i am texturing a terrain…i notiched that some sand particles reflects lights …that effect i want to have in the game so that it looks real…but it should be dependent on the camera,ground the Sun…!
What you are looking for is a specular map. Just use the sand texture you have darken it and add random noise. Use that for specularity.
thanks…! i want some glare also…which i will have to use a script…but i dont know how ?!