private void InitMaterials()
{
_defaultMaterial = idE.DeclManager.FindMaterial("_default", false);
if(_defaultMaterial == null)
{
idConsole.FatalError("_default material not found");
}
idE.DeclManager.FindMaterial("_default", false);
// needed by R_DeriveLightData
idE.DeclManager.FindMaterial("lights/defaultPointLight");
idE.DeclManager.FindMaterial("lights/defaultProjectedLight");
}