precision mediump float;
varying vec2 TexCoord;
varying float vHeight;

uniform sampler2D Texture;

void main()
{
    vec4 stoneColor = texture2D(Texture, TexCoord);
  
    gl_FragColor = vec4(stoneColor.rgb, vHeight);
	//gl_FragColor = vec4(vHeight, vHeight, vHeight, vHeight);
	//gl_FragColor = vec4(1.0, 0.0, 1.0, 1.0);
}