Memory efficient light baking

Schäfer, h. c. Erich; SüíMuth, Jochen; Denk, Cornelia; Stamminger, Marc

doi:10.1016/j.cag.2011.12.001

Cited by 7 publications

(14 citation statements)

References 14 publications

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“…As described in [1], we also find that we obtain the best results if we fit the vertex colors to the lighting map signal in a least-squares sense. Using this optimized vertex colors, we can get a pleasure effect with a small subdivision level.…”

Section: Optimized Vertex Colormentioning

confidence: 84%

“…Recently, some researchers have proposed hybrid methods to address some of these problems. Schäfer et al [1] combines vertex-and texture-based storages. They use optimized vertex colors for interpolation by default and textures only on triangles where vertex colors cannot reconstruct the input signal.…”

Section: Related Workmentioning

confidence: 99%

“…Differently, we do not use Poisson samples on the mesh as done in [1]. We use intrinsic texel samples in the lighting map and sample model in texture space.…”

Section: Optimized Vertex Colormentioning

confidence: 99%

“…Similar to [1] and [10], we also use least squares sense optimized method. Differently, we do not use Poisson samples on the mesh as done in [1].…”

Section: Optimized Vertex Colormentioning

confidence: 99%

“…The common solution is to precompute such illumination effects and store them as vertex attributes or textures [1,2]. Techniques that fall into this category include: irradiance volume, precomputed radiance transfer (PRT), ambient occlusion, and soft shadow.…”

mentioning

confidence: 99%

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Adaptive mesh subdivision for efficient light baking

Li¹,

Zhou²,

Li³

et al. 2012

Vis Comput

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Light baking has long been a popular technique for real-time rendering. It usually precomputes and bakes the global lighting effects as vertex attributes or textures. Vertex baking requires less memory but can cause artifacts for large triangles. Texture baking can avoid this and generate a high-quality visual effect in real-time rendering. However, it requires significant memory consumption, which may limit the real-time performance and usage. To address this problem, we propose an adaptive mesh subdivision algorithm for memory-efficient light baking, including a fast triangle subdivision level determination method and an optimized solution to calculate vertex colors. Only the subdivided mesh is required during the real-time rendering. Therefore, memory requirements can be significantly reduced while keeping the visual effect. Besides, the subdivision level is allowed to be intuitively controlled by users with a specified parameter. Our algorithm can be easily implemented on commodity graphics hardware and integrated in existing real-time applications such as online preview systems.

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Section: Optimized Vertex Colormentioning

confidence: 84%

Section: Related Workmentioning

confidence: 99%

“…Differently, we do not use Poisson samples on the mesh as done in [1]. We use intrinsic texel samples in the lighting map and sample model in texture space.…”

Section: Optimized Vertex Colormentioning

confidence: 99%

“…Similar to [1] and [10], we also use least squares sense optimized method. Differently, we do not use Poisson samples on the mesh as done in [1].…”

Section: Optimized Vertex Colormentioning

confidence: 99%

mentioning

confidence: 99%

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