Vertex discard occlusion culling

Performing visibility determination in densely occluded environments is essential to avoid rendering unnecessary objects and achieve high frame rates. In this work we present an implementation of the image space Occlusion Culling algorithm done completely in GPU, avoiding the latency introduced by r...

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Detalles Bibliográficos
Autores principales: Barbagallo, Leandro R., Leone, Matias N., García, Rodrigo N
Formato: Objeto de conferencia
Lenguaje:Inglés
Publicado: 2013
Materias:
Ciencias Informáticas
occlusion culling
visibility determination
CPU
shaders
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/31657
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-31657
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Informáticas
occlusion culling
visibility determination
CPU
shaders
spellingShingle Ciencias Informáticas
occlusion culling
visibility determination
CPU
shaders
Barbagallo, Leandro R.
Leone, Matias N.
García, Rodrigo N
Vertex discard occlusion culling
topic_facet Ciencias Informáticas
occlusion culling
visibility determination
CPU
shaders
description Performing visibility determination in densely occluded environments is essential to avoid rendering unnecessary objects and achieve high frame rates. In this work we present an implementation of the image space Occlusion Culling algorithm done completely in GPU, avoiding the latency introduced by returning the visibility results to the CPU. Our algorithm utilizes the GPU rendering power to construct the Occlusion Map and then performs the image space visibility test by splitting the region of the screen space occludees into parallelizable blocks. Our implementation is especially applicable for lowend graphics hardware and the visibility results are accessible by GPU shaders. It can be applied with excellent results in scenes where pixel shaders alter the depth values of the pixels, without interfering with hardware Early-Z culling methods. We demonstrate the benefits and show the results of this method in real-time densely occluded scenes.
format Objeto de conferencia
Objeto de conferencia
author Barbagallo, Leandro R.
Leone, Matias N.
García, Rodrigo N
author_facet Barbagallo, Leandro R.
Leone, Matias N.
García, Rodrigo N
author_sort Barbagallo, Leandro R.
title Vertex discard occlusion culling
title_short Vertex discard occlusion culling
title_full Vertex discard occlusion culling
title_fullStr Vertex discard occlusion culling
title_full_unstemmed Vertex discard occlusion culling
title_sort vertex discard occlusion culling
publishDate 2013
url http://sedici.unlp.edu.ar/handle/10915/31657
work_keys_str_mv AT barbagalloleandror vertexdiscardocclusionculling
AT leonematiasn vertexdiscardocclusionculling
AT garciarodrigon vertexdiscardocclusionculling
bdutipo_str Repositorios
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