simple-GL/sglmetaobj.cpp at master · DerOrfa/simple-GL · GitHub

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
/***************************************************************************
 *   Copyright (C) 2003 by Enrico Reimer                                   *
 *   enni@Willow.Reimer                                                    *
 *                                                                         *
 *   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.                                   *
 ***************************************************************************/
#include "sglmetaobj.h"

SGLMetaObj::SGLMetaObj(GLdouble PosX,GLdouble PosY,GLdouble PosZ,GLdouble SizeFact)
:SGLObj(PosX,PosY,PosZ,SizeFact),twoSideRender(false)
{}

SGLMetaObj::~SGLMetaObj()
{
	Objs.clear();
	TrObjs.clear();
}

/*!
    \fn SGLMetaObj::generate()
 */
void SGLMetaObj::generate()
{
	bool restoreCullFaces=false;
	if(	glIsEnabled(GL_CULL_FACE) && twoSideRender ){
		glDisable(GL_CULL_FACE);
		restoreCullFaces=true;
	}

	int i;
	for(i=Objs.size();i;i--)
		glCallList(Objs[i-1]);
	if(restoreCullFaces)
		glEnable(GL_CULL_FACE);

	if(TrObjs.size())
	{
		//Verhindern, daß das Enable wegoptimiert wird
		//gibt Probleme wenn die Liste bei geändertem Zustand der Maschine aufgerufen wird
		glDisable(GL_BLEND);
		glEnable(GL_BLEND);
		for(i=TrObjs.size();i;i--)
			glCallList(TrObjs[i-1]);
		glDisable(GL_BLEND);
	}
}

SGLFlMetaObj::SGLFlMetaObj(MaterialPtr mat, GLdouble PosX, GLdouble PosY, GLdouble PosZ, GLdouble SizeFact)
: SGLFlObj(mat,PosX,PosY,PosZ,SizeFact),twoSideRender(false)
{}

SGLFlMetaObj::~SGLFlMetaObj(){Objs.clear();}

void SGLFlMetaObj::generate()
{
	bool restoreCullFaces=false;
	if(	glIsEnabled(GL_CULL_FACE) && twoSideRender ){
		glDisable(GL_CULL_FACE);
		restoreCullFaces=true;
	}

	int i;
	for(i=Objs.size();i;i--)
		glCallList(Objs[i-1]);
	if(restoreCullFaces)
		glEnable(GL_CULL_FACE);
}