发明名称 |
Texture unit, image rendering apparatus and texel transfer method for transferring texels in a batch |
摘要 |
An image rendering apparatus is provided to reduce the amount of data communicated between a shader and a texture unit. The texture unit performs a texture mapping operation for mapping a texture to an object in a three-dimensional space. An input unit receives a single texture address parameter from the shader unit. A coordinate generation unit generates a plurality of texel coordinates based on the texture address parameter. A retrieval unit retrieves a plurality of texel values corresponding respectively to the plurality of generated texel coordinates in a texture cache or in an external texture buffer. An output unit outputs the retrieved texel values to the shader unit in a batch. Since a plurality of texel values are read from a single texture address parameter input, the bandwidth for communications from the shader to the texture unit may be saved.
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申请公布号 |
US7405735(B2) |
申请公布日期 |
2008.07.29 |
申请号 |
US20050087075 |
申请日期 |
2005.03.22 |
申请人 |
SONY COMPUTER ENTERTAINMENT INC. |
发明人 |
KOGUCHI TAKAHIRO |
分类号 |
G09G5/00;G06T15/04 |
主分类号 |
G09G5/00 |
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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