Merge branch 'main' into experimental

src/main.h

@@ -57,7 +57,7 @@ void set_projection_mesh( struct projection );
 
 void destroy_mesh(mesh_t p);
 
-void draw_mesh(mesh_t p);
+void draw_mesh(mesh_t p, char lines);
 
 /*
 	Set background color:
@@ -99,6 +99,14 @@ unsigned char load_program_to_shader(id_t shader, const char * src, unsigned int
 
 void load_float_to_shader(id_t shader, char * var, float f);
 
+/*
+	load unsigned int to shader:
+		var: name of glsl variable.
+		u: unsigned int to load
+*/
+
+void load_uint_to_shader(id_t shader, char * var, unsigned int u);
+
 /*
 	load matrix 4 to shader:
 		var: name of glsl variable.