image_space_1mm.png and image_spacing_01mm.png) illustrate the difference when the image space is change from 1mm to .1mm. Notice how there is a whole in the volume for the small image spacing. The transfer functions are exactly the same.
Tags	No tags attached.

Date Modified	Username	Field	Change
2014-05-27 14:33	youngre	New Issue
2014-05-27 14:33	youngre	Status	new => assigned
2014-05-27 14:33	youngre	Assigned To	=> jcfr
2014-05-27 14:35	jcfr	Category	Core: Base Code => Module VolumeRendering
2014-05-27 14:38	jcfr	Note Added: 0011965

jcfr 2014-05-27 14:38 administrator ~0011965	Thanks for reporting this problem. Could you attach the files ? and also provide a step by step guide allowing to reproduce the issue ? It could be as simple as (Start Slicer -> Load files XXX -> Go to VolumeRendering Module -> Select GPU rendering -> Click on the eye icon)