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https://github.com/Azgaar/Fantasy-Map-Generator.git
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a27e592dcb
* Added OBJ exporter * Don't add links to document body * Changed to use downloadFile function
5 lines
2 KiB
JavaScript
5 lines
2 KiB
JavaScript
THREE.OBJExporter=function(){};
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THREE.OBJExporter.prototype={constructor:THREE.OBJExporter,parse:function(A){var f="",n=0,w=0,x=0,g=new THREE.Vector3,p=new THREE.Vector3,u=new THREE.Vector2,a,b,y,c,k,v=[];A.traverse(function(e){if(e instanceof THREE.Mesh){var r=0,t=0,d=0,h=e.geometry,z=new THREE.Matrix3;h instanceof THREE.Geometry&&(h=(new THREE.BufferGeometry).setFromObject(e));if(h instanceof THREE.BufferGeometry){var q=h.getAttribute("position"),l=h.getAttribute("normal"),m=h.getAttribute("uv");h=h.getIndex();f+="o "+e.name+
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"\n";e.material&&e.material.name&&(f+="usemtl "+e.material.name+"\n");if(void 0!==q)for(a=0,c=q.count;a<c;a++,r++)g.x=q.getX(a),g.y=q.getY(a),g.z=q.getZ(a),g.applyMatrix4(e.matrixWorld),f+="v "+g.x+" "+g.y+" "+g.z+"\n";if(void 0!==m)for(a=0,c=m.count;a<c;a++,d++)u.x=m.getX(a),u.y=m.getY(a),f+="vt "+u.x+" "+u.y+"\n";if(void 0!==l)for(z.getNormalMatrix(e.matrixWorld),a=0,c=l.count;a<c;a++,t++)p.x=l.getX(a),p.y=l.getY(a),p.z=l.getZ(a),p.applyMatrix3(z).normalize(),f+="vn "+p.x+" "+p.y+" "+p.z+"\n";if(null!==
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h)for(a=0,c=h.count;a<c;a+=3){for(k=0;3>k;k++)b=h.getX(a+k)+1,v[k]=n+b+(l||m?"/"+(m?w+b:"")+(l?"/"+(x+b):""):"");f+="f "+v.join(" ")+"\n"}else for(a=0,c=q.count;a<c;a+=3){for(k=0;3>k;k++)b=a+k+1,v[k]=n+b+(l||m?"/"+(m?w+b:"")+(l?"/"+(x+b):""):"");f+="f "+v.join(" ")+"\n"}}else console.warn("THREE.OBJExporter.parseMesh(): geometry type unsupported",h);n+=r;w+=d;x+=t}if(e instanceof THREE.Line){r=0;d=e.geometry;t=e.type;d instanceof THREE.Geometry&&(d=(new THREE.BufferGeometry).setFromObject(e));if(d instanceof
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THREE.BufferGeometry){d=d.getAttribute("position");f+="o "+e.name+"\n";if(void 0!==d)for(a=0,c=d.count;a<c;a++,r++)g.x=d.getX(a),g.y=d.getY(a),g.z=d.getZ(a),g.applyMatrix4(e.matrixWorld),f+="v "+g.x+" "+g.y+" "+g.z+"\n";if("Line"===t){f+="l ";b=1;for(c=d.count;b<=c;b++)f+=n+b+" ";f+="\n"}if("LineSegments"===t)for(b=1,y=b+1,c=d.count;b<c;b+=2,y=b+1)f+="l "+(n+b)+" "+(n+y)+"\n"}else console.warn("THREE.OBJExporter.parseLine(): geometry type unsupported",d);n+=r}});return f}};
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