#Vertex
#version 120

void main() {
    gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
    gl_TexCoord[0] = gl_MultiTexCoord0;
    gl_FrontColor = gl_Color;
}

#Fragment
#version 120

uniform float alpha;
uniform sampler2D tex;

void main() {
    gl_FragColor = texture2D(tex, vec2(gl_TexCoord[0])) * gl_Color * vec4(1, 1, 1, alpha);
}