Computer graphics: principles and practice (2nd ed.)
Computer graphics: principles and practice (2nd ed.)
Through-the-lens camera control
SIGGRAPH '92 Proceedings of the 19th annual conference on Computer graphics and interactive techniques
CamDroid: a system for implementing intelligent camera control
I3D '95 Proceedings of the 1995 symposium on Interactive 3D graphics
Expressive autonomous cinematography for interactive virtual environments
AGENTS '00 Proceedings of the fourth international conference on Autonomous agents
A Flexible New Technique for Camera Calibration
IEEE Transactions on Pattern Analysis and Machine Intelligence
Artistic Multiprojection Rendering
Proceedings of the Eurographics Workshop on Rendering Techniques 2000
Artistic Composition for Image Creation
Proceedings of the 12th Eurographics Workshop on Rendering Techniques
Ryan: rendering your animation nonlinearly projected
Proceedings of the 3rd international symposium on Non-photorealistic animation and rendering
Automatic construction of 3D models from architectural line drawings
Proceedings of the 2008 symposium on Interactive 3D graphics and games
Non-linear perspective widgets for creating multiple-view images
NPAR '08 Proceedings of the 6th international symposium on Non-photorealistic animation and rendering
Automatic blending of multiple perspective views for aesthetic composition
SG'10 Proceedings of the 10th international conference on Smart graphics
Interactive panoramic map-like views for 3D mountain navigation
Computers & Geosciences
Multitouch Gestures for Constrained Transformation of 3D Objects
Computer Graphics Forum
Stereo compositing accelerated by quadtree structures in piecewise linear and curvilinear spaces
Proceedings of the Symposium on Digital Production
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Linear perspective is a good approximation to the format in which the human visual system conveys 3D scene information to the brain. Artists expressing 3D scenes, however, create nonlinear projections that balance their linear perspective view of a scene with elements of aesthetic style, layout and relative importance of scene objects. Manipulating the many parameters of a linear perspective camera to achieve a desired view is not easy. Controlling and combining multiple such cameras to specify a nonlinear projection is an even more cumbersome task. This paper presents a direct interface, where an artist manipulates in 2D the desired projection of a few features of the 3D scene. The features represent a rich set of constraints which define the overall projection of the 3D scene. Desirable properties of local linear perspective and global scene coherence drive a heuristic algorithm that attempts to interactively satisfy the given constraints as a weight-averaged projection of a minimal set of linear perspective cameras. This paper shows that 2D feature constraints are a direct and effective approach to control both the 2D layout of scene objects and the conceptually complex, high dimensional parameter space of nonlinear scene projection.