1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
/*
* Copyright 2011, Blender Foundation.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef __SUBD_SPLIT_H__
#define __SUBD_SPLIT_H__
/* DiagSplit: Parallel, Crack-free, Adaptive Tessellation for Micropolygon Rendering
* Splits up patches and determines edge tesselation factors for dicing. Patch
* evaluation at arbitrary points is required for this to work. See the paper
* for more details. */
#include "subd_dice.h"
#include "util_types.h"
#include "util_vector.h"
CCL_NAMESPACE_BEGIN
class Mesh;
class Patch;
#define DSPLIT_NON_UNIFORM -1
class DiagSplit {
public:
vector<QuadDice::SubPatch> subpatches_quad;
vector<QuadDice::EdgeFactors> edgefactors_quad;
vector<TriangleDice::SubPatch> subpatches_triangle;
vector<TriangleDice::EdgeFactors> edgefactors_triangle;
int test_steps;
int split_threshold;
float dicing_rate;
Camera *camera;
DiagSplit();
float3 project(Patch *patch, float2 uv);
int T(Patch *patch, float2 Pstart, float2 Pend);
void partition_edge(Patch *patch, float2 *P, int *t0, int *t1,
float2 Pstart, float2 Pend, int t);
void dispatch(QuadDice::SubPatch& sub, QuadDice::EdgeFactors& ef);
void split(QuadDice::SubPatch& sub, QuadDice::EdgeFactors& ef, int depth=0);
void dispatch(TriangleDice::SubPatch& sub, TriangleDice::EdgeFactors& ef);
void split(TriangleDice::SubPatch& sub, TriangleDice::EdgeFactors& ef, int depth=0);
void split_triangle(Mesh *mesh, Patch *patch, int shader, bool smooth);
void split_quad(Mesh *mesh, Patch *patch, int shader, bool smooth);
};
CCL_NAMESPACE_END
#endif /* __SUBD_SPLIT_H__ */
|
