[2798] | 1 | /* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*- */ |
---|
[1333] | 2 | /* |
---|
| 3 | * ---------------------------------------------------------------------- |
---|
| 4 | * NvParticleRenderer.h: particle system class |
---|
| 5 | * |
---|
| 6 | * ====================================================================== |
---|
| 7 | * AUTHOR: Wei Qiao <qiaow@purdue.edu> |
---|
| 8 | * Purdue Rendering and Perceptualization Lab (PURPL) |
---|
| 9 | * |
---|
| 10 | * Copyright (c) 2004-2006 Purdue Research Foundation |
---|
| 11 | * |
---|
| 12 | * See the file "license.terms" for information on usage and |
---|
| 13 | * redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
---|
| 14 | * ====================================================================== |
---|
| 15 | */ |
---|
[2844] | 16 | #ifndef NVPARTICLERENDERER_H |
---|
| 17 | #define NVPARTICLERENDERER_H |
---|
[1333] | 18 | |
---|
[2837] | 19 | #include <vector> |
---|
[1333] | 20 | |
---|
[2837] | 21 | #include <GL/glew.h> |
---|
| 22 | #include <Cg/cgGL.h> |
---|
[1333] | 23 | |
---|
| 24 | #include "define.h" |
---|
| 25 | #include "config.h" |
---|
| 26 | #include "global.h" |
---|
| 27 | |
---|
| 28 | #include "Renderable.h" |
---|
| 29 | #include "RenderVertexArray.h" |
---|
| 30 | #include "Vector3.h" |
---|
| 31 | #include "NvParticleAdvectionShader.h" |
---|
| 32 | |
---|
| 33 | struct Particle { |
---|
[1497] | 34 | float x; |
---|
| 35 | float y; |
---|
| 36 | float z; |
---|
| 37 | float aux; |
---|
[1333] | 38 | |
---|
[2837] | 39 | Particle() |
---|
| 40 | {} |
---|
| 41 | |
---|
[1497] | 42 | Particle(float _x, float _y, float _z, float _life) : |
---|
[2837] | 43 | x(_x), y(_y), z(_z), aux(_life) |
---|
| 44 | {} |
---|
[1333] | 45 | }; |
---|
| 46 | |
---|
[2837] | 47 | class NvParticleRenderer : public Renderable |
---|
| 48 | { |
---|
| 49 | public: |
---|
| 50 | NvParticleRenderer(int w, int h, CGcontext context); |
---|
[1333] | 51 | |
---|
[2837] | 52 | ~NvParticleRenderer(); |
---|
[1333] | 53 | |
---|
[2837] | 54 | void setVectorField(unsigned int texID, const Vector3& ori, |
---|
| 55 | float scaleX, float scaleY, float scaleZ, float max); |
---|
[1333] | 56 | |
---|
[2837] | 57 | void initialize(); |
---|
[1333] | 58 | |
---|
[2837] | 59 | void advect(); |
---|
[1497] | 60 | |
---|
[2837] | 61 | void update_vertex_buffer(); |
---|
[1333] | 62 | |
---|
[2837] | 63 | void display_vertices(); |
---|
[1333] | 64 | |
---|
[2837] | 65 | void reset(); |
---|
[1333] | 66 | |
---|
| 67 | void render(); |
---|
| 68 | |
---|
[2837] | 69 | bool active() const |
---|
| 70 | { |
---|
[1431] | 71 | return _activate; |
---|
| 72 | } |
---|
[2837] | 73 | |
---|
| 74 | void active(bool state) |
---|
| 75 | { |
---|
[1431] | 76 | _activate = state; |
---|
| 77 | } |
---|
[2837] | 78 | |
---|
| 79 | void setColor(const Vector4& color) |
---|
| 80 | { |
---|
[1431] | 81 | _color = color; |
---|
| 82 | } |
---|
[2837] | 83 | |
---|
[1370] | 84 | void setAxis(int axis); |
---|
[2837] | 85 | |
---|
[1370] | 86 | void setPos(float pos); |
---|
[2837] | 87 | |
---|
[1431] | 88 | void draw_bounding_box(float x0, float y0, float z0, |
---|
| 89 | float x1, float y1, float z1, |
---|
| 90 | float r, float g, float b, float line_width); |
---|
[2837] | 91 | |
---|
[1370] | 92 | void initializeDataArray(); |
---|
[2837] | 93 | |
---|
| 94 | void particleSize(float size) |
---|
| 95 | { |
---|
[1497] | 96 | _particleSize = size; |
---|
| 97 | } |
---|
[2837] | 98 | |
---|
| 99 | float particleSize() const |
---|
| 100 | { |
---|
[1497] | 101 | return _particleSize; |
---|
| 102 | } |
---|
[2837] | 103 | |
---|
| 104 | static NvParticleAdvectionShader *_advectionShader; |
---|
| 105 | |
---|
| 106 | private: |
---|
| 107 | /// frame buffer objects: two are defined, flip them as input output every step |
---|
| 108 | GLuint psys_fbo[2]; |
---|
| 109 | |
---|
| 110 | /// color textures attached to frame buffer objects |
---|
| 111 | GLuint psys_tex[2]; |
---|
| 112 | GLuint initPosTex; |
---|
| 113 | Particle *data; |
---|
| 114 | |
---|
| 115 | /// Count the frame number of particle system iteration |
---|
| 116 | int psys_frame; |
---|
| 117 | |
---|
| 118 | /// Reinitiate particles |
---|
| 119 | bool reborn; |
---|
| 120 | |
---|
| 121 | /// flip the source and destination render targets |
---|
| 122 | bool flip; |
---|
| 123 | |
---|
| 124 | float max_life; |
---|
| 125 | |
---|
| 126 | /// Size of the particle: default is 1.2 |
---|
| 127 | float _particleSize; |
---|
| 128 | |
---|
| 129 | /// vertex array for display particles |
---|
| 130 | RenderVertexArray *_vertex_array; |
---|
| 131 | |
---|
| 132 | /// scale of flow data |
---|
| 133 | Vector3 scale; |
---|
| 134 | |
---|
| 135 | Vector3 origin; |
---|
| 136 | |
---|
| 137 | bool _activate; |
---|
| 138 | |
---|
| 139 | float _slice_pos; |
---|
| 140 | int _slice_axis; |
---|
| 141 | |
---|
| 142 | Vector4 _color; |
---|
| 143 | |
---|
| 144 | //the storage of particles is implemented as a 2D array. |
---|
| 145 | int psys_width; |
---|
| 146 | int psys_height; |
---|
[1333] | 147 | }; |
---|
| 148 | |
---|
| 149 | #endif |
---|