Homebrew Anyone knows how this header file was created?

YugamiSekai · Oct 10, 2016

In the 3DS homebrew example "loop_subdivision" there's a file which has the coordinates of a OBJ file:

Code:

static const vertex vertex_list[] =
{
    /*0*/ FACE(0.500000, 0.000000, -0.500000, 1.000000, 0.000000, 7),
    /*1*/ FACE(0.500000, 1.000000, 0.500000, 0.000000, 1.000000, 6),
    /*2*/ FACE(0.500000, 0.000000, 0.500000, 0.000000, 0.000000, 3),
    /*3*/ FACE(0.500000, 1.000000, 0.000000, 0.500000, 1.000000, 7),
    /*4*/ FACE(0.500000, 1.000000, -0.500000, 1.000000, 1.000000, 4),
    /*5*/ FACE(0.500000, 0.000000, -0.500000, 0.000000, 0.000000, 7),
    /*6*/ FACE(-0.500000, 1.000000, -0.500000, 1.000000, 1.000000, 5),
    /*7*/ FACE(0.500000, 1.000000, -0.500000, 0.000000, 1.000000, 4),
    /*8*/ FACE(-0.500000, 0.000000, -0.500000, 1.000000, 0.000000, 4),
    /*9*/ FACE(0.500000, 0.000000, -0.500000, 0.000000, 0.000000, 7),
    /*10*/ FACE(-0.500000, 0.000000, 0.500000, 1.000000, 1.000000, 6),
    /*11*/ FACE(-0.500000, 0.000000, -0.500000, 0.000000, 1.000000, 4),
    /*12*/ FACE(0.500000, 0.000000, 0.500000, 1.000000, 0.000000, 3),
    /*13*/ FACE(0.500000, 1.000000, 0.500000, 1.000000, 1.000000, 6),
    /*14*/ FACE(-0.500000, 0.000000, 0.500000, 0.000000, 0.000000, 6),
    /*15*/ FACE(0.500000, 0.000000, 0.500000, 1.000000, 0.000000, 3),
    /*16*/ FACE(-0.500000, 1.000000, 0.500000, 0.000000, 1.000000, 4),
    /*17*/ FACE(0.000000, 1.000000, 0.500000, 0.500000, 1.000000, 5),
    /*18*/ FACE(0.500000, 1.000000, 0.000000, -0.500000, -1.000000, 7),
    /*19*/ FACE(0.000000, 1.000000, 0.500000, -1.000000, -0.500000, 5),
    /*20*/ FACE(0.500000, 1.000000, 0.500000, -1.000000, -1.000000, 6),
    /*21*/ FACE(0.500000, 1.000000, 0.000000, -0.292893, 1.000000, 7),
    /*22*/ FACE(0.250000, 2.000000, 0.250000, -0.646447, 2.000000, 6),
    /*23*/ FACE(0.000000, 1.000000, 0.500000, -1.000000, 1.000000, 5),
    /*24*/ FACE(0.500000, 2.000000, -0.500000, 1.168140, 2.007650, 5),
    /*25*/ FACE(0.250000, 2.000000, 0.250000, 0.377571, 2.007650, 6),
    /*26*/ FACE(0.500000, 1.000000, 0.000000, 0.693799, 0.995223, 7),
    /*27*/ FACE(0.500000, 3.000000, -0.500000, 0.790569, 3.000000, 3),
    /*28*/ FACE(0.250000, 2.000000, 0.250000, 0.000000, 2.000000, 6),
    /*29*/ FACE(0.500000, 2.000000, -0.500000, 0.790569, 2.000000, 5),
    /*30*/ FACE(0.500000, 3.000000, -0.500000, -0.646447, 2.224740, 3),
    /*31*/ FACE(-0.250000, 2.000000, -0.250000, -1.000000, 1.000000, 5),
    /*32*/ FACE(0.250000, 2.000000, 0.250000, -0.292893, 1.000000, 6),
    /*33*/ FACE(0.500000, 3.000000, -0.500000, -1.790570, 3.000000, 3),
    /*34*/ FACE(0.500000, 2.000000, -0.500000, -1.790570, 2.000000, 5),
    /*35*/ FACE(-0.250000, 2.000000, -0.250000, -1.000000, 2.000000, 5),
    /*36*/ FACE(0.500000, 2.000000, -0.500000, -0.746753, 2.015790, 5),
    /*37*/ FACE(0.000000, 1.000000, -0.500000, -0.272411, 1.003370, 6),
    /*38*/ FACE(-0.250000, 2.000000, -0.250000, 0.043816, 2.015790, 5),
    /*39*/ FACE(0.000000, 1.000000, -0.500000, 0.707107, 1.000000, 6),
    /*40*/ FACE(0.500000, 2.000000, -0.500000, 0.353553, 2.060660, 5),
    /*41*/ FACE(0.500000, 1.000000, 0.000000, 0.000000, 1.000000, 7),
    /*42*/ FACE(0.500000, 1.000000, 0.000000, 0.500000, -1.000000, 7),
    /*43*/ FACE(0.500000, 1.000000, -0.500000, 1.000000, -1.000000, 4),
    /*44*/ FACE(0.000000, 1.000000, -0.500000, 1.000000, -0.500000, 6),
    /*45*/ FACE(0.000000, 1.000000, -0.500000, 0.500000, 1.000000, 6),
    /*46*/ FACE(0.000000, 1.000000, -0.500000, 1.000000, 0.500000, 6),
    /*47*/ FACE(-0.500000, 1.000000, 0.000000, 0.500000, 1.000000, 8),
    /*48*/ FACE(-0.500000, 0.000000, -0.500000, 0.000000, 0.000000, 4),
    /*49*/ FACE(-0.500000, 1.000000, -0.500000, 0.000000, 1.000000, 5),
    /*50*/ FACE(-0.500000, 0.000000, 0.500000, 1.000000, 0.000000, 6),
    /*51*/ FACE(-0.500000, 1.000000, 0.500000, 1.000000, 1.000000, 4),
    /*52*/ FACE(0.000000, 1.000000, 0.500000, -1.000000, 0.500000, 5),
    /*53*/ FACE(-0.500000, 1.000000, 0.000000, -0.500000, 1.000000, 8),
    /*54*/ FACE(-0.500000, 1.000000, 0.500000, -1.000000, 1.000000, 4),
    /*55*/ FACE(0.250000, 2.000000, 0.250000, 0.353553, 1.885620, 6),
    /*56*/ FACE(-0.500000, 1.000000, 0.000000, -0.353553, 0.824958, 8),
    /*57*/ FACE(0.000000, 1.000000, 0.500000, 0.353553, 0.824958, 5),
    /*58*/ FACE(-0.250000, 2.000000, -0.250000, -0.353553, 1.885620, 5),
    /*59*/ FACE(0.000000, 1.000000, -0.500000, -1.707110, 1.000000, 6),
    /*60*/ FACE(-0.500000, 1.000000, 0.000000, -1.000000, 1.000000, 8),
    /*61*/ FACE(-0.250000, 2.000000, -0.250000, -1.353550, 2.000000, 5),
};

static const s16 index_list[] =
{
    22, /**/ 0, 1, 2, /**/ 17,3,4,1,2,6,8,10, /**/ 0,10,16,0,2,3,17, /**/ 8,10,1,0,
    26, /**/ 1, 0, 3, /**/ 10,2,10,0,3,16,17, /**/ 37,4,6,1,2,3,8,10, /**/ 16,17,22,0,1,4,24,37,
    24, /**/ 3, 0, 4, /**/ 2,1,17,0,4,22,24,37, /**/ 37,6,8,1,2,3,4,10, /**/ 24,37,6,0,3,
    22, /**/ 5, 6, 7, /**/ 47,8,10,1,2,3,4,6, /**/ 3,37,47,0,4,8, /**/ 1,3,37,0,6,
    22, /**/ 6, 5, 8, /**/ 3,4,37,0,8,47, /**/ 47,10,2,1,3,4,6,8, /**/ 37,47,10,0,6,
    23, /**/ 9, 10, 11, /**/ 1,2,1,3,4,6,8,10, /**/ 6,47,16,0,1,2,8, /**/ 4,6,47,0,10,
    22, /**/ 10, 9, 12, /**/ 6,8,47,0,1,2,16, /**/ 10,1,3,2,4,6,8,10, /**/ 16,1,0,10,
    21, /**/ 13, 14, 15, /**/ 47,16,17,0,2,3,10, /**/ 1,0,8,1,2,16,47, /**/ 3,0,10,1,
    22, /**/ 14, 13, 16, /**/ 0,2,0,1,8,16,47, /**/ 47,17,3,0,2,10,16, /**/ 8,47,17,1,10,
    21, /**/ 16, 13, 17, /**/ 2,10,47,1,17, /**/ 22,3,0,2,10,16,17, /**/ 10,47,22,1,3,16,
    24, /**/ 18, 19, 20, /**/ 47,22,24,0,1,4,17,37, /**/ 10,16,47,1,3,22, /**/ 4,0,2,3,10,16,17,
    24, /**/ 21, 22, 23, /**/ 27,24,37,0,1,4,17,22, /**/ 16,47,31,3,17,24,27, /**/ 0,1,16,3,22,47,
    24, /**/ 24, 25, 26, /**/ 31,27,31,3,22,37, /**/ 1,17,47,3,24,27,31, /**/ 31,37,4,0,1,17,22,24,
    20, /**/ 27, 28, 29, /**/ 47,31,24,22, /**/ 37,3,17,24,27,31,47, /**/ 22,31,37,3,22,27,
    20, /**/ 30, 31, 32, /**/ 37,24,22,31, /**/ 17,47,37,22,24,27, /**/ 31,24,3,17,27,31,47,
    19, /**/ 33, 34, 35, /**/ 3,22,31,24, /**/ 47,37,3,22,27,31, /**/ 24,22,47,24,27,37,
    22, /**/ 36, 37, 38, /**/ 4,3,22,27,31,37, /**/ 22,47,6,3,4,24,31, /**/ 22,27,22,24,37,47,
    24, /**/ 39, 40, 41, /**/ 27,31,47,3,4,6,24, /**/ 17,22,27,3,31,37, /**/ 6,4,0,1,17,22,24,37,
    23, /**/ 42, 43, 44, /**/ 6,0,1,4,17,22,24,37, /**/ 47,6,0,3,37, /**/ 22,24,31,3,4,6,47,
    21, /**/ 7, 6, 45, /**/ 8,0,3,6,37, /**/ 31,47,8,0,4,37, /**/ 0,3,24,4,6,31,47,
    25, /**/ 46, 6, 47, /**/ 0,4,3,6,24,31,47, /**/ 10,8,0,4,37,47, /**/ 24,31,22,6,8,10,16,17,37,
    23, /**/ 48, 47, 49, /**/ 16,10,0,6,47, /**/ 4,37,31,6,8,10,16,17,22, /**/ 10,0,4,8,37,47,
    24, /**/ 50, 47, 48, /**/ 17,16,1,0,2,8,47, /**/ 0,6,37,8,10,16,17,22,31, /**/ 2,0,6,10,47,
    24, /**/ 47, 50, 51, /**/ 0,8,6,10,16,17,22,31,37, /**/ 17,1,2,0,8,16,47, /**/ 22,17,1,10,47,
    23, /**/ 52, 53, 54, /**/ 31,22,3,1,16,47, /**/ 1,10,8,6,16,17,22,31,37, /**/ 3,1,10,17,47,
    25, /**/ 55, 56, 57, /**/ 37,31,27,3,17,24,47, /**/ 1,16,10,6,8,17,22,31,37, /**/ 24,3,1,16,22,47,
    25, /**/ 56, 55, 58, /**/ 3,17,16,6,8,10,22,31,37, /**/ 24,27,24,3,17,31,47, /**/ 6,37,24,22,27,47,
    25, /**/ 59, 60, 61, /**/ 8,6,4,3,24,31,47, /**/ 27,22,17,6,8,10,16,31,37, /**/ 3,24,27,22,37,47,
};

Does anyone know how I can use this on another model?

Deleted User · Oct 10, 2016

YugamiSekai · Oct 10, 2016

_catcatcat said:
Unlikely, at first guess this seems hardcoded to me, or if a tool was used to generate it, it's not publicly available (I could be wrong, maybe smea or the designer of the examples has such a thing lying around somewhere)

If you want to use another model with this kind of format, you'll want to figure out what the FACE( ... ) macro means, and how to parse an OBJ file to match this format (OBJ parsing tutorials are common online) and write a similar parser yourself. Or, what is probably better off for you to do, is figure out how the example utilizes that data, so you could create an entirely different format and parser.

The face macro is defined in the main source file.

Homebrew Anyone knows how this header file was created?

Mr. Picross

Deleted User

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Mr. Picross

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