1#version 120 2 3// Attributes. 4attribute float attr_brightness; 5attribute vec2 attr_dither_texture_position; 6attribute vec2 attr_position; 7attribute vec2 attr_texture_offset; 8attribute vec2 attr_texture_position; 9 10uniform float u_z_value; 11 12// Output of vertex shader. 13varying float var_brightness; 14varying vec2 var_dither_texture_position; 15varying vec2 var_texture_offset; 16varying vec2 var_texture_position; 17 18void main() { 19 var_brightness = attr_brightness; 20 var_dither_texture_position = attr_dither_texture_position; 21 var_texture_offset = attr_texture_offset; 22 var_texture_position = attr_texture_position; 23 gl_Position = vec4(attr_position, u_z_value, 1.); 24} 25