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Optimized binary model format to use indexed UVs. Updated OBJ slim converter and Loader accordingly.

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This saves about 10% from size of textured binary models.
This commit is contained in:
alteredq
2010-11-08 23:20:25 +01:00
parent ecf97e0d4c
commit a0fa2ae3dd
10 changed files with 530 additions and 304 deletions
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build/Three.js
+1 -1
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build/ThreeDebug.js
+1 -1
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examples/obj/female02/Female02_bin.bin
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examples/obj/lucy/Lucy100k_bin.bin
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examples/obj/male02/Male02_bin.bin
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examples/obj/torus/Torus_bin.bin
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examples/obj/walt/WaltHead_bin.bin
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examples/obj_convert_test.html
+6 -6
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@@ -15,7 +15,7 @@
h1 { }
a { color:skyblue }
canvas { pointer-events:none; z-index:10; position:relative; }
#log { position:absolute; top:0; display:none }
#log { position:absolute; top:0; display:block; text-align:left; z-index:1000 }
#d { text-align:center; margin:1em 0 -15.7em 0; z-index:0; position:relative; display:block }
.button { background:#000; color:#fff; padding:0.2em 0.5em; cursor:pointer }
.inactive { background:#999; color:#eee }
@@ -40,7 +40,7 @@
<p>Canvas renderer is very slow on anything other than Chrome.
</div>
<div id="log"></div>
<pre id="log"></pre>
<script type="text/javascript" src="../build/Three.js"></script>
<!--
@@ -244,11 +244,11 @@
//loader.loadAsciiOld( "obj/male02/male02.js", function() { createScene( new Male02( "obj/male02" ), 90, 50, FLOOR, 105 ) } );
//loader.loadAsciiOld( "obj/female02/female02.js", function() { createScene( new Female02( "obj/female02" ), -80, 50, FLOOR, 0 ) } );
loader.loadAscii( "obj/male02/Male02_slim.js", function( geometry ) { createScene( geometry, 90, 50, FLOOR, 105 ) }, "obj/male02" );
loader.loadAscii( "obj/female02/Female02_slim.js", function( geometry ) { createScene( geometry, -80, 50, FLOOR, 0 ) }, "obj/female02" );
//loader.loadAscii( "obj/male02/Male02_slim.js", function( geometry ) { createScene( geometry, 90, 50, FLOOR, 105 ) }, "obj/male02" );
//loader.loadAscii( "obj/female02/Female02_slim.js", function( geometry ) { createScene( geometry, -80, 50, FLOOR, 0 ) }, "obj/female02" );
//loader.loadBinary( "obj/male02/Male02_bin.js", function( geometry ) { createScene( geometry, 90, 50, FLOOR, 105 ) }, "obj/male02" );
//loader.loadBinary( "obj/female02/Female02_bin.js", function( geometry ) { createScene( geometry, -80, 50, FLOOR, 0 ) }, "obj/female02" );
loader.loadBinary( "obj/male02/Male02_bin.js", function( geometry ) { createScene( geometry, 90, 50, FLOOR, 105 ) }, "obj/male02" );
loader.loadBinary( "obj/female02/Female02_bin.js", function( geometry ) { createScene( geometry, -80, 50, FLOOR, 0 ) }, "obj/female02" );
}
src/io/Loader.js
+353 -221
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@@ -123,7 +123,8 @@ THREE.Loader.prototype = {
var scope = this,
currentOffset = 0,
md,
normals = [];
normals = [],
uvs = [];
THREE.Geometry.call(this);
@@ -135,14 +136,18 @@ THREE.Loader.prototype = {
currentOffset += init_vertices( currentOffset );
currentOffset += init_normals( currentOffset );
currentOffset += init_uvs( currentOffset );
currentOffset += init_triangles_flat( currentOffset );
currentOffset += init_triangles_smooth( currentOffset );
currentOffset += init_triangles_flat_uv( currentOffset );
currentOffset += init_triangles_smooth_uv( currentOffset );
currentOffset += init_quads_flat( currentOffset );
currentOffset += init_quads_smooth( currentOffset );
currentOffset += init_uvs_tri( currentOffset );
init_uvs_quad( data, currentOffset, md.nuvtri );
currentOffset += init_quads_flat_uv( currentOffset );
currentOffset += init_quads_smooth_uv( currentOffset );
this.computeCentroids();
this.computeNormals();
@@ -153,24 +158,33 @@ THREE.Loader.prototype = {
function parseMetaData( data, offset ) {
var metaData = {
'signature' :parseString( data, offset, 8 ),
'signature' :parseString( data, offset, 8 ),
'header_bytes' :parseUChar8( data, offset + 8 ),
'vertex_coordinate_bytes' :parseUChar8( data, offset + 9 ),
'vertex_index_bytes' :parseUChar8( data, offset + 10 ),
'normal_index_bytes' :parseUChar8( data, offset + 11 ),
'material_index_bytes' :parseUChar8( data, offset + 12 ),
'normal_coordinate_bytes' :parseUChar8( data, offset + 13 ),
'uv_coordinate_bytes' :parseUChar8( data, offset + 14 ),
'normal_coordinate_bytes' :parseUChar8( data, offset + 10 ),
'uv_coordinate_bytes' :parseUChar8( data, offset + 11 ),
'vertex_index_bytes' :parseUChar8( data, offset + 12 ),
'normal_index_bytes' :parseUChar8( data, offset + 13 ),
'uv_index_bytes' :parseUChar8( data, offset + 14 ),
'material_index_bytes' :parseUChar8( data, offset + 15 ),
'nvertices' :parseUInt32( data, offset + 15 ),
'ntri_flat' :parseUInt32( data, offset + 15 + 4*1 ),
'ntri_smooth' :parseUInt32( data, offset + 15 + 4*2 ),
'nquad_flat' :parseUInt32( data, offset + 15 + 4*3 ),
'nquad_smooth' :parseUInt32( data, offset + 15 + 4*4 ),
'nnormals' :parseUInt32( data, offset + 15 + 4*5 ),
'nuvtri' :parseUInt32( data, offset + 15 + 4*6 ),
'nuvquad' :parseUInt32( data, offset + 15 + 4*7 ),
'nvertices' :parseUInt32( data, offset + 16 ),
'nnormals' :parseUInt32( data, offset + 16 + 4*1 ),
'nuvs' :parseUInt32( data, offset + 16 + 4*2 ),
'ntri_flat' :parseUInt32( data, offset + 16 + 4*3 ),
'ntri_smooth' :parseUInt32( data, offset + 16 + 4*4 ),
'ntri_flat_uv' :parseUInt32( data, offset + 16 + 4*5 ),
'ntri_smooth_uv' :parseUInt32( data, offset + 16 + 4*6 ),
'nquad_flat' :parseUInt32( data, offset + 16 + 4*7 ),
'nquad_smooth' :parseUInt32( data, offset + 16 + 4*8 ),
'nquad_flat_uv' :parseUInt32( data, offset + 16 + 4*9 ),
'nquad_smooth_uv' :parseUInt32( data, offset + 16 + 4*10 )
};
/*
@@ -178,20 +192,27 @@ THREE.Loader.prototype = {
log( "header_bytes: " + metaData.header_bytes );
log( "vertex_coordinate_bytes: " + metaData.vertex_coordinate_bytes );
log( "vertex_index_bytes: " + metaData.vertex_index_bytes );
log( "normal_index_bytes: " + metaData.normal_index_bytes );
log( "material_index_bytes: " + metaData.material_index_bytes );
log( "normal_coordinate_bytes: " + metaData.normal_coordinate_bytes );
log( "uv_coordinate_bytes: " + metaData.uv_coordinate_bytes );
log( "vertex_index_bytes: " + metaData.vertex_index_bytes );
log( "normal_index_bytes: " + metaData.normal_index_bytes );
log( "uv_index_bytes: " + metaData.uv_index_bytes );
log( "material_index_bytes: " + metaData.material_index_bytes );
log( "nvertices: " + metaData.nvertices );
log( "nnormals: " + metaData.nnormals );
log( "nuvs: " + metaData.nuvs );
log( "ntri_flat: " + metaData.ntri_flat );
log( "ntri_smooth: " + metaData.ntri_smooth );
log( "ntri_flat_uv: " + metaData.ntri_flat_uv );
log( "ntri_smooth_uv: " + metaData.ntri_smooth_uv );
log( "nquad_flat: " + metaData.nquad_flat );
log( "nquad_smooth: " + metaData.nquad_smooth );
log( "nnormals: " + metaData.nnormals );
log( "nuvtri: " + metaData.nuvtri );
log( "nuvquad: " + metaData.nuvquad );
log( "nquad_flat_uv: " + metaData.nquad_flat_uv );
log( "nquad_smooth_uv: " + metaData.nquad_smooth_uv );
*/
return metaData;
@@ -271,199 +292,6 @@ THREE.Loader.prototype = {
}
function init_triangles_flat( start ) {
var i, a, b, c, m, material,
stride = md.vertex_index_bytes * 3 + md.material_index_bytes;
for( i = 0; i < md.ntri_flat; ++i ) {
a = parseUInt32( data, start + i*stride );
b = parseUInt32( data, start + i*stride + md.vertex_index_bytes );
c = parseUInt32( data, start + i*stride + md.vertex_index_bytes*2 );
m = parseUInt16( data, start + i*stride + md.vertex_index_bytes*3 );
material = scope.materials[ m ];
scope.faces.push( new THREE.Face3( a, b, c, null, material ) );
}
return md.ntri_flat * stride;
}
function init_triangles_smooth( start ) {
var i, a, b, c, m, na, nb, nc, material,
nax, nay, naz, nbx, nby, nbz, ncx, ncy, ncz,
stride = md.vertex_index_bytes * 3 + md.material_index_bytes + md.normal_index_bytes * 3;
for( i = 0; i < md.ntri_smooth; ++i ) {
a = parseUInt32( data, start + i*stride );
b = parseUInt32( data, start + i*stride + md.vertex_index_bytes );
c = parseUInt32( data, start + i*stride + md.vertex_index_bytes*2 );
m = parseUInt16( data, start + i*stride + md.vertex_index_bytes*3 );
na = parseUInt32( data, start + i*stride + md.vertex_index_bytes*3 + md.material_index_bytes );
nb = parseUInt32( data, start + i*stride + md.vertex_index_bytes*3 + md.material_index_bytes + md.normal_index_bytes );
nc = parseUInt32( data, start + i*stride + md.vertex_index_bytes*3 + md.material_index_bytes + md.normal_index_bytes*2 );
material = scope.materials[ m ];
nax = normals[ na*3 ],
nay = normals[ na*3 + 1 ],
naz = normals[ na*3 + 2 ],
nbx = normals[ nb*3 ],
nby = normals[ nb*3 + 1 ],
nbz = normals[ nb*3 + 2 ],
ncx = normals[ nc*3 ],
ncy = normals[ nc*3 + 1 ],
ncz = normals[ nc*3 + 2 ];
scope.faces.push( new THREE.Face3( a, b, c,
[new THREE.Vector3( nax, nay, naz ),
new THREE.Vector3( nbx, nby, nbz ),
new THREE.Vector3( ncx, ncy, ncz )],
material ) );
}
return md.ntri_smooth * stride;
}
function init_quads_flat( start ) {
var i, a, b, c, d, m, material,
stride = md.vertex_index_bytes * 4 + md.material_index_bytes;;
for( i = 0; i < md.nquad_flat; ++i ) {
a = parseUInt32( data, start + i*stride );
b = parseUInt32( data, start + i*stride + md.vertex_index_bytes );
c = parseUInt32( data, start + i*stride + md.vertex_index_bytes*2 );
d = parseUInt32( data, start + i*stride + md.vertex_index_bytes*3 );
m = parseUInt16( data, start + i*stride + md.vertex_index_bytes*4 );
material = scope.materials[ m ];
scope.faces.push( new THREE.Face4( a, b, c, d, null, material ) );
}
return md.nquad_flat * stride;
}
function init_quads_smooth( start ) {
var i, a, b, c, d, m, na, nb, nc, nd, material,
nax, nay, naz, nbx, nby, nbz, ncx, ncy, ncz, ndx, ndy, ndz,
stride = md.vertex_index_bytes * 4 + md.material_index_bytes + md.normal_index_bytes * 4;
for( i = 0; i < md.nquad_smooth; ++i ) {
a = parseUInt32( data, start + i*stride );
b = parseUInt32( data, start + i*stride + md.vertex_index_bytes );
c = parseUInt32( data, start + i*stride + md.vertex_index_bytes*2 );
d = parseUInt32( data, start + i*stride + md.vertex_index_bytes*3 );
m = parseUInt16( data, start + i*stride + md.vertex_index_bytes*4 );
na = parseUInt32( data, start + i*stride + md.vertex_index_bytes*4 + md.material_index_bytes );
nb = parseUInt32( data, start + i*stride + md.vertex_index_bytes*4 + md.material_index_bytes + md.normal_index_bytes );
nc = parseUInt32( data, start + i*stride + md.vertex_index_bytes*4 + md.material_index_bytes + md.normal_index_bytes*2 );
nd = parseUInt32( data, start + i*stride + md.vertex_index_bytes*4 + md.material_index_bytes + md.normal_index_bytes*3 );
material = scope.materials[ m ];
nax = normals[ na*3 ],
nay = normals[ na*3 + 1 ],
naz = normals[ na*3 + 2 ],
nbx = normals[ nb*3 ],
nby = normals[ nb*3 + 1 ],
nbz = normals[ nb*3 + 2 ],
ncx = normals[ nc*3 ],
ncy = normals[ nc*3 + 1 ],
ncz = normals[ nc*3 + 2 ];
ndx = normals[ nd*3 ],
ndy = normals[ nd*3 + 1 ],
ndz = normals[ nd*3 + 2 ];
scope.faces.push( new THREE.Face4( a, b, c, d,
[new THREE.Vector3( nax, nay, naz ),
new THREE.Vector3( nbx, nby, nbz ),
new THREE.Vector3( ncx, ncy, ncz ),
new THREE.Vector3( ndx, ndy, ndz )],
material ) );
}
return md.nquad_smooth * stride;
}
function init_uvs_tri( start ) {
var i, ua, ub, uc, va, vb, vc, uv,
stride = md.uv_coordinate_bytes * 6;
for( i = 0; i < md.nuvtri; i++ ) {
ua = parseFloat32( data, start + i*stride );
va = parseFloat32( data, start + i*stride + 4 );
ub = parseFloat32( data, start + i*stride + 8 );
vb = parseFloat32( data, start + i*stride + 12 );
uc = parseFloat32( data, start + i*stride + 16 );
vc = parseFloat32( data, start + i*stride + 20 );
uv = [];
uv.push( new THREE.UV( ua, va ) );
uv.push( new THREE.UV( ub, vb ) );
uv.push( new THREE.UV( uc, vc ) );
scope.uvs.push( uv );
}
return md.nuvtri * stride;
}
function init_uvs_quad( start ) {
var i, ua, ub, uc, ud, va, vb, vc, vd, uv,
stride = md.uv_coordinate_bytes * 8;
for( i = 0; i < md.nuvquad; i++ ) {
ua = parseFloat32( data, start + i*stride );
va = parseFloat32( data, start + i*stride + 4 );
ub = parseFloat32( data, start + i*stride + 8 );
vb = parseFloat32( data, start + i*stride + 12 );
uc = parseFloat32( data, start + i*stride + 16 );
vc = parseFloat32( data, start + i*stride + 20 );
ud = parseFloat32( data, start + i*stride + 24 );
vd = parseFloat32( data, start + i*stride + 28 );
uv = [];
uv.push( new THREE.UV( ua, va ) );
uv.push( new THREE.UV( ub, vb ) );
uv.push( new THREE.UV( uc, vc ) );
uv.push( new THREE.UV( ud, vd ) );
scope.uvs.push( uv );
}
return md.nuvquad * stride;
}
function init_normals( start ) {
var i, x, y, z,
@@ -482,6 +310,311 @@ THREE.Loader.prototype = {
return md.nnormals * stride;
}
function init_uvs( start ) {
var i, u, v,
stride = md.uv_coordinate_bytes * 2;
for( i = 0; i < md.nuvs; ++i ) {
u = parseFloat32( data, start + i*stride );
v = parseFloat32( data, start + i*stride + md.uv_coordinate_bytes );
uvs.push( u, v );
}
return md.nuvs * stride;
}
function add_tri( start, i, stride ) {
var a, b, c, m, material;
a = parseUInt32( data, start + i*stride );
b = parseUInt32( data, start + i*stride + md.vertex_index_bytes );
c = parseUInt32( data, start + i*stride + md.vertex_index_bytes*2 );
m = parseUInt16( data, start + i*stride + md.vertex_index_bytes*3 );
material = scope.materials[ m ];
scope.faces.push( new THREE.Face3( a, b, c, null, material ) );
}
function add_tri_n( start, i, stride ) {
var a, b, c, m, na, nb, nc, material,
nax, nay, naz, nbx, nby, nbz, ncx, ncy, ncz;
a = parseUInt32( data, start + i*stride );
b = parseUInt32( data, start + i*stride + md.vertex_index_bytes );
c = parseUInt32( data, start + i*stride + md.vertex_index_bytes*2 );
m = parseUInt16( data, start + i*stride + md.vertex_index_bytes*3 );
na = parseUInt32( data, start + i*stride + md.vertex_index_bytes*3 + md.material_index_bytes );
nb = parseUInt32( data, start + i*stride + md.vertex_index_bytes*3 + md.material_index_bytes + md.normal_index_bytes );
nc = parseUInt32( data, start + i*stride + md.vertex_index_bytes*3 + md.material_index_bytes + md.normal_index_bytes*2 );
material = scope.materials[ m ];
nax = normals[ na*3 ],
nay = normals[ na*3 + 1 ],
naz = normals[ na*3 + 2 ],
nbx = normals[ nb*3 ],
nby = normals[ nb*3 + 1 ],
nbz = normals[ nb*3 + 2 ],
ncx = normals[ nc*3 ],
ncy = normals[ nc*3 + 1 ],
ncz = normals[ nc*3 + 2 ];
scope.faces.push( new THREE.Face3( a, b, c,
[new THREE.Vector3( nax, nay, naz ),
new THREE.Vector3( nbx, nby, nbz ),
new THREE.Vector3( ncx, ncy, ncz )],
material ) );
}
function add_quad( start, i, stride ) {
var a, b, c, d, m, material;
a = parseUInt32( data, start + i*stride );
b = parseUInt32( data, start + i*stride + md.vertex_index_bytes );
c = parseUInt32( data, start + i*stride + md.vertex_index_bytes*2 );
d = parseUInt32( data, start + i*stride + md.vertex_index_bytes*3 );
m = parseUInt16( data, start + i*stride + md.vertex_index_bytes*4 );
material = scope.materials[ m ];
scope.faces.push( new THREE.Face4( a, b, c, d, null, material ) );
}
function add_quad_n( start, i, stride ) {
var a, b, c, d, m, na, nb, nc, nd, material,
nax, nay, naz, nbx, nby, nbz, ncx, ncy, ncz, ndx, ndy, ndz;
a = parseUInt32( data, start + i*stride );
b = parseUInt32( data, start + i*stride + md.vertex_index_bytes );
c = parseUInt32( data, start + i*stride + md.vertex_index_bytes*2 );
d = parseUInt32( data, start + i*stride + md.vertex_index_bytes*3 );
m = parseUInt16( data, start + i*stride + md.vertex_index_bytes*4 );
na = parseUInt32( data, start + i*stride + md.vertex_index_bytes*4 + md.material_index_bytes );
nb = parseUInt32( data, start + i*stride + md.vertex_index_bytes*4 + md.material_index_bytes + md.normal_index_bytes );
nc = parseUInt32( data, start + i*stride + md.vertex_index_bytes*4 + md.material_index_bytes + md.normal_index_bytes*2 );
nd = parseUInt32( data, start + i*stride + md.vertex_index_bytes*4 + md.material_index_bytes + md.normal_index_bytes*3 );
material = scope.materials[ m ];
nax = normals[ na*3 ],
nay = normals[ na*3 + 1 ],
naz = normals[ na*3 + 2 ],
nbx = normals[ nb*3 ],
nby = normals[ nb*3 + 1 ],
nbz = normals[ nb*3 + 2 ],
ncx = normals[ nc*3 ],
ncy = normals[ nc*3 + 1 ],
ncz = normals[ nc*3 + 2 ];
ndx = normals[ nd*3 ],
ndy = normals[ nd*3 + 1 ],
ndz = normals[ nd*3 + 2 ];
scope.faces.push( new THREE.Face4( a, b, c, d,
[new THREE.Vector3( nax, nay, naz ),
new THREE.Vector3( nbx, nby, nbz ),
new THREE.Vector3( ncx, ncy, ncz ),
new THREE.Vector3( ndx, ndy, ndz )],
material ) );
}
function add_uv3( start, i, stride, offset ) {
var uva, uvb, uvc, u1, u2, u3, v1, v2, v3, uv;
uva = parseUInt32( data, start + i*stride + offset );
uvb = parseUInt32( data, start + i*stride + offset + md.uv_index_bytes );
uvc = parseUInt32( data, start + i*stride + offset + md.uv_index_bytes * 2 );
u1 = uvs[ uva*2 ];
v1 = uvs[ uva*2 + 1];
u2 = uvs[ uvb*2 ];
v2 = uvs[ uvb*2 + 1];
u3 = uvs[ uvc*2 ];
v3 = uvs[ uvc*2 + 1];
uv = [];
uv.push( new THREE.UV( u1, v1 ) );
uv.push( new THREE.UV( u2, v2 ) );
uv.push( new THREE.UV( u3, v3 ) );
scope.uvs.push( uv );
}
function add_uv4( start, i, stride, offset ) {
var uva, uvb, uvc, uvd, u1, u2, u3, u4, v1, v2, v3, v4, uv;
uva = parseUInt32( data, start + i*stride + offset );
uvb = parseUInt32( data, start + i*stride + offset + md.uv_index_bytes );
uvc = parseUInt32( data, start + i*stride + offset + md.uv_index_bytes * 2 );
uvd = parseUInt32( data, start + i*stride + offset + md.uv_index_bytes * 3 );
u1 = uvs[ uva*2 ];
v1 = uvs[ uva*2 + 1];
u2 = uvs[ uvb*2 ];
v2 = uvs[ uvb*2 + 1];
u3 = uvs[ uvc*2 ];
v3 = uvs[ uvc*2 + 1];
u4 = uvs[ uvd*2 ];
v4 = uvs[ uvd*2 + 1];
uv = [];
uv.push( new THREE.UV( u1, v1 ) );
uv.push( new THREE.UV( u2, v2 ) );
uv.push( new THREE.UV( u3, v3 ) );
uv.push( new THREE.UV( u4, v4 ) );
scope.uvs.push( uv );
}
function init_triangles_flat( start ) {
var i, stride = md.vertex_index_bytes * 3 + md.material_index_bytes;
for( i = 0; i < md.ntri_flat; ++i ) {
add_tri( start, i, stride );
}
return md.ntri_flat * stride;
}
function init_triangles_flat_uv( start ) {
var i, offset = md.vertex_index_bytes * 3 + md.material_index_bytes,
stride = offset + md.uv_index_bytes * 3;
for( i = 0; i < md.ntri_flat_uv; ++i ) {
add_tri( start, i, stride );
add_uv3( start, i, stride, md.vertex_index_bytes*3 + md.material_index_bytes );
}
return md.ntri_flat_uv * stride;
}
function init_triangles_smooth( start ) {
var i, stride = md.vertex_index_bytes * 3 + md.material_index_bytes + md.normal_index_bytes * 3;
for( i = 0; i < md.ntri_smooth; ++i ) {
add_tri_n( start, i, stride );
}
return md.ntri_smooth * stride;
}
function init_triangles_smooth_uv( start ) {
var i, offset = md.vertex_index_bytes * 3 + md.material_index_bytes + md.normal_index_bytes * 3,
stride = offset + md.uv_index_bytes * 3;
for( i = 0; i < md.ntri_smooth_uv; ++i ) {
add_tri_n( start, i, stride );
add_uv3( start, i, stride, offset );
}
return md.ntri_smooth * stride;
}
function init_quads_flat( start ) {
var i, stride = md.vertex_index_bytes * 4 + md.material_index_bytes;
for( i = 0; i < md.nquad_flat; ++i ) {
add_quad( start, i, stride );
}
return md.nquad_flat * stride;
}
function init_quads_flat_uv( start ) {
var i, offset = md.vertex_index_bytes * 4 + md.material_index_bytes,
stride = offset + md.uv_index_bytes * 4;
for( i = 0; i < md.nquad_flat_uv; ++i ) {
add_quad( start, i, stride );
add_uv4( start, i, offset );
}
return md.nquad_flat * stride;
}
function init_quads_smooth( start ) {
var i, stride = md.vertex_index_bytes * 4 + md.material_index_bytes + md.normal_index_bytes * 4;
for( i = 0; i < md.nquad_smooth; ++i ) {
add_quad_n( start, i, stride );
}
return md.nquad_smooth * stride;
}
function init_quads_smooth_uv( start ) {
var i, offset = md.vertex_index_bytes * 4 + md.material_index_bytes + md.normal_index_bytes * 4,
stride = offset + md.uv_index_bytes * 4;
for( i = 0; i < md.nquad_smooth_uv; ++i ) {
add_quad_n( start, i, stride );
add_uv4( start, i, stride, offset );
}
return md.nquad_smooth * stride;
}
function init_materials() {
@@ -557,9 +690,9 @@ THREE.Loader.prototype = {
}
return material;
}
}
Model.prototype = new THREE.Geometry();
@@ -601,8 +734,6 @@ THREE.Loader.prototype = {
function init_faces() {
var i, l;
function add_tri( src, i, stride ) {
var a, b, c, m;
@@ -716,6 +847,7 @@ THREE.Loader.prototype = {
}
var i, l;
for( i = 0, l = data.triangles.length/4; i < l; i++ ) {
utils/exporters/convert_obj_threejs_slim.py
+169 -75
View File
@@ -838,27 +838,35 @@ def convert_binary(infile, outfile):
# ###################
# preprocess faces
triangles_flat = []
triangles_flat_uv = []
triangles_smooth = []
triangles_smooth_uv = []
quads_flat = []
quads_flat_uv = []
quads_smooth = []
faces_uv_tri = []
faces_uv_quad = []
quads_smooth_uv = []
for f in faces:
if is_triangle_flat(f):
triangles_flat.append(f)
elif is_triangle_flat_uv(f):
triangles_flat_uv.append(f)
elif is_triangle_smooth(f):
triangles_smooth.append(f)
elif is_triangle_smooth_uv(f):
triangles_smooth_uv.append(f)
elif is_quad_flat(f):
quads_flat.append(f)
elif is_quad_flat_uv(f):
quads_flat_uv.append(f)
elif is_quad_smooth(f):
quads_smooth.append(f)
ui = f['uv']
if len(ui) == 3:
faces_uv_tri.append(f)
elif len(ui) == 4:
faces_uv_quad.append(f)
elif is_quad_smooth_uv(f):
quads_smooth_uv.append(f)
if SHADING == "smooth":
nnormals = len(normals)
@@ -870,51 +878,65 @@ def convert_binary(infile, outfile):
# header
# ------
header_bytes = struct.calcsize('<8s')
header_bytes += struct.calcsize('<BBBBBBB')
header_bytes += struct.calcsize('<IIIIIIII')
header_bytes += struct.calcsize('<BBBBBBBB')
header_bytes += struct.calcsize('<IIIIIIIIIII')
# signature
signature = struct.pack('<8s', 'Three.js')
# metadata (all data is little-endian)
vertex_coordinate_bytes = 4
vertex_index_bytes = 4
normal_index_bytes = 4
material_index_bytes = 2
normal_coordinate_bytes = 1
uv_coordinate_bytes = 4
vertex_index_bytes = 4
normal_index_bytes = 4
uv_index_bytes = 4
material_index_bytes = 2
# header_bytes unsigned char 1
# vertex_coordinate_bytes unsigned char 1
# vertex_index_bytes unsigned char 1
# normal_index_bytes unsigned char 1
# material_index_bytes unsigned char 1
# normal_coordinate_bytes unsigned char 1
# uv_coordinate_bytes unsigned char 1
bdata = struct.pack('<BBBBBBB', header_bytes,
# vertex_index_bytes unsigned char 1
# normal_index_bytes unsigned char 1
# uv_index_bytes unsigned char 1
# material_index_bytes unsigned char 1
bdata = struct.pack('<BBBBBBBB', header_bytes,
vertex_coordinate_bytes,
normal_coordinate_bytes,
uv_coordinate_bytes,
vertex_index_bytes,
normal_index_bytes,
material_index_bytes,
normal_coordinate_bytes,
uv_coordinate_bytes)
# nvertices unsigned int 4
# ntri_flat unsigned int 4
# ntri_smooth unsigned int 4
# nquad_flat unsigned int 4
# nquad_smooth unsigned int 4
# nnormals unsigned int 4
# nuvtri unsigned int 4
# nuvquad unsigned int 4
ndata = struct.pack('<IIIIIIII', len(vertices),
uv_index_bytes,
material_index_bytes)
# nvertices unsigned int 4
# nnormals unsigned int 4
# nuvs unsigned int 4
# ntri_flat unsigned int 4
# ntri_smooth unsigned int 4
# ntri_flat_uv unsigned int 4
# ntri_smooth_uv unsigned int 4
# nquad_flat unsigned int 4
# nquad_smooth unsigned int 4
# nquad_flat_uv unsigned int 4
# nquad_smooth_uv unsigned int 4
ndata = struct.pack('<IIIIIIIIIII', len(vertices),
nnormals,
len(uvs),
len(triangles_flat),
len(triangles_smooth),
len(triangles_flat_uv),
len(triangles_smooth_uv),
len(quads_flat),
len(quads_smooth),
nnormals,
len(faces_uv_tri),
len(faces_uv_quad))
len(quads_flat_uv),
len(quads_smooth_uv))
buffer.append(signature)
buffer.append(bdata)
buffer.append(ndata)
@@ -936,11 +958,20 @@ def convert_binary(infile, outfile):
if SHADING == "smooth":
for n in normals:
normalize(n)
data = struct.pack('<bbb', math.floor(n[0]*127+0.5), math.floor(n[1]*127+0.5), math.floor(n[2]*127+0.5))
data = struct.pack('<bbb', math.floor(n[0]*127+0.5),
math.floor(n[1]*127+0.5),
math.floor(n[2]*127+0.5))
buffer.append(data)
# 3. flat triangles
# 3. uvs
# -----------
# u float 4
# v float 4
for uv in uvs:
data = struct.pack('<ff', uv[0], 1.0-uv[1])
buffer.append(data)
# 4. flat triangles
# ------------------
# a unsigned int 4
# b unsigned int 4
@@ -948,10 +979,12 @@ def convert_binary(infile, outfile):
# m unsigned short 2
for f in triangles_flat:
vi = f['vertex']
data = struct.pack('<IIIH', vi[0]-1, vi[1]-1, vi[2]-1, f['material'])
data = struct.pack('<IIIH',
vi[0]-1, vi[1]-1, vi[2]-1,
f['material'])
buffer.append(data)
# 4. smooth triangles
# 5. smooth triangles
# -------------------
# a unsigned int 4
# b unsigned int 4
@@ -963,10 +996,54 @@ def convert_binary(infile, outfile):
for f in triangles_smooth:
vi = f['vertex']
ni = f['normal']
data = struct.pack('<IIIHIII', vi[0]-1, vi[1]-1, vi[2]-1, f['material'], ni[0]-1, ni[1]-1, ni[2]-1)
data = struct.pack('<IIIHIII',
vi[0]-1, vi[1]-1, vi[2]-1,
f['material'],
ni[0]-1, ni[1]-1, ni[2]-1)
buffer.append(data)
# 5. flat quads
# 6. flat triangles uv
# --------------------
# a unsigned int 4
# b unsigned int 4
# c unsigned int 4
# m unsigned short 2
# ua unsigned int 4
# ub unsigned int 4
# uc unsigned int 4
for f in triangles_flat_uv:
vi = f['vertex']
ui = f['uv']
data = struct.pack('<IIIHIII',
vi[0]-1, vi[1]-1, vi[2]-1,
f['material'],
ui[0]-1, ui[1]-1, ui[2]-1)
buffer.append(data)
# 7. smooth triangles uv
# ----------------------
# a unsigned int 4
# b unsigned int 4
# c unsigned int 4
# m unsigned short 2
# na unsigned int 4
# nb unsigned int 4
# nc unsigned int 4
# ua unsigned int 4
# ub unsigned int 4
# uc unsigned int 4
for f in triangles_smooth_uv:
vi = f['vertex']
ni = f['normal']
ui = f['uv']
data = struct.pack('<IIIHIIIIII',
vi[0]-1, vi[1]-1, vi[2]-1,
f['material'],
ni[0]-1, ni[1]-1, ni[2]-1,
ui[0]-1, ui[1]-1, ui[2]-1)
buffer.append(data)
# 8. flat quads
# ------------------
# a unsigned int 4
# b unsigned int 4
@@ -975,10 +1052,12 @@ def convert_binary(infile, outfile):
# m unsigned short 2
for f in quads_flat:
vi = f['vertex']
data = struct.pack('<IIIIH', vi[0]-1, vi[1]-1, vi[2]-1, vi[3]-1, f['material'])
data = struct.pack('<IIIIH',
vi[0]-1, vi[1]-1, vi[2]-1, vi[3]-1,
f['material'])
buffer.append(data)
# 6. smooth quads
# 9. smooth quads
# -------------------
# a unsigned int 4
# b unsigned int 4
@@ -992,42 +1071,57 @@ def convert_binary(infile, outfile):
for f in quads_smooth:
vi = f['vertex']
ni = f['normal']
data = struct.pack('<IIIIHIIII', vi[0]-1, vi[1]-1, vi[2]-1, vi[3]-1, f['material'], ni[0]-1, ni[1]-1, ni[2]-1, ni[3]-1)
data = struct.pack('<IIIIHIIII',
vi[0]-1, vi[1]-1, vi[2]-1, vi[3]-1,
f['material'],
ni[0]-1, ni[1]-1, ni[2]-1, ni[3]-1)
buffer.append(data)
# 7. uvs triangles
# ----------------
# ua float 4
# va float 4
# ub float 4
# vb float 4
# uc float 4
# vc float 4
for f in faces_uv_tri:
# 10. flat quads uv
# ------------------
# a unsigned int 4
# b unsigned int 4
# c unsigned int 4
# d unsigned int 4
# m unsigned short 2
# ua unsigned int 4
# ub unsigned int 4
# uc unsigned int 4
# ud unsigned int 4
for f in quads_flat_uv:
vi = f['vertex']
ui = f['uv']
for i in ui:
u = uvs[i-1][0]
v = 1.0 - uvs[i-1][1]
data = struct.pack('<ff', u,v)
buffer.append(data)
# 8. uvs quads
# ----------------
# ua float 4
# va float 4
# ub float 4
# vb float 4
# uc float 4
# vc float 4
# ud float 4
# vd float 4
for f in faces_uv_quad:
data = struct.pack('<IIIIHIIII',
vi[0]-1, vi[1]-1, vi[2]-1, vi[3]-1,
f['material'],
ui[0]-1, ui[1]-1, ui[2]-1, ui[3]-1)
buffer.append(data)
# 11. smooth quads uv
# -------------------
# a unsigned int 4
# b unsigned int 4
# c unsigned int 4
# d unsigned int 4
# m unsigned short 2
# na unsigned int 4
# nb unsigned int 4
# nc unsigned int 4
# nd unsigned int 4
# ua unsigned int 4
# ub unsigned int 4
# uc unsigned int 4
# ud unsigned int 4
for f in quads_smooth_uv:
vi = f['vertex']
ni = f['normal']
ui = f['uv']
for i in ui:
u = uvs[i-1][0]
v = 1.0 - uvs[i-1][1]
data = struct.pack('<ff', u,v)
buffer.append(data)
data = struct.pack('<IIIIHIIIIIIII',
vi[0]-1, vi[1]-1, vi[2]-1, vi[3]-1,
f['material'],
ni[0]-1, ni[1]-1, ni[2]-1, ni[3]-1,
ui[0]-1, ui[1]-1, ui[2]-1, ui[3]-1)
buffer.append(data)
path = os.path.dirname(outfile)
fname = os.path.join(path, binfile)