git subrepo clone (merge) https://github.com/HarbourMasters/otrgui.git OTRGui

subrepo:
  subdir:   "OTRGui"
  merged:   "a6066a251"
upstream:
  origin:   "https://github.com/HarbourMasters/otrgui.git"
  branch:   "master"
  commit:   "a6066a251"
git-subrepo:
  version:  "0.4.1"
  origin:   "???"
  commit:   "???"

OTRGui/libs/raylib/examples/models/models_loading_gltf.c

@@ -0,0 +1,105 @@
+/*******************************************************************************************
+*
+*   raylib [models] example - Load models gltf
+*
+*   This example has been created using raylib 3.5 (www.raylib.com)
+*   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
+*
+*   NOTE: To export a model from Blender, make sure it is not posed, the vertices need to be
+*   in the same position as they would be in edit mode.
+*   Also make sure the scale parameter of your models is set to 0.0,
+*   scaling can be applied from the export menu.
+*
+*   Example contributed by Hristo Stamenov (@object71) and reviewed by Ramon Santamaria (@raysan5)
+*
+*   Copyright (c) 2021 Hristo Stamenov (@object71) and Ramon Santamaria (@raysan5)
+*
+********************************************************************************************/
+
+#include "raylib.h"
+
+#define MAX_GLTF_MODELS  8
+
+int main(void)
+{
+    // Initialization
+    //--------------------------------------------------------------------------------------
+    const int screenWidth = 800;
+    const int screenHeight = 450;
+
+    InitWindow(screenWidth, screenHeight, "raylib [models] example - model");
+
+    // Define the camera to look into our 3d world
+    Camera camera = { 0 };
+    camera.position = (Vector3){ 10.0f, 10.0f, 10.0f }; // Camera position
+    camera.target = (Vector3){ 0.0f, 0.0f, 0.0f };      // Camera looking at point
+    camera.up = (Vector3){ 0.0f, 1.0f, 0.0f };          // Camera up vector (rotation towards target)
+    camera.fovy = 45.0f;                                // Camera field-of-view Y
+    camera.projection = CAMERA_PERSPECTIVE;             // Camera mode type
+
+    // Load some models
+    Model model[MAX_GLTF_MODELS] = { 0 };
+    model[0] = LoadModel("resources/models/gltf/raylib_32x32.glb");
+    model[1] = LoadModel("resources/models/gltf/rigged_figure.glb");
+    model[2] = LoadModel("resources/models/gltf/GearboxAssy.glb");
+    model[3] = LoadModel("resources/models/gltf/BoxAnimated.glb");
+    model[4] = LoadModel("resources/models/gltf/AnimatedTriangle.gltf");
+    model[5] = LoadModel("resources/models/gltf/AnimatedMorphCube.glb");
+    model[6] = LoadModel("resources/models/gltf/vertex_colored_object.glb");
+    model[7] = LoadModel("resources/models/gltf/girl.glb");
+
+    int currentModel = 0;
+
+    Vector3 position = { 0.0f, 0.0f, 0.0f };    // Set model position
+
+    SetCameraMode(camera, CAMERA_FREE); // Set free camera mode
+
+    SetTargetFPS(60);                   // Set our game to run at 60 frames-per-second
+    //--------------------------------------------------------------------------------------
+
+    // Main game loop
+    while (!WindowShouldClose())        // Detect window close button or ESC key
+    {
+        // Update
+        //----------------------------------------------------------------------------------
+        UpdateCamera(&camera);          // Update our camera with inputs
+
+        if (IsKeyReleased(KEY_RIGHT))
+        {
+            currentModel++;
+            if (currentModel == MAX_GLTF_MODELS) currentModel = 0;
+        }
+
+        if (IsKeyReleased(KEY_LEFT))
+        {
+            currentModel--;
+            if (currentModel < 0) currentModel = MAX_GLTF_MODELS - 1;
+        }
+        //----------------------------------------------------------------------------------
+
+        // Draw
+        //----------------------------------------------------------------------------------
+        BeginDrawing();
+
+            ClearBackground(SKYBLUE);
+
+            BeginMode3D(camera);
+
+                DrawModel(model[currentModel], position, 1.0f, WHITE);
+                DrawGrid(10, 1.0f);         // Draw a grid
+
+            EndMode3D();
+
+        EndDrawing();
+        //----------------------------------------------------------------------------------
+    }
+
+    // De-Initialization
+    //--------------------------------------------------------------------------------------
+    for (int i = 0; i < MAX_GLTF_MODELS; i++) UnloadModel(model[i]);  // Unload models
+
+    CloseWindow();              // Close window and OpenGL context
+    //--------------------------------------------------------------------------------------
+
+    return 0;
+}