When setting material.side = THREE.BackSide; for a shpere and the directional light is positioned at camera’s position (i.e. at viewer’s position), it’s the far side of the material that gets lit and the near side is in shadow. Is there any way to invert that thing outside a shader code so that the …

Ok, got on the right track on this one as well by my own, making vec3 normal = - normalize(vNormal); in the normal_fragment_begin chunk, based on this post. Basically I’m just flipping the normals of the back side rendered material so that the material is lit just as if it was rendering its front si…

Invert light direction for the back side outside shader code

Questions

tfoller August 21, 2022, 10:25pm 5

I had a similar question to which I also had to find the answer myself

not so many people will be able to help you, at least right away, if you go too deep into the specifics of the library shader code

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Invert light direction for the back side outside shader code

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