-attribute mediump vec2 aPosition;
+attribute highp vec2 aPosition;
attribute mediump vec2 aTexCoord;
attribute mediump vec4 aColor;
uniform mediump vec2 uOffset;
void main()
{
- mediump vec4 position = vec4( aPosition.xy + uOffset, 0.0, 1.0 );
+ highp vec4 position = vec4( aPosition.xy + uOffset, 0.0, 1.0 );
gl_Position = uMvpMatrix * position;
vTexCoord = aTexCoord;
vColor = aColor;