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Create a physically accurate kaleidoscope in Blender 2.8x with simple glossy shaders and images of your choosing (using the images as planes add-on).
Years ago I created a tutorial in After Effects wherein i used the mirror effect to create a "kaleidoscopic" mandala pattern. Today I decided to return to the kaleidoscope idea, but this time with an eye toward physical accuracy. In this video I create a visualization that more closely matches what a real kaleidoscope accomplishes.
TLDR for this video:
0. delete default cube and light
1. create a cylinder with no caps and 3 vertices
2. shade the cylinder with just a glossy node, 0.000 roughness (and set the color to pure white to avoid vignetting and noise)
3. add an image plane at one end of the cylinder, shade with an image node feeding an emission node
4. place the camera at one end of the cylinder, facing down the tube toward the image plane
5. select the cycles renderer, and set all the individual light paths to 0, except for glossy. increase the glossy count until the frame is filled
6. animate the image as desired (scale, rotation, position, shaders, etc)
7. export at 1 sample (so fast!)
Some hightlights:
1:15 - Modeling the kaleidoscope (stupid simple)
4:00 - Shading (emission for image, glossy for mirrors)
5:56 - Optimizing cycles for quicker render (render at 1 sample!)
8:25 - "My goodness!"
Yeah, it's longer than it needs to be, so sue me.
#b3d #kaleidoscope #blender