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three.js-projector
Commit 3dbee6b2 authored by Дмитрий Никулин's avatar Дмитрий Никулин
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Port upstream changes

parent f03a0d5a
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index.js
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...@@ -5,42 +5,47 @@ ...@@ -5,42 +5,47 @@
*/ */
define(['three'], function(THREE, BSPTree){ define(['three'], function(THREE, BSPTree){
var Projector = {}; var Projector = {};
var i, l, o; // counters var i, l, o; // counters
Projector.RenderableObject = function () { THREE.RenderableObject = function () {
this.id = 0; this.id = 0;
this.object = null; this.object = null;
this.z = 0; this.z = 0;
this.renderOrder = 0;
}; };
//
Projector.RenderableFace = function () { THREE.RenderableFace = function () {
this.id = 0; this.id = 0;
this.v1 = new THREE.RenderableVertex(); this.v1 = new THREE.RenderableVertex();
this.v2 = new THREE.RenderableVertex(); this.v2 = new THREE.RenderableVertex();
this.v3 = new THREE.RenderableVertex(); this.v3 = new THREE.RenderableVertex();
this.normalModel = new THREE.Vector3(); this.normalModel = new THREE.Vector3();
this.vertexNormalsModel = [ new THREE.Vector3(), new THREE.Vector3(), new THREE.Vector3() ]; this.vertexNormalsModel = [ new THREE.Vector3(), new THREE.Vector3(), new THREE.Vector3() ];
this.vertexNormalsLength = 0; this.vertexNormalsLength = 0;
this.color = new THREE.Color(); this.color = new THREE.Color();
this.material = null; this.material = null;
this.uvs = [ new THREE.Vector2(), new THREE.Vector2(), new THREE.Vector2() ]; this.uvs = [ new THREE.Vector2(), new THREE.Vector2(), new THREE.Vector2() ];
this.priority = null;
this.z = 0; this.z = 0;
this.renderOrder = 0;
};
}; //
Projector.RenderableFace.prototype.copy = function ( face ){ THREE.RenderableFace.prototype.copy = function ( face ){
this.v1.copy(face.v1); this.v1.copy(face.v1);
this.v2.copy(face.v2); this.v2.copy(face.v2);
this.v3.copy(face.v3); this.v3.copy(face.v3);
...@@ -53,41 +58,44 @@ define(['three'], function(THREE, BSPTree){ ...@@ -53,41 +58,44 @@ define(['three'], function(THREE, BSPTree){
this.color = face.color; this.color = face.color;
this.material = face.material; this.material = face.material;
this.uvs = face.uvs; this.uvs = face.uvs;
this.priority = face.priority; this.renderOrder = face.renderOrder;
}; };
Projector.RenderableVertex = function () { THREE.RenderableVertex = function () {
this.position = new THREE.Vector3(); this.position = new THREE.Vector3();
this.positionWorld = new THREE.Vector3(); this.positionWorld = new THREE.Vector3();
this.positionScreen = new THREE.Vector4(); this.positionScreen = new THREE.Vector4();
this.visible = true; this.visible = true;
}; };
THREE.RenderableVertex.prototype.copy = function ( vertex ) {
Projector.RenderableVertex.prototype.copy = function ( vertex ) { this.positionWorld.copy( vertex.positionWorld );
this.positionScreen.copy( vertex.positionScreen );
this.positionWorld.copy( vertex.positionWorld ); };
this.positionScreen.copy( vertex.positionScreen );
}; //
Projector.RenderableLine = function () { THREE.RenderableLine = function () {
this.id = 0; this.id = 0;
this.v1 = new Projector.RenderableVertex(); this.v1 = new THREE.RenderableVertex();
this.v2 = new Projector.RenderableVertex(); this.v2 = new THREE.RenderableVertex();
this.vertexColors = [ new THREE.Color(), new THREE.Color() ]; this.vertexColors = [ new THREE.Color(), new THREE.Color() ];
this.material = null; this.material = null;
this.z = 0; this.z = 0;
this.renderOrder = 0;
}; };
Projector.RenderableLine.prototype.copy = function( line ){ THREE.RenderableLine.prototype.copy = function( line ){
this.v1.copy(line.v1); this.v1.copy(line.v1);
this.v2.copy(line.v2); this.v2.copy(line.v2);
...@@ -95,777 +103,801 @@ define(['three'], function(THREE, BSPTree){ ...@@ -95,777 +103,801 @@ define(['three'], function(THREE, BSPTree){
this.material = line.material; this.material = line.material;
}; };
Projector.RenderableSprite = function () { //
this.id = 0; THREE.RenderableSprite = function () {
this.object = null; this.id = 0;
this.x = 0; this.object = null;
this.y = 0;
this.z = 0;
this.rotation = 0; this.x = 0;
this.scale = new THREE.Vector2(); this.y = 0;
this.z = 0;
this.material = null; this.rotation = 0;
this.scale = new THREE.Vector2();
}; this.material = null;
this.renderOrder = 0;
Projector.Projector = function () { };
var _object, _objectCount, _objectPool = [], _objectPoolLength = 0, //
_vertex, _camera, _vertexCount, _vertexPool = [], _vertexPoolLength = 0,
_face, _faceCount, _facePool = [], _facePoolLength = 0,
_line, _lineCount, _linePool = [], _linePoolLength = 0,
_sprite, _spriteCount, _spritePool = [], _spritePoolLength = 0,
_renderData = { objects: [], lights: [], elements: [] }, THREE.Projector = function () {
_vA = new THREE.Vector3(), var _object, _objectCount, _objectPool = [], _objectPoolLength = 0,
_vB = new THREE.Vector3(), _vertex, _camera, _vertexCount, _vertexPool = [], _vertexPoolLength = 0,
_vC = new THREE.Vector3(), _face, _faceCount, _facePool = [], _facePoolLength = 0,
_line, _lineCount, _linePool = [], _linePoolLength = 0,
_sprite, _spriteCount, _spritePool = [], _spritePoolLength = 0,
_vector3 = new THREE.Vector3(), _renderData = { objects: [], lights: [], elements: [] },
_vector4 = new THREE.Vector4(),
_clipBox = new THREE.Box3( new THREE.Vector3( - 1, - 1, - 1 ), new THREE.Vector3( 1, 1, 1 ) ), _vector3 = new THREE.Vector3(),
_boundingBox = new THREE.Box3(), _vector4 = new THREE.Vector4(),
_points3 = new Array( 3 ),
_points4 = new Array( 4 ),
_viewMatrix = new THREE.Matrix4(), _clipBox = new THREE.Box3( new THREE.Vector3( - 1, - 1, - 1 ), new THREE.Vector3( 1, 1, 1 ) ),
_viewProjectionMatrix = new THREE.Matrix4(), _boundingBox = new THREE.Box3(),
_points3 = new Array( 3 ),
_points4 = new Array( 4 ),
_modelMatrix, _viewMatrix = new THREE.Matrix4(),
_modelViewProjectionMatrix = new THREE.Matrix4(), _viewProjectionMatrix = new THREE.Matrix4(),
_normalMatrix = new THREE.Matrix3(), _modelMatrix,
_modelViewProjectionMatrix = new THREE.Matrix4(),
_frustum = new THREE.Frustum(), _normalMatrix = new THREE.Matrix3(),
_clippedVertex1PositionScreen = new THREE.Vector4(), _frustum = new THREE.Frustum(),
_clippedVertex2PositionScreen = new THREE.Vector4();
this.projectVector = function ( vector, camera ) { _clippedVertex1PositionScreen = new THREE.Vector4(),
_clippedVertex2PositionScreen = new THREE.Vector4();
//
logger.warn( 'THREE.Projector: .projectVector() is now vector.project().' ); this.projectVector = function ( vector, camera ) {
vector.project( camera );
}; console.warn( 'THREE.Projector: .projectVector() is now vector.project().' );
vector.project( camera );
this.unprojectVector = function ( vector, camera ) { };
logger.warn( 'THREE.Projector: .unprojectVector() is now vector.unproject().' ); this.unprojectVector = function ( vector, camera ) {
vector.unproject( camera );
}; console.warn( 'THREE.Projector: .unprojectVector() is now vector.unproject().' );
vector.unproject( camera );
this.pickingRay = function ( vector, camera ) { };
logger.error( 'THREE.Projector: .pickingRay() is now raycaster.setFromCamera().' ); this.pickingRay = function ( vector, camera ) {
}; console.error( 'THREE.Projector: .pickingRay() is now raycaster.setFromCamera().' );
var RenderList = function () { };
var normals = []; //
var uvs = [];
var object = null; var RenderList = function () {
var material = null;
var normalMatrix = new THREE.Matrix3(); var normals = [];
var uvs = [];
var setObject = function ( value ) { var object = null;
var material = null;
object = value; var normalMatrix = new THREE.Matrix3();
material = object.material;
normalMatrix.getNormalMatrix( object.matrixWorld ); function setObject( value ) {
normals.length = 0; object = value;
uvs.length = 0; material = object.material;
}; normalMatrix.getNormalMatrix( object.matrixWorld );
var projectVertex = function ( vertex ) { normals.length = 0;
uvs.length = 0;
var position = vertex.position; }
var positionWorld = vertex.positionWorld;
var positionScreen = vertex.positionScreen;
positionWorld.copy( position ).applyMatrix4( _modelMatrix ); function projectVertex( vertex ) {
positionScreen.copy( positionWorld ).applyMatrix4( _viewProjectionMatrix );
var invW = 1 / positionScreen.w; var position = vertex.position;
var positionWorld = vertex.positionWorld;
var positionScreen = vertex.positionScreen;
positionScreen.x *= invW; positionWorld.copy( position ).applyMatrix4( _modelMatrix );
positionScreen.y *= invW; positionScreen.copy( positionWorld ).applyMatrix4( _viewProjectionMatrix );
positionScreen.z *= invW;
vertex.visible = positionScreen.x >= - 1 && positionScreen.x <= 1 && var invW = 1 / positionScreen.w;
positionScreen.y >= - 1 && positionScreen.y <= 1 &&
positionScreen.z >= - 1 && positionScreen.z <= 1;
}; positionScreen.x *= invW;
positionScreen.y *= invW;
positionScreen.z *= invW;
var pushVertex = function ( x, y, z ) { vertex.visible = positionScreen.x >= - 1 && positionScreen.x <= 1 &&
positionScreen.y >= - 1 && positionScreen.y <= 1 &&
positionScreen.z >= - 1 && positionScreen.z <= 1;
_vertex = getNextVertexInPool(); }
_vertex.position.set( x, y, z );
projectVertex( _vertex ); function pushVertex( x, y, z ) {
}; _vertex = getNextVertexInPool();
_vertex.position.set( x, y, z );
var pushNormal = function ( x, y, z ) { projectVertex( _vertex );
normals.push( x, y, z ); }
}; function pushNormal( x, y, z ) {
var pushUv = function ( x, y ) { normals.push( x, y, z );
uvs.push( x, y ); }
}; function pushUv( x, y ) {
var checkTriangleVisibility = function ( v1, v2, v3 ) { uvs.push( x, y );
if ( v1.visible === true || v2.visible === true || v3.visible === true ) return true; }
_points3[ 0 ] = v1.positionScreen; function checkTriangleVisibility( v1, v2, v3 ) {
_points3[ 1 ] = v2.positionScreen;
_points3[ 2 ] = v3.positionScreen;
return _clipBox.isIntersectionBox( _boundingBox.setFromPoints( _points3 ) ); if ( v1.visible === true || v2.visible === true || v3.visible === true ) return true;
}; _points3[ 0 ] = v1.positionScreen;
_points3[ 1 ] = v2.positionScreen;
_points3[ 2 ] = v3.positionScreen;
var checkBackfaceCulling = function ( v1, v2, v3 ) { return _clipBox.intersectsBox( _boundingBox.setFromPoints( _points3 ) );
return ( ( v3.positionScreen.x - v1.positionScreen.x ) * }
( v2.positionScreen.y - v1.positionScreen.y ) -
( v3.positionScreen.y - v1.positionScreen.y ) *
( v2.positionScreen.x - v1.positionScreen.x ) ) < 0;
}; function checkBackfaceCulling( v1, v2, v3 ) {
var pushLine = function ( a, b ) { return ( ( v3.positionScreen.x - v1.positionScreen.x ) *
( v2.positionScreen.y - v1.positionScreen.y ) -
( v3.positionScreen.y - v1.positionScreen.y ) *
( v2.positionScreen.x - v1.positionScreen.x ) ) < 0;
var v1 = _vertexPool[ a ]; }
var v2 = _vertexPool[ b ];
_line = getNextLineInPool(); function pushLine( a, b ) {
_line.id = object.id; var v1 = _vertexPool[ a ];
_line.v1.copy( v1 ); var v2 = _vertexPool[ b ];
_line.v2.copy( v2 );
_line.z = ( v1.positionScreen.z + v2.positionScreen.z ) / 2;
_line.material = object.material; _line = getNextLineInPool();
_renderData.elements.push( _line ); _line.id = object.id;
_line.v1.copy( v1 );
_line.v2.copy( v2 );
_line.z = ( v1.positionScreen.z + v2.positionScreen.z ) / 2;
_line.renderOrder = object.renderOrder;
}; _line.material = object.material;
var pushTriangle = function ( a, b, c ) { _renderData.elements.push( _line );
var v1 = _vertexPool[ a ]; }
var v2 = _vertexPool[ b ];
var v3 = _vertexPool[ c ];
if ( checkTriangleVisibility( v1, v2, v3 ) === false ) return; function pushTriangle( a, b, c ) {
if ( material.side === THREE.DoubleSide || checkBackfaceCulling( v1, v2, v3 ) === true ) { var v1 = _vertexPool[ a ];
var v2 = _vertexPool[ b ];
var v3 = _vertexPool[ c ];
_face = getNextFaceInPool(); if ( checkTriangleVisibility( v1, v2, v3 ) === false ) return;
_face.id = object.id; if ( material.side === THREE.DoubleSide || checkBackfaceCulling( v1, v2, v3 ) === true ) {
_face.priority = face.priority;
_face.v1.copy( v1 );
_face.v2.copy( v2 );
_face.v3.copy( v3 );
_face.z = ( v1.positionScreen.z + v2.positionScreen.z + v3.positionScreen.z ) / 3;
for ( var i = 0; i < 3; i ++ ) { _face = getNextFaceInPool();
var offset = arguments[ i ] * 3; _face.id = object.id;
var normal = _face.vertexNormalsModel[ i ]; _face.v1.copy( v1 );
_face.v2.copy( v2 );
_face.v3.copy( v3 );
_face.z = ( v1.positionScreen.z + v2.positionScreen.z + v3.positionScreen.z ) / 3;
_face.renderOrder = object.renderOrder;
normal.set( normals[ offset ], normals[ offset + 1 ], normals[ offset + 2 ] ); // use first vertex normal as face normal
normal.applyMatrix3( normalMatrix ).normalize();
var offset2 = arguments[ i ] * 2; _face.normalModel.fromArray( normals, a * 3 );
_face.normalModel.applyMatrix3( normalMatrix ).normalize();
var uv = _face.uvs[ i ]; for ( var i = 0; i < 3; i ++ ) {
uv.set( uvs[ offset2 ], uvs[ offset2 + 1 ] );
} var normal = _face.vertexNormalsModel[ i ];
normal.fromArray( normals, arguments[ i ] * 3 );
normal.applyMatrix3( normalMatrix ).normalize();
_face.vertexNormalsLength = 3; var uv = _face.uvs[ i ];
uv.fromArray( uvs, arguments[ i ] * 2 );
_face.material = object.material; }
_renderData.elements.push( _face ); _face.vertexNormalsLength = 3;
} _face.material = object.material;
}; _renderData.elements.push( _face );
return { }
setObject: setObject,
projectVertex: projectVertex,
checkTriangleVisibility: checkTriangleVisibility,
checkBackfaceCulling: checkBackfaceCulling,
pushVertex: pushVertex,
pushNormal: pushNormal,
pushUv: pushUv,
pushLine: pushLine,
pushTriangle: pushTriangle
};
}; }
var renderList = new RenderList(); return {
setObject: setObject,
projectVertex: projectVertex,
checkTriangleVisibility: checkTriangleVisibility,
checkBackfaceCulling: checkBackfaceCulling,
pushVertex: pushVertex,
pushNormal: pushNormal,
pushUv: pushUv,
pushLine: pushLine,
pushTriangle: pushTriangle
}
this.projectScene = function ( scene, camera, sortObjects, sortElements ) { };
_faceCount = 0; var renderList = new RenderList();
_lineCount = 0;
_spriteCount = 0;
_renderData.elements.length = 0; this.projectScene = function ( scene, camera, sortObjects, sortElements ) {
_camera = camera;
if ( scene.autoUpdate === true ) scene.updateMatrixWorld(); _faceCount = 0;
if ( camera.parent === undefined ) camera.updateMatrixWorld(); _lineCount = 0;
_spriteCount = 0;
_viewMatrix.copy( camera.matrixWorldInverse.getInverse( camera.matrixWorld ) ); _renderData.elements.length = 0;
_viewProjectionMatrix.multiplyMatrices( camera.projectionMatrix, _viewMatrix );
_camera = camera;
_frustum.setFromMatrix( _viewProjectionMatrix ); if ( scene.autoUpdate === true ) scene.updateMatrixWorld();
if ( camera.parent === null ) camera.updateMatrixWorld();
_objectCount = 0; _viewMatrix.copy( camera.matrixWorldInverse.getInverse( camera.matrixWorld ) );
_viewProjectionMatrix.multiplyMatrices( camera.projectionMatrix, _viewMatrix );
_renderData.objects.length = 0; _frustum.setFromMatrix( _viewProjectionMatrix );
_renderData.lights.length = 0;
//
_objectCount = 0;
_renderData.objects.length = 0;
_renderData.lights.length = 0;
function addObject( object ) {
scene.traverseVisible( function ( object ) { _object = getNextObjectInPool();
_object.id = object.id;
_object.object = object;
if ( object instanceof THREE.Light ) { _vector3.setFromMatrixPosition( object.matrixWorld );
_vector3.applyProjection( _viewProjectionMatrix );
_object.z = _vector3.z;
_object.renderOrder = object.renderOrder;
_renderData.objects.push( _object );
}
_renderData.lights.push( object ); scene.traverseVisible( function ( object ) {
} else if ( object instanceof THREE.Mesh || object instanceof THREE.Line || object instanceof THREE.Sprite ) { if ( object instanceof THREE.Light ) {
if ( object.material.visible === false ) return; _renderData.lights.push( object );
if ( object.frustumCulled === false || _frustum.intersectsObject( object ) === true ) { } else if ( object instanceof THREE.Mesh || object instanceof THREE.Line ) {
_object = getNextObjectInPool(); if ( object.material.visible === false ) return;
_object.id = object.id; if ( object.frustumCulled === true && _frustum.intersectsObject( object ) === false ) return;
_object.object = object;
_vector3.setFromMatrixPosition( object.matrixWorld ); addObject( object );
_vector3.applyProjection( _viewProjectionMatrix );
_object.z = _vector3.z;
_renderData.objects.push( _object ); } else if ( object instanceof THREE.Sprite ) {
} if ( object.material.visible === false ) return;
if ( object.frustumCulled === true && _frustum.intersectsSprite( object ) === false ) return;
} addObject( object );
} ); }
} );
if ( sortObjects === true ) {
_renderData.objects.sort( painterSort );
}
if ( sortObjects === true ) { //
_renderData.objects.sort( customSort ); for ( var o = 0, ol = _renderData.objects.length; o < ol; o ++ ) {
} var object = _renderData.objects[ o ].object;
var geometry = object.geometry;
for ( var o = 0, ol = _renderData.objects.length; o < ol; o ++ ) { renderList.setObject( object );
var object = _renderData.objects[ o ].object; _modelMatrix = object.matrixWorld;
var geometry = object.geometry;
renderList.setObject( object ); _vertexCount = 0;
_modelMatrix = object.matrixWorld; if ( object instanceof THREE.Mesh ) {
_vertexCount = 0; if ( geometry instanceof THREE.BufferGeometry ) {
if ( object instanceof THREE.Mesh ) { var attributes = geometry.attributes;
var groups = geometry.groups;
if ( geometry instanceof THREE.BufferGeometry ) { if ( attributes.position === undefined ) continue;
var attributes = geometry.attributes; var positions = attributes.position.array;
var offsets = geometry.offsets;
if ( attributes.position === undefined ) continue; for ( var i = 0, l = positions.length; i < l; i += 3 ) {
var positions = attributes.position.array; renderList.pushVertex( positions[ i ], positions[ i + 1 ], positions[ i + 2 ] );
for (i = 0, l = positions.length; i < l; i += 3 ) { }
renderList.pushVertex( positions[ i ], positions[ i + 1 ], positions[ i + 2 ] ); if ( attributes.normal !== undefined ) {
} var normals = attributes.normal.array;
if ( attributes.normal !== undefined ) { for ( var i = 0, l = normals.length; i < l; i += 3 ) {
var normals = attributes.normal.array; renderList.pushNormal( normals[ i ], normals[ i + 1 ], normals[ i + 2 ] );
for ( i = 0, l = normals.length; i < l; i += 3 ) { }
renderList.pushNormal( normals[ i ], normals[ i + 1 ], normals[ i + 2 ] ); }
} if ( attributes.uv !== undefined ) {
} var uvs = attributes.uv.array;
if ( attributes.uv !== undefined ) { for ( var i = 0, l = uvs.length; i < l; i += 2 ) {
var uvs = attributes.uv.array; renderList.pushUv( uvs[ i ], uvs[ i + 1 ] );
for ( i = 0, l = uvs.length; i < l; i += 2 ) { }
renderList.pushUv( uvs[ i ], uvs[ i + 1 ] ); }
} if ( geometry.index !== null ) {
} var indices = geometry.index.array;
if ( attributes.index !== undefined ) { if ( groups.length > 0 ) {
var indices = attributes.index.array; for ( var o = 0; o < groups.length; o ++ ) {
if ( offsets.length > 0 ) { var group = groups[ o ];
for ( o = 0; o < offsets.length; o ++ ) { for ( var i = group.start, l = group.start + group.count; i < l; i += 3 ) {
var offset = offsets[ o ]; renderList.pushTriangle( indices[ i ], indices[ i + 1 ], indices[ i + 2 ] );
var index = offset.index;
for ( i = offset.start, l = offset.start + offset.count; i < l; i += 3 ) { }
renderList.pushTriangle( indices[ i ] + index, indices[ i + 1 ] + index, indices[ i + 2 ] + index ); }
} } else {
} for ( var i = 0, l = indices.length; i < l; i += 3 ) {
} else { renderList.pushTriangle( indices[ i ], indices[ i + 1 ], indices[ i + 2 ] );
for ( i = 0, l = indices.length; i < l; i += 3 ) { }
renderList.pushTriangle( indices[ i ], indices[ i + 1 ], indices[ i + 2 ] ); }
} } else {
} for ( var i = 0, l = positions.length / 3; i < l; i += 3 ) {
} else { renderList.pushTriangle( i, i + 1, i + 2 );
for ( i = 0, l = positions.length / 3; i < l; i += 3 ) { }
renderList.pushTriangle( i, i + 1, i + 2 ); }
} } else if ( geometry instanceof THREE.Geometry ) {
} var vertices = geometry.vertices;
var faces = geometry.faces;
var faceVertexUvs = geometry.faceVertexUvs[ 0 ];
} else if ( geometry instanceof THREE.Geometry ) { _normalMatrix.getNormalMatrix( _modelMatrix );
var vertices = geometry.vertices; var material = object.material;
var faces = geometry.faces;
var faceVertexUvs = geometry.faceVertexUvs[ 0 ];
_normalMatrix.getNormalMatrix( _modelMatrix ); var isFaceMaterial = material instanceof THREE.MultiMaterial;
var objectMaterials = isFaceMaterial === true ? object.material : null;
var isFaceMaterial = object.material instanceof THREE.MeshFaceMaterial; for ( var v = 0, vl = vertices.length; v < vl; v ++ ) {
var objectMaterials = isFaceMaterial === true ? object.material : null;
for ( var v = 0, vl = vertices.length; v < vl; v ++ ) { var vertex = vertices[ v ];
var vertex = vertices[ v ]; _vector3.copy( vertex );
renderList.pushVertex( vertex.x, vertex.y, vertex.z );
} if ( material.morphTargets === true ) {
for ( var f = 0, fl = faces.length; f < fl; f ++ ) { var morphTargets = geometry.morphTargets;
var morphInfluences = object.morphTargetInfluences;
var face = faces[ f ]; for ( var t = 0, tl = morphTargets.length; t < tl; t ++ ) {
var material; var influence = morphInfluences[ t ];
if(isFaceMaterial === true){
material = objectMaterials.materials[ face.materialIndex ];
} else {
material = object.material;
}
if ( material === undefined ) continue; if ( influence === 0 ) continue;
var side = material.side; var target = morphTargets[ t ];
var targetVertex = target.vertices[ v ];
var v1 = _vertexPool[ face.a ]; _vector3.x += ( targetVertex.x - vertex.x ) * influence;
var v2 = _vertexPool[ face.b ]; _vector3.y += ( targetVertex.y - vertex.y ) * influence;
var v3 = _vertexPool[ face.c ]; _vector3.z += ( targetVertex.z - vertex.z ) * influence;
if ( material.morphTargets === true ) { }
var morphTargets = geometry.morphTargets; }
var morphInfluences = object.morphTargetInfluences;
var v1p = v1.position; renderList.pushVertex( _vector3.x, _vector3.y, _vector3.z );
var v2p = v2.position;
var v3p = v3.position;
_vA.set( 0, 0, 0 ); }
_vB.set( 0, 0, 0 );
_vC.set( 0, 0, 0 );
for ( var t = 0, tl = morphTargets.length; t < tl; t ++ ) { for ( var f = 0, fl = faces.length; f < fl; f ++ ) {
var influence = morphInfluences[ t ]; var face = faces[ f ];
if ( influence === 0 ) continue; material = isFaceMaterial === true
? objectMaterials.materials[ face.materialIndex ]
: object.material;
var targets = morphTargets[ t ].vertices; if ( material === undefined ) continue;
_vA.x += ( targets[ face.a ].x - v1p.x ) * influence; var side = material.side;
_vA.y += ( targets[ face.a ].y - v1p.y ) * influence;
_vA.z += ( targets[ face.a ].z - v1p.z ) * influence;
_vB.x += ( targets[ face.b ].x - v2p.x ) * influence; var v1 = _vertexPool[ face.a ];
_vB.y += ( targets[ face.b ].y - v2p.y ) * influence; var v2 = _vertexPool[ face.b ];
_vB.z += ( targets[ face.b ].z - v2p.z ) * influence; var v3 = _vertexPool[ face.c ];
_vC.x += ( targets[ face.c ].x - v3p.x ) * influence; if ( renderList.checkTriangleVisibility( v1, v2, v3 ) === false ) continue;
_vC.y += ( targets[ face.c ].y - v3p.y ) * influence;
_vC.z += ( targets[ face.c ].z - v3p.z ) * influence;
} var visible = renderList.checkBackfaceCulling( v1, v2, v3 );
v1.position.add( _vA ); if ( side !== THREE.DoubleSide ) {
v2.position.add( _vB );
v3.position.add( _vC );
renderList.projectVertex( v1 ); if ( side === THREE.FrontSide && visible === false ) continue;
renderList.projectVertex( v2 ); if ( side === THREE.BackSide && visible === true ) continue;
renderList.projectVertex( v3 );
} }
if ( renderList.checkTriangleVisibility( v1, v2, v3 ) === false ) continue; _face = getNextFaceInPool();
var visible = renderList.checkBackfaceCulling( v1, v2, v3 ); _face.id = object.id;
_face.v1.copy( v1 );
_face.v2.copy( v2 );
_face.v3.copy( v3 );
if ( side !== THREE.DoubleSide ) { _face.normalModel.copy( face.normal );
if ( side === THREE.FrontSide && visible === false ) continue;
if ( side === THREE.BackSide && visible === true ) continue;
}
_face = getNextFaceInPool(); if ( visible === false && ( side === THREE.BackSide || side === THREE.DoubleSide ) ) {
_face.id = object.id; _face.normalModel.negate();
_face.priority = face.priority;
_face.v1.copy( v1 );
_face.v2.copy( v2 );
_face.v3.copy( v3 );
_face.normalModel.copy( face.normal ); }
if ( visible === false && ( side === THREE.BackSide || side === THREE.DoubleSide ) ) { _face.normalModel.applyMatrix3( _normalMatrix ).normalize();
_face.normalModel.negate(); var faceVertexNormals = face.vertexNormals;
} for ( var n = 0, nl = Math.min( faceVertexNormals.length, 3 ); n < nl; n ++ ) {
_face.normalModel.applyMatrix3( _normalMatrix ).normalize(); var normalModel = _face.vertexNormalsModel[ n ];
normalModel.copy( faceVertexNormals[ n ] );
var faceVertexNormals = face.vertexNormals; if ( visible === false && ( side === THREE.BackSide || side === THREE.DoubleSide ) ) {
for ( var n = 0, nl = Math.min( faceVertexNormals.length, 3 ); n < nl; n ++ ) { normalModel.negate();
var normalModel = _face.vertexNormalsModel[ n ]; }
normalModel.copy( faceVertexNormals[ n ] );
if ( visible === false && ( side === THREE.BackSide || side === THREE.DoubleSide ) ) { normalModel.applyMatrix3( _normalMatrix ).normalize();
normalModel.negate(); }
} _face.vertexNormalsLength = faceVertexNormals.length;
normalModel.applyMatrix3( _normalMatrix ).normalize(); var vertexUvs = faceVertexUvs[ f ];
} if ( vertexUvs !== undefined ) {
_face.vertexNormalsLength = faceVertexNormals.length; for ( var u = 0; u < 3; u ++ ) {
var vertexUvs = faceVertexUvs[ f ]; _face.uvs[ u ].copy( vertexUvs[ u ] );
if ( vertexUvs !== undefined ) { }
for ( var u = 0; u < 3; u ++ ) { }
_face.uvs[ u ].copy( vertexUvs[ u ] ); _face.color = face.color;
_face.material = material;
} _face.z = ( v1.positionScreen.z + v2.positionScreen.z + v3.positionScreen.z ) / 3;
_face.renderOrder = object.renderOrder;
} _renderData.elements.push( _face );
_face.color = face.color; }
_face.material = material;
_face.z = ( v1.positionScreen.z + v2.positionScreen.z + v3.positionScreen.z ) / 3; }
_renderData.elements.push( _face ); } else if ( object instanceof THREE.Line ) {
} if ( geometry instanceof THREE.BufferGeometry ) {
} var attributes = geometry.attributes;
} else if ( object instanceof THREE.Line ) { if ( attributes.position !== undefined ) {
if ( geometry instanceof THREE.BufferGeometry ) { var positions = attributes.position.array;
var attributes = geometry.attributes; for ( var i = 0, l = positions.length; i < l; i += 3 ) {
if ( attributes.position !== undefined ) { renderList.pushVertex( positions[ i ], positions[ i + 1 ], positions[ i + 2 ] );
var positions = attributes.position.array; }
for ( i = 0, l = positions.length; i < l; i += 3 ) { if ( geometry.index !== null ) {
renderList.pushVertex( positions[ i ], positions[ i + 1 ], positions[ i + 2 ] ); var indices = geometry.index.array;
} for ( var i = 0, l = indices.length; i < l; i += 2 ) {
if ( attributes.index !== undefined ) { renderList.pushLine( indices[ i ], indices[ i + 1 ] );
var indices = attributes.index.array; }
for ( i = 0, l = indices.length; i < l; i += 2 ) { } else {
renderList.pushLine( indices[ i ], indices[ i + 1 ] ); var step = object instanceof THREE.LineSegments ? 2 : 1;
} for ( var i = 0, l = ( positions.length / 3 ) - 1; i < l; i += step ) {
} else { renderList.pushLine( i, i + 1 );
var step = object.mode === THREE.LinePieces ? 2 : 1; }
for ( i = 0, l = ( positions.length / 3 ) - 1; i < l; i += step ) { }
renderList.pushLine( i, i + 1 ); }
} } else if ( geometry instanceof THREE.Geometry ) {
} _modelViewProjectionMatrix.multiplyMatrices( _viewProjectionMatrix, _modelMatrix );
} var vertices = object.geometry.vertices;
} else if ( geometry instanceof THREE.Geometry ) { if ( vertices.length === 0 ) continue;
_modelViewProjectionMatrix.multiplyMatrices( _viewProjectionMatrix, _modelMatrix ); v1 = getNextVertexInPool();
v1.positionScreen.copy( vertices[ 0 ] ).applyMatrix4( _modelViewProjectionMatrix );
var vertices = object.geometry.vertices; var step = object instanceof THREE.LineSegments ? 2 : 1;
if ( vertices.length === 0 ) continue; for ( var v = 1, vl = vertices.length; v < vl; v ++ ) {
var v1 = getNextVertexInPool(); v1 = getNextVertexInPool();
v1.positionWorld.copy( vertices[ 0 ] ); v1.positionScreen.copy( vertices[ v ] ).applyMatrix4( _modelViewProjectionMatrix );
v1.positionScreen.copy( vertices[ 0 ] ).applyMatrix4( _modelViewProjectionMatrix );
// Handle LineStrip and LinePieces if ( ( v + 1 ) % step > 0 ) continue;
var step = object.mode === THREE.LinePieces ? 2 : 1;
for ( var v = 1, vl = vertices.length; v < vl; v ++ ) { v2 = _vertexPool[ _vertexCount - 2 ];
v1 = getNextVertexInPool(); _clippedVertex1PositionScreen.copy( v1.positionScreen );
v1.positionWorld.copy( vertices[ v ] ); _clippedVertex2PositionScreen.copy( v2.positionScreen );
v1.positionScreen.copy( vertices[ v ] ).applyMatrix4( _modelViewProjectionMatrix );
if ( ( v + 1 ) % step > 0 ) continue; if ( clipLine( _clippedVertex1PositionScreen, _clippedVertex2PositionScreen ) === true ) {
v2 = _vertexPool[ _vertexCount - 2 ]; // Perform the perspective divide
_clippedVertex1PositionScreen.multiplyScalar( 1 / _clippedVertex1PositionScreen.w );
_clippedVertex2PositionScreen.multiplyScalar( 1 / _clippedVertex2PositionScreen.w );
_clippedVertex1PositionScreen.copy( v1.positionScreen ); _line = getNextLineInPool();
_clippedVertex2PositionScreen.copy( v2.positionScreen );
if ( clipLine( _clippedVertex1PositionScreen, _clippedVertex2PositionScreen ) === true ) { _line.id = object.id;
_line.v1.positionScreen.copy( _clippedVertex1PositionScreen );
_line.v2.positionScreen.copy( _clippedVertex2PositionScreen );
// Perform the perspective divide _line.z = Math.max( _clippedVertex1PositionScreen.z, _clippedVertex2PositionScreen.z );
_clippedVertex1PositionScreen.multiplyScalar( 1 / _clippedVertex1PositionScreen.w ); _line.renderOrder = object.renderOrder;
_clippedVertex2PositionScreen.multiplyScalar( 1 / _clippedVertex2PositionScreen.w );
_line = getNextLineInPool(); _line.material = object.material;
_line.id = object.id; if ( object.material.vertexColors === THREE.VertexColors ) {
_line.v1.positionScreen.copy( _clippedVertex1PositionScreen );
_line.v1.positionWorld.copy( v1.positionWorld );
_line.v2.positionScreen.copy( _clippedVertex2PositionScreen );
_line.v2.positionWorld.copy( v2.positionWorld );
_line.z = Math.max( _clippedVertex1PositionScreen.z, _clippedVertex2PositionScreen.z ); _line.vertexColors[ 0 ].copy( object.geometry.colors[ v ] );
_line.vertexColors[ 1 ].copy( object.geometry.colors[ v - 1 ] );
_line.material = object.material; }
if ( object.material.vertexColors === THREE.VertexColors ) { _renderData.elements.push( _line );
_line.vertexColors[ 0 ].copy( object.geometry.colors[ v ] ); }
_line.vertexColors[ 1 ].copy( object.geometry.colors[ v - 1 ] );
} }
_renderData.elements.push( _line ); }
} } else if ( object instanceof THREE.Sprite ) {
} _vector4.set( _modelMatrix.elements[ 12 ], _modelMatrix.elements[ 13 ], _modelMatrix.elements[ 14 ], 1 );
_vector4.applyMatrix4( _viewProjectionMatrix );
} var invW = 1 / _vector4.w;
_vector4.z *= invW;
if ( _vector4.z >= - 1 && _vector4.z <= 1 ) {
_sprite = getNextSpriteInPool();
_sprite.id = object.id;
_sprite.x = _vector4.x * invW;
_sprite.y = _vector4.y * invW;
_sprite.z = _vector4.z;
_sprite.renderOrder = object.renderOrder;
_sprite.object = object;
_sprite.rotation = object.rotation;
_sprite.scale.x = object.scale.x * Math.abs( _sprite.x - ( _vector4.x + camera.projectionMatrix.elements[ 0 ] ) / ( _vector4.w + camera.projectionMatrix.elements[ 12 ] ) );
_sprite.scale.y = object.scale.y * Math.abs( _sprite.y - ( _vector4.y + camera.projectionMatrix.elements[ 5 ] ) / ( _vector4.w + camera.projectionMatrix.elements[ 13 ] ) );
_sprite.material = object.material;
_renderData.elements.push( _sprite );
}
}
}
} else if ( object instanceof THREE.Sprite ) { if ( sortElements === true ) {
_vector4.set( _modelMatrix.elements[ 12 ], _modelMatrix.elements[ 13 ], _modelMatrix.elements[ 14 ], 1 ); _renderData.elements.sort( painterSort );
_vector4.applyMatrix4( _viewProjectionMatrix );
var invW = 1 / _vector4.w; }
_vector4.z *= invW; //
// Build the BSP tree
var btree = new BSPTree(_renderData.elements);
_renderData.elements = btree.toArray();
//_renderData.elements.length = 15;
if ( _vector4.z >= - 1 && _vector4.z <= 1 ) { return _renderData;
_sprite = getNextSpriteInPool(); };
_sprite.id = object.id;
_sprite.x = _vector4.x * invW;
_sprite.y = _vector4.y * invW;
_sprite.z = _vector4.z;
_sprite.object = object;
_sprite.rotation = object.rotation; // Pools
_sprite.scale.x = object.scale.x * Math.abs( _sprite.x - ( _vector4.x + camera.projectionMatrix.elements[ 0 ] ) function getNextObjectInPool() {
/ ( _vector4.w + camera.projectionMatrix.elements[ 12 ] ) );
_sprite.scale.y = object.scale.y * Math.abs( _sprite.y - ( _vector4.y + camera.projectionMatrix.elements[ 5 ] )
/ ( _vector4.w + camera.projectionMatrix.elements[ 13 ] ) );
_sprite.material = object.material; if ( _objectCount === _objectPoolLength ) {
_renderData.elements.push( _sprite ); var object = new THREE.RenderableObject();
_objectPool.push( object );
_objectPoolLength ++;
_objectCount ++;
return object;
} }
} return _objectPool[ _objectCount ++ ];
} }
if ( sortElements === true ) { function getNextVertexInPool() {
//_renderData.elements.sort( customSort ); if ( _vertexCount === _vertexPoolLength ) {
} var vertex = new THREE.RenderableVertex();
_vertexPool.push( vertex );
// Build the BSP tree _vertexPoolLength ++;
var btree = new BSPTree(_renderData.elements); _vertexCount ++;
_renderData.elements = btree.toArray(); return vertex;
//_renderData.elements.length = 15;
return _renderData; }
}; return _vertexPool[ _vertexCount ++ ];
// Pools }
function getNextObjectInPool() { function getNextFaceInPool() {
if ( _objectCount === _objectPoolLength ) { if ( _faceCount === _facePoolLength ) {
var object = new Projector.RenderableObject(); var face = new THREE.RenderableFace();
_objectPool.push( object ); _facePool.push( face );
_objectPoolLength ++; _facePoolLength ++;
_objectCount ++; _faceCount ++;
return object; return face;
} }
return _objectPool[ _objectCount ++ ]; return _facePool[ _faceCount ++ ];
}
function getNextVertexInPool() { }
if ( _vertexCount === _vertexPoolLength ) { function getNextLineInPool() {
var vertex = new Projector.RenderableVertex(); if ( _lineCount === _linePoolLength ) {
_vertexPool.push( vertex );
_vertexPoolLength ++;
_vertexCount ++;
return vertex;
} var line = new THREE.RenderableLine();
_linePool.push( line );
_linePoolLength ++;
_lineCount ++;
return line;
return _vertexPool[ _vertexCount ++ ]; }
} return _linePool[ _lineCount ++ ];
function getNextFaceInPool() { }
if ( _faceCount === _facePoolLength ) { function getNextSpriteInPool() {
var face = new Projector.RenderableFace(); if ( _spriteCount === _spritePoolLength ) {
_facePool.push( face );
_facePoolLength ++;
_faceCount ++;
return face;
} var sprite = new THREE.RenderableSprite();
_spritePool.push( sprite );
_spritePoolLength ++;
_spriteCount ++;
return sprite;
return _facePool[ _faceCount ++ ]; }
return _spritePool[ _spriteCount ++ ];
} }
function getNextLineInPool() { //
if ( _lineCount === _linePoolLength ) { function painterSort( a, b ) {
var line = new Projector.RenderableLine(); if ( a.renderOrder !== b.renderOrder ) {
_linePool.push( line );
_linePoolLength ++;
_lineCount ++;
return line;
} return a.renderOrder - b.renderOrder;
return _linePool[ _lineCount ++ ]; } else if ( a.z !== b.z ) {
} return b.z - a.z;
function getNextSpriteInPool() { } else if ( a.id !== b.id ) {
if ( _spriteCount === _spritePoolLength ) { return a.id - b.id;
var sprite = new Projector.RenderableSprite(); } else {
_spritePool.push( sprite );
_spritePoolLength ++;
_spriteCount ++;
return sprite;
} return 0;
return _spritePool[ _spriteCount ++ ]; }
} }
function BSPTree(data){ //
function BSPTree(data){
if(data.length){ if(data.length){
this.root = BSPTree.utils.createNode(data[0]); this.root = BSPTree.utils.createNode(data[0]);
for(var i = 1; i < data.length; i++){ for(var i = 1; i < data.length; i++){
...@@ -907,12 +939,12 @@ define(['three'], function(THREE, BSPTree){ ...@@ -907,12 +939,12 @@ define(['three'], function(THREE, BSPTree){
} }
if(comparison === 1){ if(comparison === 1){
if(!compareWith.back){ if(!compareWith.back){
compareWith.back = node; compareWith.back = node;
} else { } else {
this.insert(node, compareWith.back); this.insert(node, compareWith.back);
} }
} else { } else {
if(!compareWith.front){ if(!compareWith.front){
compareWith.front = node; compareWith.front = node;
} else { } else {
...@@ -924,11 +956,11 @@ define(['three'], function(THREE, BSPTree){ ...@@ -924,11 +956,11 @@ define(['three'], function(THREE, BSPTree){
BSPTree.prototype.toArray = function(){ BSPTree.prototype.toArray = function(){
var output = []; var output = [];
if(this.root){ if(this.root){
this.root.traverse(function(elem){ this.root.traverse(function(elem){
output.push(elem); output.push(elem);
}); });
} }
return output; return output;
} }
...@@ -1030,21 +1062,21 @@ define(['three'], function(THREE, BSPTree){ ...@@ -1030,21 +1062,21 @@ define(['three'], function(THREE, BSPTree){
} }
} }
BSPTree.Node.prototype.traverse = function(callback){ BSPTree.Node.prototype.traverse = function(callback){
if(!callback){ if(!callback){
return; return;
} }
if(this.back){ if(this.back){
this.back.traverse(callback); this.back.traverse(callback);
} }
callback(this.element); callback(this.element);
if(this.front){ if(this.front){
this.front.traverse(callback); this.front.traverse(callback);
} }
} }
BSPTree.LineNode = function(element){ BSPTree.LineNode = function(element){
...@@ -1067,22 +1099,22 @@ define(['three'], function(THREE, BSPTree){ ...@@ -1067,22 +1099,22 @@ define(['three'], function(THREE, BSPTree){
} }
BSPTree.LineNode.prototype.getSign = function(normal, pointOnPlane){ BSPTree.LineNode.prototype.getSign = function(normal, pointOnPlane){
var s1 = BSPTree.utils.getPointSign(normal, this.element.v1.positionWorld, pointOnPlane); var s1 = BSPTree.utils.getPointSign(normal, this.element.v1.positionWorld, pointOnPlane);
var s2 = BSPTree.utils.getPointSign(normal, this.element.v2.positionWorld, pointOnPlane); var s2 = BSPTree.utils.getPointSign(normal, this.element.v2.positionWorld, pointOnPlane);
var sMax = Math.max(s1, s2); var sMax = Math.max(s1, s2);
var sMin = Math.min(s1, s2); var sMin = Math.min(s1, s2);
switch(Math.abs(sMax-sMin)){ switch(Math.abs(sMax-sMin)){
case 0: case 0:
return sMax; return sMax;
case 1: case 1:
return sMax || sMin; return sMax || sMin;
case 2: case 2:
return undefined; return undefined;
default: default:
throw new Error('It looks like some unexpected FP error!'); throw new Error('It looks like some unexpected FP error!');
} }
} }
BSPTree.LineNode.prototype.separate = function(normal, point){ BSPTree.LineNode.prototype.separate = function(normal, point){
...@@ -1130,19 +1162,19 @@ define(['three'], function(THREE, BSPTree){ ...@@ -1130,19 +1162,19 @@ define(['three'], function(THREE, BSPTree){
var s2 = BSPTree.utils.getPointSign(normal, this.element.v2.positionWorld, pointOnPlane); var s2 = BSPTree.utils.getPointSign(normal, this.element.v2.positionWorld, pointOnPlane);
var s3 = BSPTree.utils.getPointSign(normal, this.element.v3.positionWorld, pointOnPlane); var s3 = BSPTree.utils.getPointSign(normal, this.element.v3.positionWorld, pointOnPlane);
var sMax = Math.max(s1, s2, s3); var sMax = Math.max(s1, s2, s3);
var sMin = Math.min(s1, s2, s3); var sMin = Math.min(s1, s2, s3);
switch(Math.abs(sMax-sMin)){ switch(Math.abs(sMax-sMin)){
case 0: case 0:
return sMax; return sMax;
case 1: case 1:
return sMax || sMin; return sMax || sMin;
case 2: case 2:
return undefined; return undefined;
default: default:
throw new Error('It looks like some unexpected FP error!'); throw new Error('It looks like some unexpected FP error!');
} }
} }
BSPTree.TriangleNode.prototype.separate = function(normal, pointOnPlane){ BSPTree.TriangleNode.prototype.separate = function(normal, pointOnPlane){
...@@ -1172,19 +1204,19 @@ define(['three'], function(THREE, BSPTree){ ...@@ -1172,19 +1204,19 @@ define(['three'], function(THREE, BSPTree){
if(BSPTree.utils.pointsEqual(i12, i23)){ if(BSPTree.utils.pointsEqual(i12, i23)){
vertex.position = i31; vertex.position = i31;
BSPTree.utils.projectVertex(vertex); BSPTree.utils.projectVertex(vertex);
this.element.v3.copy(vertex); this.element.v3.copy(vertex);
newTriangle.v1 = vertex; newTriangle.v1 = vertex;
} else if(BSPTree.utils.pointsEqual(i23, i31)){ } else if(BSPTree.utils.pointsEqual(i23, i31)){
vertex.position = i12; vertex.position = i12;
BSPTree.utils.projectVertex(vertex); BSPTree.utils.projectVertex(vertex);
this.element.v1.copy(vertex); this.element.v1.copy(vertex);
newTriangle.v2 = vertex; newTriangle.v2 = vertex;
} else { } else {
vertex.position = i23; vertex.position = i23;
BSPTree.utils.projectVertex(vertex); BSPTree.utils.projectVertex(vertex);
this.element.v2.copy(vertex); this.element.v2.copy(vertex);
newTriangle.v3 = vertex; newTriangle.v3 = vertex;
...@@ -1205,8 +1237,8 @@ define(['three'], function(THREE, BSPTree){ ...@@ -1205,8 +1237,8 @@ define(['three'], function(THREE, BSPTree){
if(!i12){ if(!i12){
this.element.v1.position = i31; this.element.v1.position = i31;
this.element.v2.position = i23; this.element.v2.position = i23;
BSPTree.utils.projectVertex(this.element.v1); BSPTree.utils.projectVertex(this.element.v1);
BSPTree.utils.projectVertex(this.element.v2); BSPTree.utils.projectVertex(this.element.v2);
t1.v2.copy(this.element.v2); t1.v2.copy(this.element.v2);
t1.v3.copy(this.element.v1); t1.v3.copy(this.element.v1);
...@@ -1214,24 +1246,24 @@ define(['three'], function(THREE, BSPTree){ ...@@ -1214,24 +1246,24 @@ define(['three'], function(THREE, BSPTree){
t2.v3.copy(this.element.v2); t2.v3.copy(this.element.v2);
} else if(!i23){ } else if(!i23){
this.element.v2.position = i12; this.element.v2.position = i12;
this.element.v3.position = i31; this.element.v3.position = i31;
BSPTree.utils.projectVertex(this.element.v2); BSPTree.utils.projectVertex(this.element.v2);
BSPTree.utils.projectVertex(this.element.v3); BSPTree.utils.projectVertex(this.element.v3);
t1.v1.copy(this.element.v2); t1.v1.copy(this.element.v2);
t1.v3.copy(this.element.v3); t1.v3.copy(this.element.v3);
t2.v1.copy(this.element.v3); t2.v1.copy(this.element.v3);
} else { } else {
this.element.v1.position = i12; this.element.v1.position = i12;
this.element.v3.position = i23; this.element.v3.position = i23;
BSPTree.utils.projectVertex(this.element.v1); BSPTree.utils.projectVertex(this.element.v1);
BSPTree.utils.projectVertex(this.element.v3); BSPTree.utils.projectVertex(this.element.v3);
t1.v1.copy(this.element.v1); t1.v1.copy(this.element.v1);
t1.v2.copy(this.element.v3); t1.v2.copy(this.element.v3);
t2.v2.copy(this.element.v1); t2.v2.copy(this.element.v1);
} }
return [ return [
...@@ -1241,99 +1273,82 @@ define(['three'], function(THREE, BSPTree){ ...@@ -1241,99 +1273,82 @@ define(['three'], function(THREE, BSPTree){
] ]
} }
} }
//
function painterSort(a, b){
if ( a.z !== b.z ) {
return b.z - a.z;
// Fallback: compare ids
} else if ( a.id !== b.id ) {
return a.id - b.id;
} else {
// Faces seem to be equal!
return 0;
}
}
function clipLine( s1, s2 ) { function clipLine( s1, s2 ) {
var alpha1 = 0, alpha2 = 1, var alpha1 = 0, alpha2 = 1,
// Calculate the boundary coordinate of each vertex for the near and far clip planes, // Calculate the boundary coordinate of each vertex for the near and far clip planes,
// Z = -1 and Z = +1, respectively. // Z = -1 and Z = +1, respectively.
bc1near = s1.z + s1.w, bc1near = s1.z + s1.w,
bc2near = s2.z + s2.w, bc2near = s2.z + s2.w,
bc1far = - s1.z + s1.w, bc1far = - s1.z + s1.w,
bc2far = - s2.z + s2.w; bc2far = - s2.z + s2.w;
if ( bc1near >= 0 && bc2near >= 0 && bc1far >= 0 && bc2far >= 0 ) { if ( bc1near >= 0 && bc2near >= 0 && bc1far >= 0 && bc2far >= 0 ) {
// Both vertices lie entirely within all clip planes. // Both vertices lie entirely within all clip planes.
return true; return true;
} else if ( ( bc1near < 0 && bc2near < 0 ) || ( bc1far < 0 && bc2far < 0 ) ) { } else if ( ( bc1near < 0 && bc2near < 0 ) || ( bc1far < 0 && bc2far < 0 ) ) {
// Both vertices lie entirely outside one of the clip planes. // Both vertices lie entirely outside one of the clip planes.
return false; return false;
} else { } else {
// The line segment spans at least one clip plane. // The line segment spans at least one clip plane.
if ( bc1near < 0 ) { if ( bc1near < 0 ) {
// v1 lies outside the near plane, v2 inside // v1 lies outside the near plane, v2 inside
alpha1 = Math.max( alpha1, bc1near / ( bc1near - bc2near ) ); alpha1 = Math.max( alpha1, bc1near / ( bc1near - bc2near ) );
} else if ( bc2near < 0 ) { } else if ( bc2near < 0 ) {
// v2 lies outside the near plane, v1 inside // v2 lies outside the near plane, v1 inside
alpha2 = Math.min( alpha2, bc1near / ( bc1near - bc2near ) ); alpha2 = Math.min( alpha2, bc1near / ( bc1near - bc2near ) );
} }
if ( bc1far < 0 ) { if ( bc1far < 0 ) {
// v1 lies outside the far plane, v2 inside // v1 lies outside the far plane, v2 inside
alpha1 = Math.max( alpha1, bc1far / ( bc1far - bc2far ) ); alpha1 = Math.max( alpha1, bc1far / ( bc1far - bc2far ) );
} else if ( bc2far < 0 ) { } else if ( bc2far < 0 ) {
// v2 lies outside the far plane, v2 inside // v2 lies outside the far plane, v2 inside
alpha2 = Math.min( alpha2, bc1far / ( bc1far - bc2far ) ); alpha2 = Math.min( alpha2, bc1far / ( bc1far - bc2far ) );
} }
if ( alpha2 < alpha1 ) { if ( alpha2 < alpha1 ) {
// The line segment spans two boundaries, but is outside both of them. // The line segment spans two boundaries, but is outside both of them.
// (This can't happen when we're only clipping against just near/far but good // (This can't happen when we're only clipping against just near/far but good
// to leave the check here for future usage if other clip planes are added.) // to leave the check here for future usage if other clip planes are added.)
return false; return false;
} else { } else {
// Update the s1 and s2 vertices to match the clipped line segment. // Update the s1 and s2 vertices to match the clipped line segment.
s1.lerp( s2, alpha1 ); s1.lerp( s2, alpha1 );
s2.lerp( s1, 1 - alpha2 ); s2.lerp( s1, 1 - alpha2 );
return true; return true;
} }
} }
} }
}; };
return Projector; return { Projector: THREE.Projector };
}); });
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