in vec4 vTexCoord; in vec4 vColor; layout(location=0) out vec4 FragColor; void main() { vec4 frag = vColor; vec4 t1 = texture(tex, vTexCoord.xy); vec4 t2 = texture(texture2, vec2(vTexCoord.x, 1.0-vTexCoord.y)); FragColor = frag * vec4(t1.r, t1.g, t1.b, t2.a); }