Bit-mapped graphics are often called raster graphics.

位映像经常被称做光栅图形。

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Most bit-mapped display screens can display text and graphics.

多数位映像显示器可以显示文本和图形。

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Finally, the shadow texture is mapped to a corresponding surface in 3D scene by projective texture based on programmable graphics hardware.

最后，在可编程图形硬件上，采取投影纹理映射技术将阴影纹理投射到场景中的相应表面。

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