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Caustics mapping: an image-space technique for real-time caustics.

Musawir A Shah¹, Jaakko Konttinen, Sumanta Pattanaik

¹School of Electrical Engineering and Computer Science, Engineering III, University of Central Florida, Orlando 32816, USA. mali@cs.ucf.edu

IEEE Transactions on Visualization and Computer Graphics

|January 16, 2007

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This paper introduces a straightforward method for real-time rendering of caustics using graphics hardware. The technique efficiently generates caustic map textures for realistic lighting effects without complex computations.

Area of Science:

Computer Graphics
Rendering Techniques
Computational Geometry

Background:

Real-time rendering of caustics is computationally intensive.
Previous methods often require complex geometric tests or precomputation.

Purpose of the Study:

To present a simple and practical algorithm for real-time caustic rendering.
To avoid expensive geometric tests and precomputation.

Main Methods:

The algorithm creates a caustic map texture.
It utilizes this texture to render caustics on non-shiny surfaces.
The method is similar in concept to shadow mapping.

Main Results:

Achieves real-time rendering of caustics.

Related Experiment Videos

Avoids ray-object intersection tests and precomputation.

Integrates seamlessly with standard rasterization pipelines.

Conclusions:

The presented technique offers an efficient and practical solution for real-time caustic rendering.
It leverages graphics hardware for high performance.
This approach simplifies caustics generation in computer graphics applications.