faire le makefile

2025-02-17 19:58:47 +01:00
parent 9b2f53bfa4
commit 557de2b0a7
7 changed files with 410 additions and 6 deletions
@@ -0,0 +1,54 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   render.c                                           :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: yantoine <yantoine@student.42.fr>          +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2025/02/17 19:24:30 by yantoine          #+#    #+#             */
+/*   Updated: 2025/02/17 19:52:46 by yantoine         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "miniRT.h"
+
+static void	render_pixel(t_app *app, int x, int y)
+{
+	t_calc	calc;
+
+	calc.ndc_x = (x + 0.5f) / app->win_width;
+	calc.ndc_y = (y + 0.5f) / app->win_height;
+	calc.aspect = (float)app->win_width / app->win_height;
+	calc.scale = tanf((app->fov * 0.5f) * (M_PI / 180.0f));
+	calc.screen_x = (2 * calc.ndc_x - 1) * calc.aspect * calc.scale;
+	calc.screen_y = (1 - 2 * calc.ndc_y) * calc.scale;
+	calc.ray_dir = vec3_add(app->cam_dir,
+			vec3_add(vec3_scale(app->right, calc.screen_x),
+			vec3_scale(app->cam_up, calc.screen_y)));
+	calc.ray_dir = vec3_normalize(calc.ray_dir);
+	calc.ray.origin = app->cam_pos;
+	calc.ray.dir = calc.ray_dir;
+	calc.color = trace(calc.ray);
+	calc.r = (unsigned char)(fminf(calc.color.x, 1.0f) * 255);
+	calc.g = (unsigned char)(fminf(calc.color.y, 1.0f) * 255);
+	calc.b = (unsigned char)(fminf(calc.color.z, 1.0f) * 255);
+	app->pixels[y * app->win_width + x] = (255 << 24) | (calc.r << 16) | (calc.g << 8) | calc.b;
+}
+
+void	render_scene(t_app *app)
+{
+	int	y;
+	int	x;
+
+	y = 0;
+	while (y < app->win_height)
+	{
+		x = 0;
+		while (x < app->win_width)
+		{
+			render_pixel(app, x, y);
+			x++;
+		}
+		y++;
+	}
+}