法線貼圖是用來解決低模的細節表現問題

法線貼圖制作工具

NVIDIA Texture Tools for Adobe Photoshop

A collection of texture tools generating normal maps, texture compression, mip map generation and cube map formatting packaged as a plugin for Adobe Photoshop 5.0, 5.1, 6.0, 7.0, CS, CS2, CS3, CS4, CS5 and CS6.

<a href="https://developer.nvidia.com/nvidia-texture-tools-adobe-photoshop">https://developer.nvidia.com/nvidia-texture-tools-adobe-photoshop</a>

如果想詳細了解法線貼圖的原理，請閱讀

<a href="http://www.nvidia.com/object/real-time-normal-map-dxt-compression.html">http://www.nvidia.com/object/real-time-normal-map-dxt-compression.html</a>

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