CN104205173B - 用于估计场景中的不透明度水平的方法及相应的设备 - Google Patents

用于估计场景中的不透明度水平的方法及相应的设备 Download PDF

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Publication number
CN104205173B
CN104205173B CN201380017135.2A CN201380017135A CN104205173B CN 104205173 B CN104205173 B CN 104205173B CN 201380017135 A CN201380017135 A CN 201380017135A CN 104205173 B CN104205173 B CN 104205173B
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ray
scene
point
opacity
shadow surface
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CN104205173A (zh
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帕斯卡·高特隆
帕斯卡·雷高克
让-欧德斯·马维
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Thomson Licensing SAS
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T15/00—3D [Three Dimensional] image rendering
    • G06T15/50—Lighting effects
    • G06T15/60—Shadow generation
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T15/00—3D [Three Dimensional] image rendering
    • G06T15/04—Texture mapping
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T15/00—3D [Three Dimensional] image rendering
    • G06T15/06—Ray-tracing
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2215/00—Indexing scheme for image rendering
    • G06T2215/12—Shadow map, environment map

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  • Engineering & Computer Science (AREA)
  • Computer Graphics (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Image Generation (AREA)
CN201380017135.2A 2012-03-29 2013-03-28 用于估计场景中的不透明度水平的方法及相应的设备 Expired - Fee Related CN104205173B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1252869 2012-03-29
FR1252869A FR2988891A1 (fr) 2012-03-29 2012-03-29 Procede d'estimation de niveau d'opacite dans une scene et dispositif correspondant
PCT/EP2013/056801 WO2013144333A1 (en) 2012-03-29 2013-03-28 Method for estimating the opacity level in a scene and corresponding device

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CN104205173A CN104205173A (zh) 2014-12-10
CN104205173B true CN104205173B (zh) 2017-03-29

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US (1) US9558586B2 (cg-RX-API-DMAC7.html)
EP (1) EP2831848B1 (cg-RX-API-DMAC7.html)
JP (1) JP2015515059A (cg-RX-API-DMAC7.html)
KR (1) KR20140144688A (cg-RX-API-DMAC7.html)
CN (1) CN104205173B (cg-RX-API-DMAC7.html)
CA (1) CA2866849C (cg-RX-API-DMAC7.html)
FR (1) FR2988891A1 (cg-RX-API-DMAC7.html)
WO (1) WO2013144333A1 (cg-RX-API-DMAC7.html)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2525636B (en) * 2014-04-30 2020-08-19 Geomerics Ltd Graphics processing systems
KR20160071774A (ko) * 2014-12-12 2016-06-22 삼성전자주식회사 영상 처리를 위한 영상 처리 장치, 방법 및 기록 매체
US9786095B2 (en) 2015-02-25 2017-10-10 Samsung Electronics Co., Ltd. Shadow rendering apparatus and control method thereof
GB2537729B (en) * 2015-03-03 2017-07-19 Imagination Tech Ltd Systems and methods for soft shadowing in 3-D rendering
US10614614B2 (en) 2015-09-29 2020-04-07 Adshir Ltd. Path tracing system employing distributed accelerating structures
GB2543562B (en) * 2015-10-23 2020-02-05 Geomerics Ltd Graphics processing
US12008704B2 (en) 2016-01-28 2024-06-11 Snap Inc. System for photo-realistic reflections in augmented reality
US10614612B2 (en) 2018-06-09 2020-04-07 Adshir Ltd. Fast path traced reflections for augmented reality
GB2551388B (en) 2016-06-17 2021-01-27 Geomerics Ltd Graphics processing systems
GB2555797B (en) 2016-11-09 2020-04-08 Geomerics Ltd Graphics processing to provide shadows on specular lighting
EP4268757B1 (en) * 2017-10-06 2025-03-26 VISIE Inc. Generation of one or more edges of luminosity to form three-dimensional models of objects
US10699468B2 (en) * 2018-06-09 2020-06-30 Adshir Ltd. Method for non-planar specular reflections in hybrid ray tracing
US11017581B1 (en) 2020-01-04 2021-05-25 Adshir Ltd. Method for constructing and traversing accelerating structures
CN111476877B (zh) * 2020-04-16 2024-01-26 网易（杭州）网络有限公司 一种阴影渲染的方法及装置、电子设备、存储介质
CN114627233B (zh) * 2020-12-08 2025-04-25 上海米哈游天命科技有限公司 确定透明度的方法、装置、电子设备及存储介质
CN116228954A (zh) * 2023-02-28 2023-06-06 网易（杭州）网络有限公司 剪影处理方法、装置、存储介质及电子装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101271588A (zh) * 2007-10-26 2008-09-24 威盛电子股份有限公司 可重建几何阴影图方法
CN101393651A (zh) * 2008-11-07 2009-03-25 北京航空航天大学 一种视野驱动的实时阴影方法
CN101542232A (zh) * 2007-08-07 2009-09-23 松下电器产业株式会社 法线信息生成装置以及法线信息生成方法
CN102365657A (zh) * 2009-03-27 2012-02-29 汤姆森特许公司 在图像中生成阴影的方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL136430A0 (en) 2000-05-29 2001-06-14 Zviaguina Natalia Ray tracing method and system for determining visible parts of surfaces of three-dimensional objects and their parameters of shading accounting for light and shadow volumes
US6903741B2 (en) 2001-12-13 2005-06-07 Crytek Gmbh Method, computer program product and system for rendering soft shadows in a frame representing a 3D-scene
JP2003346176A (ja) * 2002-05-24 2003-12-05 Telecommunication Advancement Organization Of Japan ラジオシティのメッシュ分割方法及びその装置
JP4079249B2 (ja) * 2002-06-03 2008-04-23 任天堂株式会社 ゲーム装置及びゲームプログラム
US7248261B1 (en) 2003-12-15 2007-07-24 Nvidia Corporation Method and apparatus to accelerate rendering of shadow effects for computer-generated images
US7924281B2 (en) 2005-03-09 2011-04-12 Ati Technologies Ulc System and method for determining illumination of a pixel by shadow planes
US7755626B2 (en) 2006-05-03 2010-07-13 Sony Computer Entertainment Inc. Cone-culled soft shadows
US8115767B2 (en) 2006-12-08 2012-02-14 Mental Images Gmbh Computer graphics shadow volumes using hierarchical occlusion culling
US7969438B2 (en) 2007-01-23 2011-06-28 Pacific Data Images Llc Soft shadows for cinematic lighting for computer graphics
US7982734B2 (en) 2007-08-01 2011-07-19 Adobe Systems Incorporated Spatially-varying convolutions for rendering soft shadow effects
US7970237B2 (en) * 2007-08-01 2011-06-28 Adobe Systems Incorporated Spatially-varying convolutions for rendering glossy reflection effects
US20090079758A1 (en) * 2007-09-25 2009-03-26 Max-Planck-Gesellschaft Zur Forderung Per Wissenschaften E.V. Method and device for generating shadow maps
US9171396B2 (en) * 2010-06-30 2015-10-27 Primal Space Systems Inc. System and method of procedural visibility for interactive and broadcast streaming of entertainment, advertising, and tactical 3D graphical information using a visibility event codec
US8442306B2 (en) 2010-08-13 2013-05-14 Mitsubishi Electric Research Laboratories, Inc. Volume-based coverage analysis for sensor placement in 3D environments

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101542232A (zh) * 2007-08-07 2009-09-23 松下电器产业株式会社 法线信息生成装置以及法线信息生成方法
CN101271588A (zh) * 2007-10-26 2008-09-24 威盛电子股份有限公司 可重建几何阴影图方法
CN101393651A (zh) * 2008-11-07 2009-03-25 北京航空航天大学 一种视野驱动的实时阴影方法
CN102365657A (zh) * 2009-03-27 2012-02-29 汤姆森特许公司 在图像中生成阴影的方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Convolution Shadow Maps;Thomas Annen et al.;《 Eurographics Symposium on Rendering》;20071231;第3.1节 *

Also Published As

Publication number Publication date
FR2988891A1 (fr) 2013-10-04
CA2866849A1 (en) 2013-10-03
CA2866849C (en) 2020-04-14
US20150042655A1 (en) 2015-02-12
CN104205173A (zh) 2014-12-10
JP2015515059A (ja) 2015-05-21
WO2013144333A1 (en) 2013-10-03
EP2831848A1 (en) 2015-02-04
KR20140144688A (ko) 2014-12-19
EP2831848B1 (en) 2017-02-01
US9558586B2 (en) 2017-01-31

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