---
title: "Sampler Info"
canonical: "https://documentation.chaos.com/space/VMAYA/111739744/Sampler%20Info"
format: markdown
---
This page gives information about the Sampler Info Render Element.

## <span style="color: #000000">**Overview**</span>

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##  **Attributes**

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## **Render Samples**

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The following images are examples of passes generated by the vrayRE_Sampler_Info.

### **World Space**

These renders use the World space coordinate system.

 

 

### **Object Space**

These renders use the Object space coordinate system.

 

 

### **Camera Space**

These renders use the Camera space coordinate system.

 

> Macro (inline-media-image)

*Point* **Type**


 

 

### **Relative Space**

These renders use the Relative space coordinate system.

 

> Macro (inline-media-image)

  
*Point* **Type**

 

 

 

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## **Supported UVW Coordinate Types**

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The table below provides some details on the supported UVW coordinate types within the Sampler Info Render Element. Pass types such as** Normal vector**, **Normal vector with bump mapping**, **World coordinates,** and **Point** can be used to relight a scene at a composite stage. While **UVW coordinates** and **Object coordinates** can be used to re-texture items in a scene while compositing. The **Reflection vector** type can be used to adjust or remap reflections, similarly the **Refraction vector** can do the same in a composite for refractions. Some types such as the **Forward occlusion** and **Backwards occlusion** can be used together for denoising and/or post-process motion blur. The** Integer ID from node user attribute** can be used as an extended Object ID.  



| **Pass Type** | **Coord. System** | **UVW Mode** | **Output** | **V-Ray CPU** | **V-Ray GPU** |
| --- | --- | --- | --- | --- | --- |
| Point | World |  |  | <span style="color: #333333">✓</span> | <span style="color: #333333">✓</span> |
| Point | Object |  |  | <span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Point | Camera |  |  | <span style="color: #333333">✓</span> | <span style="color: #333333">✓</span> |
| Point | Relative |  |  | <span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Normal vector | World |  | Vector (signed) | <span style="color: #333333">✓</span> | <span style="color: #333333">✓</span> |
| Normal vector | World |  | Color (unsigned) | <span style="color: #808080">  </span><span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Normal vector | Object |  | Vector (signed) | <span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Normal vector | Object |  | Color (unsigned) | <span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Normal vector | Camera |  | Vector (signed) | <span style="color: #333333">✓</span> | <span style="color: #333333">✓</span> |
| Normal vector | Camera |  | Color (unsigned) | <span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Normal vector | Relative |  | Vector (signed) | <span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Normal vector | Relative |  | Color (unsigned) | <span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Reflection vector | World |  | Vector (signed) | <span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Reflection vector | World |  | Color (unsigned) | <span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Reflection vector | Object |  | Vector (signed) | <span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Reflection vector | Object |  | Color (unsigned) | <span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Reflection vector | Camera |  | Vector (signed) | <span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Reflection vector | Camera |  | Color (unsigned) | <span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Reflection vector | Relative |  | Vector (signed) | <span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Reflection vector | Relative |  | Color (unsigned) | <span style="color: #333333">✓</span> | <span style="color: #999999">–</span><span style="color: #808080"> </span> |
| Refraction vector | World |  | Vector (signed) | <span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Refraction vector | World |  | Color (unsigned) | <span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Refraction vector | Object |  | Vector (signed) | <span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Refraction vector | Object |  | Color (unsigned) | <span style="color: #333333">✓</span><span style="color: #808080"> </span> | <span style="color: #999999">–</span> |
| Refraction vector | Camera |  | Vector (signed) | <span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Refraction vector | Camera |  | Color (unsigned) | <span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Refraction vector | Relative |  | Vector (signed) | <span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Refraction vector | Relative |  | Color (unsigned) | <span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| UVW coordinates |  | Normal |  | <span style="color: #333333">✓</span> | <span style="color: #333333">✓</span> |
| UVW coordinates |  | Clamp |  | <span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| UVW coordinates |  | Tile |  | <span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Normal vector with bump mapping | World |  | Vector (signed) | <span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Normal vector with bump mapping | World |  | Color (unsigned) | <span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Normal vector with bump mapping | Object |  | Vector (signed) | <span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Normal vector with bump mapping | Object |  | Color (unsigned) | <span style="color: #999999"> </span><span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Normal vector with bump mapping | Camera |  | Vector (signed) | <span style="color: #999999"> </span><span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Normal vector with bump mapping | Camera |  | Color (unsigned) | <span style="color: #999999"> </span><span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Normal vector with bump mapping | Relative |  | Vector (signed) | <span style="color: #999999"> </span><span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Normal vector with bump mapping | Relative |  | Color (unsigned) | <span style="color: #999999"> </span><span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Backwards occlusion |  |  |  | <span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Forward occlusion |  |  |  | <span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Integer ID from node user attribute |  |  |  | <span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| Float number from node user attribute |  |  |  | <span style="color: #333333">✓</span> | <span style="color: #999999">–</span> |
| <span style="color: #172b4d">Face index in mesh</span> |  |  | Vector (signed) | ✓ | <span style="color: #999999">–</span> |
| <span style="color: #172b4d">Barycentric coordinates from face</span> |  |  | <span style="color: #172b4d">Vector (signed)</span> | ✓ | ✓ |
| <span style="color: #172b4d">Barycentric coordinates from face</span> |  |  | <span style="color: #172b4d">Color (unsigned)</span> | ✓ | <span style="color: #999999">–</span> |
| <span style="color: #172b4d">Tangent vector in object space</span> |  |  | <span style="color: #172b4d">Vector (signed)</span> | ✓ | ✓ |
| <span style="color: #172b4d">Tangent vector in object space</span> |  |  | <span style="color: #172b4d">Color (unsigned)</span> | ✓ | <span style="color: #999999">–</span> |
| <span style="color: #172b4d">Bitangent vector in object space</span> |  |  | <span style="color: #172b4d">Vector (signed)</span> | ✓ | ✓ |
| <span style="color: #172b4d">Bitangent vector in object space</span> |  |  | <span style="color: #172b4d">Color (unsigned)</span> | ✓ | <span style="color: #999999">–</span> |


## **Notes**

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- W<span style="color: #172b4d">hen included in a multichannel EXR, Sampler Info render element is always saved with lossless compression.</span>