Updated README.rst and added IBL layers.png for Vulkan and OpenGLES.

examples/OpenGLES/ImageBasedLighting/README.rst

@@ -8,10 +8,10 @@ This example demonstrates Physically Based Rendering (PBR) using Image Based Lig
  
 Description
 -----------
-The example has two scenes:
+This example has two scenes using Metallic-Roughness PBR workflow. It features two scenes, a GLTF model rederered  with  albedo, metallic roughness and emissive map, and a collection of spheres showcasing different metallic and non metallic non-texture values.
+The examples uses a Diffuse map pre-computed offline from the environment map, using the lambert diffuse BRDF, and two specular maps (also calculated offline): A Pre-Filtered Environment map for different roughness values, and an Environment BRDF including the rest of the equation.
 
-* Helmet, showcasing a model with multiple material properties.
-* Spheres, showcasing lighting and shading for different metallicity and roughness values using Metallic-Roughness PBR workflow.
+.. figure:: ./IBL_layers.png
 
 APIs
 ----

examples/Vulkan/ImageBasedLighting/README.rst

@@ -4,14 +4,14 @@ ImageBasedLighting
 
 .. figure:: ./ImageBasedLighting.png
 
-This example demonstrates Physically Based Rendering (PBR) using Image Based Lighting (IBL).
- 
+This example demonstrates Physically Based Rendering (PBR) with Image Based Lighting (IBL). 
+
 Description
 -----------
-The example has two scenes:
+This example has two scenes using Metallic-Roughness PBR workflow. It features two scenes, a GLTF model rederered  with  albedo, metallic roughness and emissive map, and a collection of spheres showcasing different metallic and non metallic non-texture values.
+The examples uses a Diffuse map pre-computed offline from the environment map, using the lambert diffuse BRDF, and two specular maps (also calculated offline): A Pre-Filtered Environment map for different roughness values, and an Environment BRDF including the rest of the equation.
 
-* Helmet, showcasing a model with multiple material properties.
-* Spheres, showcasing lighting and shading for different metallicity and roughness values using Metallic-Roughness PBR workflow.
+.. figure:: ./IBL_layers.png
 
 APIs
 ----
@@ -22,4 +22,4 @@ Controls
 --------
 - Quit- Close the application
 - Left/ Right to change the scene
-- Action1 to pause.
+- Action1 to pause.
\ No newline at end of file