attr

Interpolation attribute and channel:

Syntax	Description
attr{0..32}.x	Attribute 0..32 with x channel.
attr{0..32}.y	Attribute 0..32 with y channel.
attr{0..32}.z	Attribute 0..32 with z channel.
attr{0..32}.w	Attribute 0..32 with w channel.

Examples:

v_interp_p1_f32 v1, v0, attr0.x
v_interp_p1_f32 v1, v0, attr32.w