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Vis > visualization > explorer > bugs > Iris Explorer Bug Listing
Iris Explorer Bug Listing
The following are bugs experienced locally at GFDL using NAG's Iris Explorer v. 5.0.
1. Segmentation Fault on Save
| Reported by | Remik, Sept. 2003 |
| Platform(s) | Linux 7.1, IRIX 6.5 |
| Status | Unresolved Example needed. NAG technician informed: astrid.vanmaanen@nag.co.uk, 11.25.2003 |
| Example Files | |
| Description | |
| Explorer exits with a segmentation fault when trying to "Save All". An example will be available sometime in the future. | |
2. Render Snapshot Blank for Large Geometries using WriteImg/DisplayImg
| Reported by | Remik, Sept. 2003 |
| Platform(s) | Linux 7.1, IRIX 6.5 |
| Status | Unresolved NAG technician informed: astrid.vanmaanen@nag.co.uk, 11.25.2003 |
| Example Files | halfsphere.iv, halfsphere.irix65.map, halfsphere.linux71.map |
| Description | |
| The WriteImg and DisplayImg modules produce a blank image when passed data from Render's Snapshot port ONLY when a large geometry is rendered. This happens on our Linux workstation with an nVidia graphics card. This isn't a problem when run locally on the IRIX workstation. The problem must be from either the graphics card driver, OpenGL version, or use of a different shared library file. | |
3. Snapping Text Fails
| Reported by | Hans, Remik, 2001/2003 |
| Platform(s) | Linux 7.1, IRIX 6.5 |
| Status | Unresolved NAG informed, 11.25.2003 |
| Example Files | text2d.linux71.map, text2d.linux71.module.zip, text.irix65.map, text.irix65.module.zip |
| Description | |
| Snapping 2D text out of Render results in corrupted text that is completely illegible. The example creates a TIFF image that should contain the text. | |
4. Vertex Placement Error
| Reported by | Hans, Sept. 2001 |
| Platform(s) | Linux 7.1 |
| Status | Unresolved NAG informed, 11.25.2003 |
| Example Files | bad_vertex_placement.linux71.map, render_bad_binary.lat, render_good_ascii.lat |
| Description | |
| Some kind of vertex placement error occasionally occurs when rendering objects. This results in a regular pattern of artifacts over the object. It happens with Mesa as well as with real OpenGL. | |
5. No Blended Transparency for Packed ABGR Colors
| Reported by | Hans, Sept. 2001 |
| Platform(s) | IRIX 6.5 |
| Status | Unresolved NAG informed, 11.25.2003 |
| Example Files | blend_trans.linux71.map, blend_trans.irix65.map |
| Description | |
| Blended transparency doesn't work in the Render module when specifying packed ABGR colors; however, it does with a separate material node for transparency. The Linux example works correctly, but the artificial lattice in the IRIX example remains completely opaque. | |
6. Slider Widget Settings Inconsistent with Module Builder Design
| Reported by | Hans, Sept. 2001 |
| Platform(s) | Linux 7.1, IRIX 6.5 |
| Status | Pending NAG informed, 11.25.2003 |
| Example Files | sphere.module.zip |
| Description | |
| Slider widgets introduced in the Module Builder don't set to their designed default values. In the Sphere module example above, we would like all the sliders to default to 255. When these settings are Applied and Saved, the module still defaults all the sliders to the value 100. | |
7. Graphics Aren't Painted with ArenaSize Greater Than 64 Mb
| Reported by | Remik, Dec. 2003 |
| Platform(s) | Linux 7.1 |
| Status | Unresolved NAG informed, 12.10.2003 |
| Example Files | see Vertex Placement Error |
| Description | |
|
An arenasize of 64mb solves a vertex placement error, but any value greater
than 64 keeps IRIS from painting graphics. We use large datasets (gigabytes),
so 64 Mb will not suffice at the price of correcting vertex placement.
By default, we don't set the arenasize for our Linux ports. |
|
solutions to previous bugs
1. Font Limit on Text Objects
| Reported by | Hans, Sept. 2001 |
| Platform(s) | Linux 7.1, IRIX 6.5 |
| Status | Resolved 12.01.2003 |
| Example Files | text2d.linux71.map, text2d.linux71.module.zip, |
| Description | |
| Only the Times-Roman (or Utopian?) font seems to be usable for 2D and 3D text objects in the Linux version. In IRIX, it's only a limitation for 3D text objects. | |
| Solution | |
|
Fonts not installed by default should be
in the data/fonts directory of the installation CD.
The Explorer 4.0 CD did not contain these files. The 5.0 CD should contain them.
The OIV_PSFONT_PATH environment variable should also be set to point to the data/fonts directory. Fonts from IRIX may also be used for a Linux port. In that case, do setenv OIV_PSFONT_PATH /usr/lib/DPS/outline/base |
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