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Make obj export work for sculpt

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This commit is contained in:
luboslenco
2023-10-14 08:12:45 +02:00
parent d0cbc75075
commit 7a8cc15cae
1 changed files with 26 additions and 105 deletions
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armorsculpt/Sources/arm/io/ExportObj.hx
+26 -105
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@@ -6,51 +6,39 @@ import iron.object.MeshObject;
class ExportObj {
// var f32 = new kha.arrays.Float32Array(2048 * 2048 * 4);
// for (i in 0...raw.index_arrays[0].values.length) {
// var index = raw.index_arrays[0].values[i];
// f32[i * 4] = mesh.posa[index * 4] / 32767;
// f32[i * 4 + 1] = mesh.posa[index * 4 + 1] / 32767;
// f32[i * 4 + 2] = mesh.posa[index * 4 + 2] / 32767;
// f32[i * 4 + 3] = 1.0;
// }
// var bytes = haxe.io.Bytes.ofData(f32.buffer);
// var imgmesh = kha.Image.fromBytes(bytes, 2048, 2048, kha.graphics4.TextureFormat.RGBA128);
// var texpaint = Project.layers[0].texpaint;
// texpaint.g2.begin(false);
// texpaint.g2.pipeline = App.pipeCopy128;
// texpaint.g2.drawScaledImage(imgmesh, 0, 0, 2048, 2048);
// texpaint.g2.pipeline = null;
// texpaint.g2.end();
public static function run(path: String, paintObjects: Array<MeshObject>, applyDisplacement = false) {
var o = new BytesOutput();
o.bigEndian = false;
o.writeString("# armorsculpt.org\n");
var texpaint = Project.layers[0].texpaint;
var pixels = texpaint.getPixels();
var mesh = paintObjects[0].data.raw;
var inda = mesh.index_arrays[0].values;
var posa = new Int16Array(inda.length * 4);
for (i in 0...inda.length) {
var index = inda[i];
posa[index * 4 ] = Std.int(pixels.getFloat(i * 16 ) * 32767);
posa[index * 4 + 1] = Std.int(pixels.getFloat(i * 16 + 4) * 32767);
posa[index * 4 + 2] = Std.int(pixels.getFloat(i * 16 + 8) * 32767);
}
var poff = 0;
// var noff = 0;
// var toff = 0;
for (p in paintObjects) {
var mesh = p.data.raw;
// for (p in paintObjects) {
var p = paintObjects[0];
// var mesh = p.data.raw;
var inv = 1 / 32767;
var sc = p.data.scalePos * inv;
var posa = mesh.vertex_arrays[0].values;
// var nora = mesh.vertex_arrays[1].values;
// var texa = mesh.vertex_arrays[2].values;
// var posa = mesh.vertex_arrays[0].values;
var len = Std.int(posa.length / 4);
// var len = Std.int(inda.length);
// Merge shared vertices and remap indices
var posa2 = new Int16Array(len * 3);
// var nora2 = new Int16Array(len * 3);
// var texa2 = new Int16Array(len * 2);
var posmap = new Map<Int, Int>();
// var normap = new Map<Int, Int>();
// var texmap = new Map<Int, Int>();
var pi = 0;
// var ni = 0;
// var ti = 0;
for (i in 0...len) {
var found = false;
for (j in 0...pi) {
@@ -69,104 +57,37 @@ class ExportObj {
posa2[pi * 3 + 2] = posa[i * 4 + 2];
pi++;
}
// found = false;
// for (j in 0...ni) {
// if (nora2[j * 3 ] == nora[i * 2 ] &&
// nora2[j * 3 + 1] == nora[i * 2 + 1] &&
// nora2[j * 3 + 2] == posa[i * 4 + 3]) {
// normap.set(i, j);
// found = true;
// break;
// }
// }
// if (!found) {
// normap.set(i, ni);
// nora2[ni * 3 ] = nora[i * 2 ];
// nora2[ni * 3 + 1] = nora[i * 2 + 1];
// nora2[ni * 3 + 2] = posa[i * 4 + 3];
// ni++;
// }
// found = false;
// for (j in 0...ti) {
// if (texa2[j * 2 ] == texa[i * 2 ] &&
// texa2[j * 2 + 1] == texa[i * 2 + 1]) {
// texmap.set(i, j);
// found = true;
// break;
// }
// }
// if (!found) {
// texmap.set(i, ti);
// texa2[ti * 2 ] = texa[i * 2 ];
// texa2[ti * 2 + 1] = texa[i * 2 + 1];
// ti++;
// }
}
o.writeString("o " + p.name + "\n");
for (i in 0...pi) {
o.writeString("v ");
o.writeString(posa2[i * 3] * sc + "");
var vx = posa2[i * 3] * sc + "";
o.writeString(vx.substr(0, vx.indexOf(".") + 7));
o.writeString(" ");
o.writeString(posa2[i * 3 + 2] * sc + "");
var vy = posa2[i * 3 + 2] * sc + "";
o.writeString(vy.substr(0, vy.indexOf(".") + 7));
o.writeString(" ");
o.writeString(-posa2[i * 3 + 1] * sc + "");
var vz = -posa2[i * 3 + 1] * sc + "";
o.writeString(vz.substr(0, vz.indexOf(".") + 7));
o.writeString("\n");
}
// for (i in 0...ni) {
// o.writeString("vn ");
// o.writeString(nora2[i * 3] * inv + "");
// o.writeString(" ");
// o.writeString(nora2[i * 3 + 2] * inv + "");
// o.writeString(" ");
// o.writeString(-nora2[i * 3 + 1] * inv + "");
// o.writeString("\n");
// }
// for (i in 0...ti) {
// o.writeString("vt ");
// o.writeString(texa2[i * 2] * inv + "");
// o.writeString(" ");
// o.writeString(1.0 - texa2[i * 2 + 1] * inv + "");
// o.writeString("\n");
// }
var inda = mesh.index_arrays[0].values;
// var inda = mesh.index_arrays[0].values;
for (i in 0...Std.int(inda.length / 3)) {
var pi1 = posmap.get(inda[i * 3 ]) + 1 + poff;
var pi2 = posmap.get(inda[i * 3 + 1]) + 1 + poff;
var pi3 = posmap.get(inda[i * 3 + 2]) + 1 + poff;
// var ni1 = normap.get(inda[i * 3 ]) + 1 + noff;
// var ni2 = normap.get(inda[i * 3 + 1]) + 1 + noff;
// var ni3 = normap.get(inda[i * 3 + 2]) + 1 + noff;
// var ti1 = texmap.get(inda[i * 3 ]) + 1 + toff;
// var ti2 = texmap.get(inda[i * 3 + 1]) + 1 + toff;
// var ti3 = texmap.get(inda[i * 3 + 2]) + 1 + toff;
o.writeString("f ");
o.writeString(pi1 + "");
o.writeString("/");
// o.writeString(ti1 + "");
o.writeString("/");
// o.writeString(ni1 + "");
o.writeString(" ");
o.writeString(pi2 + "");
o.writeString("/");
// o.writeString(ti2 + "");
o.writeString("/");
// o.writeString(ni2 + "");
o.writeString(" ");
o.writeString(pi3 + "");
o.writeString("/");
// o.writeString(ti3 + "");
o.writeString("/");
// o.writeString(ni3 + "");
o.writeString("\n");
}
poff += pi;
// noff += ni;
// toff += ti;
}
// }
if (!path.endsWith(".obj")) path += ".obj";