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title: "Camera Tab"
canonical: "https://documentation.chaos.com/space/VRAYHOUDINI/113280965/Camera%20Tab"
format: markdown
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This page provides information on the Camera tab of the V-Ray Renderer parameters.
## **Overview**
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The camera options control the way the scene geometry is projected onto the image, therefore changing how the render looks. These attributes override the following:
- The type of camera used for rendering
- Enable Depth of Field
- Enable motion blur effects for the standard cameras in Houdini
> ⚠️ If you use the [VRayPhysicalCamera](https://docs-chaos.atlassian.net/wiki/spaces/VRAYHOUDINI/pages/113281488) in your scene, the parameters in this section of the Render Settings are ignored, except for the motion blur parameters: prepass samples and geometry samples.
> ⚠️ When CUDA/RTX is chosen as a rendering engine, all unsupported options are disabled from the parameters.
## **Auto Corrections**
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## **Camera**
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### **Example: Renders of Camera Types**
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The images below show the difference between the different camera types used in rendering:
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### **Example: Camera Types Explained**
This example shows how the rays for different camera types are generated. The red arcs in the diagrams correspond to the FOV angles.
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## **Depth of Field**
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## **Motion Blur Parameters**
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> ℹ️ When rendering Alembic file sequences (e.g. file.$F4.abc), V-Ray expects a velocity attribute for creating the Motion Blur effect. To generate the "v" attribute prior to export, use a Trail SOP. The "Geometry Velocity Blur" option has to be set to "Velocity Blur" under the Render → Sampling tab of the Geometry node.
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> ℹ️ This limitation is not present when rendering a sequence stored in a single Alembic file (e.g. file.abc). V-Ray is able to interpolate between the neighboring geometry samples, provided that the topology/point count of the contained geometry does not change.
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### **Example: Motion Blur**
This example demonstrates the various parameters for motion blur.
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### **Example: Geometry Samples**
The following images demonstrate the Geometry samples parameter using the scene from the [Duration example](#DurationExample). In all the following renderings, the **Duration (frames)** parameter* *is set to *2*. All other parameters are the same as for the previous images. The higher the value for **Geometry Samples**, the more accurate the estimated object motion. However, an excessive increase in this value results in long rendering times.
The geometry samples parameter is useful when creating motion blur for complex motions, for example, fast-rotating objects. Here is an example with an accelerating airplane propeller with a blue and yellow pattern:
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### **Example: Duration**
The following scene consists of a three-frame animation of a moving cube. The cube's position on each frame:
Frame 0: Left side
Frame 1: Near box
Frame 2: Right side
The following images show frame 1 rendered with different duration values:
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### **Example: Interval Center**
This example demonstrates the effect of the Interval Center parameter. The scene is a moving sphere. Here are three sequential frames without motion blur:
Here is the middle frame, rendered with motion blur and three different values for the interval center; the motion blur duration is one frame.
Interval Center = 0.0; the middle of the motion blur interval matches the sphere position at the second frame
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Interval Center = 0.5; the middle of the interval is halfway between the second and the third frame
Interval Center = 1.0; the middle of the interval matches the sphere position at the third frame
## **Stereoscopic Camera**
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