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Implement log2 method for Vec3 #566

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JMS55 opened this issue Oct 3, 2024 · 1 comment

JMS55 commented Oct 3, 2024

Currently I'm doing:

 let bits_per_vertex_position_channel_x = range.as_vec3().x.log2().ceil() as u8;
 let bits_per_vertex_position_channel_y = range.as_vec3().y.log2().ceil() as u8;
 let bits_per_vertex_position_channel_z = range.as_vec3().z.log2().ceil() as u8;

IVec3 -> Vec3 -> log2 -> ceil -> cast to u8. Everything except log2() and cast to u8 can be done as vector ops.

Owner

bitshifter commented Oct 30, 2024 •

edited

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While I can look at adding log2, recent glam changes mean you should be able to do range.as_vec3().map(|x| x.log2()).ceil().as_u8vec3()

map was added in 0.29.0 and as_u8vec3 should be in 0.29.1.

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