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What is a matcap and where is it located in blender 2.8?

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    $\begingroup$ This was already asked here today, did you try searching for it using the search bar? $\endgroup$ – Moog Dec 22 '19 at 23:14
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Matcap is a way of shading objects in the viewport.

It is located here, in the little dropdown box in the top right of the viewport.

matcap

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  • $\begingroup$ Thanks. I tried googling it but everything just said "new matcaps" but didn't really have anything for what it is. $\endgroup$ – j_brot422 Dec 22 '19 at 16:50
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    $\begingroup$ A matcap is basically a look-up table for the color at a specific normal direction in camera space. The sphere represents all the possible normal directions in the half sphere with positive z coordinates under orthographic projection. The image coordinate system is at the top left corner. The normal coordinate system is centered in the middle of the sphere. This means for each normal in the normal pass we can look up the color in the matcap by shifting and normalizing the coordinates. $\endgroup$ – Robert Gützkow Dec 22 '19 at 23:01

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