Design and development of 3D virtual DSLR camera Based on VRML and JavaScript

Experiment teaching is an important part of the curriculum of “Photography and Art”. According to the teaching needs, it was studied in the paper how to design and develop a 3D virtual DSLR camera to ensure that students could have an intuitive understanding on a digital SLR camera. First, 3D experiment models were built by the professional modeling software-3DS MAX, but users could not interact with the model. Therefore, 3D models were exported to a document supported by VRML. Interaction between the user and the 3D models were designed based on VRML and JavaScript language. At last, the virtual system was published online, and could be browsed in the 3D scene at anytime. By moving mouse and rotating the camera, the students could observe the digital camera from different angles to acquaint various components, particularly could interact with the 3D camera, operate the buttons and the components to simulate the real operation. It helped increasing the study interest and improving teaching effect.