mirror of
https://github.com/Ttanasart-pt/Pixel-Composer.git
synced 2024-11-14 14:33:53 +01:00
283 lines
6.9 KiB
Plaintext
283 lines
6.9 KiB
Plaintext
function readObj_init() {
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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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_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_normal = true;
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v = ds_list_create();
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vt = ds_list_create();
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vn = ds_list_create();
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f = ds_list_create();
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ft = ds_list_create();
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fn = ds_list_create();
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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, " ");
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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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ds_list_add(v, [ toNumber(sep[1]), toNumber(sep[2]), toNumber(sep[3]) ]);
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break;
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case "vt" :
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var _u = toNumber(sep[1]);
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var _v = toNumber(sep[2]);
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ds_list_add(vt, [ _u, _v ]);
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break;
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case "vn" :
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var _nx = toNumber(sep[1]);
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var _ny = toNumber(sep[2]);
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var _nz = toNumber(sep[3]);
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//var _di = sqrt(_nx * _nx + _ny * _ny + _nz * _nz);
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//_nx /= _di;
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//_ny /= _di;
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//_nz /= _di;
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ds_list_add(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] = toNumber(_sp[0]);
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_ft[i - 1] = toNumber(_sp[1]);
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_fn[i - 1] = toNumber(_sp[2]);
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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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ds_list_add(f, _f ); //get position
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ds_list_add(ft, _ft); //get texture map
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ds_list_add(fn, _fn); //get normal
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break;
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case "usemtl" :
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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(!ds_list_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 = ds_list_create();
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ft = ds_list_create();
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fn = ds_list_create();
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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(!ds_list_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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//var txt = "OBJ summary";
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//txt += $"\n\tVerticies : {ds_list_size(v)}";
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//txt += $"\n\tTexture Verticies : {ds_list_size(vt)}";
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//txt += $"\n\tNormal Verticies : {ds_list_size(vn)}";
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//txt += $"\n\tVertex groups : {array_length(_VB)}";
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//txt += $"\n\tTriangles : {tris}";
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//print(txt);
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}
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function readObj_cent() {
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#region centralize vertex
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_bmin = v[| 0];
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_bmax = v[| 0];
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cv = [0, 0, 0];
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vertex = ds_list_size(v);
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for( var i = 0; i < vertex; i++ ) {
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var _v = v[| i];
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cv[0] += _v[0];
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cv[1] += _v[1];
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cv[2] += _v[2];
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_bmin = [
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min(_bmin[0], _v[0]),
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min(_bmin[1], _v[1]),
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min(_bmin[2], _v[2]),
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];
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_bmax = [
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max(_bmax[0], _v[0]),
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max(_bmax[1], _v[1]),
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max(_bmax[2], _v[2]),
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];
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}
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cv[0] /= vertex;
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cv[1] /= vertex;
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cv[2] /= vertex;
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obj_size = new __vec3(
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_bmax[0] - _bmin[0],
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_bmax[1] - _bmin[1],
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_bmax[2] - _bmin[2],
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);
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var sc = 1;
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//var span = max(abs(_size.x), abs(_size.y), abs(_size.z));
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//if(span > 10) sc = span / 10;
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for( var i = 0, n = ds_list_size(v); i < n; i++ ) {
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v[| i][0] = (v[| i][0] - cv[0]) / sc;
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v[| i][1] = (v[| i][1] - cv[1]) / sc;
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v[| i][2] = (v[| i][2] - cv[2]) / sc;
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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 = ds_list_size(face);
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var _v = ds_list_create();
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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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var _vPindex = _f[k] - 1;
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_pf[k] = v[| _vPindex];
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var _vNindex = _fn[k] - 1;
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_pfn[k] = vn[| _vNindex];
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var _vTindex = _ft[k] - 1;
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_pft[k] = vt[| _vTindex];
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}
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if(_vlen >= 3) {
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vertex_add_pntc(VB, _pf[0], _pfn[0], _pft[0]);
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vertex_add_pntc(VB, _pf[2], _pfn[2], _pft[2]);
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vertex_add_pntc(VB, _pf[1], _pfn[1], _pft[1]);
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ds_list_add(_v, new __vertex(_pf[0][0], _pf[0][1], _pf[0][2]).setNormal(_pfn[0][0], _pfn[0][1]).setUV(_pft[0][0], _pft[0][1]));
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ds_list_add(_v, new __vertex(_pf[2][0], _pf[2][1], _pf[2][2]).setNormal(_pfn[2][0], _pfn[2][1]).setUV(_pft[2][0], _pft[2][1]));
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ds_list_add(_v, new __vertex(_pf[1][0], _pf[1][1], _pf[1][2]).setNormal(_pfn[1][0], _pfn[1][1]).setUV(_pft[1][0], _pft[1][1]));
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}
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if(_vlen >= 4) {
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vertex_add_pntc(VB, _pf[0], _pfn[0], _pft[0]);
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vertex_add_pntc(VB, _pf[3], _pfn[3], _pft[3]);
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vertex_add_pntc(VB, _pf[2], _pfn[2], _pft[2]);
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ds_list_add(_v, new __vertex(_pf[0][0], _pf[0][1], _pf[0][2]).setNormal(_pfn[0][0], _pfn[0][1]).setUV(_pft[0][0], _pft[0][1]));
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ds_list_add(_v, new __vertex(_pf[3][0], _pf[3][1], _pf[3][2]).setNormal(_pfn[3][0], _pfn[3][1]).setUV(_pft[3][0], _pft[3][1]));
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ds_list_add(_v, new __vertex(_pf[2][0], _pf[2][1], _pf[2][2]).setNormal(_pfn[2][0], _pfn[2][1]).setUV(_pft[2][0], _pft[2][1]));
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}
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}
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vertex_end(VB);
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vertex_freeze(VB);
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VBS[i] = VB;
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V[i] = ds_list_to_array(_v);
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ds_list_destroy(_v);
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}
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#endregion
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#region clean
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array_foreach(_VB, function(val, ind) { ds_list_destroy(val); });
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array_foreach(_VBT, function(val, ind) { ds_list_destroy(val); });
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array_foreach(_VBN, function(val, ind) { ds_list_destroy(val); });
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ds_list_destroy(v);
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ds_list_destroy(vn);
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ds_list_destroy(vt);
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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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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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} |