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I saw a render (attached) with really realistic looking shadows. Any clue how to do this bokeh-style shadow?

Thanks in advanceenter image description here

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  • $\begingroup$ use point light or a very small light source and have it go through a texture that occludes some of the light. In film is called a cuoloris (en.wikipedia.org/wiki/Cucoloris) Here's a video that shows you how to do this in modo, gbut it cvan be easily done in blender. youtube.com/watch?v=uaog4aL7AhM to soften the shadows make the source larger. $\endgroup$
    – susu
    Jun 18, 2020 at 22:55

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One way is to use geometry:

enter image description here

In the scene below, the shadow geometry is simply hidden to the camera in render time and has a grey transparent shader (the color controls the opacity).

enter image description here enter image description here

Or you can use a texture for a similar effect like so:

enter image description here

Here is simply an image texture with transparent shader. The light in the scene is a sun lamp. enter image description here

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I found a great tutorial by Shane Spence Design for Blender and Keyshot that used image sequences of real trees to create this effect: https://www.youtube.com/watch?v=lYR0wlRmuZI

By using image sequences, you can even animate the shadows created. i assume that the bokeh circles can be achieved by using a larger spotlight.

It's kind of silly to come back here and answer my own question two years later, but I feel like other people would find this helpful. Take care!

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