The scene was rendered witn Vue 5 Infinite, but this is standard lighting (no HDRI or such). I have added some quadratic lights (one in each ice cube) and two additional point light to increase the reflection on the glass . The glass texture is a composite one : two very similar glass mats, orientation dependant to avoid a too important symmetry of reflection on the left and the right part of the glass... attempt to use bump to simulate a wet effect on the glas and the straw....