vlight command has been revised to provide more friendly syntax.
Command now accepts light index or name as first argument.
Added arguments -enable/-disable for managing enabled state.
Added argument -reset to reset light parameters to default values.
V3d_Viewer::SetDefaultLights() now sets names "headlight" and "ambient" to created lights.
Graphic3d_TypeOfLightSource enumeration values have been renamed to avoid shortcuts.
Draw::Atof(), applied corrections to avoid explicit new/delete calls.
Graphic3d_CLight::ToCastShadows() - added new property defining if light should cast shadows (ignored by Ray-Tracing).
OpenGl_ShaderManager::stdComputeLighting() now implements shadow mapping for directional lights.
OpenGl_ShaderManager::prepareGeomMainSrc() now handles copying of arrays.
OpenGl_Context::ShadowMapTexUnit() - added property defining an offset for shadow map texture units.
OpenGl_ShadowMap - added new class storing shadow map FBO with parameters.
OpenGl_View::prepareFrameBuffers() - added resizing of shadow map FBOs.
OpenGl_View::Redraw() - added section redrawing scene into shadow map FBOs via OpenGl_View::renderShadowMap() method.
vrenderparams - added new parameters -shadowMapResolution and -shadowMapBias.
Graphic3d_CLight is now defined as a class inheriting Standard_Transient,
so that it's fields now should be accessed through methods.
Graphic3d_CLight::IsEnabled() - new property allowing to disable light source everywhere.
Confusing alias OpenGl_Light has been removed.
Graphic3d_CLight::SetAttenuation() - the upper limit 1.0 of attenuation factors has been removed
since it contradicts to OpenGL specs and does not make sense.
Graphic3d_ZLayerSettings::Lights() - light sources list is now property of ZLayer.
When defined, it overrides light sources defined for View/Viewer.
New class Graphic3d_LightSet has been defined to define a set of light sources.
V3d_Light - removed obsolete interface for debug drawing lights sources.
V3d_Light is now an alias to Graphic3d_CLight.
V3d_TypeOfLight is now defined as a typedef to Graphic3d_TypeOfLightSource.