2 RetroRay - integrated standalone vintage modeller/renderer
3 Copyright (C) 2023 John Tsiombikas <nuclear@mutantstargoat.com>
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, either version 3 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <https://www.gnu.org/licenses/>.
21 #include "cgmath/cgmath.h"
26 extern struct img_pixmap renderbuf;
27 extern int max_ray_depth;
32 void rend_size(int xsz, int ysz);
33 void rend_begin(int x, int y, int w, int h);
34 int render(uint32_t *fb);
36 int ray_trace(const cgm_ray *ray, int maxiter, cgm_vec3 *res);
38 cgm_vec3 bgcolor(const cgm_ray *ray);
39 cgm_vec3 shade(const cgm_ray *ray, const struct rayhit *hit, int maxiter);