luboslenco
452 lines
17 KiB
TypeScript
452 lines
17 KiB
TypeScript
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let import_blend_mesh_eps: f32 = 1.0 / 32767;
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function import_blend_mesh_run(path: string, replace_existing: bool = true) {
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let b: ArrayBuffer = data_get_blob(path);
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let bl: BlendRaw = parser_blend_init(b);
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if (bl.dna == null) {
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console_error(strings_error3());
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return;
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}
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let obs: BlHandleRaw[] = parser_blend_get(bl, "Object");
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if (obs == null || obs.length == 0) { import_mesh_make_mesh(null, path); return; }
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let first: bool = true;
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for (let ob of obs) {
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if (bl_handle_get(ob, "type") != 1) continue;
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let name: string = bl_handle_get(bl_handle_get(ob, "id"), "name");
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name = name.substring(2, name.length);
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let m: any = bl_handle_get(ob, "data", 0, "Mesh");
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if (m == null) continue;
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let totpoly: i32 = bl_handle_get(m, "totpoly");
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if (totpoly == 0) continue;
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let numtri: i32 = 0;
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for (let i: i32 = 0; i < totpoly; ++i) {
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let poly: any = bl_handle_get(m, "mpoly", i);
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let totloop: i32 = bl_handle_get(poly, "totloop");
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numtri += totloop - 2;
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}
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let inda: Uint32Array = new Uint32Array(numtri * 3);
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for (let i: i32 = 0; i < inda.length; ++i) inda[i] = i;
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let posa32: Float32Array = new Float32Array(numtri * 3 * 4);
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let posa: Int16Array = new Int16Array(numtri * 3 * 4);
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let nora: Int16Array = new Int16Array(numtri * 3 * 2);
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// pdata, 25 == CD_MPOLY
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// let vdata: any = get(m, "vdata");
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// let codata: any = null;
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// let codata_pos: i32 = 0;
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// for (let i: i32 = 0; i < get(vdata, "totlayer"); ++i) {
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// let l: any = get(vdata, "layers", i);
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// if (get(l, "type") == 0) { // CD_MVERT
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// let ptr: any = get(l, "data");
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// codata_pos = bl.get(map, ptr).pos;
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// codata = l;
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// }
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// }
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let ldata: any = bl_handle_get(m, "ldata");
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let uvdata: any = null;
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let uvdata_pos: i32 = 0;
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let coldata: any = null;
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let coldata_pos: i32 = 0;
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for (let i: i32 = 0; i < bl_handle_get(ldata, "totlayer"); ++i) {
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let l: any = bl_handle_get(ldata, "layers", i);
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if (bl_handle_get(l, "type") == 16) { // CD_MLOOPUV
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let ptr: any = bl_handle_get(l, "data");
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uvdata_pos = bl.map.get(ptr).pos;
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uvdata = l;
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}
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else if (bl_handle_get(l, "type") == 17) { // CD_PROP_BYTE_COLOR
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let ptr: any = bl_handle_get(l, "data");
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coldata_pos = bl.map.get(ptr).pos;
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coldata = l;
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}
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// CD_MLOOP == 26
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}
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let hasuv: bool = uvdata != null;
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let texa: Int16Array = hasuv ? new Int16Array(numtri * 3 * 2) : null;
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let hascol: bool = context_raw.parse_vcols && coldata != null;
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let cola: Int16Array = hascol ? new Int16Array(numtri * 3 * 4) : null;
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let tri: i32 = 0;
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let vec0: vec4_t = vec4_create();
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let vec1: vec4_t = vec4_create();
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let vec2: vec4_t = vec4_create();
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for (let i: i32 = 0; i < totpoly; ++i) {
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let poly: any = bl_handle_get(m, "mpoly", i);
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// let smooth: bool = get(poly, "flag") & 1 == 1; // ME_SMOOTH
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let smooth: bool = false; // TODO: fetch smooth normals
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let loopstart: i32 = bl_handle_get(poly, "loopstart");
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let totloop: i32 = bl_handle_get(poly, "totloop");
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if (totloop <= 4) { // Convex, fan triangulation
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let v0: BlHandleRaw = import_blend_mesh_get_mvert_v(m, loopstart + totloop - 1);
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let v1: BlHandleRaw = import_blend_mesh_get_mvert_v(m, loopstart);
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let co0: any = bl_handle_get(v0, "co");
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let co1: any = bl_handle_get(v1, "co");
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let no0: any = bl_handle_get(v0, "no");
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let no1: any = bl_handle_get(v1, "no");
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if (smooth) {
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vec4_normalize(vec4_set(vec0, no0[0] / 32767, no0[1] / 32767, no0[2] / 32767)); // shortmax
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vec4_normalize(vec4_set(vec1, no1[0] / 32767, no1[1] / 32767, no1[2] / 32767));
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}
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let uv0: Float32Array = null;
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let uv1: Float32Array = null;
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let uv2: Float32Array = null;
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if (hasuv) {
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bl.pos = uvdata_pos + (loopstart + totloop - 1) * 4 * 3; // * 3 = x, y, flag
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uv0 = parser_blend_read_f32array(bl, 2);
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if (uv0[0] > 1.0 + import_blend_mesh_eps) uv0[0] = uv0[0] - math_floor(uv0[0]);
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if (uv0[1] > 1.0 + import_blend_mesh_eps) uv0[1] = uv0[1] - math_floor(uv0[1]);
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bl.pos = uvdata_pos + (loopstart) * 4 * 3;
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uv1 = parser_blend_read_f32array(bl, 2);
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if (uv1[0] > 1.0 + import_blend_mesh_eps) uv1[0] = uv1[0] - math_floor(uv1[0]);
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if (uv1[1] > 1.0 + import_blend_mesh_eps) uv1[1] = uv1[1] - math_floor(uv1[1]);
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}
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let col0r: i32 = 0;
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let col0g: i32 = 0;
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let col0b: i32 = 0;
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let col1r: i32 = 0;
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let col1g: i32 = 0;
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let col1b: i32 = 0;
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let col2r: i32 = 0;
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let col2g: i32 = 0;
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let col2b: i32 = 0;
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if (hascol) {
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bl.pos = coldata_pos + (loopstart + totloop - 1) * 1 * 4; // * 4 = r, g, b, a
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col0r = parser_blend_read_i8(bl);
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col0g = parser_blend_read_i8(bl);
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col0b = parser_blend_read_i8(bl);
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bl.pos = coldata_pos + (loopstart) * 1 * 4;
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col1r = parser_blend_read_i8(bl);
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col1g = parser_blend_read_i8(bl);
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col1b = parser_blend_read_i8(bl);
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}
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for (let j: i32 = 0; j < totloop - 2; ++j) {
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let v2: BlHandleRaw = import_blend_mesh_get_mvert_v(m, loopstart + j + 1);
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let co2: any = bl_handle_get(v2, "co");
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let no2: any = bl_handle_get(v2, "no");
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if (smooth) {
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vec4_normalize(vec4_set(vec2, no2[0] / 32767, no2[1] / 32767, no2[2] / 32767));
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}
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else {
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vec4_set(vec2, co2[0], co2[1], co2[2]);
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vec4_set(vec1, co1[0], co1[1], co1[2]);
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vec4_sub_vecs(vec0, vec2, vec1);
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vec4_set(vec2, co0[0], co0[1], co0[2]);
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vec4_sub_vecs(vec1, vec2, vec1);
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vec4_cross(vec0, vec1);
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vec4_normalize(vec0);
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}
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posa32[tri * 9 ] = co0[0];
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posa32[tri * 9 + 1] = co0[1];
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posa32[tri * 9 + 2] = co0[2];
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posa32[tri * 9 + 3] = co1[0];
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posa32[tri * 9 + 4] = co1[1];
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posa32[tri * 9 + 5] = co1[2];
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posa32[tri * 9 + 6] = co2[0];
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posa32[tri * 9 + 7] = co2[1];
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posa32[tri * 9 + 8] = co2[2];
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posa[tri * 12 + 3] = math_floor(vec0.z * 32767);
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posa[tri * 12 + 7] = math_floor((smooth ? vec1.z : vec0.z) * 32767);
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posa[tri * 12 + 11] = math_floor((smooth ? vec2.z : vec0.z) * 32767);
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nora[tri * 6 ] = math_floor(vec0.x * 32767);
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nora[tri * 6 + 1] = math_floor(vec0.y * 32767);
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nora[tri * 6 + 2] = math_floor((smooth ? vec1.x : vec0.x) * 32767);
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nora[tri * 6 + 3] = math_floor((smooth ? vec1.y : vec0.y) * 32767);
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nora[tri * 6 + 4] = math_floor((smooth ? vec2.x : vec0.x) * 32767);
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nora[tri * 6 + 5] = math_floor((smooth ? vec2.y : vec0.y) * 32767);
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co1 = co2;
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no1 = no2;
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vec4_set_from(vec1, vec2);
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if (hasuv) {
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bl.pos = uvdata_pos + (loopstart + j + 1) * 4 * 3;
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uv2 = parser_blend_read_f32array(bl, 2);
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if (uv2[0] > 1.0 + import_blend_mesh_eps) uv2[0] = uv2[0] - math_floor(uv2[0]);
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if (uv2[1] > 1.0 + import_blend_mesh_eps) uv2[1] = uv2[1] - math_floor(uv2[1]);
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texa[tri * 6 ] = math_floor(uv0[0] * 32767);
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texa[tri * 6 + 1] = math_floor((1.0 - uv0[1]) * 32767);
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texa[tri * 6 + 2] = math_floor(uv1[0] * 32767);
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texa[tri * 6 + 3] = math_floor((1.0 - uv1[1]) * 32767);
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texa[tri * 6 + 4] = math_floor(uv2[0] * 32767);
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texa[tri * 6 + 5] = math_floor((1.0 - uv2[1]) * 32767);
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uv1 = uv2;
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}
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if (hascol) {
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bl.pos = coldata_pos + (loopstart + j + 1) * 1 * 4;
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col2r = parser_blend_read_i8(bl);
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col2g = parser_blend_read_i8(bl);
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col2b = parser_blend_read_i8(bl);
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cola[tri * 12 ] = col0r * 128;
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cola[tri * 12 + 1] = col0g * 128;
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cola[tri * 12 + 2] = col0b * 128;
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cola[tri * 12 + 3] = col1r * 128;
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cola[tri * 12 + 4] = col1g * 128;
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cola[tri * 12 + 5] = col1b * 128;
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cola[tri * 12 + 6] = col2r * 128;
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cola[tri * 12 + 7] = col2g * 128;
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cola[tri * 12 + 8] = col2b * 128;
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col1r = col2r;
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col1g = col2g;
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col1b = col2b;
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}
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tri++;
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}
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}
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else { // Convex or concave, ear clipping
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let va: i32[] = [];
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for (let i: i32 = 0; i < totloop; ++i) va.push(loopstart + i);
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let v0: BlHandleRaw = import_blend_mesh_get_mvert_v(m, loopstart);
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let v1: BlHandleRaw = import_blend_mesh_get_mvert_v(m, loopstart + 1);
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let v2: BlHandleRaw = import_blend_mesh_get_mvert_v(m, loopstart + 2);
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let co0: any = bl_handle_get(v0, "co");
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let co1: any = bl_handle_get(v1, "co");
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let co2: any = bl_handle_get(v2, "co");
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vec4_set(vec2, co2[0], co2[1], co2[2]);
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vec4_set(vec1, co1[0], co1[1], co1[2]);
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vec4_sub_vecs(vec0, vec2, vec1);
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vec4_set(vec2, co0[0], co0[1], co0[2]);
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vec4_sub_vecs(vec1, vec2, vec1);
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vec4_cross(vec0, vec1);
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vec4_normalize(vec0, );
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let nx: f32 = vec0.x;
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let ny: f32 = vec0.y;
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let nz: f32 = vec0.z;
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let nxabs: f32 = math_abs(nx);
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let nyabs: f32 = math_abs(ny);
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let nzabs: f32 = math_abs(nz);
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let flip: bool = nx + ny + nz > 0;
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let axis: i32 = nxabs > nyabs && nxabs > nzabs ? 0 : nyabs > nxabs && nyabs > nzabs ? 1 : 2;
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let axis0: i32 = axis == 0 ? (flip ? 2 : 1) : axis == 1 ? (flip ? 0 : 2) : (flip ? 1 : 0);
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let axis1: i32 = axis == 0 ? (flip ? 1 : 2) : axis == 1 ? (flip ? 2 : 0) : (flip ? 0 : 1);
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let winding: f32 = 0.0;
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for (let i: i32 = 0; i < totloop; ++i) {
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let v0: BlHandleRaw = import_blend_mesh_get_mvert_v(m, loopstart + i);
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let v1: BlHandleRaw = import_blend_mesh_get_mvert_v(m, loopstart + ((i + 1) % totloop));
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let co0: any = bl_handle_get(v0, "co");
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let co1: any = bl_handle_get(v1, "co");
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winding += (co1[axis0] - co0[axis0]) * (co1[axis1] + co0[axis1]);
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}
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flip = winding > 0 ? nx + ny + nz > 0 : nx + ny + nz < 0;
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axis0 = axis == 0 ? (flip ? 2 : 1) : axis == 1 ? (flip ? 0 : 2) : (flip ? 1 : 0);
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axis1 = axis == 0 ? (flip ? 1 : 2) : axis == 1 ? (flip ? 2 : 0) : (flip ? 0 : 1);
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let vi: i32 = totloop;
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let loops: i32 = 0;
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let i: i32 = -1;
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while (vi > 2 && loops++ < vi) {
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i = (i + 1) % vi;
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let i1: i32 = (i + 1) % vi;
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let i2: i32 = (i + 2) % vi;
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let v0: BlHandleRaw = import_blend_mesh_get_mvert_v(m, va[i ]);
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let v1: BlHandleRaw = import_blend_mesh_get_mvert_v(m, va[i1]);
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let v2: BlHandleRaw = import_blend_mesh_get_mvert_v(m, va[i2]);
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let co0: any = bl_handle_get(v0, "co");
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let co1: any = bl_handle_get(v1, "co");
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let co2: any = bl_handle_get(v2, "co");
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let v0x: f32 = co0[axis0];
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let v0y: f32 = co0[axis1];
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let v1x: f32 = co1[axis0];
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let v1y: f32 = co1[axis1];
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let v2x: f32 = co2[axis0];
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let v2y: f32 = co2[axis1];
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let e0x: f32 = v0x - v1x; // Not an interior vertex
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let e0y: f32 = v0y - v1y;
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let e1x: f32 = v2x - v1x;
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let e1y: f32 = v2y - v1y;
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let cross: f32 = e0x * e1y - e0y * e1x;
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if (cross <= 0) continue;
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let overlap: bool = false; // Other vertex found inside this triangle
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for (let j: i32 = 0; j < vi - 3; ++j) {
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let j0: i32 = (i + 3 + j) % vi;
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let v: BlHandleRaw = import_blend_mesh_get_mvert_v(m, va[j0]);
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let co: any = bl_handle_get(v, "co");
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let px: f32 = co[axis0];
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let py: f32 = co[axis1];
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if (util_mesh_pnpoly(v0x, v0y, v1x, v1y, v2x, v2y, px, py)) {
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overlap = true;
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break;
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}
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}
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if (overlap) continue;
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// Found ear
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{
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let no0: any = bl_handle_get(v0, "no");
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let no1: any = bl_handle_get(v1, "no");
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let no2: any = bl_handle_get(v2, "no");
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if (smooth) {
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vec4_normalize(vec4_set(vec0, no0[0] / 32767, no0[1] / 32767, no0[2] / 32767)); // shortmax
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vec4_normalize(vec4_set(vec1, no1[0] / 32767, no1[1] / 32767, no1[2] / 32767));
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vec4_normalize(vec4_set(vec2, no2[0] / 32767, no2[1] / 32767, no2[2] / 32767));
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}
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else {
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vec4_set(vec2, co2[0], co2[1], co2[2]);
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vec4_set(vec1, co1[0], co1[1], co1[2]);
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vec4_sub_vecs(vec0, vec2, vec1);
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vec4_set(vec2, co0[0], co0[1], co0[2]);
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vec4_sub_vecs(vec1, vec2, vec1);
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vec4_cross(vec0, vec1);
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vec4_normalize(vec0, );
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}
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let uv0: Float32Array = null;
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let uv1: Float32Array = null;
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let uv2: Float32Array = null;
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if (hasuv) {
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bl.pos = uvdata_pos + (va[i ]) * 4 * 3;
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uv0 = parser_blend_read_f32array(bl, 2);
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if (uv0[0] > 1.0 + import_blend_mesh_eps) uv0[0] = uv0[0] - math_floor(uv0[0]);
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if (uv0[1] > 1.0 + import_blend_mesh_eps) uv0[1] = uv0[1] - math_floor(uv0[1]);
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bl.pos = uvdata_pos + (va[i1]) * 4 * 3;
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uv1 = parser_blend_read_f32array(bl, 2);
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if (uv1[0] > 1.0 + import_blend_mesh_eps) uv1[0] = uv1[0] - math_floor(uv1[0]);
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if (uv1[1] > 1.0 + import_blend_mesh_eps) uv1[1] = uv1[1] - math_floor(uv1[1]);
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bl.pos = uvdata_pos + (va[i2]) * 4 * 3;
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uv2 = parser_blend_read_f32array(bl, 2);
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if (uv2[0] > 1.0 + import_blend_mesh_eps) uv2[0] = uv2[0] - math_floor(uv2[0]);
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if (uv2[1] > 1.0 + import_blend_mesh_eps) uv2[1] = uv2[1] - math_floor(uv2[1]);
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}
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let col0r: i32 = 0;
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let col0g: i32 = 0;
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let col0b: i32 = 0;
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let col1r: i32 = 0;
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let col1g: i32 = 0;
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let col1b: i32 = 0;
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let col2r: i32 = 0;
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let col2g: i32 = 0;
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let col2b: i32 = 0;
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if (hascol) {
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bl.pos = coldata_pos + (va[i ]) * 1 * 4;
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col0r = parser_blend_read_i8(bl);
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col0g = parser_blend_read_i8(bl);
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col0b = parser_blend_read_i8(bl);
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bl.pos = coldata_pos + (va[i1]) * 1 * 4;
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col1r = parser_blend_read_i8(bl);
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col1g = parser_blend_read_i8(bl);
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col1b = parser_blend_read_i8(bl);
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bl.pos = coldata_pos + (va[i2]) * 1 * 4;
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col2r = parser_blend_read_i8(bl);
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col2g = parser_blend_read_i8(bl);
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col2b = parser_blend_read_i8(bl);
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}
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posa32[tri * 9 ] = co0[0];
|
|
posa32[tri * 9 + 1] = co0[1];
|
|
posa32[tri * 9 + 2] = co0[2];
|
|
posa32[tri * 9 + 3] = co1[0];
|
|
posa32[tri * 9 + 4] = co1[1];
|
|
posa32[tri * 9 + 5] = co1[2];
|
|
posa32[tri * 9 + 6] = co2[0];
|
|
posa32[tri * 9 + 7] = co2[1];
|
|
posa32[tri * 9 + 8] = co2[2];
|
|
posa[tri * 12 + 3] = math_floor(vec0.z * 32767);
|
|
posa[tri * 12 + 7] = math_floor((smooth ? vec1.z : vec0.z) * 32767);
|
|
posa[tri * 12 + 11] = math_floor((smooth ? vec2.z : vec0.z) * 32767);
|
|
nora[tri * 6 ] = math_floor(vec0.x * 32767);
|
|
nora[tri * 6 + 1] = math_floor(vec0.y * 32767);
|
|
nora[tri * 6 + 2] = math_floor((smooth ? vec1.x : vec0.x) * 32767);
|
|
nora[tri * 6 + 3] = math_floor((smooth ? vec1.y : vec0.y) * 32767);
|
|
nora[tri * 6 + 4] = math_floor((smooth ? vec2.x : vec0.x) * 32767);
|
|
nora[tri * 6 + 5] = math_floor((smooth ? vec2.y : vec0.y) * 32767);
|
|
if (hasuv) {
|
|
texa[tri * 6 ] = math_floor(uv0[0] * 32767);
|
|
texa[tri * 6 + 1] = math_floor((1.0 - uv0[1]) * 32767);
|
|
texa[tri * 6 + 2] = math_floor(uv1[0] * 32767);
|
|
texa[tri * 6 + 3] = math_floor((1.0 - uv1[1]) * 32767);
|
|
texa[tri * 6 + 4] = math_floor(uv2[0] * 32767);
|
|
texa[tri * 6 + 5] = math_floor((1.0 - uv2[1]) * 32767);
|
|
}
|
|
if (hascol) {
|
|
cola[tri * 12 ] = col0r * 128;
|
|
cola[tri * 12 + 1] = col0g * 128;
|
|
cola[tri * 12 + 2] = col0b * 128;
|
|
cola[tri * 12 + 3] = col1r * 128;
|
|
cola[tri * 12 + 4] = col1g * 128;
|
|
cola[tri * 12 + 5] = col1b * 128;
|
|
cola[tri * 12 + 6] = col2r * 128;
|
|
cola[tri * 12 + 7] = col2g * 128;
|
|
cola[tri * 12 + 8] = col2b * 128;
|
|
}
|
|
tri++;
|
|
}
|
|
|
|
for (let j: i32 = ((i + 1) % vi); j < vi - 1; ++j) { // Consume vertex
|
|
va[j] = va[j + 1];
|
|
}
|
|
vi--;
|
|
i--;
|
|
loops = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Apply world matrix
|
|
let obmat: any = bl_handle_get(ob, "obmat", 0, "float", 16);
|
|
let mat: mat4_t = mat4_transpose(mat4_from_f32_array(obmat));
|
|
let v: vec4_t = vec4_create();
|
|
for (let i: i32 = 0; i < math_floor(posa32.length / 3); ++i) {
|
|
vec4_set(v, posa32[i * 3], posa32[i * 3 + 1], posa32[i * 3 + 2]);
|
|
vec4_apply_mat4(v, mat);
|
|
posa32[i * 3 ] = v.x;
|
|
posa32[i * 3 + 1] = v.y;
|
|
posa32[i * 3 + 2] = v.z;
|
|
}
|
|
mat4_get_inv(mat, mat);
|
|
mat4_transpose3x3(mat);
|
|
mat.m[12] = mat.m[13] = mat.m[14] = mat.m[15] = 0;
|
|
for (let i: i32 = 0; i < math_floor(nora.length / 2); ++i) {
|
|
vec4_set(v, nora[i * 2] / 32767, nora[i * 2 + 1] / 32767, posa[i * 4 + 3] / 32767);
|
|
vec4_apply_mat(v, mat);
|
|
vec4_normalize(v);
|
|
nora[i * 2 ] = math_floor(v.x * 32767);
|
|
nora[i * 2 + 1] = math_floor(v.y * 32767);
|
|
posa[i * 4 + 3] = math_floor(v.z * 32767);
|
|
}
|
|
|
|
// Pack positions to (-1, 1) range
|
|
let scale_pos: f32 = 0.0;
|
|
for (let i: i32 = 0; i < posa32.length; ++i) {
|
|
let f: f32 = math_abs(posa32[i]);
|
|
if (scale_pos < f) scale_pos = f;
|
|
}
|
|
let inv: f32 = 1 / scale_pos;
|
|
for (let i: i32 = 0; i < math_floor(posa32.length / 3); ++i) {
|
|
posa[i * 4 ] = math_floor(posa32[i * 3 ] * 32767 * inv);
|
|
posa[i * 4 + 1] = math_floor(posa32[i * 3 + 1] * 32767 * inv);
|
|
posa[i * 4 + 2] = math_floor(posa32[i * 3 + 2] * 32767 * inv);
|
|
}
|
|
|
|
let obj: any = {
|
|
posa: posa,
|
|
nora: nora,
|
|
texa: texa,
|
|
cola: cola,
|
|
inda: inda,
|
|
name: name,
|
|
scale_pos: scale_pos,
|
|
scale_tex: 1.0
|
|
};
|
|
|
|
(first && replace_existing) ? import_mesh_make_mesh(obj, path) : import_mesh_add_mesh(obj);
|
|
first = false;
|
|
}
|
|
|
|
data_delete_blob(path);
|
|
}
|
|
|
|
function import_blend_mesh_get_mvert_v(m: BlHandleRaw, loopstart: i32) {
|
|
return bl_handle_get(m, "mvert", bl_handle_get(bl_handle_get(m, "mloop", loopstart), "v"));
|
|
}
|