Real time design and animation of fractal plants and trees
SIGGRAPH '86 Proceedings of the 13th annual conference on Computer graphics and interactive techniques
Voxel space automata: modeling with stochastic growth processes in voxel space
SIGGRAPH '89 Proceedings of the 16th annual conference on Computer graphics and interactive techniques
The algorithmic beauty of plants
The algorithmic beauty of plants
SIGGRAPH '94 Proceedings of the 21st annual conference on Computer graphics and interactive techniques
Visual models of plants interacting with their environment
SIGGRAPH '96 Proceedings of the 23rd annual conference on Computer graphics and interactive techniques
Realistic modeling and rendering of plant ecosystems
Proceedings of the 25th annual conference on Computer graphics and interactive techniques
SIGGRAPH '85 Proceedings of the 12th annual conference on Computer graphics and interactive techniques
Approximate and probabilistic algorithms for shading and rendering structured particle systems
SIGGRAPH '85 Proceedings of the 12th annual conference on Computer graphics and interactive techniques
Particle Systems—a Technique for Modeling a Class of Fuzzy Objects
ACM Transactions on Graphics (TOG)
Plant models faithful to botanical structure and development
SIGGRAPH '88 Proceedings of the 15th annual conference on Computer graphics and interactive techniques
The use of positional information in the modeling of plants
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
Realistic image synthesis using photon mapping
Realistic image synthesis using photon mapping
Interactive Modeling of Plants
IEEE Computer Graphics and Applications
An efficient instantiation algorithm for simulating radiant energy transfer in plant models
ACM Transactions on Graphics (TOG)
Selected papers from the 5th International Workshop on Graph Gramars and Their Application to Computer Science
Virtual Climbing Plants Competing for Space
CA '02 Proceedings of the Computer Animation
Physically-based driven tree animations
NPH'06 Proceedings of the Second Eurographics conference on Natural Phenomena
Interactive modeling of virtual ecosystems
NPH'09 Proceedings of the Fifth Eurographics conference on Natural Phenomena
Modeling plant plasticity from a biophysical model: biomechanics
Proceedings of the 12th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and Its Applications in Industry
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Light interaction is one of the most important factors in developing realistic plant models. Plants react to received illumination by bending branches, adapting their growth rate, orienting leaves and flowers, producing larger or smaller leaves, etc. In this paper, we present a novel approach to simulate plant growth as a response to environment illumination. The basic idea of our algorithm is to simulate light transport in the environment in which plants grow by tracing light particles originating from light sources. Both intensity and mean direction of incident illumination are determined easily. This is based on a ray density estimation of the environment illumination by means of a predominant illumination direction. An adaptive spatial data structure is used to store the rays along which light particles travel in space. This data structure allows efficient calculation of ray density at locations where the algorithm needs to query incident illumination. Our approach takes into account both direct and indirect illumination and is an algorithm that is both flexible and accurate. It is easy to implement and more general illumination models can be incorporated in a straightforward manner. Furthermore, using a non-uniform, adaptive data structure for storing the rays, calculation time and storage requirements are kept within reasonable limits.