---
title: "Parameters"
url: "https://help.maxon.net/c4d/en-us/Content/html/GVMATERIAL-ID_GVPORTS.html"
section_path: "XPresso > XPresso Nodes > Iterator (Group) > Material Operator > Parameters"
element_id: "GVMATERIAL"
group_id: "ID_GVPORTS"
description: "This port takes an integer value which defines where the search should begin. A value of 0 means the search will begin with the first material in the …"
---

## Parameters

### First Material

Parameter ID: `GV_MATERIAL_INPUT_START` · Range: [-2147483648..2147483647]

This port takes an integer value which defines where the search should begin. A value of 0 means the search will begin with the first material in the **Material Manager** onwards. A value of **1** means the search will skip the first material and begin with the second material instead, and so on.

### Maximum Materials

Parameter ID: `GV_MATERIAL_INPUT_COUNT` · Range: [-2147483648..2147483647]

This port defines the maximum number of materials that the node will output. A value of 0 means the node will output all the materials that match the search criteria.

### On

Parameter ID: `GV_MATERIAL_OPERATOR_ON`

The On input port takes a Boole value that enables (True) or disables (False) the node. The node is enabled automatically if you do not add this port.

### Material

Parameter ID: `GV_MATERIAL_OUTPUT_MATERIAL`

The materials found.

### Count

Parameter ID: `GV_MATERIAL_OUTPUT_COUNT` · Range: [-2147483648..2147483647]

The total number of tags found. This value depends not only on the search criteria but also on the value of the Maximum Materials port. (The Maximum Materials value can limit the number of materials the node outputs, even if there are further materials of the desired type).