A rendering pipeline framework for photorealistic rendering of animated virtual objects into real scenes

摘要

In recent times, Animation and Graphics industry has grown up with rapid improvements but its development is considered slow because Computer Graphics Characters developed off screen consumes enormous amount of time, money and resources. With Photorealistic rendering special effects regarding computer graphics character/object like lighting, shadowing information can be dynamically created on screen. In Photorealistic Augmented Reality, direct or indirect view of elements of a real world are augmented through computer-generated sensory inputs in a way closely resembling a photograph. This work proposes a generic rendering pipeline framework with several stages for seamlessly integrating moving virtual objects into dynamic real time environment while the earlier work was in the track of photorealistic rendering of static virtual objects. The applied Graphics Pipeline comprises of several stages with each stage contributing its part: Shadowing, Illumination, Environment mapping, Scene Composition, and Camera effects summing up to the desired photorealistic effect. Blender and 3DS Max Software is used for Basic Mesh Modeling. OgreXMLConvertor for exporting mesh from Blender to OGRE while OgreMaxSceneExporter2.4.8 for exporting mesh from 3D Studio Max to OGRE environment. ARToolKit supports marker based object tracking in the dynamic real scene. OpenGL and DirectX are used as an API to the graphics hardware for rendering purposes. Visual Studio 2012 provides the platform for OGRE and OpenGL coding.