shaderss

.vscode/settings.json

@@ -9,7 +9,9 @@
 		"texture.h": "c",
 		"libft.h": "c",
 		"render.h": "c",
-		"math.h": "c"
+		"math.h": "c",
+		"mlx42_int.h": "c",
+		"glad.h": "c"
 	},
 	"cmake.ignoreCMakeListsMissing": true
 }

Makefile

@@ -1,12 +1,12 @@
 # **************************************************************************** #
 #                                                                              #
-#                                                         ::::::::             #
+#                                                         :::      ::::::::    #
-#    Makefile                                           :+:    :+:             #
+#    Makefile                                           :+:      :+:    :+:    #
-#                                                      +:+                     #
+#                                                     +:+ +:+         +:+      #
-#    By: whaffman <whaffman@student.codam.nl>         +#+                      #
+#    By: qmennen <qmennen@student.codam.nl>         +#+  +:+       +#+         #
-#                                                    +#+                       #
+#                                                 +#+#+#+#+#+   +#+            #
 #    Created: 2024/10/15 11:48:46 by whaffman          #+#    #+#              #
-#    Updated: 2025/05/20 21:27:02 by whaffman      ########   odam.nl          #
+#    Updated: 2025/05/22 16:48:29 by qmennen          ###   ########.fr        #
 #                                                                              #
 # **************************************************************************** #
 
@@ -24,13 +24,15 @@ LIBFT_INC_PATH = $(LIBFT_PATH)/inc
 LIBFT          = $(LIBFT_PATH)/libft.a
 
 MLX42_PATH = $(LIB_PATH)/MLX42
+MLX42_TOP_INCLUDE = $(MLX42_PATH)/include
 MLX42_INC_PATH = $(MLX42_PATH)/include/MLX42
+GLAD_INC_PATH = $(MLX42_PATH)/include/glad
 MLX42 = $(MLX42_PATH)/build/libmlx42.a
 
 CC = cc
 RM = rm -rf
 
-INCLUDES = -I./$(INC_PATH) -I./$(LIBFT_INC_PATH) -I./$(MLX42_INC_PATH)
+INCLUDES = -I./$(INC_PATH) -I./$(LIBFT_INC_PATH) -I./$(MLX42_INC_PATH) -I./$(GLAD_INC_PATH) -I./$(MLX42_TOP_INCLUDE)
 
 UNAME_S	:= $(shell uname -s)
 ifeq ($(UNAME_S),Linux)

assets/shaders/frag.glsl

@@ -0,0 +1,67 @@
+#version 330 core
+
+in vec2 TexCoord;
+flat in int TexIndex;
+out vec4 FragColor;
+
+uniform sampler2D Texture0;
+uniform sampler2D Texture1;
+uniform sampler2D Texture2;
+uniform sampler2D Texture3;
+
+uniform float u_time;
+uniform vec2 u_resolution;
+
+float rand(vec2 co) {
+    return fract(sin(dot(co.xy, vec2(12.9898,78.233))) * 43758.5453);
+}
+
+float hash(vec2 p) {
+    p = fract(p * vec2(123.34, 456.21));
+    p += dot(p, p + 45.32);
+    return fract(p.x * p.y);
+}
+
+void main()
+{
+    vec4 texColor;
+    switch (TexIndex) {
+        case 0: texColor = texture(Texture0, TexCoord); break;
+        case 1: texColor = texture(Texture1, TexCoord); break;
+        case 2: texColor = texture(Texture2, TexCoord); break;
+        case 3: texColor = texture(Texture3, TexCoord); break;
+        default: texColor = vec4(1.0, 0.0, 0.0, 1.0); break;
+    }
+
+	if (TexIndex == 1) {
+		vec2 uv = gl_FragCoord.xy / u_resolution.xy;
+		uv.x *= u_resolution.x / u_resolution.y;
+		float blockSize = 8.0;
+
+		vec2 blockUV = floor(gl_FragCoord.xy / blockSize);
+		float noise = hash(blockUV + vec2(u_time * 3.0, u_time * 7.0));
+		float noise2 = hash(blockUV + vec2(u_time * 13.0, u_time * 3.0));
+		float noise3 = hash(blockUV + vec2(u_time * 17.0, u_time * 13.0));
+
+		// Horizontal bands
+		noise *= 0.9 + 0.1 * sin(uv.y * 400.0);
+		noise2 *= 0.9 + 0.1 * sin(uv.y * 400.0);
+		noise3 *= 0.9 + 0.1 * sin(uv.y * 400.0);
+		
+		float offset = 0.01;
+		float r = texture(Texture1, TexCoord + vec2(offset, 0.0)).r;
+		float g = texture(Texture1, TexCoord).g;
+		float b = texture(Texture1, TexCoord - vec2(offset, 0.0)).b;
+		vec3 color = vec3(r, g, b);
+
+		float strength = 0.4;
+		vec3 noisyColor = mix(color.rgb, vec3(noise, noise2, noise3), strength);
+		// float flicker = 0.75 + sin(u_time * 6.0 + sin(u_time * 3)) * 0.25;
+		float flicker = 0.75 + 0.25 * sin(u_time + sin(u_time * 7.0));
+
+		FragColor = vec4(noisyColor, texColor.a * flicker);
+	} else {
+		FragColor = texColor;
+	}
+}
+

assets/shaders/vert.glsl

@@ -0,0 +1,16 @@
+#version 330 core
+layout(location = 0) in vec3 aPos;
+layout(location = 1) in vec2 aTexCoord;
+layout(location = 2) in int aTexIndex;
+
+out vec2 TexCoord;
+flat out int TexIndex;
+uniform mat4 ProjMatrix;
+
+void main()
+{
+	// Add view bobbing
+	gl_Position = ProjMatrix * vec4(aPos, 1.0);
+	TexCoord = aTexCoord;
+	TexIndex = aTexIndex;
+}

src/game.c

@@ -6,11 +6,13 @@
 /*   By: qmennen <qmennen@student.codam.nl>         +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2025/04/15 15:46:08 by qmennen           #+#    #+#             */
-/*   Updated: 2025/05/22 14:03:26 by qmennen          ###   ########.fr       */
+/*   Updated: 2025/05/22 17:48:48 by qmennen          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
 #include "cub3d.h"
+#include "glad.h"
+#include "MLX42_Int.h"
 
 int	game_create(t_game **game)
 {
@@ -39,13 +41,17 @@ void	free_game(t_game **game)
 void	game_loop(void *param)
 {
 	t_game		*game;
+	mlx_ctx_t	*ctx;
 	double		delta_time;
 	static int	fps = 0;
 
 	game = (t_game *)param;
+	ctx = (mlx_ctx_t *)game->screen->mlx->context;
 	game->framecount++;
 	delta_time = game->screen->mlx->delta_time;
 	fps += (int)(1.f / delta_time);
+	glUniform1f(glGetUniformLocation(ctx->shaderprogram, "u_time"), glfwGetTime());
+	glUniform2f(glGetUniformLocation(ctx->shaderprogram, "u_resolution"), game->screen->width, game->screen->height);
 	if (game->framecount % 20 == 0)
 	{
 		game->fps = (int)(fps / 20);

src/main.c

@@ -6,11 +6,12 @@
 /*   By: qmennen <qmennen@student.codam.nl>         +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2025/04/15 16:01:29 by qmennen           #+#    #+#             */
-/*   Updated: 2025/05/22 14:06:24 by qmennen          ###   ########.fr       */
+/*   Updated: 2025/05/22 17:29:23 by qmennen          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
 #include "cub3d.h"
+#include "glad.h"
 
 int	main(int argc, char **argv)
 {
@@ -20,13 +21,13 @@ int	main(int argc, char **argv)
 	game = NULL;
 	if (!valid_arguments(argc, argv))
 		return (EXIT_FAILURE);
+	shader_init(&game);
 	if (!initialize_cub3d(&game, argv[1]))
 	{
 		perror("initialize_cub3d");
 		game_free(game);
 		return (EXIT_FAILURE);
 	}
-	perror("after init");
 	mlx_loop(game->screen->mlx);
 	game_terminate(game);
 	return (EXIT_SUCCESS);

src/screen.c

@@ -1,12 +1,12 @@
 /* ************************************************************************** */
 /*                                                                            */
-/*                                                        ::::::::            */
+/*                                                        :::      ::::::::   */
-/*   screen.c                                           :+:    :+:            */
+/*   screen.c                                           :+:      :+:    :+:   */
-/*                                                     +:+                    */
+/*                                                    +:+ +:+         +:+     */
-/*   By: whaffman <whaffman@student.codam.nl>         +#+                     */
+/*   By: qmennen <qmennen@student.codam.nl>         +#+  +:+       +#+        */
-/*                                                   +#+                      */
+/*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2025/04/15 15:30:27 by qmennen           #+#    #+#             */
-/*   Updated: 2025/05/14 20:19:21 by whaffman      ########   odam.nl         */
+/*   Updated: 2025/05/22 16:56:31 by qmennen          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 

src/shader/shaders.c

@@ -0,0 +1,56 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   shaders.c                                          :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: qmennen <qmennen@student.codam.nl>         +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2025/05/08 18:27:59 by qmennen           #+#    #+#             */
+/*   Updated: 2025/05/22 16:32:21 by qmennen          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+# include "cub3d.h"
+# include "glad.h"
+
+extern char *vert_shader;
+extern char *frag_shader;
+
+char *read_shader(int type)
+{
+	char	*shader;
+	char	*target;
+	int		fd;
+
+	if (type == 1)
+		target = "./assets/shaders/vert.glsl";
+	else
+		target = "./assets/shaders/frag.glsl";
+	fd = open(target, O_RDONLY);
+	if (fd < 0)
+	{
+		perror("Error opening shader file");
+		return (NULL);
+	}
+	shader = malloc(4096);
+	if (!shader)
+	{
+		perror("Error allocating memory for shader");
+		close(fd);
+		return (NULL);
+	}
+	read(fd, shader, 4096);
+	close(fd);
+	return (shader);
+}
+
+int	shader_init(t_game **game)
+{
+	vert_shader = read_shader(1);
+	if (!vert_shader)
+		return (FAILURE);
+	frag_shader = read_shader(2);
+	if (!frag_shader)
+		return (FAILURE);
+	return (SUCCESS);
+}