Post-processing NPR effects for video games
Proceedings of the 12th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and Its Applications in Industry
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We propose a new model to stylize lighting effects in 2D images. Our stylizations are based on well-known artistic styles ranging from Chiaroscuro to comics. Lighting has always been used in graphical art to give realism to an illustration or to enhance visual contrasts between objects in a scene. This allows creating a global atmosphere. Giving an input image, our model automatically generates a lighting map of the image which may be modified by the user to determine different types of shadows or light effects like highlights. Following graphical arts styles, we propose six stylizations. Our model is flexible and specifically designed to help users and even amateur users, to semi-automatically stylize the different kinds of light effects in an image.