Merge main, change compile.bat, add struct gui

Makefile

@@ -9,29 +9,24 @@ OBJ = \
 	src/input.o \
 	src/load.o \
 	src/mesh.o \
+	src/gui.o \
 	src/main.o 
 
 EXAMPLES = \
-	example/basic.o
+	example/basic \
+	example/riemman \
+	example/n-cube \
+	example/n-hilbert-cube \
+	example/lens
 
 CFLAGS = \
 	-I./ext/cglm/include  \
 	-I./ext/glfw/include  \
 	-I./ext/glad  \
+	-I./ext/nuklear  \
 	-I./include  \
 	-Wall -Wno-unused-function -std=c99 -D_GNU_SOURCE \
 
-WAYLAND-LIB = \
-	xdg-shell \
-	relative-pointer-unstable-v1 \
-	xdg-decoration-unstable-v1 \
-	pointer-constraints-unstable-v1 \
-	viewporter \
-	idle-inhibit-unstable-v1  \
-	fractional-scale-v1 \
-	xdg-activation-v1 \
-	wayland
-
 help:
 	@echo "Usage:"
 	@echo "	$(MAKE) windows"
@@ -39,6 +34,8 @@ help:
 	@echo "	$(MAKE) linux-wayland"
 	@echo "	$(MAKE) cocoa"
 	@echo "	$(MAKE) CC=emcc wasm"
+	@echo "Examples"
+	@echo "	$(MAKE) examples"
 	@echo "Clean"
 	@echo "	$(MAKE) clean"
 
@@ -54,11 +51,11 @@ glfw.dll:
 # LINUX
 linux-wayland: $(OBJ)
 	cd ext; $(MAKE) -f glfw.mk linux-wayland; cd -
-	$(CC) -o $(BIN) $(OBJ) ext/libglfw.a -lGL -lm
+	$(CC) -o $(BIN) $(OBJ) ext/libglfw.a -lm
 
 linux-x11: $(OBJ)
 	cd ext; $(MAKE) -f glfw.mk linux-x11; cd -
-	$(CC) -o $(BIN) $(OBJ) ext/libglfw.a -lGL -lm
+	$(CC) -o $(BIN) $(OBJ) ext/libglfw.a -lm 
 
 cocoa: $(OBJ)
 	cd ext; $(MAKE) -f glfw.mk cocoa; cd -
@@ -68,11 +65,8 @@ wasm: $(OBJ)
 	$(CC) -sUSE_WEBGL2=1 -sUSE_GLFW=3 -o $(BIN).html $(OBJ)
 	chmod -x $(BIN).wasm
 
-libglfw.so: 
-	$(CC) -fPIC -shared $(DFLAGS) -D_GLFW_BUILD_DLL -Iext/glfw/deps/wayland ./ext/glfw/src/*.c -o $@ 
-
 clean:
-	rm $(OBJ) $(BIN) 
+	rm $(OBJ) $(BIN) $(EXAMPLES)
 	cd ext; $(MAKE) -f glfw.mk clean; cd -
 
 
@@ -82,3 +76,6 @@ examples: $(EXAMPLES)
 
 .c.o:
 	$(CC) -Wno-implicit-function-declaration $(CFLAGS) -c -o $@ $<
+
+.c:
+	$(CC) -I include  -o $@ $< -lm

README.md

@@ -1,92 +1,62 @@
-# Manigraph: Graficadora de variedades
+# Manigraph
-Diaz Camacho Pedro Emilio
+Manigraph is a cutting-edge tool for multidimentional surface visualization,
+capable of handling over a hundred dimensions. It allows users to interactively
+explore each dimension in an intuitive and dynamic way. 
+Import your .klein files, which represents multidimentional surface.
 
-# Resumen
+# Building
-manigraph es un graficador interactiva de variedades que lee archivos binarios, con la información de
+Manigraph is written in C99, and uses OpenGL 2.0 for the rendering. So you just
-una variedad multidimensional y grafica esta variedad en una proyección tridimensional.
+need a C compiler to build this project.
 
-# Dependencias
+## Source code
-Para poder compilar el proyecto hace falta lo siguiente.
-## Programas
-- `cc`: Cualquier compilador de C.
-- `git`: Gestor de dependencias. (Opcional)
-- `make`: Herramienta para compilar automáticamente. (Opcional) 
-
-## Librerías
-- `openGL`: A cross-platform API for rendering 2D and 3D graphics. (no incluida)
-- `glew`: The OpenGL Extension Wrangler Library (no incluida)
-- `glfw`: A multi-platform library for OpenGL, OpenGL ES, Vulkan, window and input.
-- `cglm`: Highly Optimized 2D / 3D Graphics Math (glm) for C.
-### Linux
-Para compilar `glfw` en linux hacen falta las siguientes librerías. (no incluidas)
-- `x11`: libXcursor-devel libXi-devel libXinerama-devel libXrandr-devel
-- `wayland`: libwayland-dev libxkbcommon-dev wayland-protocols
-
-# Descargas
-- [git](https://git-scm.com/downloads/win)
-- [MinGW](https://github.com/niXman/mingw-builds-binaries/releases)
-- [glew](https://glew.sourceforge.net/)
-
-# Clonar el código fuente
 ```
-git clone https://gitea.adles.top/software/manigraph.git
+git clone https://gitea.axiolutions.top/software/manigraph.git
 cd manigraph
 git submodule update --init --recursive
 ```
 
-# Compilación
+##  Dependecies
-Para compilar manualmente el proyecto se puede usar `make` o ejecutar los comandos manualmente
+You may need system specific dependecies to build *Manigraph*. 
-en el código fuente de `manigraph`.
+[Reference](https://www.glfw.org/docs/3.3/compile.html#compile_deps)
 
-## Make
+### Linux
-Los siguientes comandos sirven para compilar `manigraph` deacuerdo al sistema operativo.
+- `x11`: libXcursor-devel libXi-devel libXinerama-devel libXrandr-devel
+- `wayland`: libwayland-dev libxkbcommon-dev wayland-protocols
+
+## Commands
+A C compiler is needed for building *Manigraph*. and any of those commands
 
 ```
 make windows
+./compile.bat
 make linux-x11
 make linux-wayland
 make cocoa
+make CC=emcc wasm
 ```
 
-## Manualmente
+# Flow of Manigraph
-se pueden compilar el proyecto  manualmente sin necesidad del programa `make`.
+![Flow of Manigraph](doc/flow.svg)
 
-### GLFW
+# Design
-Si tienes problemas compilando `GLFW` puedes checar su página web oficial
+Manigraph is a program designed with sustainability in mind. It is built to be 
-explicando el tema: [Compiling GLFW](https://www.glfw.org/docs/3.3/compile.html).
+portable, resource-efficient, and easy to maintain and scale. The program 
+follows a Data-Oriented Programming (DOP) paradigm, where each file is 
+responsible for a specific data type and manages its own dependencies. Each 
+function is named after the file it resides in, ensuring a clear organization
+and structure.
 
-#### Windows
+The independence of data types allows for efficient scaling and maintenance. 
-```
+The main file is a special case in this design: it is responsible for combining
-cc -fPIC -shared -D_GLFW_WIN32 -D_GLFW_BUILD_DLL ./ext/glfw/src/*.c -o glfw.dll -lgdi32
+all the data types in a comprehensive manner, actng as the workflow of the program.
-```
 
-#### Linux
+# Contributing
-```
+Before commiting use `clang-format`, for coding style consistency. Your 
-cc -fPIC -shared -D_GLFW_X11 -D_GLFW_BUILD_DLL ./ext/glfw/src/*.c -o libglfw.so
+contribution must be whitin the design principles and the concept of Manigraph.
-cc -fPIC -shared -D_GLFW_WAYLAND -D_GLFW_BUILD_DLL ./ext/glfw/src/*.c -o libglfw.so
-```
 
-#### Mac
+The following diagram illustrates the relationships between files, showing how 
-```
+they are connected through dependencies. It also highlights the scenarios where
-cc -fPIC -shared -D_GLFW_COCOA -D_GLFW_BUILD_DLL ./ext/glfw/src/*.c -o libglfw.so
+files are not independent of one another,
-```
 
-### Manigraph
+![File layout](doc/file_layout.svg)
-#### Windows
-```
-cc -I ext/cglm/include/ -I ext/glfw/include/ src/*.c -o manigraph -L. -lglfw -lopengl32 -lglew32
-```
-#### Linux
-```
-cc -I ext/cglm/include/ -I ext/glfw/include/ src/*.c -o manigraph -L. -lglfw -lGL -lGLEW
-```
-#### Mac
-```
-cc -framework GL -I ext/cglm/include/ -I ext/glfw/include/ src/*.c -o manigraph -L. -lglfw -lGLEW
-```
 
-# Ejecutar
-En linux se puede ejecutar el programa sin instalar la libreria de glfw usando:
-```
-LD_LIBRARY_PATH=. ./manigraph
-```

compile.bat

@@ -1,3 +1,3 @@
 :: git submodule update --init --recursive
 :: gcc -fPIC -shared -Iext/glfw/deps/MinGW -D_GLFW_WIN32 -D_GLFW_BUILD_DLL ./ext/glfw/src/*.c -o  glfw.dll -lgdi32
-gcc -I ext/cglm/include -I ext/glfw/include src/*.c -o manigraph -L . -lglfw -lopengl32 -lglew32
+gcc -I ext/glad -I ext/cglm/include -I ext/nuklear -I ext/glfw/include src/*.c ext/glad/glad.c -o manigraph -L . -lglfw -lopengl32

doc/es/dev/estructura-archivos.md

@@ -1,80 +0,0 @@
-# Estructura de archivos
-Díaz Camacho Pedro Emilio
-
-# Headers
-## main.h
-Este archivo incluye los prototipos internos, que va a usar el programa
-funge como api interna para los desarrolladores y debe estar bien documentada.
-
-# codigo fuente
-
-## main.c
-Este archivo debe configurar el programa antes de iniciarse, avisar de los problemas
-que eviten que el programa se ejecute correctamente, iniciar y terminar los objetos que use el
-programa, así como ejecutar la función principal
-### Depende de
-- <GL/gl.h>
-
-## context.c
-En este archivo se escoge un color para limpiar la pantalla y tiene una función para limpiar
-tanto lo dibujado en pantalla, como distintos buffers gráficos.
-### Depende de
-- <GL/gl.h>
-
-## input.c
-Incluye la función `poll_input`, que se ejecuta en cada ciclo del programa y devuelve un
-cuaternion de tipo `float *` que representa la rotación total del cubo, después de interactuar 
-con el programa.
-### Depende de
-- <GLFW/glfw3.h>
-- <cglm/quat.h>
-
-## matrix.c
-Incluye las funciónes para configurar y cargar en la GPU las 3 matrices principales.
-- `fix_matrix` esta matriz no cambia y se usa para configurar la perspectiva y la vista que
-va a usar el programa en todo momento.
-- `mdl_matrix` esta matriz depende de cada mesh y describe la rotación única de cada objeto,
-se usa para rotar los ejes ortogonamente con un indice.
-- `rot_matrix` esta matriz describe la rotación total de todos los objetos y se configura con
-un cuaternio
-### Depende de
-- <cglm/mat4.h>
-- <cglm/cam.h>
-- <cglm/quat.h>
-
-## mesh.c
-Este archivo se usa para crear, destruir y dibujar objetos de tipo `mesh`, un `mesh` es una
-colección de triángulos que describen un objeto multidimensional.
-### Depende de
-- <GL/gl.h>
-- <stdlib.h>
-
-## shader.c
-Debe crear, destruir y usar los shaders, estos shaders son programas para la gpu escritos en glsl para
-además aquí se carga memoria en gpu con las funciónes `gload_`
-### Depende de
-- <GL/gl.h>
-
-## texture.c
-Debe cargar, usar y destruir las texturas, que va a usar la gpu,  también crea una textura 
-para una paleta de colores definida, esto para manipular fácilmente los colores que usará el programa.
-### Depende de
-- <GL/gl.h>
-
-## window.c
-Crea, usa, limpie y cierra una ventana, una ventana tiene un contexto de OpenGL asociado para poder
-dibujar objetos en ella, tiene una función especial para avisar si la ventana está abierta para
-dibujar.
-### Depende de
-- <GLFW/glfw3.h>
-
-# Datos
-## data/cube.h
-Aquí esta la información del mesh de un cubo, este se va a borrar cuando podamos
-importar meshes para graficarlos.
-
-## data/axis.h
-Aquí está el mesh de un solo eje, este se va a rotar para hacer los otros 2 ejes.
-
-## data/shaders.h
-Aquí estan los shaders en glsl para dibujar en pantalla

doc/es/dev/tipos.md

@@ -1,43 +0,0 @@
-# Tipos de datos del proyecto
-Díaz Camacho Pedro Emilio
-
-# Introducción
-En este archivo vamos a detallar los tipos de datos únicos del programa, estos
-tipos de datos son estructuras que representan objetos computacionales y son
-necesarios para integrar las distintas partes del programa.
-
-## window_t
-En `window.c` tenemos una estructura que es la ventana y esta se representa por `window_t`,
-este tipo de dato es un pointer que es manejado por `glfw`.
-
-## id_t
-`id_t` es un tipo de dato que representa objetos de `OpenGL`, estos datos
-normalmente vienen enumerados, y en `manigraph` se usan para representar `shaders`, 
-`programs` y `texture`.
-
-## mesh_t
-Este es un tipo de dato usado para interactuar con `mesh.c`, este representa la triangulación de un
-objeto gráfico y funciona ocultando las variables que `OpenGL` necesita en un `void *`.
-
-## mat4_t
-`mat4_t` se usará para representar las matrices, se usará este tipo de dato exclusivamente
-en `matrix.c` y funcionará con el tipo de dato `mat4` de `cglm`.
-
-## quat_t
-Este tipo de dato sirve para representar un quaternio, este quaternio representa la rotación
-del objeto gráficado en la proyección tridimensional, y se usará para crear una matriz que
-pueda entender `glsl`.
-
-## narray
-`narray` es un tipo de dato que funciona como un `array` enumerado, esto significa que el primer
-elemento del `array` dice cuantos elementos tiene este, sin contar el primer elemento, y los demas elementos 
-funcionan como un `array` normal. 
-
-esta estructura nos ayuda a trabajar con arrays de tamaños arbitrario de forma óptima y sin tener que marcar el
-último elemento de forma especial.
-
-### narray_u8_t
-es un `narray` para `char` y `unsigned char`.
-### narray_float_t
-es un `narray` para `float`.
-

doc/es/tech/diseno.md

@@ -1,59 +0,0 @@
-# Manual de Diseño
-Diaz Camacho Pedro Emilio
-
-# Objetivos
-## Prioridad alta
-- [ ] El programa debe actualizarse cuando interactuan con el.
-- [ ] El usuario quiere:
-	- [X] Ver 3 ejes en todo momento.
-	- [ ] Ver que ejes esta viendo.
-	- [ ] Ver cuantos ejes hay.
-- [X] El usuario quiere:
-	- [X] Rotar estos ejes,
-	- [X] Ver donde quedan los ejes despues de la rotados.
-- [ ] El usuario experimentado quiere ejecutar el programa y pasar la variedad:
-	- [ ] Como argumento del programa.
-	- [ ] Desde la entrada estandar del programa.
-
-## Prioridad media
-
-- [ ] El usuario quiere:
-	- [ ] Cambiar los ejes que se ven por pares.
-	- [ ] Cambiar los ejes donde esta la informacion de los ejes.
-- [ ] El usuario quiere interactuar con el programa:
-	- [ ] Usando solo el mouse.
-	- [ ] Usando solo el teclado.
-
-## Prioridad baja
-- [ ] El usuario quiere guardar las transformaciones como un archivo GIF.
-
-# Camino
-
-0. Graficadora de un cubo.
-	1. Se hace un programa que muestre un cubo.
-	1. Se muestran los 3 ejes del cubo
-	1. Se rota el cubo en sus 3 ejes usando el teclado.
-	1. Se rota el cubo en sus 3 ejes usando el mouse.
-	1. Se muestran la etiqueta de los ejes.
-	1. Se hace el formato de objetos multidimensionales.
-0. Programa ejemplo
-	1. Se hace un programa que divida un cuadrado en triangulos.
-	1. Se mapea cada vertice del triangulo en un punto de la cinta de 
-	mobius usando una parametrizacion
-	1. Se mapea cada vertice del triangulo en un punto de la botella de
-		klein usando una parametrizacion
-	1. Se divide cada lado de un cubo de n dimensiones, en triangulos.
-
-0. Graficadora de variedades
-	1. Se generaliza el programa para usar este formato.
-	1. Se muestran la informacion de los ejes mostrados y cuantos hay.
-	1. Se pueden cambiar los ejes por pares
-		1. Usando el mouse.
-		1. Usando el teclado.
-0. Detalles.
-	1. Se anima el cambio de eje.
-	1. Se hace el generador de GIF.
-	1. Se puede cambiar el shader 
-	1. Documentacion
-
-

doc/es/tech/problemas.md

@@ -1,22 +0,0 @@
-# Problemas esperados al desarrollar
-Diaz Camacho Pedro Emilio
-
-## OpenGL esperan objetos tridimensionales, no de n dimensiones.
-
-Usando glVertexAttribPointer podemos pasar las coordenadas que 
-queramos de los puntos de las variedades, y con ello usar objetos 3D en
-el shader.
-
-## Rotar ejes por pares en una animacion continua.
-- Con glVertexAttribPointer podemos pasar las coordenadas del eje 
-seleccionado, al shader.
-- Con la funcion mix del shader y bloqueando el input, podemos hacer 
-una animacion pasando una variable con la cpu.
-- Cuando la animacion termine intercambiar los indices del layout, 
-usando glVertexAttribPointer otra vez.
-
-## Volumen de la variedad.
-Dado que la funcion parametrizadora es continua, mandamos la frontera
-de un n-cubo a la frontera de una variedad, por lo que solo basta 
-graficar la frontera de la variedad.
-

doc/es/user.md

@@ -1,19 +0,0 @@
-# Manual de usario para Manigraph
-Manigraph es un graficador interactivo de variedades que lee archivos
-binarios de una variedad multidimensional y los proyecta a 3 dimensiones.
-
-# Glosario
-Llamaremos a los 3 ejes de la proyección tridimensional `X`, `Y` y `Z`,
-este sistema de coordenadas es derecho con el eje `Z` apuntando afuera de la pantalla
-
-# Controles
-## Teclado
-- `Q` Rota el eje `X` de forma horaria.
-- `W` Rota el eje `X` de forma antihoraria.
-- `A` Rota el eje `Y` de forma horaria.
-- `S` Rota el eje `Y` de forma antihoraria.
-- `Z` Rota el eje `Z` de forma horaria.
-- `X` Rota el eje `Z` de forma antihoraria.
-## Mouse
-- Hacer `click` en un eje lo selecciona.
-- El `scroll` del mouse hace girar al eje seleccionado.

doc/file_layout.svg

@@ -0,0 +1,10 @@
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1024.1997862712624 780.4323630001875" width="2048.3995725425248" height="1560.864726000375" filter="invert(93%) hue-rotate(180deg)">
+  <!-- svg-source:excalidraw -->
+  
+  <defs>
+    <style class="style-fonts">
+      @font-face { font-family: Excalifont; src: 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example/lens.c

@@ -0,0 +1,54 @@
+#include <math.h>
+#include <stdio.h>
+
+#define KLEIN_IMPLEMENT
+#include <klein/klein.h>
+#include <klein/norm.h>
+#include <klein/parm.h>
+
+int p = 37;
+int q = 7;
+
+void lens(float *d_surface, int *coord, unsigned char * grid)
+{
+
+	float norm = 0;
+	float sphere[4];
+
+	for (int i = 0; i < 4; i++)
+		sphere[i] = ((float)coord[i] / grid[i]) - 0.5;
+
+	for(int i = 0; i < 4; i++)
+		norm += sphere[i] * sphere[i];
+
+	for (int i = 0; i < 4; i++)
+		sphere[i] = sphere[i] / sqrt(norm);
+	
+	d_surface[0] = (sphere[0] * cos(2 * M_PI / p)) - (sphere[1] * sin(2 * M_PI / p));
+	d_surface[1] = (sphere[0] * sin(2 * M_PI / p)) + (sphere[1] * cos(2 * M_PI / p));
+	d_surface[2] = (sphere[2] * cos(2 * M_PI * q / p)) - (sphere[3] * sin(2 * M_PI * q / p));
+	d_surface[3] = (sphere[2] * sin(2 * M_PI * q / p)) + (sphere[3] * cos(2 * M_PI * q / p));
+}
+
+int main(void)
+{
+	char file_name[0xff];
+	struct klein klein;
+	struct parm parametrization = {
+		.grid = (unsigned char[]){8, 8,8,8},
+		.m = 4,
+		.n = 4,
+		.f = lens,
+	};
+
+	snprintf(file_name, 0xff, "lens-%03d-%03d.klein", p, q);
+	printf("writing %s\n", file_name);
+
+	klein_parametrize(&klein, parametrization);
+	klein_normalize(&klein);
+	klein_export_file(klein, file_name);
+
+	free(klein.vertex);
+	free(klein.normals);
+	return 0;
+}

example/n-cube.c

@@ -10,7 +10,7 @@
 #define M_PI 3.14159265358979323846
 #endif
 
-unsigned char dim = 4;
+unsigned char dim = 10;
 
 void cube(float *d_surface, int *coord, unsigned char *grid)
 {
@@ -37,9 +37,9 @@ int main(void)
 	parametrization.grid = malloc(dim);
 	
 	for (i = 0; i < dim; ++i)
-		parametrization.grid[i] = 1 << i;
+		parametrization.grid[i] = 1 + i;
 
-	snprintf(file_name, 0xff, "%03d-cube.klein", dim);
+	snprintf(file_name, 0xff, "cube-%03d.klein", dim);
 	printf("writing %s\n", file_name);
 
 	klein_parametrize(&klein, parametrization);

include/klein/klein.h

@@ -39,8 +39,8 @@ int klein_export_file(struct klein klein, const char * filename)
 	fwrite("\0", 1, 1, file);
 	fwrite(&klein.dim, 1, 1, file);
 	fwrite(&klein.vertex_size, 8, 1, file);
-	fwrite(klein.vertex, 16, klein.vertex_size * klein.dim, file);
+	fwrite(klein.vertex, 4, klein.vertex_size * klein.dim, file);
-	fwrite(klein.normals, 16, klein.vertex_size * klein.dim, file);
+	fwrite(klein.normals, 4, klein.vertex_size * klein.dim, file);
 
 	fclose(file);
 	return 0;

include/klein/norm.h

@@ -1,3 +1,16 @@
+#ifdef KLEIN_NORM_H
+#error file included twice
+#endif
+#define KLEIN_NORM_H
+
+
+#ifndef KLEIN_H
+#warning Please include klein/klein.h
+#endif
+
+void klein_normalize(struct klein * klein);
+
+#ifdef KLEIN_IMPLEMENT
 static inline
 void __calculate_normal( float *p1, float *p2, float *p3, float *normal, unsigned char n)
 { unsigned char i;
@@ -116,3 +129,4 @@ void klein_normalize(struct klein * klein)
 
 	free(norm_vec);
 }
+#endif

src/context.c

@@ -9,7 +9,6 @@
 
 void set_clean_color_context(unsigned char r, unsigned char g, unsigned char b)
 {
-	glEnable(GL_DEPTH_TEST);
 	glClearColor((float)r / 0xff, (float)g / 0xff, (float)b / 0xff, 1.0);
 }
 
@@ -22,4 +21,11 @@ int init_context(void)
 #endif
 }
 
-void clean_context(void) { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); }
+void clean_context(void)
+{
+	/* This is important cos, Nuklear Disable DEPTH TEST */
+	glEnable(GL_BLEND);
+	glEnable(GL_DEPTH_TEST);
+	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+	glClear(GL_COLOR_BUFFER_BIT| GL_DEPTH_BUFFER_BIT );
+}

src/data/cube.h

@@ -0,0 +1,32 @@
+#define A -1,-1,-1,
+#define B -1,-1, 1,
+#define C -1, 1,-1,
+#define D -1, 1, 1,
+#define E  1,-1,-1,
+#define F  1,-1, 1,
+#define G  1, 1,-1,
+#define H  1, 1, 1,
+
+narray_float_t d_cube =
+{
+	3*3*2*6,
+
+	A C E
+	C E G
+
+	E G F
+	G F H
+
+	F H B
+	H B D
+
+	B D A
+	D A C
+
+	C D G
+	D G H
+
+	A B E 
+	B E F
+
+};

src/data/shaders.h

@@ -61,7 +61,7 @@ const char *fs_plain =
 
 	"void main()"
 	"{"
-	"	FragColor = vec4(pow(vec3(Color),vec3(1.0/2.2)),Color.a);"
+	"	FragColor = vec4(pow(vec3(Color),vec3(1.0/1.0)),Color.a);"
 	"}";
 
 const char *fs =
@@ -92,7 +92,7 @@ const char *fs =
 	"   float specular = pow(abs(dot(normalize(Normal), halfwayDir)), 32.0);\n"
 	"   float diffuse = abs(dot(normalize(Normal), lightDir));\n"
 
-	"   vec3 result = pow((0.5 + 0.5*diffuse + 1.5*specular) * Color.rgb, "
+	"   vec3 result = pow((0.5 + 0.5*diffuse + 1*specular) * Color.rgb, "
 	"vec3(1.0/2.2));\n"
 	"   FragColor = vec4(result, Color.a);\n"
 	"}";

src/gui.c

@@ -0,0 +1,83 @@
+#include <glad.h>
+#include "main.h"
+#define MAX_VERTEX_BUFFER 512 * 1024
+#define MAX_ELEMENT_BUFFER 128 * 1024
+#define NK_INCLUDE_FIXED_TYPES
+#define NK_INCLUDE_STANDARD_IO
+#define NK_INCLUDE_STANDARD_VARARGS
+#define NK_INCLUDE_DEFAULT_ALLOCATOR
+#define NK_INCLUDE_VERTEX_BUFFER_OUTPUT
+#define NK_INCLUDE_FONT_BAKING
+#define NK_INCLUDE_DEFAULT_FONT
+#define NK_IMPLEMENTATION
+#define NK_GLFW_GL3_IMPLEMENTATION
+#include <nuklear.h>
+#include <demo/glfw_opengl3/nuklear_glfw_gl3.h>
+
+struct gui gui =
+{
+	.file_name = {0},
+	.projection = (struct projection){ .mesh=NULL, .x =0, .y=1, .z=2 },
+};
+
+float surface_color[4] = {(float)0x2F/0xFF, (float)0x3C/0xFF, (float)0x7E/0xFF, (float)0xff/0xFF};
+
+
+static inline
+void restore_surface_color( void )
+{
+	gui.picked_color[0] = surface_color[0];
+	gui.picked_color[1] = surface_color[1];
+	gui.picked_color[2] = surface_color[2];
+	gui.picked_color[3] = surface_color[3];
+}
+
+struct nk_glfw glfw ={0};
+struct nk_context * context;
+
+void draw_gui( void )
+{
+	nk_glfw3_new_frame(&glfw);
+
+	if (nk_begin(context, "MANIGRAPH", nk_rect(10, 10, 256, 256),
+			NK_WINDOW_BORDER |NK_WINDOW_SCALABLE | NK_WINDOW_MOVABLE | NK_WINDOW_MINIMIZABLE) )
+	{
+
+		/* Color picker para personalización */
+		{
+			struct nk_colorf * p = (void*)&gui.picked_color;
+			nk_layout_row_dynamic(context, 120, 1);
+			*p = nk_color_picker(context, *p, NK_RGBA);
+		}
+
+		nk_layout_row_dynamic(context, 20, 1);
+		if (nk_button_label(context, "Restablecer"))
+			restore_surface_color();
+
+
+		nk_layout_row_dynamic(context, 12, 1);
+		nk_label(context, (char*)gui.file_name, NK_TEXT_ALIGN_LEFT);
+
+		nk_label_colored(context, "Atajos de teclado:", NK_TEXT_ALIGN_LEFT, nk_rgb(255, 255, 255)); // Encabezado
+		nk_label(context, "  - W/S: Rotar eje X", NK_TEXT_ALIGN_LEFT);
+		nk_label(context, "  - A/D: Rotar eje Y", NK_TEXT_ALIGN_LEFT);
+		nk_label(context, "  - Z/X: Rotar eje Z", NK_TEXT_ALIGN_LEFT);
+	}
+
+	nk_end(context);
+	nk_glfw3_render(&glfw, NK_ANTI_ALIASING_ON, MAX_VERTEX_BUFFER, MAX_ELEMENT_BUFFER);
+}
+
+
+void init_gui( window_t window )
+{
+	struct nk_font_atlas * atlas;
+
+	restore_surface_color();
+
+	{
+		context = nk_glfw3_init(&glfw,(GLFWwindow*) window, NK_GLFW3_DEFAULT );
+		nk_glfw3_font_stash_begin(&glfw, &atlas);
+		nk_glfw3_font_stash_end(&glfw);
+	}
+}

src/input.c

@@ -1,15 +1,18 @@
 #include "main.h"
+#include <glad.h>
 #include <GLFW/glfw3.h>
 #include <cglm/quat.h>
 #include <stdio.h>
+#include <string.h>
 
 #define ANGLE ((float)0x01 / 0xff * 2 * GLM_PI)
 
 unsigned char selected_axis = 0;
-int window_width;
+int window_width = 512;
-int window_height;
+int window_height = 512;
 
 unsigned char animate_index = 0;
+extern struct gui gui;
 
 versor q = GLM_QUAT_IDENTITY_INIT;
 
@@ -19,7 +22,13 @@ vec3 axis[3] = {
 	{0, 0, 1},
 };
 
-extern struct projection projection;
+
+void __error_callback_input(int x, const char * msg )
+{
+	mlog("[GLFW] ");
+	mlog(msg);
+	mlog("\n");
+}
 
 void __key_callback_input(
 	GLFWwindow *window, int key, int scancode, int action, int mods)
@@ -33,41 +42,41 @@ void __key_callback_input(
 
 		selected_coord = key - GLFW_KEY_0 - 1;
 
-		if (selected_coord >= projection.m)
+		if (selected_coord >= gui.projection.m)
 			return;
-		if (selected_coord == projection.x)
+		if (selected_coord == gui.projection.x)
 			return;
-		if (selected_coord == projection.y)
+		if (selected_coord == gui.projection.y)
 			return;
-		if (selected_coord == projection.z)
+		if (selected_coord == gui.projection.z)
 			return;
 
-		selected_coord = projection.w;
+		selected_coord = gui.projection.w;
 	}
 
-	if (projection.w >= projection.m)
+	if (gui.projection.w >= gui.projection.m)
 		return;
 
 	switch (key)
 	{
 		unsigned char tmp;
 	case GLFW_KEY_I:
-		tmp = projection.w;
+		tmp = gui.projection.w;
-		projection.w = projection.x;
+		gui.projection.w = gui.projection.x;
-		projection.x = tmp;
+		gui.projection.x = tmp;
 
 		animate_index = 1;
 		break;
 	case GLFW_KEY_O:
-		tmp = projection.w;
+		tmp = gui.projection.w;
-		projection.w = projection.y;
+		gui.projection.w = gui.projection.y;
-		projection.y = tmp;
+		gui.projection.y = tmp;
 		animate_index = 2;
 		break;
 	case GLFW_KEY_P:
-		tmp = projection.w;
+		tmp = gui.projection.w;
-		projection.w = projection.z;
+		gui.projection.w = gui.projection.z;
-		projection.z = tmp;
+		gui.projection.z = tmp;
 		animate_index = 3;
 		break;
 	}
@@ -128,18 +137,20 @@ void __scroll_callback_input(GLFWwindow *window, double xoffset, double yoffset)
 	glm_quat_rotatev(r, axis[2], axis[2]);
 }
 
-void __drop_callback_input(GLFWwindow *window, int count, char **path)
+void __drop_callback_input(GLFWwindow *window, int count, unsigned char **path)
 {
 	struct surface surface;
 
 	if (create_surface_klein(*path, &surface))
 		return;
 
-	if (!(projection.mesh = create_mesh(surface)))
+	if (!(gui.projection.mesh = create_mesh(surface)))
 		return;
 
-	projection.m = surface.dim;
+	strcpy(gui.file_name, *path);
-	set_projection_mesh(projection);
+
+	gui.projection.m = surface.dim;
+	set_projection_mesh(gui.projection);
 
 	free(surface.norm);
 	free(surface.data);
@@ -187,13 +198,5 @@ end:
 	glm_quat_rotatev(p, axis[2], axis[2]);
 	glm_quat_normalize(q);
 
-	// LOG INFO
-	if (0)
-	{
-		printf("QUAT: %2.5f %2.5f %2.5f %2.5f\n", q[0], q[1], q[2], q[3]);
-		printf("PROY: %3d %3d %3d (%3d)\n", projection.x, projection.y,
-			projection.z, projection.w);
-		printf("\n");
-	}
 	return q;
 }

src/klein.c

@@ -35,10 +35,10 @@ int create_surface_klein(unsigned char *path, struct surface *surface)
 
 	size = surface->dim * surface->vertex;
 
-	surface->data = malloc(16 * size);
+	surface->data = malloc(4 * size);
-	fread(surface->data, 16, size, file);
+	fread(surface->data, 4, size, file);
 
-	surface->norm = malloc(16 * size);
+	surface->norm = malloc(4 * size);
-	fread(surface->norm, 16, size, file);
+	fread(surface->norm, 4, size, file);
 	return 0;
 }

src/load.c

@@ -22,13 +22,7 @@ void rot_matrix_load(id_t shader, quat_t q)
 	load_mat4_to_shader(shader, "rot", (mat4_t)m);
 }
 
-void color_load(id_t shader, unsigned char color[4])
+void color_load(id_t shader, float res[4])
 {
-	float res[4];
-
-	res[0] = (float)color[0] / 0xff;
-	res[1] = (float)color[1] / 0xff;
-	res[2] = (float)color[2] / 0xff;
-	res[3] = (float)color[3] / 0xff;
 	load_float4_to_shader(shader, "color", res);
 }

src/main.c

@@ -7,6 +7,11 @@
 #define WIDTH 512
 #define HEIGHT 512
 
+#include <glad.h>
+
+float *generate_data_surface(unsigned int, unsigned char *);
+float *generate_normals_surface(float *, unsigned char);
+
 #ifdef EMSCRIPTEN
 #include <emscripten.h>
 #endif
@@ -15,11 +20,13 @@
 #define M_PI 3.14159
 #endif
 
-struct projection projection = {.x = 0, .y = 1, .z = 2, .w = 3, .mesh = NULL};
+window_t window;
+id_t shader, shader_plain;
 
 const char *wname = "manigraph: manifold grapher";
 
-unsigned char color[4] = {0x2F, 0x3C, 0x7E, 0xff};
+extern volatile unsigned char animate_index;
+extern struct gui gui;
 
 void mlog(char *msg)
 {
@@ -28,11 +35,6 @@ void mlog(char *msg)
 #endif
 }
 
-window_t window;
-id_t shader, shader_plain;
-
-extern volatile unsigned char animate_index;
-
 #ifndef EMSCRIPTEN
 static inline
 #endif
@@ -44,10 +46,16 @@ static inline
 
 	q = poll_input(window);
 
+	gui.quat[0] = q[0];
+	gui.quat[1] = q[1];
+	gui.quat[2] = q[2];
+	gui.quat[3] = q[3];
+
+
 	rot_matrix_load(shader, q);
 	rot_matrix_load(shader_plain, q);
-	color_load(shader, color);
+	color_load(shader, gui.picked_color);
-	color_load(shader_plain, color);
+	color_load(shader_plain, gui.picked_color);
 
 	{
 		static float angle = 0;
@@ -59,7 +67,7 @@ static inline
 
 			load_float_to_shader(shader, "angle", angle);
 			load_float_to_shader(shader_plain, "angle", angle);
-			set_projection_mesh(projection);
+			set_projection_mesh(gui.projection);
 		}
 
 		if (animate_index)
@@ -74,16 +82,19 @@ static inline
 	}
 	clean_context();
 
-	if (!projection.mesh)
-		return;
 
-	draw_mesh(shader, projection.mesh);
+	if (gui.projection.mesh)
-	draw_mesh_lines(shader_plain, projection.mesh);
+	{
+		draw_mesh(shader, gui.projection.mesh);
+		draw_mesh_lines(shader_plain, gui.projection.mesh);
+	}
+
+	draw_gui();
+	
 }
 
 int main(void)
 {
-
 	mlog("[VENTANA] Inicializando...\n");
 	{
 		if (!(window = init_window(WIDTH, HEIGHT, wname)))
@@ -129,6 +140,11 @@ int main(void)
 		fix_matrix_load(shader_plain, (float)WIDTH / HEIGHT);
 	}
 
+	mlog("[GUI] Inicializando...\n");
+	{
+		init_gui(window);
+	}
+
 	mlog("[MAIN LOOP] Inicializando...\n");
 #ifdef EMSCRIPTEN
 	emscripten_set_main_loop(&main_loop, 60, 1);
@@ -140,7 +156,7 @@ int main(void)
 	mlog("[MAIN LOOP] Terminando...\n");
 
 	mlog("[MESH] Destruyendo...\n");
-	destroy_mesh(projection.mesh);
+	destroy_mesh(gui.projection.mesh);
 	mlog("[SHADER] Destruyendo...\n");
 	destroy_shader(shader_plain);
 	mlog("[SHADER] Destruyendo...\n");
@@ -150,12 +166,12 @@ int main(void)
 	return 0;
 
 error_context:
-	mlog("[SHADER] Destruyendo...\n");
-	destroy_shader(shader_plain);
-error_shader_plain:
 	mlog("[SHADER] Destruyendo...\n");
 	destroy_shader(shader);
 error_shader:
+	mlog("[SHADER] Destruyendo...\n");
+	destroy_shader(shader_plain);
+error_shader_plain:
 	mlog("[WINDOW] Destruyendo...\n");
 	close_window(window);
 error_window:

src/main.h

@@ -5,6 +5,7 @@
 */
 
 #define DEBUG
+#define GLFW_INCLUDE_NONE
 
 typedef const void *window_t;
 typedef unsigned int id_t;
@@ -22,12 +23,19 @@ typedef float *mat4_t;
 		w: the coordanate of the w axis.
 */
 
-struct projection
+struct gui
 {
+	float quat[4];
+	float picked_color[4];
+	char file_name[0xff];
+	struct projection
+	{
 		mesh_t mesh;
 		unsigned char m, x, y, z, w;
+	} projection;
 };
 
+
 /*
 	this structure has all the information to generate
 	a mesh, where:
@@ -163,7 +171,7 @@ void rot_matrix_load(id_t shader, quat_t q);
 /*
  */
 
-void color_load(id_t shader, unsigned char color[4]);
+void color_load(id_t shader, float* color);
 
 id_t config_texture(unsigned short type);
 
@@ -179,3 +187,6 @@ void destroy_texture(id_t texture);
 id_t create_palette_texture(const unsigned char colors[][4], unsigned char n);
 
 quat_t poll_input(window_t window);
+
+void draw_gui( void );
+void init_gui(  window_t window );

src/mesh.c

@@ -111,6 +111,7 @@ void draw_mesh_lines(id_t shader, mesh_t p)
 #ifndef EMSCRIPTEN
 	glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
 	glDrawArrays(GL_TRIANGLES, 0, obj->vertex);
+	glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
 #else
 	glDrawArrays(GL_LINES, 0, obj->vertex);
 #endif

src/window.c

@@ -8,6 +8,7 @@ void __mouse_callback_input(GLFWwindow *, int, int, int);
 void __scroll_callback_input(GLFWwindow *, double, double);
 void __key_callback_input(GLFWwindow *, int, int, int, int);
 void __drop_callback_input(GLFWwindow *, int, const char **);
+void __error_callback_input(int, const char *);
 
 window_t init_window(unsigned int w, unsigned int h, const char *name);
 
@@ -44,6 +45,7 @@ static void __limit_fps_window(int max_fps)
 window_t init_window(unsigned int width, unsigned int height, const char *title)
 {
 	window_t window;
+	glfwSetErrorCallback(__error_callback_input);
 
 	if (!glfwInit())
 		return NULL;
@@ -51,6 +53,7 @@ window_t init_window(unsigned int width, unsigned int height, const char *title)
 	glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
 	glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
 	glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
+	glfwWindowHint(GLFW_OPENGL_DEBUG_CONTEXT, 1); 
 
 	window = (window_t)glfwCreateWindow(width, height, title, NULL, NULL);
 	if (!(window))
@@ -67,15 +70,18 @@ window_t init_window(unsigned int width, unsigned int height, const char *title)
 	glfwSetKeyCallback((GLFWwindow *)window, __key_callback_input);
 	glfwSetDropCallback((GLFWwindow *)window, __drop_callback_input);
 
-	__window_callback_input((GLFWwindow *)window, width, height);
-
 	return window;
 }
 
 void use_window(window_t window) { glfwMakeContextCurrent((void *)window); }
 
+extern int window_width, window_height;
+
 int is_open_window(window_t window)
 {
+	/* Restore window proportions if Nuklear breaks it */
+	__window_callback_input((GLFWwindow *)window, window_width, window_height);
+
 	glfwSwapBuffers((void *)window);
 	glfwPollEvents();