mirror of
https://github.com/wahyd4/three.js.git
synced 2026-08-28 22:35:59 +10:00
Optimized initalization of ShadowVolumes by using supplied edge information (if available)
This commit is contained in:
Mikael Emtinger
+158
-13
@@ -2,12 +2,20 @@
|
||||
* @author mikael emtinger / http://gomo.se/
|
||||
*/
|
||||
|
||||
THREE.ShadowVolume = function( mesh, isStatic ) {
|
||||
THREE.ShadowVolume = function( meshOrGeometry, isStatic ) {
|
||||
|
||||
THREE.Mesh.call( this, mesh.geometry, isStatic ? [ new THREE.ShadowVolumeDynamicMaterial() ] : [ new THREE.ShadowVolumeDynamicMaterial() ] );
|
||||
mesh.addChild( this );
|
||||
|
||||
this.calculateShadowVolumeGeometry( mesh.geometry );
|
||||
if( meshOrGeometry instanceof THREE.Mesh ) {
|
||||
|
||||
THREE.Mesh.call( this, meshOrGeometry.geometry, isStatic ? [ new THREE.ShadowVolumeDynamicMaterial() ] : [ new THREE.ShadowVolumeDynamicMaterial() ] );
|
||||
meshOrGeometry.addChild( this );
|
||||
|
||||
} else {
|
||||
|
||||
THREE.Mesh.call( this, meshOrGeometry, isStatic ? [ new THREE.ShadowVolumeDynamicMaterial() ] : [ new THREE.ShadowVolumeDynamicMaterial() ] );
|
||||
|
||||
}
|
||||
|
||||
this.calculateShadowVolumeGeometry();
|
||||
|
||||
};
|
||||
|
||||
@@ -17,10 +25,153 @@ THREE.ShadowVolume.prototype.supr = THREE.Mesh.prototype;
|
||||
|
||||
|
||||
/*
|
||||
* Calculate Geometry
|
||||
* Calculate Shadow Faces
|
||||
*/
|
||||
|
||||
THREE.ShadowVolume.prototype.calculateShadowVolumeGeometry = function( originalGeometry ) {
|
||||
THREE.ShadowVolume.prototype.calculateShadowVolumeGeometry = function() {
|
||||
|
||||
if( this.geometry.edges && this.geometry.edges.length ) {
|
||||
|
||||
var f, fl, face, faceA, faceB, faceAIndex, faceBIndex, vertexA, vertexB;
|
||||
var faceACombination, faceBCombination;
|
||||
var faceAvertexAIndex, faceAvertexBIndex, faceBvertexAIndex, faceBvertexBIndex;
|
||||
var e, el, edge, temp;
|
||||
|
||||
var newGeometry = new THREE.Geometry();
|
||||
var vertices = newGeometry.vertices = this.geometry.vertices;
|
||||
var faces = newGeometry.faces = this.geometry.faces;
|
||||
var edges = newGeometry.egdes = this.geometry.edges;
|
||||
var edgeFaces = newGeometry.edgeFaces = [];
|
||||
|
||||
var vertexOffset = 0;
|
||||
var vertexOffsetPerFace = [];
|
||||
|
||||
for( f = 0, fl = faces.length; f < fl; f++ ) {
|
||||
|
||||
face = faces[ f ];
|
||||
|
||||
// calculate faces vertex offset
|
||||
|
||||
vertexOffsetPerFace.push( vertexOffset );
|
||||
vertexOffset += face instanceof THREE.Face3 ? 3 : 4;
|
||||
|
||||
// set vertex normals to face normal
|
||||
|
||||
face.vertexNormals[ 0 ] = face.normal;
|
||||
face.vertexNormals[ 1 ] = face.normal;
|
||||
face.vertexNormals[ 2 ] = face.normal;
|
||||
|
||||
if( face instanceof THREE.Face4 ) face.vertexNormals[ 3 ] = face.normal;
|
||||
|
||||
}
|
||||
|
||||
|
||||
// setup edge faces
|
||||
|
||||
for( e = 0, el = edges.length; e < el; e++ ) {
|
||||
|
||||
edge = edges[ e ];
|
||||
|
||||
faceA = edge.faces[ 0 ];
|
||||
faceB = edge.faces[ 1 ];
|
||||
|
||||
faceAIndex = edge.faceIndices[ 0 ];
|
||||
faceBIndex = edge.faceIndices[ 1 ];
|
||||
|
||||
vertexA = edge.vertexIndices[ 0 ];
|
||||
vertexB = edge.vertexIndices[ 1 ];
|
||||
|
||||
// find combination and processed vertex index (vertices are split up by renderer)
|
||||
|
||||
if( faceA.a === vertexA ) { faceACombination = "a"; faceAvertexAIndex = vertexOffsetPerFace[ faceAIndex ] + 0; }
|
||||
else if( faceA.b === vertexA ) { faceACombination = "b"; faceAvertexAIndex = vertexOffsetPerFace[ faceAIndex ] + 1; }
|
||||
else if( faceA.c === vertexA ) { faceACombination = "c"; faceAvertexAIndex = vertexOffsetPerFace[ faceAIndex ] + 2; }
|
||||
else if( faceA.d === vertexA ) { faceACombination = "d"; faceAvertexAIndex = vertexOffsetPerFace[ faceAIndex ] + 3; }
|
||||
|
||||
if( faceA.a === vertexB ) { faceACombination += "a"; faceAvertexBIndex = vertexOffsetPerFace[ faceAIndex ] + 0; }
|
||||
else if( faceA.b === vertexB ) { faceACombination += "b"; faceAvertexBIndex = vertexOffsetPerFace[ faceAIndex ] + 1; }
|
||||
else if( faceA.c === vertexB ) { faceACombination += "c"; faceAvertexBIndex = vertexOffsetPerFace[ faceAIndex ] + 2; }
|
||||
else if( faceA.d === vertexB ) { faceACombination += "d"; faceAvertexBIndex = vertexOffsetPerFace[ faceAIndex ] + 3; }
|
||||
|
||||
if( faceB.a === vertexA ) { faceBCombination = "a"; faceBvertexAIndex = vertexOffsetPerFace[ faceBIndex ] + 0; }
|
||||
else if( faceB.b === vertexA ) { faceBCombination = "b"; faceBvertexAIndex = vertexOffsetPerFace[ faceBIndex ] + 1; }
|
||||
else if( faceB.c === vertexA ) { faceBCombination = "c"; faceBvertexAIndex = vertexOffsetPerFace[ faceBIndex ] + 2; }
|
||||
else if( faceB.d === vertexA ) { faceBCombination = "d"; faceBvertexAIndex = vertexOffsetPerFace[ faceBIndex ] + 3; }
|
||||
|
||||
if( faceB.a === vertexB ) { faceBCombination += "a"; faceBvertexBIndex = vertexOffsetPerFace[ faceBIndex ] + 0; }
|
||||
else if( faceB.b === vertexB ) { faceBCombination += "b"; faceBvertexBIndex = vertexOffsetPerFace[ faceBIndex ] + 1; }
|
||||
else if( faceB.c === vertexB ) { faceBCombination += "c"; faceBvertexBIndex = vertexOffsetPerFace[ faceBIndex ] + 2; }
|
||||
else if( faceB.d === vertexB ) { faceBCombination += "d"; faceBvertexBIndex = vertexOffsetPerFace[ faceBIndex ] + 3; }
|
||||
|
||||
if( faceACombination === "ac" ||
|
||||
faceACombination === "ad" ||
|
||||
faceACombination === "ca" ||
|
||||
faceACombination === "da" ) {
|
||||
|
||||
if( faceAvertexAIndex > faceAvertexBIndex ) {
|
||||
|
||||
temp = faceAvertexAIndex;
|
||||
faceAvertexAIndex = faceAvertexBIndex;
|
||||
faceAvertexBIndex = temp;
|
||||
|
||||
}
|
||||
|
||||
} else {
|
||||
|
||||
if( faceAvertexAIndex < faceAvertexBIndex ) {
|
||||
|
||||
temp = faceAvertexAIndex;
|
||||
faceAvertexAIndex = faceAvertexBIndex;
|
||||
faceAvertexBIndex = temp;
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
if( faceBCombination === "ac" ||
|
||||
faceBCombination === "ad" ||
|
||||
faceBCombination === "ca" ||
|
||||
faceBCombination === "da" ) {
|
||||
|
||||
if( faceBvertexAIndex > faceBvertexBIndex ) {
|
||||
|
||||
temp = faceBvertexAIndex;
|
||||
faceBvertexAIndex = faceBvertexBIndex;
|
||||
faceBvertexBIndex = temp;
|
||||
|
||||
}
|
||||
|
||||
} else {
|
||||
|
||||
if( faceBvertexAIndex < faceBvertexBIndex ) {
|
||||
|
||||
temp = faceBvertexAIndex;
|
||||
faceBvertexAIndex = faceBvertexBIndex;
|
||||
faceBvertexBIndex = temp;
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
||||
|
||||
face = new THREE.Face4( faceAvertexAIndex, faceAvertexBIndex, faceBvertexAIndex, faceBvertexBIndex );
|
||||
face.normal.set( 1, 0, 0 );
|
||||
edgeFaces.push( face );
|
||||
|
||||
}
|
||||
|
||||
this.geometry = newGeometry;
|
||||
|
||||
} else {
|
||||
|
||||
this.calculateShadowVolumeGeometryWithoutEdgeInfo( this.geometry );
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
THREE.ShadowVolume.prototype.calculateShadowVolumeGeometryWithoutEdgeInfo = function( originalGeometry ) {
|
||||
|
||||
// create geometry
|
||||
|
||||
@@ -103,11 +254,6 @@ THREE.ShadowVolume.prototype.calculateShadowVolumeGeometry = function( originalG
|
||||
};
|
||||
|
||||
|
||||
|
||||
/*
|
||||
* Faces share edge?
|
||||
*/
|
||||
|
||||
THREE.ShadowVolume.prototype.facesShareEdge = function( vertices, faceA, faceB ) {
|
||||
|
||||
var indicesA,
|
||||
@@ -199,4 +345,3 @@ THREE.ShadowVolume.prototype.facesShareEdge = function( vertices, faceA, faceB )
|
||||
return undefined;
|
||||
|
||||
};
|
||||
|
||||
|
||||
@@ -748,7 +748,7 @@ THREE.WebGLRenderer = function ( parameters ) {
|
||||
obj_skinVerticesB = geometry.skinVerticesB,
|
||||
obj_skinIndices = geometry.skinIndices,
|
||||
obj_skinWeights = geometry.skinWeights,
|
||||
obj_edgeFaces = geometry.edgeFaces,
|
||||
obj_edgeFaces = object instanceof THREE.ShadowVolume ? geometry.edgeFaces : undefined;
|
||||
|
||||
morphTargets = geometry.morphTargets;
|
||||
|
||||
@@ -2413,9 +2413,9 @@ THREE.WebGLRenderer = function ( parameters ) {
|
||||
|
||||
var dirLight = m_uniforms.directionalLightDirection.value;
|
||||
|
||||
dirLight[ 0 ] = -lights.position.x;
|
||||
dirLight[ 1 ] = -lights.position.y;
|
||||
dirLight[ 2 ] = -lights.position.z;
|
||||
dirLight[ 0 ] = -lights[ 1 ].position.x;
|
||||
dirLight[ 1 ] = -lights[ 1 ].position.y;
|
||||
dirLight[ 2 ] = -lights[ 1 ].position.z;
|
||||
|
||||
_gl.uniform3fv( p_uniforms.directionalLightDirection, dirLight );
|
||||
_gl.uniformMatrix4fv( p_uniforms.objectMatrix, false, object._objectMatrixArray );
|
||||
|
||||
@@ -852,6 +852,7 @@ THREE.ShaderLib = {
|
||||
"vec4 pos = objectMatrix * vec4( position, 1.0 );",
|
||||
"vec3 norm = mat3( objectMatrix[0].xyz, objectMatrix[1].xyz, objectMatrix[2].xyz ) * normal;",
|
||||
"vec4 extruded = vec4( directionalLightDirection * 5000.0 * step( 0.0, dot( directionalLightDirection, norm )), 0.0 );",
|
||||
|
||||
"gl_Position = projectionMatrix * viewMatrix * ( pos + extruded );",
|
||||
"}"
|
||||
|
||||
@@ -861,7 +862,7 @@ THREE.ShaderLib = {
|
||||
|
||||
"void main() {",
|
||||
|
||||
"gl_FragColor = vec4( 1, 1, 1, 1 );",
|
||||
"gl_FragColor = vec4( 1.0 );",
|
||||
|
||||
"}"
|
||||
|
||||
|
||||
Reference in New Issue
Block a user