vaNormal

Danger

This attribute only works with the core profile in Minecraft 1.17 and newer. It is recommended to use the compatibility profile with Iris for better support.

in vec3 vaNormal;

Valid Programs: gbuffers_*.vsh, shadow.vsh

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The vertex normal vector attribute, equivalent to gl_Normal from the compatibility profile.

Note

The vector is not guaranteed to be normalized.

The normal vector from vaNormal is approximate, and in model space (which varies for different geometry). It can be converted to view space using normalMatrix (or gl_NormalMatrix in the compatibility profile).

vec3 normal = normalMatrix * normalize(vaNormal);

vec3 normal = gl_NormalMatrix * normalize(gl_Normal);