IBL start.

.vscode/launch.json

@@ -0,0 +1,16 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "(Windows) Attach",
+            "type": "cppvsdbg",
+            "request": "attach",
+        }
+    ],
+    "env": {
+        "VCPKG_ROOT": "/Users/fdubouchet/Documents/GitHub/vcpkg"
+    }
+}

asset/json/image_based_lighting.json

@@ -0,0 +1,200 @@
+{
+  "name": "LastMonsterStanding",
+  "default_texture_name": "albedo",
+  "textures": [
+    {
+      "name": "albedo",
+      "size": {
+        "x": -1,
+        "y": -1
+      },
+      "pixel_element_size": { "value": "BYTE" },
+      "pixel_structure": { "value": "RGB" }
+    },
+    {
+      "name": "skybox",
+      "cubemap": "true",
+      "pixel_element_size": { "value": "FLOAT" },
+      "pixel_structure": { "value": "RGB" },
+      "file_name": "asset/cubemap/hamarikyu.hdr"
+    },
+    {
+      "name": "apple_texture",
+      "cubemap": false,
+      "pixel_element_size": { "value": "BYTE" },
+      "pixel_structure": { "value": "RGB" },
+      "file_name": "asset/apple/color.jpg"
+    },
+    {
+      "name": "zbuffer",
+      "cubemap": "false",
+      "size": {
+        "x": "-1",
+        "y": "-1"
+      },
+      "pixel_element_size": { "value": "BYTE" },
+      "pixel_structure": { "value": "RGB" }
+    }
+  ],
+  "materials": [
+    {
+      "name": "ImageBasedLightingMaterial",
+      "program_name": "ImageBasedLightingProgram",
+      "texture_names": [ "apple_texture", "skybox" ],
+      "inner_names": [ "Color", "IrradianceMap" ]
+    },
+    {
+      "name": "CubeMapMaterial",
+      "program_name": "CubeMapProgram",
+      "texture_names": [ "skybox" ],
+      "inner_names": [ "Skybox" ]
+    }
+  ],
+  "programs": [
+    {
+      "name": "CubeMapProgram",
+      "input_texture_names": [ "skybox" ],
+      "output_texture_names": [ "albedo" ],
+      "input_scene_type": { "value": "CUBE" },
+      "shader": "cubemap",
+      "parameters": [
+        {
+          "name": "projection",
+          "uniform_enum": "PROJECTION_MAT4"
+        },
+        {
+          "name": "view",
+          "uniform_enum": "VIEW_MAT4"
+        },
+        {
+          "name": "model",
+          "uniform_enum": "MODEL_MAT4"
+        }
+      ]
+    },
+    {
+      "name": "ImageBasedLightingProgram",
+      "input_texture_names": [ "apple_texture", "skybox" ],
+      "output_texture_names": [ "albedo" ],
+      "input_scene_type": { "value": "SCENE" },
+      "input_scene_root_name": "root",
+      "shader": "image_based_lighting",
+      "parameters": [
+        {
+          "name": "projection",
+          "uniform_enum": "PROJECTION_MAT4"
+        },
+        {
+          "name": "view",
+          "uniform_enum": "VIEW_MAT4"
+        },
+        {
+          "name": "model",
+          "uniform_enum": "MODEL_MAT4"
+        }
+      ]
+    }
+  ],
+  "scene_tree": {
+    "default_camera_name": "camera",
+    "default_root_name": "root",
+    "scene_matrices": [
+      {
+        "name": "root",
+        "matrix": {
+          "m11": 1.0,
+          "m22": 1.0,
+          "m33": 1.0,
+          "m44": 1.0
+        }
+      },
+      {
+        "name": "mesh_holder",
+        "parent": "root",
+        "quaternion": {
+          "x": "0.0",
+          "y": "0.1979232",
+          "z": "0.1484424",
+          "w": "0.9689124"
+        }
+      },
+      {
+        "name": "skybox_holder",
+        "parent": "root",
+        "quaternion": {
+          "x": "0",
+          "y": "0.0499792",
+          "z": "0.0",
+          "w": "0.9987503"
+        }
+      }
+    ],
+    "scene_static_meshes": [
+      {
+        "name": "InitCleanBuffer",
+        "clean_buffer": {
+          "values": [ "CLEAR_COLOR", "CLEAR_DEPTH" ]
+        }
+      },
+      {
+        "name": "CubeMapMesh",
+        "parent": "skybox_holder",
+        "material_name": "CubeMapMaterial",
+        "mesh_enum": "CUBE"
+      },
+      {
+        "name": "ClearDepthBuffer",
+        "clean_buffer": {
+          "values": [ "CLEAR_DEPTH" ]
+        }
+      },
+      {
+        "name": "AppleMesh",
+        "parent": "mesh_holder",
+        "file_name": "apple.obj",
+        "material_name": "ImageBasedLightingMaterial"
+      }
+    ],
+    "scene_cameras": [
+      {
+        "name": "camera",
+        "parent": "camera_holder",
+        "fov_degrees": 65.0,
+        "near_clip": 0.01,
+        "far_clip": 1000.0,
+        "position": {
+          "x": 0,
+          "y": 0,
+          "z": -2
+        },
+        "target": {
+          "x": 0,
+          "y": 0,
+          "z": 1
+        },
+        "up": {
+          "x": 0,
+          "y": 1,
+          "z": 0
+        }
+      }
+    ],
+    "scene_lights": [
+      {
+        "name": "sun",
+        "parent": "root",
+        "light_type": "DIRECTIONAL",
+        "position": {
+          "x": "-1.0",
+          "y": "1.0",
+          "z": "1.0"
+        },
+        "color": {
+          "x": "1.0",
+          "y": "1.0",
+          "z": "1.0"
+        }
+      }
+    ]
+  }
+}

asset/json/scene_simple.json

@@ -122,16 +122,6 @@
           "m44": "1"
         }
       },
-      {
-        "name": "root_skybox",
-        "parent": "root",
-        "matrix": {
-          "m11": "1",
-          "m22": "1",
-          "m33": "1",
-          "m44": "1"
-        }
-      },
       {
         "name": "mesh_holder",
         "parent": "root",
@@ -144,7 +134,7 @@
       },
       {
         "name": "skybox_holder",
-        "parent": "root_skybox",
+        "parent": "root",
         "quaternion": {
           "x": "0",
           "y": "0.0499792",

asset/shader/opengl/CMakeLists.txt

@@ -20,6 +20,8 @@ add_custom_target(AssetShaderOpenGL
     gaussian_blur.vert
     high_dynamic_range.frag
     high_dynamic_range.vert
+    image_based_lighting.frag
+    image_based_lighting.vert
     integrate_brdf.frag
     integrate_brdf.vert
     irradiance_cubemap.frag