1 #ifdef HAS_FLOAT_TEXTURE
2 #ifdef HAS_HALF_FLOAT_TEXTURE
3 #extension GL_OES_texture_half_float : enable
5 #extension GL_OES_texture_float : enable
8 #ifdef HAS_FRAGMENT_HIGH_PRECISION
9 #extension GL_OES_fragment_precision_high : enable
10 precision highp float;
12 precision mediump float;
14 #if __VERSION__ >= 300
15 out mediump vec4 opixel;
20 #if __VERSION__ >= 300