Partitioned Shadow Volumes

Gerhards, Julien; Mora, Fernando Cobos; Aveneau, Lilian; Ghazanfarpour, Djamchid

doi:10.1111/cgf.12583

Cited by 5 publications

(3 citation statements)

References 18 publications

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“…The right side depicts a possible scenario when the purple triangle is added first and all other triangles afterwards. Used both in [GMAG15] and [MGAG16].…”

Section: Related Workmentioning

confidence: 99%

See 1 more Smart Citation

Comparison of Modern Omnidirectional Precise Shadowing Techniques Versus Ray Tracing

Kobrtek

Milet

Tóth

et al. 2021

Computer Graphics Forum

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This paper presents an in depth comparison of state‐of‐the‐art precise shadowing techniques for an omnidirectional point light. We chose several types of modern shadowing algorithms, starting from stencil shadow volumes, methods using traversal of acceleration structures to hardware‐accelerated ray‐traced shadows. Some methods were further improved – robustness, increased performance; we also provide the first multi‐platform implementations of some of the tested algorithms. All the methods are evaluated on several test scenes in different resolutions and on two hardware platforms – with and without dedicated hardware units for ray tracing. We conclude our findings based on speed and memory consumption. Ray‐tracing is the fastest and one of the easiest methods to implement with small memory footprint. The Omnidirectional Frustum‐Traced Shadows method has a predictable memory footprint and is the second fastest algorithm tested. Our stencil shadow volumes are faster than some newer algorithms. Per‐Triangle Shadow Volumes and Clustered Per‐Triangle Shadow Volumes are difficult to implement and require the most memory; the latter method scales well with the scene complexity and resolution. Deep Partitioned Shadow Volumes does not excel in any of the measured parameters and is suitable for smaller scenes. The source codes of the testing framework have been made publicly available.

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“…The right side depicts a possible scenario when the purple triangle is added first and all other triangles afterwards. Used both in [GMAG15] and [MGAG16].…”

Section: Related Workmentioning

confidence: 99%

“…Gerhards et al. [GMAG15] have proposed a tree that is ternary rather than binary, calling it TOP tree , built and traversed on the GPU. Instead of splitting the triangles during the build process as SVBSP, this algorithm assigns triangles that intersect a split plane into a separate intersection node, as seen in Figure 1.…”

Section: Related Workmentioning

confidence: 99%

Comparison of Modern Omnidirectional Precise Shadowing Techniques Versus Ray Tracing

Kobrtek

Milet

Tóth

et al. 2021

Computer Graphics Forum

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show abstract

“…Gerhards et al [Ger15] use BSP trees constructed from per-triangle frusta. Fragments are then tested against this structure, whether they are lit or shadowed.…”

Section: Related Workmentioning

confidence: 99%

Silhouette Extraction for Shadow Volumes Using Potentially Visible Set

Kobrtek¹,

Milet²,

Herout³

2019

JWSCG

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Wireframe representation of a given model. middle: We voxelize the space around the model. One voxel on the lowest octree level is selected, based on the light position, and all potentially-silhouette (need to be tested) and silhouette edges (guaranteed to be silhouette) can be collected by ascending the octree hierarchy. right: Red coloured edges are those that are a part of the silhouette after testing the set of potentially silhouette edges (all red and black ones). Only a small subset of model edges need to be tested, which considerably reduces the computational complexity.

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Improved Partitioned Shadow Volumes Method of Real-Time Rendering Using Balanced Trees

Choroś

Suder

2017

Computational Collective Intelligence

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Partitioned Shadow Volumes

Cited by 5 publications

References 18 publications

Comparison of Modern Omnidirectional Precise Shadowing Techniques Versus Ray Tracing

Comparison of Modern Omnidirectional Precise Shadowing Techniques Versus Ray Tracing

Silhouette Extraction for Shadow Volumes Using Potentially Visible Set

Improved Partitioned Shadow Volumes Method of Real-Time Rendering Using Balanced Trees

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