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Unterteilungsalgorithmen
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Kai Westerkamp
Unterteilungsalgorithmen
Commits
197f85be
Commit
197f85be
authored
8 years ago
by
Philipp Adolf
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Rename nib_offset to edge_index
parent
d117e237
patchRender
…
sharpEdges
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1 changed file
with
19 additions
and
12 deletions
+19
-12
subdivision.cpp
QTProject/subdivision.cpp
+19
-12
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QTProject/subdivision.cpp
View file @
197f85be
...
...
@@ -146,7 +146,8 @@ Subdivision::Tables Subdivision::precomputeTables(Input input) {
// for each triangle the edges of the neighbor triangles are stored.
// First the edge shared with the triangles uv edge, then vw and wu.
QMap
<
Triangle
,
QVector
<
Triangle
::
Edge
>>
opposite_edges
;
unsigned
int
nib_offset
=
vb
.
length
();
//offset in new index buffer for edge vertices
unsigned
int
edge_index
=
vb
.
length
();
//offset in new index buffer for edge vertices
for
(
int
i
=
0
;
i
<
triangles
.
length
();
i
++
){
//schaue alle dreiecke an
Triangle
triangle
=
triangles
[
i
];
...
...
@@ -170,6 +171,14 @@ Subdivision::Tables Subdivision::precomputeTables(Input input) {
}
QVector
<
Triangle
::
Edge
>
opposite
=
opposite_edges
.
value
(
triangle
);
// indices of the three vertices added to the edges of this triangle
unsigned
int
uv
,
vw
,
wu
;
uv
=
edge_index
++
;
vw
=
edge_index
++
;
wu
=
edge_index
++
;
tables
.
edge_indices
.
push_back
(
triangle
.
u_idx
());
tables
.
edge_indices
.
push_back
(
triangle
.
v_idx
());
tables
.
edge_indices
.
push_back
(
triangle
.
w_idx
());
...
...
@@ -187,22 +196,20 @@ Subdivision::Tables Subdivision::precomputeTables(Input input) {
//add indices to new index buffer
tables
.
index_buffer
.
push_back
(
triangle
.
u_idx
());
tables
.
index_buffer
.
push_back
(
nib_offset
);
tables
.
index_buffer
.
push_back
(
nib_offset
+
2
);
tables
.
index_buffer
.
push_back
(
uv
);
tables
.
index_buffer
.
push_back
(
wu
);
tables
.
index_buffer
.
push_back
(
triangle
.
v_idx
());
tables
.
index_buffer
.
push_back
(
nib_offset
+
1
);
tables
.
index_buffer
.
push_back
(
nib_offset
);
tables
.
index_buffer
.
push_back
(
vw
);
tables
.
index_buffer
.
push_back
(
uv
);
tables
.
index_buffer
.
push_back
(
triangle
.
w_idx
());
tables
.
index_buffer
.
push_back
(
nib_offset
+
2
);
tables
.
index_buffer
.
push_back
(
nib_offset
+
1
);
tables
.
index_buffer
.
push_back
(
nib_offset
);
tables
.
index_buffer
.
push_back
(
nib_offset
+
1
);
tables
.
index_buffer
.
push_back
(
nib_offset
+
2
);
tables
.
index_buffer
.
push_back
(
wu
);
tables
.
index_buffer
.
push_back
(
vw
);
nib_offset
+=
3
;
tables
.
index_buffer
.
push_back
(
uv
);
tables
.
index_buffer
.
push_back
(
vw
);
tables
.
index_buffer
.
push_back
(
wu
);
}
qDebug
()
<<
"Done with edge table. "
<<
tables
.
edge_indices
.
length
();
...
...
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