source: Swollen/doc/contract2_priorities.txt @ 1697

PRIORITIES FOR SECOND CONTRACT

Priorities are in the range [0,5] with 5 being the highest and 0 the lowest.



ACCEPTED:

- Wireframe toggle for water surface only, 'w' key [4]
- Reference horizon (possibly sky) as visual aid to orient scene [5]
- Use per-vertex normals for reflection of light [4]
- Correct scaling and origin for datasets not centered at (0,0)? [3]
- Texture mapped topography (currently fixed as bedslope.jpg) [4]
- Movement restricted to within bounding sphere (sky now stays at fixed distance 
  from camera) [1]
- Ability to remove light source (it's in the way sometimes) (removed totally) [2]  
- Duncan and Ole able to compile Swollen from source under Windows/Visual Studio .NET [3]
- z-scaling to emphasize vertical details (via -scale command line parameter) [1] 
- added -nosky command-line option to appease those who want a plain background [?]
- add -version command line flag synced with Subversion revision number (useful for debugging) [?]
- Ability to automatically produce distro (win32) [4]
- Culling of triangles ('c' key to cycle through culling states) [5] (Still there 20/1/5?)
- Ability to have shading on bed-surface in the absence of texture
- add back steep culling ability [4]
- Ability to handle scenes with a resolution of 500,000+ triangles [3]


ACCEPTED IN PRINCIPLE (STILL NEED TO BE VERIFIED):

- Compilation under Mac [1]
- Ability to compile from arbitrary location (e.g. using environment variables) [4]
- Texture mapped water surface [2] (Not the same as the reflection?)
- use of geotiff in sww file [5]
  Question, does swollen read georeferencing from within tif?  


COMPLETED:

- Optional height-dependent semi-transparent water surface [0]
- Interactive positioning of light(s) [0]
- fix popping on shallow triangles [5]
- Output coordinates defining camera position [?]
- Start up with a view sight from above rather than from the side [2]
- Command line parameters for culling, speed [1]
- Ability to output frames in a common image format for making standalone animation [5]


  
UNDER DEVELOPMENT:



BUG LIST (status of these?)

- steepcull dataset reveals steep angle cull problem
- Problems with Duncan's, Chris' and Stephen Roberts' machines at GA: Swollen won't render semi 
  transparency. Swwviewer works fine. (This appeared to work on Dunca's computer 13/12/4?).
  (It seems to be a problem with older cards - don't worry) 
- with -scale, rotation seems unnatural (and initial position shifted vertically?)



BUGS FIXED:

- --help not working, -h giving an "abort trap"
- culling
- toggle wireframe not working on Mac
- can no longer make model disappear by pushing back through sky [2004-12-15]
- Swollen starts up showing first time step, not zeroth (even though clock shows zero). Stepping one 
  forward and one back, bring things into sync. [2004-12-01]
- nonuniform scaling into unit cube should be uniform [2004-12-01]
- onscreen text no longer obscured by zoomed model
- removed lighting from onscreen text, now constant colour
- memory leak occurring when loading subsequent stages fixed by use 
  of ref_ptrs in SWWReader
- dragging sww onto swollen (all in one directory) does not produce the same results as 
  calling from command line


  
  

--------------------------------------------------

APPEARANCE:

- Scene augmentation with OSG models [2]        
- Optional contour lines of water surface [1]

        
FUNCTIONALITY:

- Optional colour coding of water surface based on arbitrary fields 
  (e.g. stage, speed, momentum, ..) [4]
- Ability to read from file as it is being produced (like tail -f) [2]
- Input camera position to give desired view [3]
- key binding 'h' for home camera position (return to home view) [2]
- key binding 't' for top camera position (go to orthographic view) [1]
- Ability to show earthquakes [0]
- Concept of 'buildings' and shaking them [0]
- user feedback should differentiate between "sww file not found" and
  "sww file couldn't read" [1]
- prune -help documentation removing irrelevant options [?]


OPTIMIZATION:

- Scene optimization via geometry and texture level-of-detail (LOD) [3]
- Separate thread for loading a ring buffer of stage data [1]


COMPILATION:

- Ability to automatically produce distro (linux) [4]
- Compilation under Linux [3]
- Ability to compile using gnu gcc/g++ [3]


OTHER:

- Brief documentation of interface [4]
- Revisit use of culling steep epsilon [3]      
- SWW netcdf meta information [0]