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/*
* Copyright 2009, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef O3D_COLLADA_EDGE_CONDITIONER_H_
#define O3D_COLLADA_EDGE_CONDITIONER_H_
#include <vector>
#include "utility.h"
struct Options {
// default constructor.
Options()
: enable_soften_edge(false),
soften_edge_threshold(0),
sharp_edge_color(1, 0, 0) {}
// Add edges with dihedral angle larger than soften_edge_threshold.
bool enable_soften_edge;
// The threshold of normal angle of edges, if angle of certain
// edge is larger than this threshold, it will be added into
// the output file.
float soften_edge_threshold;
// Color of extra edges.
Vector3 sharp_edge_color;
};
// This takes ownership of its children NodeInstances.
class NodeInstance {
public:
typedef std::vector<NodeInstance *> NodeInstanceList;
explicit NodeInstance(FCDSceneNode *node) : node_(node) {}
~NodeInstance() {
for (unsigned int i = 0; i < children_.size(); ++i) {
delete children_[i];
}
}
// Gets the Collada node associated with this node instance.
FCDSceneNode *node() const { return node_; }
// Gets the list of this node instance's children.
NodeInstanceList &children() { return children_; }
// Finds the NodeInstance representing a scene node in the direct
// children of this NodeInstance.
NodeInstance *FindNodeShallow(FCDSceneNode *node) {
for (unsigned int i = 0; i < children_.size(); ++i) {
NodeInstance *child = children_[i];
if (child->node() == node) return child;
}
return NULL;
}
// Finds the NodeInstance representing a scene node in the sub-tree
// starting at this NodeInstance.
NodeInstance *FindNodeInTree(FCDSceneNode *node);
private:
FCDSceneNode *node_;
std::vector<NodeInstance *> children_;
};
// Edge class is used in detect sharp edge process. It stores two points
// in a specific order, and it serves as key class in edge-triangle map.
struct Edge {
Edge(Point3 p1, Point3 p2, uint32 i1, uint32 i2);
std::vector<Point3> pts;
std::vector<uint32> indices;
};
// Triangle class is used in detect sharp edge process.
struct Triangle {
Triangle(Point3 p1, Point3 p2, Point3 p3,
uint32 i1, uint32 i2, uint32 i3) {
pts.push_back(p1);
pts.push_back(p2);
pts.push_back(p3);
indices.push_back(i1);
indices.push_back(i2);
indices.push_back(i3);
}
std::vector<Point3> pts;
std::vector<uint32> indices;
};
// Conditions the given file to emphasize the sharp edges.
// Returns false on failure, and writes the relevant erros to stderr.
bool Condition(const wchar_t* in_filename, const wchar_t* out_filename,
const Options& options);
#endif
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