rayzor

annotate src/modeller.cc @ 17:79609d482762

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the renderer renders, also fixed an unnoticed matrix conversion problem between scenegraph and min3d
author John Tsiombikas <nuclear@member.fsf.org>
date Mon, 14 Apr 2014 07:34:45 +0300
parents be616b58df99
children 5380ff64e83f
rev   line source
nuclear@12 1 #include <stdio.h>
nuclear@9 2 #include <string.h>
nuclear@9 3 #include <assert.h>
nuclear@9 4 #include "modeller.h"
nuclear@9 5 #include "min3d.h"
nuclear@9 6 #include "rayzor.h"
nuclear@9 7 #include "scene.h"
nuclear@12 8 #include "keyb.h"
nuclear@14 9 #include "scrman.h"
nuclear@14 10 #include "logger.h"
nuclear@9 11
nuclear@9 12 struct ModellerImpl {
nuclear@9 13 int mx, my;
nuclear@17 14 float cam_theta, cam_phi, cam_dist, cam_fov;
nuclear@15 15 Camera *viewport_cam;
nuclear@9 16
nuclear@9 17 struct m3d_image rbuf;
nuclear@9 18
nuclear@9 19 bool bnstate[8];
nuclear@9 20 int prev_x, prev_y;
nuclear@9 21 };
nuclear@9 22
nuclear@9 23 static void draw_grid(float size, float spacing);
nuclear@9 24
nuclear@9 25 Modeller::Modeller()
nuclear@9 26 {
nuclear@9 27 set_name("modeller");
nuclear@9 28 }
nuclear@9 29
nuclear@9 30 Modeller::~Modeller()
nuclear@9 31 {
nuclear@9 32 shutdown();
nuclear@9 33 }
nuclear@9 34
nuclear@9 35 bool Modeller::init()
nuclear@9 36 {
nuclear@9 37 mod = new ModellerImpl;
nuclear@9 38 memset(mod, 0, sizeof *mod);
nuclear@9 39
nuclear@15 40 mod->viewport_cam = new Camera;
nuclear@15 41
nuclear@9 42 mod->cam_phi = 25;
nuclear@9 43 mod->cam_dist = 5;
nuclear@17 44 mod->cam_fov = 50.0;
nuclear@9 45
nuclear@9 46 m3d_init();
nuclear@9 47 mod->rbuf.pixels = fb_pixels;
nuclear@9 48 mod->rbuf.xsz = fb_width;
nuclear@9 49 mod->rbuf.ysz = fb_height;
nuclear@9 50 m3d_set_buffers(&mod->rbuf, 0);
nuclear@9 51
nuclear@9 52 m3d_matrix_mode(M3D_PROJECTION);
nuclear@9 53 m3d_load_identity();
nuclear@17 54 m3d_perspective(mod->cam_fov, (float)fb_width / (float)fb_height, 0.5, 500.0);
nuclear@9 55
nuclear@9 56 m3d_enable(M3D_CULL_FACE);
nuclear@9 57 return true;
nuclear@9 58 }
nuclear@9 59
nuclear@9 60 void Modeller::shutdown()
nuclear@9 61 {
nuclear@9 62 if(mod) {
nuclear@9 63 m3d_shutdown();
nuclear@9 64
nuclear@9 65 delete mod;
nuclear@9 66 mod = 0;
nuclear@9 67 }
nuclear@9 68 }
nuclear@9 69
nuclear@9 70 void Modeller::draw() const
nuclear@9 71 {
nuclear@9 72 m3d_clear(M3D_COLOR_BUFFER_BIT);
nuclear@9 73
nuclear@9 74 m3d_matrix_mode(M3D_MODELVIEW);
nuclear@9 75 m3d_load_identity();
nuclear@9 76 m3d_translate(0, 0, -mod->cam_dist);
nuclear@9 77 m3d_rotate(mod->cam_phi, 1, 0, 0);
nuclear@9 78 m3d_rotate(mod->cam_theta, 0, 1, 0);
nuclear@9 79
nuclear@9 80 draw_grid(10.0, 1.0);
nuclear@9 81
nuclear@9 82 scene->draw();
nuclear@9 83 }
nuclear@9 84
nuclear@9 85
nuclear@9 86 static void draw_grid(float size, float spacing)
nuclear@9 87 {
nuclear@9 88 int num_lines = size / spacing;
nuclear@9 89 float dist = size / 2.0;
nuclear@9 90
nuclear@9 91 m3d_disable(M3D_LIGHTING);
nuclear@9 92
nuclear@9 93 m3d_begin(M3D_LINES);
nuclear@9 94 m3d_color(0.4, 0.4, 0.4);
nuclear@9 95
nuclear@9 96 float x = -dist;
nuclear@9 97 for(int i=0; i<=num_lines; i++) {
nuclear@9 98 if(i != num_lines / 2) {
nuclear@9 99 m3d_vertex(-dist, 0, x);
nuclear@9 100 m3d_vertex(dist, 0, x);
nuclear@9 101 m3d_vertex(x, 0, -dist);
nuclear@9 102 m3d_vertex(x, 0, dist);
nuclear@9 103 }
nuclear@9 104 x += spacing;
nuclear@9 105 }
nuclear@9 106 m3d_end();
nuclear@9 107
nuclear@9 108 m3d_begin(M3D_LINES);
nuclear@14 109 m3d_color(0.8, 0, 0);
nuclear@9 110 m3d_vertex(-dist, 0, 0);
nuclear@9 111 m3d_vertex(dist, 0, 0);
nuclear@14 112 m3d_color(0.1, 0.3, 0.8);
nuclear@9 113 m3d_vertex(0, 0, -dist);
nuclear@9 114 m3d_vertex(0, 0, dist);
nuclear@9 115 m3d_end();
nuclear@9 116 }
nuclear@9 117
nuclear@9 118
nuclear@9 119 void Modeller::handle_keyboard(int key, bool press)
nuclear@9 120 {
nuclear@9 121 if(press) {
nuclear@9 122 switch(key) {
nuclear@12 123 case 'q':
nuclear@12 124 quit_app();
nuclear@12 125 break;
nuclear@12 126
nuclear@9 127 case 27:
nuclear@12 128 scene->clear_selection();
nuclear@12 129 break;
nuclear@12 130
nuclear@12 131 case '\t':
nuclear@12 132 {
nuclear@12 133 int s = scene->get_selection();
nuclear@12 134 if(s >= 0) {
nuclear@12 135 s = (s + 1) % scene->get_node_count();
nuclear@12 136 scene->clear_selection();
nuclear@12 137 } else {
nuclear@12 138 s = 0;
nuclear@12 139 }
nuclear@12 140 scene->select(s);
nuclear@12 141 }
nuclear@9 142 break;
nuclear@9 143
nuclear@14 144 case 'r':
nuclear@15 145 case 'p':
nuclear@14 146 if(kb_isdown(KB_ALT) || kb_isdown(KB_CTRL)) {
nuclear@15 147 case KB_F5:
nuclear@15 148 case KB_F6:
nuclear@14 149 Screen *rs = get_screen("renderer");
nuclear@14 150 if(rs) {
nuclear@14 151 activate_screen(rs);
nuclear@15 152
nuclear@15 153 if(key == 'r' || key == KB_F5) {
nuclear@15 154 // start a rendering, and make sure there is a camera
nuclear@15 155 if(!scene->get_active_camera()) {
nuclear@15 156 scene->set_active_camera(mod->viewport_cam);
nuclear@15 157 }
nuclear@15 158 Vector3 dir;
nuclear@17 159 float theta = -DEG2RAD(mod->cam_theta);
nuclear@17 160 float phi = DEG2RAD(mod->cam_phi);
nuclear@17 161 dir.x = sin(theta) * cos(phi) * mod->cam_dist;
nuclear@17 162 dir.y = sin(phi) * mod->cam_dist;
nuclear@17 163 dir.z = cos(theta) * cos(phi) * mod->cam_dist;
nuclear@15 164 mod->viewport_cam->set_position(dir);
nuclear@15 165 mod->viewport_cam->set_target(Vector3(0, 0, 0));
nuclear@17 166 mod->viewport_cam->set_fov(DEG2RAD(mod->cam_fov));
nuclear@15 167
nuclear@15 168 rs->message(message_atom("start"));
nuclear@15 169 }
nuclear@14 170 } else {
nuclear@14 171 printlog("failed to find renderer screen!\n");
nuclear@14 172 }
nuclear@14 173 }
nuclear@14 174 break;
nuclear@14 175
nuclear@9 176 default:
nuclear@9 177 break;
nuclear@9 178 }
nuclear@9 179 }
nuclear@9 180 }
nuclear@9 181
nuclear@9 182 void Modeller::handle_mbutton(int bn, bool press, int x, int y)
nuclear@9 183 {
nuclear@9 184 mod->bnstate[bn] = press;
nuclear@9 185 mod->prev_x = x;
nuclear@9 186 mod->prev_y = y;
nuclear@9 187 }
nuclear@9 188
nuclear@9 189 void Modeller::handle_mmotion(int x, int y)
nuclear@9 190 {
nuclear@9 191 int dx = x - mod->prev_x;
nuclear@9 192 int dy = y - mod->prev_y;
nuclear@9 193 mod->prev_x = x;
nuclear@9 194 mod->prev_y = y;
nuclear@9 195
nuclear@12 196 if(kb_isdown(KB_ALT) || kb_isdown(KB_CTRL)) {
nuclear@12 197 if(mod->bnstate[0]) {
nuclear@12 198 mod->cam_theta += dx * 0.5;
nuclear@12 199 mod->cam_phi += dy * 0.5;
nuclear@9 200
nuclear@12 201 if(mod->cam_phi < -90) mod->cam_phi = -90;
nuclear@12 202 if(mod->cam_phi > 90) mod->cam_phi = 90;
nuclear@12 203 }
nuclear@12 204 if(mod->bnstate[1]) {
nuclear@12 205 mod->cam_dist += dy * 0.1;
nuclear@12 206 if(mod->cam_dist < 0) mod->cam_dist = 0;
nuclear@12 207 }
nuclear@9 208 }
nuclear@9 209 }