Review BeginTextureMode() usage

Moved outside BeginDrawing()/EndDrawing() to illustrate drawing is happening to an external texture (not screen)

3 files changed, 39 insertions, 47 deletions

diff --git a/examples/core/core_split_screen.c b/examples/core/core_split_screen.c
index 0bfdb84a..31c3fb4b 100644
--- a/examples/core/core_split_screen.c
+++ b/examples/core/core_split_screen.c
@@ -89,7 +89,7 @@ int main(void)
         // this moves thigns at 10 world units per second, regardless of the actual FPS
         float offsetThisFrame = 10.0f*GetFrameTime();
 
-        // Move player 1 forward and backwards (no turning)
+        // Move Player1 forward and backwards (no turning)
         if (IsKeyDown(KEY_W))
         {
             cameraPlayer1.position.z += offsetThisFrame;
@@ -101,7 +101,7 @@ int main(void)
             cameraPlayer1.target.z -= offsetThisFrame;
         }
 
-        // Move player 2 forward and backwards (no turning)
+        // Move Player2 forward and backwards (no turning)
         if (IsKeyDown(KEY_UP))
         {
             cameraPlayer2.position.x += offsetThisFrame;
@@ -116,7 +116,7 @@ int main(void)
 
         // Draw
         //----------------------------------------------------------------------------------
-        // Draw player 1's view to the render texture
+        // Draw Player1 view to the render texture
         BeginTextureMode(screenPlayer1);
             ClearBackground(SKYBLUE);
             BeginMode3D(cameraPlayer1);
@@ -125,7 +125,7 @@ int main(void)
             DrawText("PLAYER1 W/S to move", 0, 0, 20, RED);
         EndTextureMode();
 
-        // Draw player 2's view to the render texture
+        // Draw Player2 view to the render texture
         BeginTextureMode(screenPlayer2);
             ClearBackground(SKYBLUE);
             BeginMode3D(cameraPlayer2);
@@ -134,21 +134,21 @@ int main(void)
             DrawText("PLAYER2 UP/DOWN to move", 0, 0, 20, BLUE);
         EndTextureMode();
 
-        // Draw both view render textures to the screen side by side
+        // Draw both views render textures to the screen side by side
         BeginDrawing();
             ClearBackground(BLACK);
-            DrawTextureRec(screenPlayer1.texture, splitScreenRect, (Vector2) { 0, 0 }, WHITE);
-            DrawTextureRec(screenPlayer2.texture, splitScreenRect, (Vector2) { screenWidth/2.0f, 0 }, WHITE);
+            DrawTextureRec(screenPlayer1.texture, splitScreenRect, (Vector2){ 0, 0 }, WHITE);
+            DrawTextureRec(screenPlayer2.texture, splitScreenRect, (Vector2){ screenWidth/2.0f, 0 }, WHITE);
         EndDrawing();
     }
 
     // De-Initialization
     //--------------------------------------------------------------------------------------
-    UnloadRenderTexture(screenPlayer1);
-    UnloadRenderTexture(screenPlayer2);
-    UnloadTexture(textureGrid);
+    UnloadRenderTexture(screenPlayer1); // Unload render texture
+    UnloadRenderTexture(screenPlayer2); // Unload render texture
+    UnloadTexture(textureGrid);         // Unload texture
     
-    CloseWindow();        // Close window and OpenGL context
+    CloseWindow();                      // Close window and OpenGL context
     //--------------------------------------------------------------------------------------
 
     return 0;
diff --git a/examples/core/core_vr_simulator.c b/examples/core/core_vr_simulator.c
index bba90b82..65f0dec6 100644
--- a/examples/core/core_vr_simulator.c
+++ b/examples/core/core_vr_simulator.c
@@ -105,30 +105,26 @@ int main(void)
 
         // Draw
         //----------------------------------------------------------------------------------
-        BeginDrawing();
-
+        BeginTextureMode(target);
             ClearBackground(RAYWHITE);
+            BeginVrStereoMode(config);
+                BeginMode3D(camera);
 
-            BeginTextureMode(target);
-                ClearBackground(RAYWHITE);
-                BeginVrStereoMode(config);
-                    BeginMode3D(camera);
-
-                        DrawCube(cubePosition, 2.0f, 2.0f, 2.0f, RED);
-                        DrawCubeWires(cubePosition, 2.0f, 2.0f, 2.0f, MAROON);
-                        DrawGrid(40, 1.0f);
-
-                    EndMode3D();
-                EndVrStereoMode();
-            EndTextureMode();
+                    DrawCube(cubePosition, 2.0f, 2.0f, 2.0f, RED);
+                    DrawCubeWires(cubePosition, 2.0f, 2.0f, 2.0f, MAROON);
+                    DrawGrid(40, 1.0f);
 
+                EndMode3D();
+            EndVrStereoMode();
+        EndTextureMode();
+        
+        BeginDrawing();
+            ClearBackground(RAYWHITE);
             BeginShaderMode(distortion);
                 DrawTextureRec(target.texture, (Rectangle){ 0, 0, (float)target.texture.width,
                               (float)-target.texture.height }, (Vector2){ 0.0f, 0.0f }, WHITE);
             EndShaderMode();
-
             DrawFPS(10, 10);
-
         EndDrawing();
         //----------------------------------------------------------------------------------
     }
diff --git a/examples/core/core_window_letterbox.c b/examples/core/core_window_letterbox.c
index 2c3af6df..2933ca42 100644
--- a/examples/core/core_window_letterbox.c
+++ b/examples/core/core_window_letterbox.c
@@ -48,11 +48,11 @@ int main(void)
     Color colors[10] = { 0 };
     for (int i = 0; i < 10; i++) colors[i] = (Color){ GetRandomValue(100, 250), GetRandomValue(50, 150), GetRandomValue(10, 100), 255 };
 
-    SetTargetFPS(60);               // Set our game to run at 60 frames-per-second
+    SetTargetFPS(60);                   // Set our game to run at 60 frames-per-second
     //--------------------------------------------------------------------------------------
 
     // Main game loop
-    while (!WindowShouldClose())    // Detect window close button or ESC key
+    while (!WindowShouldClose())        // Detect window close button or ESC key
     {
         // Update
         //----------------------------------------------------------------------------------
@@ -79,37 +79,33 @@ int main(void)
 
         // Draw
         //----------------------------------------------------------------------------------
-        BeginDrawing();
-            ClearBackground(BLACK);
-
-            // Draw everything in the render texture, note this will not be rendered on screen, yet
-            BeginTextureMode(target);
-
-                ClearBackground(RAYWHITE);         // Clear render texture background color
-
-                for (int i = 0; i < 10; i++) DrawRectangle(0, (gameScreenHeight/10)*i, gameScreenWidth, gameScreenHeight/10, colors[i]);
+        // Draw everything in the render texture, note this will not be rendered on screen, yet
+        BeginTextureMode(target);
+            ClearBackground(RAYWHITE);  // Clear render texture background color
 
-                DrawText("If executed inside a window,\nyou can resize the window,\nand see the screen scaling!", 10, 25, 20, WHITE);
+            for (int i = 0; i < 10; i++) DrawRectangle(0, (gameScreenHeight/10)*i, gameScreenWidth, gameScreenHeight/10, colors[i]);
 
-                DrawText(TextFormat("Default Mouse: [%i , %i]", (int)mouse.x, (int)mouse.y), 350, 25, 20, GREEN);
-                DrawText(TextFormat("Virtual Mouse: [%i , %i]", (int)virtualMouse.x, (int)virtualMouse.y), 350, 55, 20, YELLOW);
-
-            EndTextureMode();
+            DrawText("If executed inside a window,\nyou can resize the window,\nand see the screen scaling!", 10, 25, 20, WHITE);
+            DrawText(TextFormat("Default Mouse: [%i , %i]", (int)mouse.x, (int)mouse.y), 350, 25, 20, GREEN);
+            DrawText(TextFormat("Virtual Mouse: [%i , %i]", (int)virtualMouse.x, (int)virtualMouse.y), 350, 55, 20, YELLOW);
+        EndTextureMode();
+        
+        BeginDrawing();
+            ClearBackground(BLACK);     // Clear screen background
 
-            // Draw RenderTexture2D to window, properly scaled
+            // Draw render texture to screen, properly scaled
             DrawTexturePro(target.texture, (Rectangle){ 0.0f, 0.0f, (float)target.texture.width, (float)-target.texture.height },
                            (Rectangle){ (GetScreenWidth() - ((float)gameScreenWidth*scale))*0.5f, (GetScreenHeight() - ((float)gameScreenHeight*scale))*0.5f,
                            (float)gameScreenWidth*scale, (float)gameScreenHeight*scale }, (Vector2){ 0, 0 }, 0.0f, WHITE);
-
         EndDrawing();
         //--------------------------------------------------------------------------------------
     }
 
     // De-Initialization
     //--------------------------------------------------------------------------------------
-    UnloadRenderTexture(target);    // Unload render texture
+    UnloadRenderTexture(target);        // Unload render texture
 
-    CloseWindow();                  // Close window and OpenGL context
+    CloseWindow();                      // Close window and OpenGL context
     //--------------------------------------------------------------------------------------
 
     return 0;