#include "gmath/gmath.h"
#include "mesh.h"
#include "meshgen.h"
-#include "sdr.h"
+#include "backdrop.h"
+#include "goatvr.h"
+
+static bool parse_args(int argc, char **argv);
int win_width, win_height;
float win_aspect;
long time_msec;
+Mat4 view_matrix;
+
+static bool use_vr;
+static bool should_swap;
static float cam_theta, cam_phi;
+static float cam_height = 1.65;
static Mesh *mesh_torus;
static bool bnstate[16];
static int prev_x, prev_y;
-static unsigned int sdr_grid;
-
bool app_init(int argc, char **argv)
{
+ if(!parse_args(argc, argv)) {
+ return false;
+ }
if(init_opengl() == -1) {
return false;
}
glGetIntegerv(GL_SAMPLES, &aasamples);
printf("got %d samples per pixel\n", aasamples);
+ printf("Max anisotropy: %d\n", glcaps.max_aniso);
+
glEnable(GL_CULL_FACE);
glEnable(GL_DEPTH_TEST);
//glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
+ if(GLEW_ARB_framebuffer_sRGB) {
+ glEnable(GL_FRAMEBUFFER_SRGB);
+ }
+
+ if(use_vr) {
+ if(goatvr_init() == -1) {
+ return false;
+ }
+ goatvr_set_origin_mode(GOATVR_HEAD);
+
+ goatvr_startvr();
+ should_swap = goatvr_should_swap() != 0;
+ cam_height = goatvr_get_eye_height();
+ }
+
Mesh::use_custom_sdr_attr = false;
mesh_torus = new Mesh;
gen_torus(mesh_torus, 1.0, 0.25, 32, 32);
- if(!(sdr_grid = create_program_load("sdr/grid.v.glsl", "sdr/grid.p.glsl"))) {
+ if(!init_backdrop()) {
return false;
}
void app_cleanup()
{
+ if(use_vr) {
+ goatvr_shutdown();
+ }
+ delete mesh_torus;
+ cleanup_backdrop();
}
void app_draw()
{
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
- Mat4 view_mat;
- view_mat.pre_rotate_x(deg_to_rad(cam_phi));
- view_mat.pre_rotate_y(deg_to_rad(cam_theta));
- view_mat.pre_translate(0, -1.65, 0);
- glMatrixMode(GL_MODELVIEW);
- glLoadMatrixf(view_mat[0]);
-
- //mesh_torus->draw();
-
- Mat4 xform;
- xform.scaling(500.0);
- glPushMatrix();
- glMultMatrixf(xform[0]);
-
- bind_program(sdr_grid);
- glBegin(GL_QUADS);
- glNormal3f(0, 1, 0);
- glVertex3f(-1, 0, 1);
- glVertex3f(1, 0, 1);
- glVertex3f(1, 0, -1);
- glVertex3f(-1, 0, -1);
- glEnd();
- bind_program(0);
-
- glPopMatrix();
-
- app_swap_buffers();
+ if(use_vr) {
+ // VR mode
+ goatvr_draw_start();
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ for(int i=0; i<2; i++) {
+ goatvr_draw_eye(i);
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadMatrixf(goatvr_projection_matrix(i, 0.5, 1000.0));
+
+ view_matrix = goatvr_view_matrix(i);
+ view_matrix.pre_rotate_x(deg_to_rad(cam_phi));
+ view_matrix.pre_rotate_y(deg_to_rad(cam_theta));
+ view_matrix.pre_translate(0, -cam_height, 0);
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadMatrixf(view_matrix[0]);
+
+ draw_backdrop();
+ }
+ goatvr_draw_done();
+
+ if(should_swap) {
+ app_swap_buffers();
+ }
+ app_redraw(); // in VR mode, force continuous redraw
+
+ } else {
+ // regular monoscopic mode
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ view_matrix = Mat4::identity;
+ view_matrix.pre_rotate_x(deg_to_rad(cam_phi));
+ view_matrix.pre_rotate_y(deg_to_rad(cam_theta));
+ view_matrix.pre_translate(0, -cam_height, 0);
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadMatrixf(view_matrix[0]);
+
+ draw_backdrop();
+
+ app_swap_buffers();
+ }
assert(glGetError() == GL_NO_ERROR);
}
case 27:
app_quit();
break;
+
+ case ' ':
+ if(use_vr) {
+ goatvr_recenter();
+ }
+ break;
}
}
}
if(bnstate[0]) {
cam_theta += dx * 0.5;
- cam_phi += dy * 0.5;
- if(cam_phi < -90) cam_phi = -90;
- if(cam_phi > 90) cam_phi = 90;
+ if(!use_vr || !goatvr_have_headtracking()) {
+ cam_phi += dy * 0.5;
+
+ if(cam_phi < -90) cam_phi = -90;
+ if(cam_phi > 90) cam_phi = 90;
+ }
}
app_redraw();
}
+
+static bool parse_args(int argc, char **argv)
+{
+ for(int i=1; i<argc; i++) {
+ if(argv[i][0] == '-') {
+ if(strcmp(argv[i], "-vr") == 0) {
+ use_vr = true;
+
+ } else if(strcmp(argv[i], "-novr") == 0) {
+ use_vr = false;
+
+ } else if(strcmp(argv[i], "-help") == 0) {
+ printf("usage: %s [options]\noptions:\n", argv[0]);
+ printf(" -vr/-novr: enable/disable VR\n");
+ printf(" -help: print usage information and exit\n");
+ exit(0);
+ } else {
+ fprintf(stderr, "invalid option: %s\n", argv[i]);
+ return false;
+ }
+ } else {
+ fprintf(stderr, "unexpected option: %s\n", argv[i]);
+ return false;
+ }
+ }
+ return true;
+}