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So I have a scene where I want it to be raining.

It is a room with 2 windows, the camera points to the windows and looks out. The surrounding buildings are faked by a box enclosing the room. A plane with an emitter particle system generates the raindrops. The materials have Backface Culling enabled so you see the room. The room is closed, the surrounding box has no ceiling.

I have 3 point lights below the rain and above the ground, so it's like a street light and I also have a dim sum light (strength is .5 and the color is dark). Also, I tried adding an HDRI but for some reason, it always appears as light pink.

image 1

Problem is, (I think) the environment is dark so the raindrops are not that visible.

The material used for the rain is just a glass BSDF with glossy BSDF (0 roughness) mixed with a mix shader with a factor of 0.8.

How do I make the raindrops more visible?

Also, the raindrops are the slightly dark grey tint on the picture.

The camera view of the window:

image 2

blend file (I forgot to switch the render engine to cycles so you have to change if when you download the file)

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  • $\begingroup$ Hello, are you in Eevee? In that case it's better to have an HDRI or some lights to have something to reflect, or you need to use a Light Probe and Bake Indirect Lights in order to have something, maybe it's your problem here? $\endgroup$
    – moonboots
    Commented Sep 1, 2021 at 14:17
  • $\begingroup$ I'm in cycles. Though, I'm trying to get results similar to Eevee $\endgroup$
    – Uhmzzzzmmmm
    Commented Sep 1, 2021 at 22:48
  • $\begingroup$ And how did you set up the lighting? Do you use an HDRI? (for some reason people only answer the first question even if there are 2 or more in the comments ;-) $\endgroup$
    – Blunder
    Commented Sep 2, 2021 at 9:51
  • $\begingroup$ I have 3 point lights below the rain and above the ground so it's like a street light and I also have a dim sum light (strength is .5 and the color is dark). Also, I tried adding a HDRI but for some reason it always appear as light pink. $\endgroup$
    – Uhmzzzzmmmm
    Commented Sep 2, 2021 at 9:56
  • $\begingroup$ Maybe pack your images and share your file (at least a part of it) so that we can test? pasteall.org/blend $\endgroup$
    – moonboots
    Commented Sep 2, 2021 at 10:33

1 Answer 1

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So, turns out I can decrease the IOR of the glass material to something much lower. Even if it doesn't look too good, is still got the job done.

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