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Cycles: Make an utility class for edge map 

Simplifies some logic.
This commit is contained in:
Sergey Sharybin 2017-02-10 13:31:59 +01:00
parent fd7e9f7974
commit 0178915ce9
1 changed files with 35 additions and 13 deletions
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48
intern/cycles/blender/blender_mesh.cpp
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@ -524,6 +524,36 @@ static void attr_create_uv_map(Scene *scene,
}
}
/* TODO(sergey): Move this to some better place? */
class EdgeMap {
public:
EdgeMap() {
}
void clear() {
edges_.clear();
}
void insert(int v0, int v1) {
get_sorted_verts(v0, v1);
edges_.insert(std::pair<int, int>(v0, v1));
}
bool exists(int v0, int v1) {
get_sorted_verts(v0, v1);
return edges_.find(std::pair<int, int>(v0, v1)) != edges_.end();
}
protected:
void get_sorted_verts(int& v0, int& v1) {
if(v0 > v1) {
swap(v0, v1);
}
}
set< std::pair<int, int> > edges_;
};
/* Create vertex pointiness attributes. */
static void attr_create_pointiness(Scene *scene,
Mesh *mesh,
@ -593,20 +623,16 @@ static void attr_create_pointiness(Scene *scene,
vector<float> raw_data(num_verts, 0.0f);
vector<float3> edge_accum(num_verts, make_float3(0.0f, 0.0f, 0.0f));
BL::Mesh::edges_iterator e;
set< std::pair<int, int> > visited_edges;
EdgeMap visited_edges;
int edge_index = 0;
memset(&counter[0], 0, sizeof(int) * counter.size());
for(b_mesh.edges.begin(e); e != b_mesh.edges.end(); ++e, ++edge_index) {
const int v0 = vert_orig_index[b_mesh.edges[edge_index].vertices()[0]],
v1 = vert_orig_index[b_mesh.edges[edge_index].vertices()[1]];
int sorted_v0 = v0, sorted_v1 = v1;
if(sorted_v0 > sorted_v1) {
swap(sorted_v0, sorted_v1);
}
if(visited_edges.find(std::pair<int, int>(sorted_v0, sorted_v1)) != visited_edges.end()) {
if(visited_edges.exists(v0, v1)) {
continue;
}
visited_edges.insert(std::pair<int, int>(sorted_v0, sorted_v1));
visited_edges.insert(v0, v1);
float3 co0 = get_float3(b_mesh.vertices[v0].co()),
co1 = get_float3(b_mesh.vertices[v1].co());
float3 edge = normalize(co1 - co0);
@ -641,14 +667,10 @@ static void attr_create_pointiness(Scene *scene,
for(b_mesh.edges.begin(e); e != b_mesh.edges.end(); ++e, ++edge_index) {
const int v0 = vert_orig_index[b_mesh.edges[edge_index].vertices()[0]],
v1 = vert_orig_index[b_mesh.edges[edge_index].vertices()[1]];
int sorted_v0 = v0, sorted_v1 = v1;
if(sorted_v0 > sorted_v1) {
swap(sorted_v0, sorted_v1);
}
if(visited_edges.find(std::pair<int, int>(sorted_v0, sorted_v1)) != visited_edges.end()) {
if(visited_edges.exists(v0, v1)) {
continue;
}
visited_edges.insert(std::pair<int, int>(sorted_v0, sorted_v1));
visited_edges.insert(v0, v1);
data[v0] += raw_data[v1];
data[v1] += raw_data[v0];
++counter[v0];