WIP: Rotations in R4, and change colors

src/matrix.c

@@ -38,7 +38,7 @@ void load_fix_matrix(id_t shader, float ratio)
 
 void load_mdl_matrix(id_t shader, unsigned char i, unsigned char c)
 {
-	load_float_to_shader(shader, "idx", c);
+	load_uint_to_shader(shader, "idx", c);
 	load_mat4_to_shader(shader, "mdl", (mat4_t)ortho[i]);
 }