---
title: "Multi-Pass"
url: "https://help.maxon.net/c4d/en-us/Content/html/VPHAIRTRACE-HAIR_RENDER_GROUP_MULTIPASS.html"
section_path: "Simulate Menu > The Simulation System > Hair > Render Preferences > Remaining Settings"
element_id: "VPHAIRTRACE"
group_id: "HAIR_RENDER_GROUP_MULTIPASS"
description: "Individual settings such as specular and color, etc. can be selected in the Multi-Pass menu to be rendered as separate passes."
---

## Multi-Pass

Individual settings such as specular and color, etc. can be selected in the **Multi-Pass** menu to be rendered as separate passes.

The **Post Effects** channel in the Cinema 4D **Render Settings** menu must be activated as well (**Multi-Pass** button)!

Note that **Hair** Multi-Passes only use the Sampling Mode Pixel (**Render** tab), which can lead to varying results in the RGB image.

### Image

Parameter ID: `HAIR_RENDER_MP_RGB`

If this option is active, the hair will be included in the **normal** rendered image (an image without Multi-Pass, for which you have assigned a save path in the **Save** tab). Otherwise, hair will not be included.

### Depth

Parameter ID: `HAIR_RENDER_MP_DEPTH`

### Alpha

Parameter ID: `HAIR_RENDER_MP_ALPHA`

Use this setting to define if and how depth and alpha passes will be output for the rendered hair. The following options are available:

- None: No hair depth or alpha passes will be output.
- Standard: Both passes will be integrated into the Cinema 4D depth and alpha passes (**Alpha Channel** must be active in the **Save** menu of the Cinema 4D **Render Settings** menu).
- Separate: Each pass will be output separately.

### Split Back

Parameter ID: `HAIR_RENDER_MP_SPLIT_BACK`

As soon as this setting is activated, the individually adjustable effects will be separated according to **normal** and backlit (**Backlit Color** Hair material channel). For each active pass an additional pass will be made and labeled **Backlit**.

# Remaining Settings

The remaining settings can be combined to fulfill any wish an artist may have when rendering hair. All of them are basically self-explanatory, except for the following:

### Color

Parameter ID: `HAIR_RENDER_MP_COLOR`

### Specular

Parameter ID: `HAIR_RENDER_MP_SPECULAR`

### Secondary

Parameter ID: `HAIR_RENDER_MP_SECONDARY_SPECULAR`

### Received Shadows

Parameter ID: `HAIR_RENDER_MP_RECIEVE_SHADOW`

### Self-Shadows

Parameter ID: `HAIR_RENDER_MP_SELF_SHADOW`

### Diffuse

Parameter ID: `HAIR_RENDER_MP_DIFFUSE`

Diffuse: Diffuse lighting without specular lights.

### Illumination

Parameter ID: `HAIR_RENDER_MP_ILLUMINATION`

Illumination: The light intensity (brightness) of the hair based on all light sources.

![Image: 005384.jpg](https://help.maxon.net/c4d/en-us/Content/Resources/Images/005384.jpg)\
Various Hair multi-passes. A normal RGB image is shown at the bottom right.