#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
#include <math.h>
#include "demo.h"
#include "3dgfx.h"
#include "screen.h"
#include "cfgopt.h"
+#include "polyfill.h"
+#include "imago2.h"
+#include "gfxutil.h"
+#include "mesh.h"
static int init(void);
static void destroy(void);
static void start(long trans_time);
static void draw(void);
-static void draw_cube(void);
+static int gen_phong_tex(struct pimage *img, int xsz, int ysz, float sexp,
+ float offx, float offy, int dr, int dg, int db, int sr, int sg, int sb);
static struct screen scr = {
"infcubes",
draw
};
-static float cam_theta, cam_phi;
-static float cam_dist = 5;
+static float cam_theta = -29, cam_phi = 35;
+static float cam_dist = 6;
+static struct pimage tex_inner, tex_outer;
+static struct g3d_mesh mesh_cube, mesh_cube2;
struct screen *infcubes_screen(void)
{
return &scr;
}
+#define PHONG_TEX_SZ 128
static int init(void)
{
+ static const float scalemat[16] = {-6, 0, 0, 0, 0, -6, 0, 0, 0, 0, -6, 0, 0, 0, 0, 1};
+ /*
+ if(!(tex_inner.pixels = img_load_pixels("data/crate.jpg", &tex_inner.width,
+ &tex_inner.height, IMG_FMT_RGB24))) {
+ fprintf(stderr, "infcubes: failed to load crate texture\n");
+ return -1;
+ }
+ convimg_rgb24_rgb16(tex_inner.pixels, (unsigned char*)tex_inner.pixels, tex_inner.width, tex_inner.height);
+ */
+ gen_phong_tex(&tex_inner, PHONG_TEX_SZ, PHONG_TEX_SZ, 5.0f, 0, 0, 10, 50, 92, 192, 192, 192);
+
+ if(!(tex_outer.pixels = img_load_pixels("data/refmap1.jpg", &tex_outer.width,
+ &tex_outer.height, IMG_FMT_RGB24))) {
+ fprintf(stderr, "infcubes: failed to load outer texture\n");
+ return -1;
+ }
+ convimg_rgb24_rgb16(tex_outer.pixels, (unsigned char*)tex_outer.pixels, tex_outer.width, tex_outer.height);
+ /*gen_phong_tex(&tex_outer, PHONG_TEX_SZ, PHONG_TEX_SZ, 5.0f, 50, 50, 50, 255, 255, 255);*/
+
+ /*
+ if(gen_cube_mesh(&mesh_cube, 1.0f, 3) == -1) {
+ return -1;
+ }
+ */
+ if(load_mesh(&mesh_cube, "data/bevelbox.obj") == -1) {
+ return -1;
+ }
+ if(load_mesh(&mesh_cube2, "data/bevelbox.obj") == -1) {
+ return -1;
+ }
+ apply_mesh_xform(&mesh_cube2, scalemat);
+ normalize_mesh_normals(&mesh_cube2);
return 0;
}
static void destroy(void)
{
+ img_free_pixels(tex_inner.pixels);
}
static void start(long trans_time)
{
g3d_matrix_mode(G3D_PROJECTION);
g3d_load_identity();
- g3d_perspective(50.0, 1.3333333, 0.5, 100.0);
+ g3d_perspective(70.0, 1.3333333, 0.5, 100.0);
- g3d_enable(G3D_LIGHTING);
+ g3d_enable(G3D_CULL_FACE);
+ g3d_disable(G3D_LIGHTING);
g3d_enable(G3D_LIGHT0);
}
static void draw(void)
{
+ float t = (float)time_msec / 16.0f;
update();
g3d_matrix_mode(G3D_MODELVIEW);
memset(fb_pixels, 0, fb_width * fb_height * 2);
- draw_cube();
+ g3d_polygon_mode(G3D_FLAT);
+ g3d_enable(G3D_TEXTURE_2D);
+ g3d_enable(G3D_TEXTURE_GEN);
+
+ g3d_push_matrix();
+ g3d_rotate(t, 1, 0, 0);
+ g3d_rotate(t, 0, 1, 0);
+ g3d_set_texture(tex_outer.width, tex_outer.height, tex_outer.pixels);
+ draw_mesh(&mesh_cube2);
+ g3d_pop_matrix();
+
+ g3d_set_texture(tex_inner.width, tex_inner.height, tex_inner.pixels);
+ draw_mesh(&mesh_cube);
+ g3d_disable(G3D_TEXTURE_GEN);
swap_buffers(fb_pixels);
}
-static void draw_cube(void)
+static int gen_phong_tex(struct pimage *img, int xsz, int ysz, float sexp,
+ float offx, float offy, int dr, int dg, int db, int sr, int sg, int sb)
{
- g3d_begin(G3D_QUADS);
- g3d_normal(0, 0, 1);
- g3d_vertex(-1, -1, 1);
- g3d_vertex(1, -1, 1);
- g3d_vertex(1, 1, 1);
- g3d_vertex(-1, 1, 1);
- g3d_normal(1, 0, 0);
- g3d_vertex(1, -1, 1);
- g3d_vertex(1, -1, -1);
- g3d_vertex(1, 1, -1);
- g3d_vertex(1, 1, 1);
- g3d_normal(0, 0, -1);
- g3d_vertex(1, -1, -1);
- g3d_vertex(-1, -1, -1);
- g3d_vertex(-1, 1, -1);
- g3d_vertex(1, 1, -1);
- g3d_normal(-1, 0, 0);
- g3d_vertex(-1, -1, -1);
- g3d_vertex(-1, -1, 1);
- g3d_vertex(-1, 1, 1);
- g3d_vertex(-1, 1, -1);
- g3d_normal(0, 1, 0);
- g3d_vertex(-1, 1, 1);
- g3d_vertex(1, 1, 1);
- g3d_vertex(1, 1, -1);
- g3d_vertex(-1, 1, -1);
- g3d_normal(0, -1, 0);
- g3d_vertex(1, -1, 1);
- g3d_vertex(-1, -1, 1);
- g3d_vertex(-1, -1, -1);
- g3d_vertex(1, -1, -1);
- g3d_end();
+ int i, j;
+ float u, v, du, dv;
+ uint16_t *pix;
+
+ if(!(img->pixels = malloc(xsz * ysz * sizeof *pix))) {
+ return -1;
+ }
+ pix = img->pixels;
+
+ du = 2.0f / (float)(xsz - 1);
+ dv = 2.0f / (float)(ysz - 1);
+
+ v = -1.0f - offy;
+ for(i=0; i<ysz; i++) {
+ u = -1.0f - offx;
+ for(j=0; j<xsz; j++) {
+ float d = sqrt(u * u + v * v);
+ float val = pow(cos(d * M_PI / 2.0f), sexp);
+ int ival = abs(val * 255.0f);
+
+ int r = dr + ival * sr / 256;
+ int g = dg + ival * sg / 256;
+ int b = db + ival * sb / 256;
+
+ if(r > 255) r = 255;
+ if(g > 255) g = 255;
+ if(b > 255) b = 255;
+
+ *pix++ = PACK_RGB16(r, g, b);
+
+ u += du;
+ }
+ v += dv;
+ }
+
+ img->width = xsz;
+ img->height = ysz;
+ return 0;
}
projects / dosdemo / blobdiff