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
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
|
#include "render-opencsg.h"
#include "polyset.h"
#include "csgterm.h"
#ifdef ENABLE_OPENCSG
# include <opencsg.h>
#endif
class OpenCSGPrim : public OpenCSG::Primitive
{
public:
OpenCSGPrim(OpenCSG::Operation operation, unsigned int convexity) :
OpenCSG::Primitive(operation, convexity) { }
PolySet *p;
double *m;
int csgmode;
virtual void render() {
glPushMatrix();
glMultMatrixd(m);
p->render_surface(PolySet::COLORMODE_NONE, PolySet::csgmode_e(csgmode), m);
glPopMatrix();
}
};
void renderCSGChainviaOpenCSG(CSGChain *chain, GLint *shaderinfo, bool highlight, bool background)
{
std::vector<OpenCSG::Primitive*> primitives;
int j = 0;
for (int i = 0;; i++)
{
bool last = i == chain->polysets.size();
if (last || chain->types[i] == CSGTerm::TYPE_UNION)
{
if (j+1 != i) {
OpenCSG::render(primitives);
glDepthFunc(GL_EQUAL);
}
if (shaderinfo)
glUseProgram(shaderinfo[0]);
for (; j < i; j++) {
double *m = chain->matrices[j];
glPushMatrix();
glMultMatrixd(m);
int csgmode = chain->types[j] == CSGTerm::TYPE_DIFFERENCE ? PolySet::CSGMODE_DIFFERENCE : PolySet::CSGMODE_NORMAL;
if (highlight) {
chain->polysets[j]->render_surface(PolySet::COLORMODE_HIGHLIGHT, PolySet::csgmode_e(csgmode + 20), m, shaderinfo);
} else if (background) {
chain->polysets[j]->render_surface(PolySet::COLORMODE_BACKGROUND, PolySet::csgmode_e(csgmode + 10), m, shaderinfo);
} else if (m[16] >= 0 || m[17] >= 0 || m[18] >= 0 || m[19] >= 0) {
// User-defined color from source
glColor4d(m[16], m[17], m[18], m[19]);
if (shaderinfo) {
glUniform4f(shaderinfo[1], m[16], m[17], m[18], m[19]);
glUniform4f(shaderinfo[2], (m[16]+1)/2, (m[17]+1)/2, (m[18]+1)/2, 1.0);
}
chain->polysets[j]->render_surface(PolySet::COLORMODE_NONE, PolySet::csgmode_e(csgmode), m, shaderinfo);
} else if (chain->types[j] == CSGTerm::TYPE_DIFFERENCE) {
chain->polysets[j]->render_surface(PolySet::COLORMODE_CUTOUT, PolySet::csgmode_e(csgmode), m, shaderinfo);
} else {
chain->polysets[j]->render_surface(PolySet::COLORMODE_MATERIAL, PolySet::csgmode_e(csgmode), m, shaderinfo);
}
glPopMatrix();
}
if (shaderinfo)
glUseProgram(0);
for (unsigned int k = 0; k < primitives.size(); k++) {
delete primitives[k];
}
glDepthFunc(GL_LEQUAL);
primitives.clear();
}
if (last)
break;
OpenCSGPrim *prim = new OpenCSGPrim(chain->types[i] == CSGTerm::TYPE_DIFFERENCE ?
OpenCSG::Subtraction : OpenCSG::Intersection, chain->polysets[i]->convexity);
prim->p = chain->polysets[i];
prim->m = chain->matrices[i];
prim->csgmode = chain->types[i] == CSGTerm::TYPE_DIFFERENCE ? PolySet::CSGMODE_DIFFERENCE : PolySet::CSGMODE_NORMAL;
if (highlight)
prim->csgmode += 20;
else if (background)
prim->csgmode += 10;
primitives.push_back(prim);
}
}
|
