diff --git a/content/How_To/material/Physically_Based_Rendering.md b/content/How_To/material/Physically_Based_Rendering.md
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--- a/content/How_To/material/Physically_Based_Rendering.md
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 ## Introduction
 
-After following the [standard material tutorial](/babylon101/materials) and also excelling in [unleashing its power](https://www.eternalcoding.com/?p=303), it is a good time to go further and look at another emerging kind of materials called **PBR Materials** standing for **Physically Based Rendering Materials**.
+After following the [standard material tutorial](/babylon101/materials) and also excelling in [unleashing its power](https://www.eternalcoding.com/babylon-js-unleash-the-standardmaterial-for-your-babylon-js-game/), it is a good time to go further and look at another emerging kind of materials called **PBR Materials** standing for **Physically Based Rendering Materials**.
 
 PBR rendering techniques aim to simulate **real life lighting**.