Hello, how may I make the black parts transparent but keep the texture flat at the same time ? On the second picture,I used Principal BSDF it makes the black parts transparent but the texture looses it's flatness.
How may I do it please
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When you connect color to output, the Emission shader is used implicitly. So to reproduce the same effect with transparency, use the Emission shader connected to a Mix Shader controlled by Alpha. The other shader to mix is the Transparent shader:
And as a fun fact, you could set the following settings in the Principled BSDF for the same effect (irrelevant settings hidden):