Acura Mobile Racing Game .json .ktx

[zimex25]

Hi! I extracted files from Acura Mobile Racing Game, 3d models in .json, textures in .ktx. I looking converter from json to obj but I didn't find. Textrures can't open using PVRTexTool.
Here is all files of this game: https://mega.nz/#!GkF12a6b!yOftbmzcS9kl ... yYVhUnSZTU

[shakotay2]

wheel and arx body:
.

wheel.png

Some preparations required: remove "position": [, ']' etc from the json file, replace commas by blanks
then conversion to .obj is simple in case you can code (stream1: input file, .json; stream: output file: .obj):

Code: Select all

float x, y, z ;
FILE *stream, *stream1 ;
    [...]
    while (fscanf( stream1, "%f", &x) != EOF) {
	fscanf( stream1, "%f %f", &y, &z) ;
	fprintf(stream, "v %f %f %f\n", x*10.0,y*10.0,z*10.0) ;
    }
    [...]

(Added automatic created face indices to the obj file.)
Files need to be opened/closed, of course.

[zimex25]

wheel and arx body:
.
wheel.png
Some preparations required: remove "position": [, ']' etc from the json file, replace commas by blanks
then conversion to .obj is simple in case you can code (stream1: input file, .json; stream: output file: .obj):

Code: Select all

float x, y, z ;
FILE *stream1, *stream1 ;
    [...]
    while (fscanf( stream1, "%f", &x) != EOF) {
	fscanf( stream1, "%f %f", &y, &z) ;
	fprintf(stream, "v %f %f %f\n", x*10.0,y*10.0,z*10.0) ;
    }
    [...]

(Added automatic created face indices to the obj file.)
Files need to be opened/closed, of course.

Probably I'm stupid but where I need replace all "," or ['] to blanks and what next? I need past this code?

[shakotay2]

You need to be a coder to understand what to do. (The replacement of commas by blanks has to be done in the .json file.)

[reh]

Maybe this will help:

delete-bms.zip

It contains three bms scripts for use with Quickbms.
The first "delete-1.bms" script deletes "{.." position ": [ ";
The second script "delete-2.bms" replaces "," with "white space";
The last script "delete-3.bms" should delete " ].} ", But it is not working, I recommend deleting it manually, from what I saw, it only appears at the end of the file.
When you run the scripts with quickbms and see "the following output file already exists: ..." press "y" and "enter" to replace the file or "r" to rename it automatically.

[shakotay2]

There's some ], and I'd suggest to split the json.
Load it into notepad (whatever), replace all commas by blanks
and save the block up to "uv": [ as vertices.txt.
Then save the the block behind "uv": [ up to "normal": [ as uvs.txt.
(Be sure not to have any [, ] or : in them. Also don't leave the strings "uv" and "normal".)
Copy those .txt files into the folder where json2obj.exe resides and start it.

I've appended a codeblocks project json2obj with a 9kB exe and source code.
.

json2obj.zip

[shakotay2]

old_nsx.png

.
Important:No commas allowed in vertices.txt and uvs.txt. The exe will produces a giga bytes file otherwise!
.
Don't forget to "remove doubles" in blender for example. There's plenty of them.

Try out submeshes and look how the devs built the meshes:

Code: Select all

void lin_faceind_3(FILE *stream, DWORD cnt)
{
	DWORD i, sm=0 ;			//

	for (i=1; i< (cnt - 3);i++) {	    
        	if ( (i%2000) ==0) {
            		fprintf( stream, "g sm_%d\n", sm) ; sm++ ;
        	}		
        	fprintf( stream, "f %ld/%ld %ld/%ld %ld/%ld\n", i,i, i+1,i+1, i+2,i+2) ;
		i += 2 ;
	}
}