Chaos Corona for Cinema 4D > [C4D] Feature Requests

Normal Maps - which dircection

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romullus:
Proper normal maps with distinct features can be quite easily distinguished between OpenGL (+Y) and DirectX (-Y). Usually the former looks more correct to the eye, while the latter looks inverted. You can see good example of this here: https://www.texturecan.com/post/3/DirectX-vs-OpenGL-Normal-Map/ scroll to the examples with keyboard. This is not 100% reliable technique, as some normal maps can be hard to read and sometimes your mind may play tricks on you, but it's quite handy to know that you can quite effortlessly identify like 90% of good normal maps. I said "good", because this trick almost completely does not work on trash normal maps, that are derived from single images and in other fake ways.

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