bugfluxus - Bugs: bug #32180, texture diagonalisation

 
 

bug #32180: texture diagonalisation

Submitted by:  Kassen Oud <kassen>
Submitted on:  Wed 19 Jan 2011 05:41:50 PM UTC  
 
Category: NoneSeverity: 3 - Normal
Item Group: NoneStatus: Ready For Test
Privacy: PublicAssigned to: gabor papp <gabor_papp>
Open/Closed: Open

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Thu 20 Jan 2011 05:57:45 PM UTC, comment #2:

As a extra data-point I attached two files of identical (750x160) dimensions, of which terras1.png works and terras2.png glitches.

(file #22470, file #22471)

Kassen Oud <kassen>
Project Member
Wed 19 Jan 2011 06:17:47 PM UTC, comment #1:

it seems that texture width and height should be divisible by 4 on gpus capable of loading npot textures. otherwise power of 2 texture size might be required.

fluxus should display a warning or might scale the texture.

gabor papp <gabor_papp>
Project MemberIn charge of this item.
Wed 19 Jan 2011 05:41:50 PM UTC, original submission:

Some png images, when applied to primitives, will appear diagonal in the OpenGL scene. This is not a issue with a specific card as it was verified on both NVidea with binary blob drivers and on a laptop that lacks such a card and instead uses software rendering.

As this happens with some files generated by The Gimp and most by Photoshop it's also unlikely to be caused by a the image creation program.

The attached image should demonstrate this when applied as a texture to a (build-plane)

Kassen Oud <kassen>
Project Member

 

(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

Attach File(s):
   
   
Comment:
   

Attached Files
file #22470:  terras2.png added by kassen (9KiB - image/png)
file #22471:  terras1.png added by kassen (23KiB - image/png)
file #22457:  terras4.png added by kassen (353KiB - image/png)

 

Depends on the following items: None found

Items that depend on this one: None found

 

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  • -unavailable- added by gabor_papp (Posted a comment)
  • -unavailable- added by kassen (Submitted the item)
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    Follow 5 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Wed 02 Mar 2011 10:18:56 AM UTCgabor_pappStatusNone=>Ready For Test
      Assigned toNone=>gabor_papp
    Thu 20 Jan 2011 05:57:45 PM UTCkassenAttached File-=>Added terras2.png, #22470
      Attached File-=>Added terras1.png, #22471
    Wed 19 Jan 2011 05:41:50 PM UTCkassenAttached File-=>Added terras4.png, #22457

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