---
name: "SoLightModel"
section: "3iv"
platform: "linux"
package: "inventor-doc"
version: "2.1.6+ds-2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/SoLightModel/3iv"
---

# SoLightModel(3iv)

node that defines the lighting model to use when rendering

## NAME

SoLightModel — node that defines the lighting model to use when rendering

## INHERITS FROM

SoBase \> SoFieldContainer \> SoNode \> SoLightModel

## SYNOPSIS

**#include \<Inventor/nodes/SoLightModel.h\>**

**enum Model {** **SoLightModel::BASE\_COLOR**	Use only the base (diffuse) object color\
 **SoLightModel::PHONG**	Use Phong lighting model\
 **}**

Fields from class SoLightModel:

**SoSFEnum**	**model**

Methods from class SoLightModel:

	**SoLightModel()**\
 **static SoType**	**getClassTypeId()**

Methods from class SoNode:

**void**	**setOverride(SbBool state)**\
 **SbBool**	**isOverride() const**\
 **SoNode \***	**copy(SbBool copyConnections = FALSE) const**\
 **virtual SbBool**	**affectsState() const**\
 **static SoNode \***	**getByName(const SbName &name)**\
 **static int**	**getByName(const SbName &name, SoNodeList &list)**

Methods from class SoFieldContainer:

**void**	**setToDefaults()**\
 **SbBool**	**hasDefaultValues() const**\
 **SbBool**	**fieldsAreEqual(const SoFieldContainer \*fc) const**\
 **void**	**copyFieldValues(const SoFieldContainer \*fc, SbBool copyConnections = FALSE)**\
 **SbBool**	**set(const char \*fieldDataString)**\
 **void**	**get(SbString &fieldDataString)**\
 **virtual int**	**getFields(SoFieldList &resultList) const**\
 **virtual SoField \***	**getField(const SbName &fieldName) const**\
 **SbBool**	**getFieldName(const SoField \*field, SbName &fieldName) const**\
 **SbBool**	**isNotifyEnabled() const**\
 **SbBool**	**enableNotify(SbBool flag)**

Methods from class SoBase:

**void**	**ref()**\
 **void**	**unref() const**\
 **void**	**unrefNoDelete() const**\
 **void**	**touch()**\
 **virtual SoType**	**getTypeId() const**\
 **SbBool**	**isOfType(SoType type) const**\
 **virtual void**	**setName(const SbName &name)**\
 **virtual SbName**	**getName() const**

## DESCRIPTION

**This node defines the lighting model to be used when rendering subsequent shapes. The lighting model is specified in the model** field. When the default model (Phong lighting) is used, light sources are required in a scene for objects to be easily visible.

## FIELDS

**SoSFEnum**	**model**\
 Lighting model to use

## METHODS

	**SoLightModel()**\
 Creates a light model node with default settings.

**static SoType**	**getClassTypeId()**\
 Returns type identifier for this class.

## ACTION BEHAVIOR

**SoGLRenderAction, SoCallbackAction**\
 Sets the current lighting model in the state.

## FILE FORMAT/DEFAULTS

```
LightModel {
model	PHONG
}
```

## SEE ALSO

**SoBaseColor, SoEnvironment, SoLight, SoMaterial**