发明名称 |
Method and apparatus for efficient generation of texture coordinate displacements for implementing emboss-style bump mapping in a graphics rendering system |
摘要 |
A graphics system including a custom graphics and audio processor produces exciting 2D and 3D graphics and surround sound. The system includes a graphics and audio processor including a 3D graphics pipeline and an audio digital signal processor. Emboss style effects are created using fully pipelined hardware including two distinct dot-product computation units that perform a scaled model view matrix multiply without requiring the Normal input vector and which also compute dot-products between the Binormal and Tangent vectors and a light direction vector in parallel. The resulting texture coordinate displacements are provided to texture mapping hardware that performs a texture mapping operation providing texture combining in one pass. The disclosed pipelined arrangement efficiently provides interesting embossed style image effects such as raised and lowered patterns on surfaces.
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申请公布号 |
US2005195210(A1) |
申请公布日期 |
2005.09.08 |
申请号 |
US20050106673 |
申请日期 |
2005.04.15 |
申请人 |
NINTENDO CO., LTD. |
发明人 |
DEMERS ERIC;LEATHER MARK M.;SEGAL MARK G. |
分类号 |
G06T1/20;G06T3/00;G06T15/04;G09G5/00;(IPC1-7):G09G5/00 |
主分类号 |
G06T1/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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