src/cobalt/renderer/glimp_shaders/glsl/vertex_position_and_texcoord.glsl

attribute vec2 a_position;
attribute vec2 a_tex_coord;
varying vec2 v_tex_coord;

void main() {
  gl_Position = vec4(a_position.x, a_position.y, 0, 1);
  v_tex_coord = a_tex_coord;
}