SIGGRAPH '96 Proceedings of the 23rd annual conference on Computer graphics and interactive techniques
Hierarchical rendering of trees from precomputed multi-layer z-buffers
Proceedings of the eurographics workshop on Rendering techniques '96
A shading language on graphics hardware: the pixelflow shading system
Proceedings of the 25th annual conference on Computer graphics and interactive techniques
Proceedings of the 25th annual conference on Computer graphics and interactive techniques
LDI tree: a hierarchical representation for image-based rendering
Proceedings of the 26th annual conference on Computer graphics and interactive techniques
Billboard clouds for extreme model simplification
ACM SIGGRAPH 2003 Papers
Volumetric reconstruction and interactive rendering of trees from photographs
ACM SIGGRAPH 2004 Papers
An information-theoretic ambient occlusion
Computational Aesthetics'07 Proceedings of the Third Eurographics conference on Computational Aesthetics in Graphics, Visualization and Imaging
Extreme model simplification for forest rendering
NPH'05 Proceedings of the First Eurographics conference on Natural Phenomena
Light space perspective shadow maps
EGSR'04 Proceedings of the Fifteenth Eurographics conference on Rendering Techniques
Hierarchical image-based rendering using texture mapping hardware
EGWR'99 Proceedings of the 10th Eurographics conference on Rendering
Somatosensory interaction for real-time large scale roaming
Proceedings of the 12th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and Its Applications in Industry
| Hi-index | 0.00 |
This paper presents a technique to render in real time complex trees using billboard clouds as an impostor simplification for the original polygonal tree, combined with a new texture-based representation for the foliage. The technique provides several new contributions with respect to previous approaches. The new algorithm allows progressive level of detail both at the geometric and at the shader levels. It also preserves the parallax effects of the original polygonal model keeping leaf positions, orientations, and preserving the overlapping of the leaves as seen from any view point. In addition, the texture-based representation provides high-definition close views without introducing high memory requeriments. We adapted a realistic lighting model with soft shadows and a global illumination precomputation, allowing to render highly complex scenes with thousands of trees in real time.