Maximum entropy light source placement
Proceedings of the conference on Visualization '02
Locally controllable stylized shading
ACM SIGGRAPH 2007 papers
Illumination Brush: Interactive Design of All-Frequency Lighting
PG '07 Proceedings of the 15th Pacific Conference on Computer Graphics and Applications
Interactive reflection editing
ACM SIGGRAPH Asia 2009 papers
envyLight: an interface for editing natural illumination
ACM SIGGRAPH 2010 papers
Interactive on-surface signal deformation
ACM SIGGRAPH 2010 papers
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In computer graphics, shading techniques play an important role when displaying realistic virtual objects. Although physically-based techniques can generate realistic results, it is often difficult to produce desired shading effects. Therefore, artists usually creates desired shading effects by manually placing many virtual light sources. However, this is not an easy task since it is difficult to predict the shading effects obtained by those virtual light sources. We propose an intuitive system that allows a user to produce the desired shading effects. In our system, the user can directly specify the desired intensities at arbitrary positions on the surfaces of objects. The desired shading effects are realized by our feature-based interpolation of the specified intensities.