pointSprite.h 3.45 KB
Newer Older
1
2
3
/*******************************************************************************
 * CGoGN: Combinatorial and Geometric modeling with Generic N-dimensional Maps  *
 * version 0.1                                                                  *
4
 * Copyright (C) 2009-2012, IGG Team, LSIIT, University of Strasbourg           *
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
 *                                                                              *
 * This library is free software; you can redistribute it and/or modify it      *
 * under the terms of the GNU Lesser General Public License as published by the *
 * Free Software Foundation; either version 2.1 of the License, or (at your     *
 * option) any later version.                                                   *
 *                                                                              *
 * This library 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 Lesser General Public License  *
 * for more details.                                                            *
 *                                                                              *
 * You should have received a copy of the GNU Lesser General Public License     *
 * along with this library; if not, write to the Free Software Foundation,      *
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.           *
 *                                                                              *
20
 * Web site: http://cgogn.unistra.fr/                                           *
21
22
23
24
25
26
27
28
29
30
31
32
33
34
 * Contact information: cgogn@unistra.fr                                        *
 *                                                                              *
 *******************************************************************************/

#ifndef __POINT_SPRITE_3D__
#define __POINT_SPRITE_3D__

#include "Utils/GLSLShader.h"
#include "Geometry/vector_gen.h"

namespace CGoGN { namespace Utils { class VBO; } }

namespace CGoGN
{
35

36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
namespace Utils
{

class PointSprite: public Utils::GLSLShader
{
protected:
	static const unsigned int WIDTHSPRITE = 64;

	static std::string vertexShaderText;

	static std::string geometryShaderText;

	static std::string fragmentShaderText;

	static unsigned char* m_ptrSphere;

52
53
	static PointSprite* m_instance0;

54
55
56
	// compute the sphere instead of storing it in image file.
	static void computeSphere();

57
58
59
60
61
	CGoGNGLuint m_uniform_size;

	CGoGNGLuint m_uniform_color;

	CGoGNGLuint m_idTexture;
62

63
	CGoGNGLuint m_uniform_texture;
Pierre Kraemer's avatar
Pierre Kraemer committed
64

65
66
67
public:
	/**
	 * init shaders, texture and variables
Thery Sylvain's avatar
Thery Sylvain committed
68
69
	 * @param withColorPerVertex if true use setAttributeColor for per vertex color, else use predraw(color) for global color
	 * @param radius of sphere
70
	 */
71

72
	PointSprite(bool withColorPerVertex=false, float radius=1.0f);
73
74
75
76
77
78
79
80

	/**
	 * clean shaders, texture and variables
	 */
	~PointSprite();

	/**
	 * call once before sending points to gpu
Thery Sylvain's avatar
Thery Sylvain committed
81
	 * @param color set global color of sprites
82
83
84
	 */
	void predraw(const Geom::Vec3f& color);

85
86
87
88
89
	/**
	 * call once before sending points to gpu
	 */
	void predraw();

90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
	/**
	 * call once after sending points to gpu
	 */
	void postdraw();

	/**
	 * set the radius of sphere
	 * @param radius
	 */
	void setSize(float radius);

	/**
	 * set position attribute
	 */
	unsigned int setAttributePosition(VBO* vbo);

106
	/**
Thery Sylvain's avatar
Thery Sylvain committed
107
	 * set color attribute
108
109
	 */
	unsigned int setAttributeColor(VBO* vbo);
110
};
111

112
113
114
} // namespace Utils

} // namespace CGoGN
115
#endif