- [FIX] glViewport() s'ha de fixar quan estem treballant contra la pantalla, al final

- [FIX] invertida la textura en l'eix Y

main.cpp

@@ -78,7 +78,7 @@ bool initGLExtensions() {
 #endif
 
 GLuint compileShader(const char* source, GLuint shaderType) {
-	std::cout << "Compilando shader:" << std::endl << source << std::endl;
+	//std::cout << "Compilando shader:" << std::endl << source << std::endl;
 	// Create ID for shader
 	GLuint result = glCreateShader(shaderType);
 	// Define shader text
@@ -170,14 +170,16 @@ void presentBackBuffer(SDL_Renderer *renderer, SDL_Window* win, SDL_Texture* bac
 	// Coordenadas de la ventana donde pintar.
 	minx = 0.0f;
 	miny = 0.0f;
-	maxx = WIN_WIDTH;
-	maxy = WIN_HEIGHT;
+	maxx = WORLD_WIDTH;
+	maxy = WORLD_HEIGHT;
 
 	minu = 0.0f;
 	maxu = 1.0f;
 	minv = 0.0f;
 	maxv = 1.0f;
 
+    glViewport(0, 0, WIN_WIDTH, WIN_HEIGHT);
+
 	glBegin(GL_TRIANGLE_STRIP);
 		glTexCoord2f(minu, minv);
 		glVertex2f(minx, miny);