bgfx/examples/12-lod/varying.def.sc

vec3 v_normal    : NORMAL    = vec3(0.0, 0.0, 1.0);
vec2 v_texcoord0 : TEXCOORD0 = vec2(0.0, 0.0);
vec3 v_pos       : TEXCOORD1 = vec3(0.0, 0.0, 0.0);
vec3 v_view      : TEXCOORD2 = vec3(0.0, 0.0, 0.0);

vec3 a_position  : POSITION;
vec2 a_texcoord0 : TEXCOORD0;
vec3 a_normal    : NORMAL;