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JustinRoad

Latest Posts

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Posted in: Psychonauts .PKG File Format Specs
  JustinRoad
07-22-2005, 2:49 AM
#37
Just to let you know that I won't be able to look at those files for a while. I am in crunch mode at work at the moment. If only you'd posted them earlier :)...  [Read More]
Posted in: Psychonauts .PKG File Format Specs
  JustinRoad
07-19-2005, 2:46 AM
#31
I downloaded the PC demo of Psychonauts and played through it a couple of times and I'm pretty sure it uses bumpmapping. Which means if it compresses these normalmaps there is a good chance that they use one of the 2 major normalmap compression schem...  [Read More]
Posted in: Psychonauts .PKG File Format Specs
  JustinRoad
07-18-2005, 5:01 AM
#27
When performing my own file writes I usually just use a static global structure to write the header out. eg. (C++ code) char gacDDSSignature[] = {'D', 'D', 'S', ' '}; DDSURFACEDESC2 gsDDSHeader = { 0, // dwFlags 0, // dwWidth ... .. etc.. } EBoo...  [Read More]
Posted in: Psychonauts .PKG File Format Specs
  JustinRoad
07-17-2005, 3:53 AM
#24
As far as I can figure out, it is a paletted image. The breakdown is as follows: at 0x007e in the file is a 16 bit number. Not sure if this specifies whether there is a palette or not. In the data you gave me this is 0x0001. at 0x0080 is where th...  [Read More]
Posted in: Psychonauts .PKG File Format Specs
  JustinRoad
07-15-2005, 1:54 AM
#20
thank you for all your help. You're welcome. It's kewl what you're doing. Keep it up :) textures\fxtextures\flames\flickera_00.dds 64*64 actual size=60836 I have a suspicion that this format is an 'animated' format - meaning there are several f...  [Read More]
Posted in: Psychonauts .PKG File Format Specs
  JustinRoad
07-14-2005, 11:27 AM
#17
Well, I'm fairly certain it's min(x,y) :) For example: The only possible mipmaps on 512x128 are: 512x128 256x64 128x32 64x16 32x8 16x4 8x2 4x1 There are 8 of them. If you were to use max(512,128) your function will return 10, which is incorrect in...  [Read More]
Posted in: Psychonauts .PKG File Format Specs
  JustinRoad
07-14-2005, 11:08 AM
#15
Okay, LogBase2 is pretty much what your 'if' statement does, but it does it in a pure 'mathematical' way. If you know anything about logarithms, you can use the natural log: eg. LogBase2(x) = Log(x) / Log(2); Your version will work okay for cases w...  [Read More]
Posted in: Psychonauts .PKG File Format Specs
  JustinRoad
07-14-2005, 10:42 AM
#13
12 bytes is very close, I know. I made a bit of an oopsie in my additions. The 12 bytes is non-existant. The mip size is spot on! (I edited my post to reflect the changes :D) wouldnt expect lightmap002 to have 4 mipmaps, I'd expect 5 really, so i...  [Read More]
Posted in: Psychonauts .PKG File Format Specs
  JustinRoad
07-14-2005, 9:11 AM
#9
Actual size = 174760 Size that tool gives - 131072 I don't actually own psychonauts and haven't looked at the data in question, but I'm a console programmer and this kinda thing really interests me :) Even though the DDS doesn't report any mipmaps...  [Read More]
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