Hey @nahgul! Just as other reflexive materials, glass can be a challenging type of surface to represent in a drawing or painting. But reflexiveness is just one of its aspects. Another obvious thing about glass is that it’s often translucent (so we get to see through it), although not always completely: scratched, worn out, textured or dirty glass can show various degrees of translucency. Another very important property of glass is refraction: as light moves through glass, there will be change in the direction of the light rays, so things we see through a glass object might appear dislocated, distorted or even get pretty abstract depending on how intense is the refraction (which, among other things, depends on the form and position of the glass object relative to its light source and environment). So, as you can see, there’s a lot to talk about! In a nutshell, if you wish to get just some simple and quick practical tips, you can always browse tutorials on YouTube such as this one: https://youtu.be/Lf8lwkpu44s And if you want to really learn the foundation of how to draw light, surfaces and materials (and not just glass, by the way), here’s a few resources I’d recommend starting with: . CtrlPaint’s Photoshop Rendering series: https://ctrlpaint.myshopify.com/collections/foundation-skills (Part 3 is where materials and textures are covered, but if you haven’t studied basic lighting and rendering before, I’d recommend starting with Part 1) . Sam Nielson’s Fundamentals of Lighting on Schoolism: https://schoolism.com/courses/art/fundamentals-of-lighting-sam-nielson . Scott Robertson’s book “How to render” This is a lot of stuff, so if you go through it, take it easy and take your time. 🙂 Make sure to have enough practice time too. Hope this helps. Good studies!

Hi. Yeah. Try to understand the glasses as mirrors. The reflexes must look very sharp. Do not blur the objects reflected on the glass, and always put a little white dot as a main reflex of the source light. Also have in mind the casted light of the surface where the glass object is resting.

If you are drawing from a photo, subdivide the larger shapes into medium shapes, then those into smaller shapes. Find the main darks and lights and color those in to help orient and anchor yourself If drawing clear glass from life, the lighting must be consistent, and you cannot move the object or things around the room, (especially things behind the object) otherwise everything will change in the glass. You must also close one eye (to avoid having two different viewpoints and two different sets of reflections and refractions) and not move your head, or always return your head/ eye to the same vantage point in order to be seeing the same reflections and refractions each time