static void start(long trans_time);
static void draw(void);
static void draw_lowres_raster(void);
+static void keypress(int key);
static int gen_texture(struct pimage *img, int xsz, int ysz);
static struct screen scr = {
init,
destroy,
start, 0,
- draw
+ draw,
+ keypress
};
static float cam_theta, cam_phi = 25;
static struct pimage tex;
+static int use_bsp = 0;
+
#define LOWRES_SCALE 10
static uint16_t *lowres_pixels;
static int lowres_width, lowres_height;
torus.varr[i].v *= 2.0;
}
+ /*
init_bsp(&torus_bsp);
if(bsp_add_mesh(&torus_bsp, &torus) == -1) {
fprintf(stderr, "failed to construct torus BSP tree\n");
return -1;
}
+ */
gen_texture(&tex, 128, 128);
free(cube.varr);
free(torus.varr);
free(torus.iarr);
+ /*
destroy_bsp(&torus_bsp);
+ */
}
static void start(long trans_time)
g3d_enable(G3D_LIGHT0);
g3d_polygon_mode(G3D_GOURAUD);
+ g3d_enable(G3D_TEXTURE_2D);
}
static void update(void)
static void draw(void)
{
float vdir[3];
- float mat[16];
+ const float *mat;
update();
g3d_rotate(cam_theta, 0, 1, 0);
}
- /* calc world-space view direction */
- g3d_get_matrix(G3D_MODELVIEW, mat);
- /* transform (0, 0, -1) with transpose(mat3x3) */
- vdir[0] = -mat[2];
- vdir[1] = -mat[6];
- vdir[2] = -mat[10];
-
-
g3d_light_pos(0, -10, 10, 20);
- zsort_mesh(&torus);
-
g3d_mtl_diffuse(0.4, 0.7, 1.0);
g3d_set_texture(tex.width, tex.height, tex.pixels);
- /*draw_mesh(&torus);*/
- draw_bsp(&torus_bsp, vdir[0], vdir[1], vdir[2]);
+ if(use_bsp) {
+ /* calc world-space view direction */
+ mat = g3d_get_matrix(G3D_MODELVIEW, 0);
+ /* transform (0, 0, -1) with transpose(mat3x3) */
+ vdir[0] = -mat[2];
+ vdir[1] = -mat[6];
+ vdir[2] = -mat[10];
+
+ draw_bsp(&torus_bsp, vdir[0], vdir[1], vdir[2]);
+ } else {
+ zsort_mesh(&torus);
+ draw_mesh(&torus);
+ }
/*draw_mesh(&cube);*/
swap_buffers(fb_pixels);
}
}
+static void keypress(int key)
+{
+ switch(key) {
+ case 'b':
+ use_bsp = !use_bsp;
+ printf("drawing with %s\n", use_bsp ? "BSP tree" : "z-sorting");
+ break;
+ }
+}
+
static int gen_texture(struct pimage *img, int xsz, int ysz)
{
int i, j;