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Fast shadow casting algorithm in analytical polygon-based computer-generated holography
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DOI：10.1364/OE.487893.png)
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摘要
En 中文
Shadow casting is essential in computer graphics, which can significantly enhance the reality of rendered images. However, shadow casting is rarely studied in polygon-based computer-generated holography (CGH) because state-of-art triangle-based occlusion handling methods are too complicated for shadow casting and unfeasible for complex mutual occlusion handling. We proposed a novel drawing method based on the analytical polygon-based CGH framework and achieved Z-buffer-based occlusion handling instead of the traditional Painter's algorithm. We also achieved shadow casting for parallel and point light sources. Our framework can be generalized to N-edge polygon (N-gon) rendering and accelerated using CUDA hardware, by which the rendering speed can be significantly enhanced.
Keyword:
ANGULAR SPECTRUM CONVOLUTION
SPECIAL-PURPOSE COMPUTER
PHASE
DIFFRACTION
REMOVAL
FIELD
期刊
IF:
3.3
论文数:
6.1W
被引数:
14.3W
机构
引用论文
Occlusion handling using angular spectrum convolution in fully analytical mesh based computer generated hologram.png)
OPTICS EXPRESS
OAAI
OPTICS EXPRESSIF3.3
OAAI分享收藏Acceleration of polygon-based computer-generated holograms using look-up tables and reduction of the table size via principal component analysis使用查找表加速基于多边形的计算机生成的全息图，并通过主成分分析减小表的大小OPTICS EXPRESS
OPTICS EXPRESSIF3.3
PREAI
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