/*---------------------------------------------------------------------------*

  Copyright 2010-2011 Nintendo.  All rights reserved.

  These coded instructions, statements, and computer programs contain
  proprietary information of Nintendo of America Inc. and/or Nintendo
  Company Ltd., and are protected by Federal copyright law.  They may
  not be disclosed to third parties or copied or duplicated in any form,
  in whole or in part, without the prior written consent of Nintendo.

 *---------------------------------------------------------------------------*/
uniform sampler2D u_CharTex;
uniform vec4      u_Color;
varying vec2      v_TexCoord;

void main()
{
    vec4 texColor = texture2D(u_CharTex, v_TexCoord.xy);
    texColor.a    = smoothstep(0.0, 1.0, texColor.r);
    texColor.rgb  = vec3(1.0, 1.0, 1.0);
    gl_FragColor  = u_Color * texColor;
}