Quantcast
Jump to content
Search In
  • More options...
Find results that contain...
Find results in...
    1. Welcome to GTAForums!   (85,895 visits to this link)

    2. News

    1. GTA Online

      1. Find Lobbies & Players
      2. Guides & Strategies
      3. Vehicles
      4. Content Creator
      5. Help & Support
    2. Crews

      1. Events
      2. Recruitment
    1. Grand Theft Auto Series

    2. GTA Next

    3. GTA V

      1. PC
      2. Guides & Strategies
      3. Help & Support
    4. GTA IV

      1. Episodes from Liberty City
      2. Multiplayer
      3. Guides & Strategies
      4. Help & Support
      5. GTA Mods
    5. GTA Chinatown Wars

    6. GTA Vice City Stories

    7. GTA Liberty City Stories

    8. GTA San Andreas

      1. Guides & Strategies
      2. Help & Support
      3. GTA Mods
    9. GTA Vice City

      1. Guides & Strategies
      2. Help & Support
      3. GTA Mods
    10. GTA III

      1. Guides & Strategies
      2. Help & Support
      3. GTA Mods
    11. Top Down Games

      1. GTA Advance
      2. GTA 2
      3. GTA
    12. Wiki

      1. Merchandising
    1. GTA Modding

      1. GTA V
      2. GTA IV
      3. GTA III, VC & SA
      4. Tutorials
    2. Mod Showroom

      1. Scripts & Plugins
      2. Maps
      3. Total Conversions
      4. Vehicles
      5. Textures
      6. Characters
      7. Tools
      8. Other
      9. Workshop
    3. Featured Mods

      1. DYOM
      2. OpenIV
      3. GTA: Underground
      4. GTA: Liberty City
      5. GTA: State of Liberty
    1. Red Dead Redemption 2

    2. Red Dead Redemption

    3. Rockstar Games

    1. Off-Topic

      1. General Chat
      2. Gaming
      3. Technology
      4. Programming
      5. Movies & TV
      6. Music
      7. Sports
      8. Vehicles
    2. Expression

      1. Graphics / Visual Arts
      2. GFX Requests & Tutorials
      3. Writers' Discussion
      4. Debates & Discussion
    1. Forum Support

    2. Site Suggestions

Sign in to follow this  
pivke

LAe.ipl - Only LOD's?

Recommended Posts

pivke

Hello,

 

there is one question left for me, as I'm not able to understand it. So, generally looking at map files like LAe2.ipl, LAn.ipl or LAs.ipl, there are lines like this:

5105, Stordralas2, 0, 2543.460938, -2142.28125, 10.1953125, 0, 0, 0, 1, 99

As we know, this line says us, that you are going to find the LOD of this model at line "99". So far everything looks good.

 

But the only file that's making some headache to me, is "LAe.ipl", because there are only LOD-models. There is no "normal" model. Why? Can anyone tell me? When I'm going to render it with MEd, there are high-poly models and high-resolution textures. I'm a bit confused...

 

Thanks in advance to everyone trying to help me!

Share this post


Link to post
Share on other sites
LINK/2012

Most (if not all) IPL files in data/maps contains only LODs and basic placements, the actual non-LOD placements are in streamed IPLs, those are loaded on demand depending on the region of the game you are. They are stored in gta3.img and are named as scenename_streamN.ipl (e.g. lae_stream0.ipl).

When those streaming IPLs are loaded the placements are linked with the LODs in the non-streamed IPL... think about it as the appending ipl lines on demand.

 

MEd is capable of reading and basic editing of those streamed IPLs, for that reason you see the scene completely fine.

Those IPLs aren't in plain-text, but in a specific binary format (for faster loading) though I think you can store them as plain-text... and needs special programs if you want to decompile it, such as IPL Helper.

Share this post


Link to post
Share on other sites
pivke

Hey,

thanks for your answer!

 

So, for example, I've got this line in LAe.ipl:

5544, LODexaminerbuild02, 0, 1873.742188, -1682.476563, 34.796875, 0, 0, 0, 1, -1

From a view of a software developer, how do I know if this file is a LOD? And how do I know if there is an existing non-LOD model?

 

Maybe the solution is to just search for the given ID "5544" (for example) in the corresponding binary-ipl file?

Share this post


Link to post
Share on other sites
LINK/2012

From a view of a software developer, how do I know if this file is a LOD? And how do I know if there is an existing non-LOD model?

The game identifies a given entry is LOD only after a non-LOD entry gets linked to the LOD entry.

When the text IPL is being read, the game loads all binary IPLs related to this text IPL, so it can check out what is LOD, what is not, etc.

 

So you should do the same:

  • Open all binary IPLs related to LAe (i.e. lae_stream0.ipl, lae_stream1.ipl, lae_stream2.ipl, and so on)
  • Append the entries from those to the end of the entries of LAe.ipl (on the fly of course, don't modify LAe.ipl :p)
  • Parse all the entries (linking LODs and so on)
  • Now you know what is LOD and what is not

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×

Important Information

By using GTAForums.com, you agree to our Terms of Use and Privacy Policy.