update

libs/potree/resources/textures/LICENSE

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+
+
+
+brick_pavement.jpg:
+http://www.wildtextures.com/terms-of-use/
+==============================
+All textures at wildtextures.com are completely free for both, personal and commercial use, however you can’t:
+
+host textures for download on any other website or server,
+direct link to texture file from any other website ( however you can link to texture page ),
+sell them as a stock materials,
+==============================
+
+
+
+
+
+
+
+
+
+
+

libs/potree/resources/textures/matcap/blender_matcap_license.txt

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+These matcap images are licensed as CC0 or public domain.
+
+Thanks to the Blender community for contributing these matcaps.
+
+(Matcap images from /Blender/2.80/datafiles/studiolights/matcap/*")

libs/potree/resources/textures/skybox/skyboxsun25degtest.txt

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+http://reije081.home.xs4all.nl/skyboxes/

libs/potree/resources/textures/skybox2/README.TXT

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+THIS SKY WAS UPDATED AT THE 27TH
+THE ORIG HAD SOME ERRORS
+
+MIRAMAR
+high res 1024^2 environment map
+ships as TGA.
+
+
+By Jockum Skoglund aka hipshot
+hipshot@zfight.com
+www.zfight.com
+Stockholm, 2005 08 25
+
+
+Modify however you like, just cred me for my work, maybe link to my page.

libs/potree/resources/textures/skyboxsun25degtest.txt

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+http://reije081.home.xs4all.nl/skyboxes/