1 | /* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*- */ |
---|
2 | |
---|
3 | #include <string.h> |
---|
4 | |
---|
5 | #include "global.h" |
---|
6 | #include "NvZincBlendeVolumeShader.h" |
---|
7 | |
---|
8 | NvZincBlendeVolumeShader::NvZincBlendeVolumeShader() |
---|
9 | { |
---|
10 | init(); |
---|
11 | } |
---|
12 | |
---|
13 | NvZincBlendeVolumeShader::~NvZincBlendeVolumeShader() |
---|
14 | { |
---|
15 | } |
---|
16 | |
---|
17 | void NvZincBlendeVolumeShader::init() |
---|
18 | { |
---|
19 | _cgFP = LoadCgSourceProgram(g_context, "zincblende_volume.cg", |
---|
20 | CG_PROFILE_FP30, "main"); |
---|
21 | _tfParam = cgGetNamedParameter(_cgFP, "tf"); |
---|
22 | _volumeAParam = cgGetNamedParameter(_cgFP, "volumeA"); |
---|
23 | _volumeBParam = cgGetNamedParameter(_cgFP, "volumeB"); |
---|
24 | _cellSizeParam = cgGetNamedParameter(_cgFP, "cellSize"); |
---|
25 | _mviParam = cgGetNamedParameter(_cgFP, "modelViewInv"); |
---|
26 | _renderParam = cgGetNamedParameter(_cgFP, "renderParameters"); |
---|
27 | _option_one_volume_param = cgGetNamedParameter(_cgFP, "options"); |
---|
28 | } |
---|
29 | |
---|
30 | void NvZincBlendeVolumeShader::bind(unsigned int tfID, Volume *volume, int sliceMode) |
---|
31 | { |
---|
32 | ZincBlendeVolume *vol = (ZincBlendeVolume *)volume; |
---|
33 | cgGLSetStateMatrixParameter(_mviParam, CG_GL_MODELVIEW_MATRIX, CG_GL_MATRIX_INVERSE); |
---|
34 | cgGLSetTextureParameter(_tfParam, tfID); |
---|
35 | cgGLSetParameter4f(_cellSizeParam, |
---|
36 | vol->cell_size.x, |
---|
37 | vol->cell_size.y, |
---|
38 | vol->cell_size.z, 0.); |
---|
39 | |
---|
40 | if (!sliceMode) { |
---|
41 | cgGLSetParameter4f(_renderParam, |
---|
42 | vol->n_slices(), |
---|
43 | vol->opacity_scale(), |
---|
44 | vol->diffuse(), |
---|
45 | vol->specular()); |
---|
46 | } else { |
---|
47 | cgGLSetParameter4f(_renderParam, |
---|
48 | 0., |
---|
49 | vol->opacity_scale(), |
---|
50 | vol->diffuse(), |
---|
51 | vol->specular()); |
---|
52 | } |
---|
53 | |
---|
54 | cgGLSetParameter4f(_option_one_volume_param, |
---|
55 | 0.0f, |
---|
56 | volume->isosurface(), |
---|
57 | 0.0f, |
---|
58 | 0.0f); |
---|
59 | |
---|
60 | cgGLSetTextureParameter(_volumeAParam, vol->zincblende_tex[0]->id()); |
---|
61 | cgGLSetTextureParameter(_volumeBParam, vol->zincblende_tex[1]->id()); |
---|
62 | cgGLEnableTextureParameter(_volumeAParam); |
---|
63 | cgGLEnableTextureParameter(_volumeBParam); |
---|
64 | |
---|
65 | cgGLBindProgram(_cgFP); |
---|
66 | cgGLEnableProfile(CG_PROFILE_FP30); |
---|
67 | } |
---|
68 | |
---|
69 | void NvZincBlendeVolumeShader::unbind() |
---|
70 | { |
---|
71 | cgGLDisableTextureParameter(_volumeAParam); |
---|
72 | cgGLDisableTextureParameter(_volumeBParam); |
---|
73 | cgGLDisableTextureParameter(_tfParam); |
---|
74 | |
---|
75 | cgGLDisableProfile(CG_PROFILE_FP30); |
---|
76 | } |
---|