Update shaders.md

shaders.md

@@ -34,3 +34,27 @@ For more details, you can check the following folders and files:
 
 - **Packages/HISPlayerSDK/HisPlayer/Resources/RenderTextures/**
   - **HISPlayerDefaultRenderTexture.renderTexture** - This file is a custom RenderTexture to be used with the **HISPlayerDefaultMaterialRenderTexture.mat**.
+
+## HISPlayer 360 Shader for Linear Color Space
+If you are using **HISPlayer SDK version 3.4.0** and above, you will find **HISPlayer360Shader.shader** in *Packages/com.hisplayer.hisplayersdk/HISPlayer/Scripts/Shaders/*.
+<p align="center">
+  <img width="70%" alt="image" src="https://github.com/HISPlayer/UnityAndroid-SDK/assets/32887298/e95a25a0-82ca-4c7b-b27b-e5ea3a84ae84">
+</p>
+
+When building 360 application, you might use different shaders such as the Unity Skybox/Panoramic shader.
+
+If you use Linear Color Space, please change the default shader to HISPlayer360Shader which will improve the video rendering quality by following these steps : 
+* Open your 360 material, for example: Assets/HISPlayerOculusSample/Resources/RenderTextures/Materials/HISPlayer_360_Material.mat
+<p align="center">
+  <img width="70%" alt="image" src="https://github.com/HISPlayer/UnityAndroid-SDK/assets/32887298/2e32d3c3-86b9-4bc2-829a-e1750a8524ba">
+</p>
+
+* In the Inspector window, change Shader to HISPlayer360Shader
+<p align="center">
+  <img width="60%" alt="image" src="https://github.com/HISPlayer/UnityAndroid-SDK/assets/32887298/a981eb80-d2e6-4c99-8ba6-201d4ca615a9">
+</p>
+
+* Make sure you have the following setting of the material:
+<p align="center">
+  <img width="60%" alt="image" src="https://github.com/HISPlayer/UnityAndroid-SDK/assets/32887298/5ba12394-cc6a-4846-b7fc-4a682669dd66">
+</p>