Readme update

README.md

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 Kepler is a open source deferred, pbr based render engine written in Javascript.
 Current features are:
 
 
+#### Surface Normal
+
+![Surface Normal](/images/kepler/normal.png)
+
+#### Positions
+
+![Positions](/images/kepler/position.png)
+
+#### Diffuse Maps
+
+![Diffuse Maps](/images/kepler/diffuse.png)
+
+---
+
+### Screen Space Ambient Occlusion (SSAO)
+
+![SSAO](/images/kepler/ssao.png)
+
+---
+
+In the final render pass, all G-buffer data is combined and PBR lighting calculations are performed in parallel on the GPU, producing a photorealistic real-time image.
+
+Real-time PBR enables interactive applications such as games and simulations to deliver high-fidelity visuals by leveraging modern GPU computational power.
+
+![PBR lights without Diffuse](/images/kepler/lightOnly.png)
+
+---
+
+## **Rendering Multiple Lights**
+
+Deferred lighting efficiently renders many lights by processing geometry once into G-buffers, then computing lighting per light in screen space. This avoids redundant geometry rendering and limits lighting calculations to affected screen regions, significantly improving performance.
+
+![Multiple Lights 1](/images/kepler/4.png) ![Multiple Lights 2](/images/kepler/3.png)
+
+---
+
+
+## **PBR Roughness Parameter**
+
+**Roughness** controls the microsurface texture of a material, affecting reflection sharpness. It governs the spread and intensity of specular highlights, crucial for realistic PBR materials.
+
+![PBR Roughness](/images/kepler/roughness_blue.png)
+
+---
+
 
 # Load models:
 ```javascript