LightDirection.3CgFX

Langue: en

Version: Cg Toolkit 3.0 (ubuntu - 24/10/10)

Section: 3 (Bibliothèques de fonctions)

Sommaire

NAME

LightDirection - 3D API light direction

USAGE

LightDirection[i] = float4(x, y, z, w)

VALID ENUMERANTS

x, y, z, w:

DESCRIPTION

Specify the lights direction. See the GL_SPOT_DIRECTION description on the OpenGL glLight manual page for details. See the Direction member of the D3DLIGHT9 argument to IDirect3DDevice9::SetLight method.

The standard reset callback sets the LightDirection[i] state to float4(0, 0, -1, 1).

OPENGL FUNCTIONALITY REQUIREMENTS

OpenGL 1.0

DIRECT3D FUNCTIONALITY REQUIREMENTS

DirectX 9

SEE ALSO

LightAmbient, LightAttenuation0, LightAttenuation1, LightAttenuation2, LightConstantAttenuation, LightDiffuse, LightEnable, LightFalloff, LightLinearAttenuation, LightModelAmbient, LightModelColorControl, LightModelLocalViewerEnable, LightModelTwoSideEnable, LightPhi, LightPosition, LightQuadraticAttenuation, LightRange, LightSpecular, LightSpotCutoff, LightSpotDirection, LightSpotExponent, LightTheta, LightType, LightingEnable