Title:
グラフィクスシステム用再循環シェードツリーブレンダ
Document Type and Number:
Japanese Patent JP4731028
Kind Code:
B2
Abstract:
A graphics system (50) including a custom graphics and audio processor (114) that produces exciting 2D and 3D graphics and surround sound. The system (50) includes a graphics and audio processor (114) including a 3D graphics pipeline (180) and an audio digital signal processor (156). A relatively low chip-footprint, versatile texture environment (TEV) processing subsystem (600) is implemented in a pipelined graphics system (180) by utilizing a flexible API and a hardware-accelerated programmable texture blender/shader arrangement (602) that circulates computed color and alpha data over multiple texture blending/shading cycles (stages). The texture-environment subsystem (600) combines per-vertex lighting, textures and constant (rasterized) colors to form computed pixel color prior to fogging and final pixel blending. Blending operations for color (RGB) and alpha components are independently processed within the TEV subsystem (600) by a single sub-blend unit (602) consisting of a set of color/alpha-combiner (shader) hardware that is reused over multiple processing stages to combine multiple textures. A set of four selectable current-color input/output registers (660) which are shared among all stages is provided at the output of the sub-blend unit to temporarily store computed color results and to pass computed color between stages. Up to sixteen independently programmable consecutive stages, forming a chain of blending operations, are supported for applying multiple textures to a single object in a single rendering pass.
Inventors:
Robert Aid Levin
Timothy Jay Van Hook
Patrick Wylow
Mark m leather
Matthew Comsoft
Timothy Jay Van Hook
Patrick Wylow
Mark m leather
Matthew Comsoft
Application Number:
JP2001081892A
Publication Date:
July 20, 2011
Filing Date:
March 22, 2001
Export Citation:
Assignee:
Nintendo Co., Ltd
International Classes:
A63F13/00; G06T15/00; G06T1/20; G06T15/04; G06T15/50; G06T15/83
Domestic Patent References:
| JP2000155845A | ||||
| JP9006967A | ||||
| JP10269377A | ||||
| JP8077385A |
Foreign References:
| WO2000004505A1 |
Other References:
数納 龍一,“CGパワーツール 「SOFTIMAGE/XSI」”,GW,日本,株式会社アイ・ディ・ジー・ジャパン,2000年 5月 1日,第3巻,第5号,p.140-143
中野 修一,“最新チップとAPI,注目の3Dファンクションを理解する開校!3Dビデオ大学 博士コース:3D描画表現を極める-その手法とキーワード解説”,DOS/V magazine,日本,ソフトバンク株式会社,1999年 3月 1日,第8巻,第5号,p.188-194
中野 修一,“最新チップとAPI,注目の3Dファンクションを理解する開校!3Dビデオ大学 博士コース:3D描画表現を極める-その手法とキーワード解説”,DOS/V magazine,日本,ソフトバンク株式会社,1999年 3月 1日,第8巻,第5号,p.188-194
Attorney, Agent or Firm:
Yoshito Yamada