luboslenco
96 lines
3.0 KiB
TypeScript
96 lines
3.0 KiB
TypeScript
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function export_obj_write_string(out: i32[], str: string) {
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for (let i = 0; i < str.length; ++i) {
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out.push(str.charCodeAt(i));
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}
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}
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function export_obj_run(path: string, paint_objects: mesh_object_t[], apply_displacement = false) {
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let o: i32[] = [];
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export_obj_write_string(o, "# armorsculpt.org\n");
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let texpaint = project_layers[0].texpaint;
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let pixels = image_get_pixels(texpaint);
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let pixelsView = new DataView(pixels);
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let mesh = paint_objects[0].data;
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let inda = mesh.index_arrays[0].values;
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let posa = new Int16Array(inda.length * 4);
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for (let i = 0; i < inda.length; ++i) {
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let index = inda[i];
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posa[index * 4 ] = math_floor(pixelsView.getFloat32(i * 16 , true) * 32767);
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posa[index * 4 + 1] = math_floor(pixelsView.getFloat32(i * 16 + 4, true) * 32767);
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posa[index * 4 + 2] = math_floor(pixelsView.getFloat32(i * 16 + 8, true) * 32767);
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}
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let poff = 0;
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// for (let p of paintObjects) {
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let p = paint_objects[0];
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// let mesh = p.data.raw;
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let inv = 1 / 32767;
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let sc = p.data.scale_pos * inv;
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// let posa = mesh.vertex_arrays[0].values;
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let len = math_floor(posa.length / 4);
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// let len = math_floor(inda.length);
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// Merge shared vertices and remap indices
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let posa2 = new Int16Array(len * 3);
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let posmap = new map_t<i32, i32>();
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let pi = 0;
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for (let i = 0; i < len; ++i) {
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let found = false;
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for (let j = 0; j < pi; ++j) {
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if (posa2[j * 3 ] == posa[i * 4 ] &&
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posa2[j * 3 + 1] == posa[i * 4 + 1] &&
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posa2[j * 3 + 2] == posa[i * 4 + 2]) {
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posmap.set(i, j);
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found = true;
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break;
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}
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}
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if (!found) {
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posmap.set(i, pi);
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posa2[pi * 3 ] = posa[i * 4 ];
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posa2[pi * 3 + 1] = posa[i * 4 + 1];
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posa2[pi * 3 + 2] = posa[i * 4 + 2];
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pi++;
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}
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}
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export_obj_write_string(o, "o " + p.base.name + "\n");
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for (let i = 0; i < pi; ++i) {
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export_obj_write_string(o, "v ");
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let vx = posa2[i * 3] * sc + "";
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export_obj_write_string(o, vx.substr(0, vx.indexOf(".") + 7));
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export_obj_write_string(o, " ");
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let vy = posa2[i * 3 + 2] * sc + "";
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export_obj_write_string(o, vy.substr(0, vy.indexOf(".") + 7));
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export_obj_write_string(o, " ");
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let vz = -posa2[i * 3 + 1] * sc + "";
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export_obj_write_string(o, vz.substr(0, vz.indexOf(".") + 7));
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export_obj_write_string(o, "\n");
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}
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// let inda = mesh.index_arrays[0].values;
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for (let i = 0; i < math_floor(inda.length / 3); ++i) {
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let pi1 = posmap.get(inda[i * 3 ]) + 1 + poff;
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let pi2 = posmap.get(inda[i * 3 + 1]) + 1 + poff;
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let pi3 = posmap.get(inda[i * 3 + 2]) + 1 + poff;
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export_obj_write_string(o, "f ");
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export_obj_write_string(o, pi1 + "");
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export_obj_write_string(o, " ");
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export_obj_write_string(o, pi2 + "");
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export_obj_write_string(o, " ");
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export_obj_write_string(o, pi3 + "");
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export_obj_write_string(o, "\n");
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}
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poff += pi;
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// }
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if (!path.endsWith(".obj")) path += ".obj";
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let b = Uint8Array.from(o).buffer;
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krom_file_save_bytes(path, b, b.byteLength);
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}
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