mirror of
https://github.com/Ttanasart-pt/Pixel-Composer.git
synced 2024-09-20 20:31:25 +02:00
303 lines
6.7 KiB
Plaintext
303 lines
6.7 KiB
Plaintext
function readObj_init(_scale = 1, _axis = false) {
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obj_reading = true;
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obj_read_progress = 0;
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obj_read_prog_sub = 0;
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obj_read_prog_tot = 3;
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obj_raw = noone;
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obj_reading_scale = _scale;
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obj_reading_axis = _axis;
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_VB = [];
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_VBT = [];
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_VBN = [];
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mats = [];
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matIndex = [];
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tris = [];
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mtlPath = "";
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use_material = false;
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use_normal = true;
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v = [];
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vt = [];
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vn = [];
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f = [];
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ft = [];
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fn = [];
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tri = 0;
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}
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function readObj_file() {
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var _time = current_time;
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while(!file_text_eof(obj_read_file)) { #region reading file
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var l = file_text_readln(obj_read_file);
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l = string_trim(l);
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var sep = string_split(l, " ", true);
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if(array_length(sep) == 0) continue;
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switch(sep[0]) {
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case "v" :
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switch(obj_reading_axis) {
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case 0 :
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array_push(v, [
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real(sep[1]) * obj_reading_scale,
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real(sep[2]) * obj_reading_scale,
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real(sep[3]) * obj_reading_scale,
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]);
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break;
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case 1 :
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array_push(v, [
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real(sep[1]) * obj_reading_scale,
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real(sep[3]) * obj_reading_scale,
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-real(sep[2]) * obj_reading_scale,
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]);
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break;
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case 2 :
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array_push(v, [
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real(sep[1]) * obj_reading_scale,
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-real(sep[3]) * obj_reading_scale,
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real(sep[2]) * obj_reading_scale,
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]);
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break;
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}
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break;
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case "vt" :
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var _u = real(sep[1]);
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var _v = real(sep[2]);
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array_push(vt, [ _u, _v ]);
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break;
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case "vn" :
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var _nx = real(sep[1]);
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var _ny = real(sep[2]);
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var _nz = real(sep[3]);
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array_push(vn, [ _nx, _ny, _nz ]);
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break;
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case "f" :
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var _len = array_length(sep);
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var _f = array_create(_len - 1);
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var _ft = array_create(_len - 1);
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var _fn = array_create(_len - 1);
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for( var i = 1; i < _len; i++ ) {
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var _sp = string_split(sep[i], "/");
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if(array_length(_sp) < 3) continue;
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_f[i - 1] = real(_sp[0]) - 1;
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_ft[i - 1] = real(_sp[1]) - 1;
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_fn[i - 1] = real(_sp[2]) - 1;
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use_normal = array_length(_sp) >= 4;
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}
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tri += _len - 2;
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array_push(f, _f ); //get position
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array_push(ft, _ft); //get texture map
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array_push(fn, _fn); //get normal
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break;
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case "usemtl" :
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use_material = true;
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var mname = "";
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for( var i = 1; i < array_length(sep); i++ )
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mname += (i == 1? "" : " ") + sep[i];
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mname = string_trim(mname);
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array_push_unique(mats, mname);
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array_push(matIndex, array_find(mats, mname));
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if(!array_empty(f)) {
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array_push(_VB, f);
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array_push(_VBT, ft);
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array_push(_VBN, fn);
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array_push(tris, tri);
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f = [];
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ft = [];
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fn = [];
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}
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tri = 0;
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break;
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case "mtllib" :
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mtlPath = "";
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for( var i = 1; i < array_length(sep); i++ )
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mtlPath += (i == 1? "" : " ") + sep[i];
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mtlPath = string_trim(mtlPath);
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break;
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case "o" :
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//print("Reading vertex group: " + sep[1])
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break;
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}
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if(current_time - _time > 30) return;
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} #endregion
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if(!array_empty(f)) {
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array_push(_VB, f);
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array_push(_VBT, ft);
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array_push(_VBN, fn);
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array_push(tris, tri);
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}
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file_text_close(obj_read_file);
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if(use_normal) vn[0] = [ 0, 0, 0 ];
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obj_read_progress = 1;
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obj_read_prog_sub = 0;
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}
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function readObj_cent() {
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#region centralize vertex
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var _v0 = v[0];
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var _bminx = _v0[0];
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var _bminy = _v0[1];
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var _bminz = _v0[2];
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var _bmaxx = _v0[0];
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var _bmaxy = _v0[1];
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var _bmaxz = _v0[2];
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var cvx = 0;
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var cvy = 0;
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var cvz = 0;
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vertex = array_length(v);
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for( var i = 0; i < vertex; i++ ) {
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var _v = v[i];
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var _v0 = _v[0];
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var _v1 = _v[1];
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var _v2 = _v[2];
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cvx += _v0;
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cvy += _v1;
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cvz += _v2;
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_bminx = min(_bminx, _v0);
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_bminy = min(_bminy, _v1);
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_bminz = min(_bminz, _v2);
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_bmaxx = max(_bmaxx, _v0);
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_bmaxy = max(_bmaxy, _v1);
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_bmaxz = max(_bmaxz, _v2);
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}
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cvx /= vertex;
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cvy /= vertex;
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cvz /= vertex;
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obj_size = new __vec3(
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_bmaxx - _bminx,
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_bmaxy - _bminy,
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_bmaxz - _bminz,
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);
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for( var i = 0; i < vertex; i++ ) {
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var _v = v[i];
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_v[0] = _v[0] - cvx;
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_v[1] = _v[1] - cvy;
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_v[2] = _v[2] - cvz;
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}
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#endregion
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obj_read_progress = 2;
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obj_read_prog_sub = 0;
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}
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function readObj_buff() {
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#region vertex buffer creation
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var _vblen = array_length(_VB);
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var VBS = array_create(_vblen);
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var V = array_create(_vblen);
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for(var i = 0; i < _vblen; i++) {
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var VB = vertex_create_buffer();
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vertex_begin(VB, global.VF_POS_NORM_TEX_COL);
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var face = _VB[i];
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var facet = _VBT[i];
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var facen = _VBN[i];
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var _flen = array_length(face);
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var _v = [];
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for(var j = 0; j < _flen; j++) {
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var _f = face[j];
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var _ft = facet[j];
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var _fn = facen[j];
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var _vlen = array_length(_f);
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var _pf = array_create(_vlen);
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var _pft = array_create(_vlen);
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var _pfn = array_create(_vlen);
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for( var k = 0; k < _vlen; k++ ) {
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_pf[k] = v[_f[k]];
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_pfn[k] = vn[_fn[k]];
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_pft[k] = vt[_ft[k]];
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}
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var _pf0 = _pf[0], _pf1 = _pf[1], _pf2 = _pf[2];
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var _pfn0 = _pfn[0], _pfn1 = _pfn[1], _pfn2 = _pfn[2];
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var _pft0 = _pft[0], _pft1 = _pft[1], _pft2 = _pft[2];
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// if(_vlen >= 3) {
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vertex_add_pntc(VB, _pf0, _pfn0, _pft0);
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vertex_add_pntc(VB, _pf2, _pfn2, _pft2);
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vertex_add_pntc(VB, _pf1, _pfn1, _pft1);
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array_push(_v, new __vertex(_pf0[0], _pf0[1], _pf0[2]).setNormal(_pfn0[0], _pfn0[1]).setUV(_pft0[0], _pft0[1]));
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array_push(_v, new __vertex(_pf2[0], _pf2[1], _pf2[2]).setNormal(_pfn2[0], _pfn2[1]).setUV(_pft2[0], _pft2[1]));
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array_push(_v, new __vertex(_pf1[0], _pf1[1], _pf1[2]).setNormal(_pfn1[0], _pfn1[1]).setUV(_pft1[0], _pft1[1]));
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// }
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if(_vlen >= 4) {
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var _pf3 = _pf[3];
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var _pfn3 = _pfn[3];
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var _pft3 = _pft[3];
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vertex_add_pntc(VB, _pf0, _pfn0, _pft0);
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vertex_add_pntc(VB, _pf3, _pfn3, _pft3);
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vertex_add_pntc(VB, _pf2, _pfn2, _pft2);
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array_push(_v, new __vertex(_pf0[0], _pf0[1], _pf0[2]).setNormal(_pfn0[0], _pfn0[1]).setUV(_pft0[0], _pft0[1]));
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array_push(_v, new __vertex(_pf3[0], _pf3[1], _pf3[2]).setNormal(_pfn3[0], _pfn3[1]).setUV(_pft3[0], _pft3[1]));
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array_push(_v, new __vertex(_pf2[0], _pf2[1], _pf2[2]).setNormal(_pfn2[0], _pfn2[1]).setUV(_pft2[0], _pft2[1]));
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}
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}
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vertex_end(VB);
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VBS[i] = VB;
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V[i] = _v;
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}
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#endregion
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obj_read_progress = 3;
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obj_read_prog_sub = 0;
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obj_raw = {
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vertex: V,
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vertex_count: vertex,
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vertex_groups: VBS,
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object_counts: _vblen,
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use_material: use_material,
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materials: mats,
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material_index: matIndex,
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use_normal: use_normal,
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mtl_path: mtlPath,
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model_size: obj_size,
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};
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} |