<p>In urban planning, ArcGIS is used to design and visualize projects, it’s a series of solutions created by Environmental Systems Research Institute (ESRI). It contents set of applications designed for achieving of Geographic Information System (GIS) tasks. The most important of these tasks are the lighting effects, specifically the shadow effect that caused by lighting in outdoor scenes. However, this effect of shadow volume suffers from artifacts, aliasing and incorrect boundaries. This paper presents a technique to render realistic soft shadow volume in real-time of the visualize projects in ArcGIS system. The proposed technique adopts deferred rendering using fragment shader to generate soft shadow volume in efficiency. This technique focused on rendering of multiple penumbra wedges to create soft shadows volume regions high quality. The contribution of this research is based on downsampling of the light and non-linear filtering for enhancement the boundaries of shadow volume through edge-preserving and antialiasing. In addition, it appears effect of ambient occlusion using deferred rendering of lighting. This technique allows obtaining soft marvelous shadow volume, having a high realistic. Thus, it is suitable to improve lighting effects of GIS system.</p>