LightSpotCutoff
Keywords: LightSpotCutoff, NVIDIA, NVIDIA Cg Toolkit, Cg Toolkit, Shader, Shader Programming, GPU Shader Programming, GPU Program

> ## Name

> LightSpotCutoff - 3D API light spot cutoff

> ## Usage

> LightSpotCutoff[i] = float(cutoff)

> ## Valid Enumerants

> cutoff: floating point value

> ## Description

> Specify the lights maximum spread angle. See the GL_SPOT_CUTOFF description on the OpenGL glLight manual page for details. See the Falloff member of the D3DLIGHT9 argument to IDirect3DDevice9::SetLight method.

> The standard reset callback sets the LightSpotCutoff[i] state to float(180).

> ## Opengl Functionality Requirements

> OpenGL 1.0

> ## Direct3D Functionality Requirements

> DirectX 9

> ## See Also

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