source: trunk/packages/vizservers/nanovis/PointShader.h @ 2892

Last change on this file since 2892 was 2882, checked in by ldelgass, 13 years ago

Assume baseline requirement of NV40 GPU, which translates to Cg profiles vp40
and fp40, which in turn require NV_vertex_program3 and NV_fragment_program2
assembly shader extensions. Add explicit check for these extensions.
  • Property svn:eol-style set to native
File size: 1.3 KB
Line 
1/* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
2#ifndef POINTSHADER_H
3#define POINTSHADER_H
4
5#include "NvShader.h"
6#include "Texture3D.h"
7
8class PointShader : public NvShader
9{
10public:
11    PointShader();
12
13    ~PointShader();
14
15    void setScale(float scale)
16    {
17        cgGLSetParameter4f(_scaleVP, scale, 1.0f, 1.0f, 1.0f);
18    }
19
20    void setNormalTexture(Texture3D *n)
21    {
22        _normal = n;
23    }
24
25    void bind()
26    {
27        setParameters();
28
29        if (_cgVP) {
30            cgGLBindProgram(_cgVP);
31            cgGLEnableProfile((CGprofile) CG_PROFILE_VP40);
32        }
33        if (_cgFP) {
34            cgGLBindProgram(_cgFP);
35            cgGLEnableProfile((CGprofile) CG_PROFILE_FP40);
36        }
37    }
38
39    void unbind()
40    {
41        if (_cgVP) {
42            cgGLDisableProfile((CGprofile)CG_PROFILE_VP40);
43        }
44        if (_cgFP) {
45            cgGLDisableProfile((CGprofile)CG_PROFILE_FP40);
46        }
47
48        resetParameters();
49    }
50
51protected:
52    virtual void setParameters();
53    virtual void resetParameters();
54
55private:
56    CGparameter _modelviewVP;
57    CGparameter _projectionVP;
58
59    CGparameter _attenVP;
60    CGparameter _posoffsetVP;
61    CGparameter _baseposVP;
62    CGparameter _scaleVP;
63    CGparameter _normalParam;
64
65    Texture3D *_normal;
66};
67
68#endif
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