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I'm done modeling the ashtray but I'm having trouble getting realistic glass material. This is my render in cycles. enter image description here I have a picture of my ashtray and would like the effect below.

enter image description here

only ashtray object

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  • $\begingroup$ A big help in making a realistic render is to correctly place the object in its environment. Try to match the scene by adding a plane below the object and move the light so it matches the reference. However you should note Cycles is notoriously not the best tool to render nice caustics like you see below the reference. $\endgroup$
    – Gorgious
    Commented Feb 14, 2022 at 12:17
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    $\begingroup$ The file is the one you've used for the screenshot? There are no lights, no material on the ashtray... $\endgroup$
    – Gordon Brinkmann
    Commented Feb 14, 2022 at 12:18
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    $\begingroup$ well...first i would improve the mesh and go in edit mode -> recalculate outside $\endgroup$
    – Chris
    Commented Feb 14, 2022 at 12:56
  • $\begingroup$ also give it a bit of noise to the surface, both for bump and roughness $\endgroup$
    – moonboots
    Commented Feb 14, 2022 at 12:56
  • $\begingroup$ I have placed a file that contains a ready modeled object. Yes, it is not file from screenshot. I am going to use the ashtray in another scene, where I will throw some objects that I have designed. There I will work on the light and the surroundings. The lower part of the ashtray was difficult and the subdivision surface or bevel modifiers caused visible errors in the mesh and i get crash. $\endgroup$
    – Patryk Adamowicz
    Commented Feb 14, 2022 at 14:57

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You can use 2 noise textures to add a bit of bump to the surface and a bit of roughness to the transparency. Also maybe you should bevel the edges a bit to make them a bit less sharp.

enter image description here

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    $\begingroup$ You're right. I look much better. Thank you for the quick reply! $\endgroup$
    – Patryk Adamowicz
    Commented Feb 14, 2022 at 14:59
  • $\begingroup$ As Marty says, if you want to show the result, please edit your original question ;) $\endgroup$
    – moonboots
    Commented Feb 15, 2022 at 9:30

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