C++ (Cpp) lcMatrix44Identity Examples

Example #1

File: light.cpp Project: ldraw-linux/leocad

void lcLight::UpdatePosition(lcStep Step)
{
	mPosition = CalculateKey(mPositionKeys, Step);
	mTargetPosition = CalculateKey(mTargetPositionKeys, Step);
	mAmbientColor = CalculateKey(mAmbientColorKeys, Step);
	mDiffuseColor = CalculateKey(mDiffuseColorKeys, Step);
	mSpecularColor = CalculateKey(mSpecularColorKeys, Step);
	mAttenuation = CalculateKey(mAttenuationKeys, Step);
	mSpotCutoff = CalculateKey(mSpotCutoffKeys, Step);
	mSpotExponent = CalculateKey(mSpotExponentKeys, Step);

	if (IsPointLight())
	{
		mWorldLight = lcMatrix44Identity();
		mWorldLight.SetTranslation(-mPosition);
	}
	else
	{
		lcVector3 FrontVector(mTargetPosition - mPosition);
		lcVector3 UpVector(1, 1, 1);

		if (fabs(FrontVector[0]) < fabs(FrontVector[1]))
		{
			if (fabs(FrontVector[0]) < fabs(FrontVector[2]))
				UpVector[0] = -(UpVector[1] * FrontVector[1] + UpVector[2] * FrontVector[2]);
			else
				UpVector[2] = -(UpVector[0] * FrontVector[0] + UpVector[1] * FrontVector[1]);
		}
		else
		{
			if (fabs(FrontVector[1]) < fabs(FrontVector[2]))
				UpVector[1] = -(UpVector[0] * FrontVector[0] + UpVector[2] * FrontVector[2]);
			else
				UpVector[2] = -(UpVector[0] * FrontVector[0] + UpVector[1] * FrontVector[1]);
		}

		mWorldLight = lcMatrix44LookAt(mPosition, mTargetPosition, UpVector);
	}
}

Example #2

File: pieceinf.cpp Project: ursfassler/leocad

	{
		lcMemFile PieceFile;

		foreach (const QString& Line, MeshLines)
		{
			QByteArray Buffer = Line.toLatin1();
			PieceFile.WriteBuffer(Buffer.constData(), Buffer.size());
			PieceFile.WriteBuffer("\r\n", 2);
		}

		lcLibraryMeshData MeshData;
		lcArray<lcLibraryTextureMap> TextureStack;
		PieceFile.Seek(0, SEEK_SET);

		const char* OldLocale = setlocale(LC_NUMERIC, "C");
		bool Ret = lcGetPiecesLibrary()->ReadMeshData(PieceFile, lcMatrix44Identity(), 16, TextureStack, MeshData, LC_MESHDATA_SHARED);
		setlocale(LC_NUMERIC, OldLocale);

		if (Ret)
			lcGetPiecesLibrary()->CreateMesh(this, MeshData);
	}
}

bool PieceInfo::IncludesModel(const lcModel* Model) const
{
	if (mFlags & LC_PIECE_MODEL)
	{
		if (mModel == Model)
			return true;

		return mModel->IncludesModel(Model);