VERTEX

uniform float scroll;
void main()
{

	gl_Position=ftransform(); 
	
	gl_TexCoord[0] = gl_MultiTexCoord0 + vec4(scroll,0,0,0);


}
PIXEL
uniform sampler2D tex;


void main()
{
	gl_FragColor =  vec4(0,0,0,texture2D(tex,gl_TexCoord[0].xy).r ) ;
}
