DGLE_RESULT DGLE_API CFixedFunctionPipeline::GetSpotLightConfiguration(uint uiIdx, TPoint3 &stPosition, TVector3 &stDirection, float &fRange, float &fSpotAngle)
{
E_LIGHT_TYPE type;
GetLightType(uiIdx, type);
if (uiIdx >= (uint)_iMaxLights || type != LT_SPOT)
return E_INVALIDARG;
GLfloat pos[4];
glGetLightfv(GL_LIGHT0 + uiIdx, GL_POSITION, pos);
glGetLightfv(GL_LIGHT0 + uiIdx, GL_SPOT_DIRECTION, stDirection);
// May work wrong when light position was set or changed directly via OpenGL outside this class.
const TMatrix4x4 inv_mview = MatrixInverse(_pLights[uiIdx].mview);
stPosition = inv_mview.ApplyToPoint(TPoint3(pos[0], pos[1], pos[2]));
stDirection = inv_mview.ApplyToVector(stDirection);
glGetLightfv(GL_LIGHT0 + uiIdx, GL_SPOT_CUTOFF, &fSpotAngle);
fSpotAngle *= 2.f;
glGetLightfv(GL_LIGHT0 + uiIdx, GL_LINEAR_ATTENUATION, &fRange);
fRange = _c_fAttenuationFactor / fRange;
return S_OK;
}
LightSquare::LightSquare() {
LightDot::LightDot(); lightKind = LIGHT_SQUARE;
dir = TVector3( 0, -1, 0 );
location = TPoint3( 0, 500, 0 );
axis1 = TVector3( 1, 0, 0 );
axis2 = TVector3( 0, 0, 1 );
dotGrid = NULL;
}
DGLE_RESULT DGLE_API CFixedFunctionPipeline::GetPointLightConfiguration(uint uiIdx, TPoint3 &stPosition, float &fRange)
{
E_LIGHT_TYPE type;
GetLightType(uiIdx, type);
if (uiIdx >= (uint)_iMaxLights || type != LT_POINT)
return E_INVALIDARG;
GLfloat pos[4];
glGetLightfv(GL_LIGHT0 + uiIdx, GL_POSITION, pos);
// May work wrong when light position was set or changed directly via OpenGL outside this class.
stPosition = MatrixInverse(_pLights[uiIdx].mview).ApplyToPoint(TPoint3(pos[0], pos[1], pos[2]));
glGetLightfv(GL_LIGHT0 + uiIdx, GL_LINEAR_ATTENUATION, &fRange);
fRange = _c_fAttenuationFactor / fRange;
return S_OK;
}
CLight::CLight(uint uiInstIdx):
CInstancedObj(uiInstIdx), _bEnabled(true), _eType(LT_DIRECTIONAL),
_stMainCol(ColorWhite()), _stPos(TPoint3()), _stDir(TVector3(0.f, 0.f, 1.f)),
_fRange(100.f), _fIntensity(1.f), _fAngle(90.f)
{}
