VERSIÓ 1.5.15:

- [FIX] Els shaders funcionen correctament al canviar zoom o fullscreen

source/backends/SDL3/shader.cpp

@@ -29,7 +29,7 @@ namespace backend
         SDL_Point win_size = {640, 480};
         SDL_FPoint tex_size = {320, 240};
         bool can_use_opengl = false;
-        bool using_opengl = false;
+        bool enabled = false;
         const char *vShaderSource = nullptr;
         const char *fShaderSource = nullptr;
 
@@ -155,7 +155,7 @@ namespace backend
         {
             programId = 0;
             can_use_opengl = false;
-            using_opengl = false;
+            //using_opengl = false;
         }
 
         void reinit()
@@ -210,12 +210,12 @@ namespace backend
             fShaderSource = fshader;
             programId = 0;
             can_use_opengl = false;
-            using_opengl = false;
+            //using_opengl = false;
             reinit();
         }
 
-        void enable() { if (can_use_opengl) using_opengl = true; }
-        void disable() { using_opengl = false; }
+        void enable() { enabled = true; }
+        void disable() { enabled = false; }
 
         void render()
         {
@@ -225,7 +225,7 @@ namespace backend
             SDL_RenderClear(backend::video::renderer);
             SDL_FlushRenderer(backend::video::renderer);
 
-            if (using_opengl)
+            if (can_use_opengl && enabled)
             {
                 GLint oldProgramId;
                 if (programId != 0)