{"id":807711,"date":"2020-04-09T12:09:10","date_gmt":"2020-04-09T19:09:10","guid":{"rendered":"https:\/\/www.esri.com\/arcgis-blog\/?post_type=blog&#038;p=807711"},"modified":"2020-04-09T12:09:10","modified_gmt":"2020-04-09T19:09:10","slug":"multiscale-hillshade-how-to-hack-ambient-occlusion-and-terrain-curvature-in-arcgis-pro","status":"publish","type":"blog","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/mapping\/multiscale-hillshade-how-to-hack-ambient-occlusion-and-terrain-curvature-in-arcgis-pro","title":{"rendered":"Multiscale Hillshade: How to hack ambient occlusion and terrain curvature in ArcGIS Pro"},"author":6971,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"_searchwp_excluded":""},"categories":[22941],"tags":[26451,32321,24661,24401,342752],"industry":[],"product":[36561],"class_list":["post-807711","blog","type-blog","status-publish","format-standard","hentry","category-mapping","tag-cartography","tag-hillshade","tag-raster-functions","tag-terrain","tag-topographic","product-arcgis-pro"],"acf":{"short_description":"Let's dig not-very-deeply into our toolkit to see if we can hammer together a reasonably realistic ambient hillshade effect.","flexible_content":[{"acf_fc_layout":"content","content":"<p>Really realistic shading for a 3D-looking surface is hard. There are rigorous and awesome methods like ray shading and ambient occlusion and curvature. But those can be pretty slow and intensive. Let&#8217;s just see what we can get away with by making a few blurred versions of our input elevation surface and start hacking away at some scaled hillshades, slopes, and&#8230;hillshaded slopes. Yes. Get ready to live.<\/p>\n<p>Here is the video, and I&#8217;ll follow that with a summary of the major steps.<\/p>\n<p>&nbsp;<\/p>\n"},{"acf_fc_layout":"youtube","start_time":"0","end_time":"","youtube_video_url":"<iframe title=\"Multiscale Hillshade: How to hack ambient occlusion and terrain curvature in ArcGIS Pro\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/pFDLFldNj9c?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>"},{"acf_fc_layout":"content","content":"<h2>Cliff&#8217;s Notes version<\/h2>\n<p>This terrain surface is made from just one regular 30 meter NASA <a href=\"https:\/\/en.wikipedia.org\/wiki\/Shuttle_Radar_Topography_Mission\" target=\"_blank\" rel=\"noopener\">SRTM<\/a> elevation model of the Prescott, Arizona, area.\u00a0 Using the <a href=\"https:\/\/pro.arcgis.com\/en\/pro-app\/tool-reference\/spatial-analyst\/focal-statistics.htm\" target=\"_blank\" rel=\"noopener\">Focal Statistics<\/a> tool (requires Spatial Analyst extension) in <a href=\"https:\/\/www.esri.com\/en-us\/arcgis\/products\/arcgis-pro\/overview\" target=\"_blank\" rel=\"noopener\">ArcGIS Pro<\/a> I made three progressively blurrier (which is generalization as far as a DEM is concerned) versions&#8230;<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":808051,"id":808051,"title":"DEMs","filename":"DEMs.jpg","filesize":66344,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/DEMs.jpg","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/mapping\/multiscale-hillshade-how-to-hack-ambient-occlusion-and-terrain-curvature-in-arcgis-pro\/dems","alt":"","author":"6971","description":"","caption":"","name":"dems","status":"inherit","uploaded_to":807711,"date":"2020-04-09 18:44:43","modified":"2020-04-09 18:44:43","menu_order":0,"mime_type":"image\/jpeg","type":"image","subtype":"jpeg","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":1002,"height":1002,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/DEMs-213x200.jpg","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/DEMs.jpg","medium-width":261,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/DEMs.jpg","medium_large-width":768,"medium_large-height":768,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/DEMs.jpg","large-width":1002,"large-height":1002,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/DEMs.jpg","1536x1536-width":1002,"1536x1536-height":1002,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/DEMs.jpg","2048x2048-width":1002,"2048x2048-height":1002,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/DEMs-465x465.jpg","card_image-width":465,"card_image-height":465,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/DEMs.jpg","wide_image-width":1002,"wide_image-height":1002}},"image_position":"center","orientation":"horizontal","hyperlink":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/DEMs.jpg"},{"acf_fc_layout":"content","content":"<p>Then I created a traditional hillshade from each, progressively blurry, DEM. I gave them a color scheme of semi-transparent black for full-shade and fully transparent black for not-shade, and just stacked up all the layers on top of each other. The result is a combination of hillshade scales so that fine topographic details are visible, but they have the benefit of a more atmospheric darkening in the shaded areas of the large-order structures. A bit closer to real life than an impossibly crisp omniscient single-light-source hillshade.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":808091,"id":808091,"title":"Hillshades","filename":"Hillshades.jpg","filesize":270877,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Hillshades.jpg","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/mapping\/multiscale-hillshade-how-to-hack-ambient-occlusion-and-terrain-curvature-in-arcgis-pro\/hillshades","alt":"","author":"6971","description":"","caption":"","name":"hillshades","status":"inherit","uploaded_to":807711,"date":"2020-04-09 18:47:39","modified":"2020-04-09 18:47:39","menu_order":0,"mime_type":"image\/jpeg","type":"image","subtype":"jpeg","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":1000,"height":1000,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Hillshades-213x200.jpg","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Hillshades.jpg","medium-width":261,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Hillshades.jpg","medium_large-width":768,"medium_large-height":768,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Hillshades.jpg","large-width":1000,"large-height":1000,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Hillshades.jpg","1536x1536-width":1000,"1536x1536-height":1000,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Hillshades.jpg","2048x2048-width":1000,"2048x2048-height":1000,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Hillshades-465x465.jpg","card_image-width":465,"card_image-height":465,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Hillshades.jpg","wide_image-width":1000,"wide_image-height":1000}},"image_position":"center","orientation":"horizontal","hyperlink":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Hillshades.jpg"},{"acf_fc_layout":"content","content":"<p>Next I applied a slope function to the DEMs and colored them so that the steep areas were dark and the flat areas were transparent. It&#8217;s a really nice sort of ghostly effect. This is like hillshade when there is zero direct light and sort of reminds me of what a fully ambiently-lit undersea terrain would look like.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":808111,"id":808111,"title":"Slopes","filename":"Slopes.jpg","filesize":287236,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Slopes.jpg","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/mapping\/multiscale-hillshade-how-to-hack-ambient-occlusion-and-terrain-curvature-in-arcgis-pro\/slopes","alt":"","author":"6971","description":"","caption":"","name":"slopes","status":"inherit","uploaded_to":807711,"date":"2020-04-09 18:50:37","modified":"2020-04-09 18:50:37","menu_order":0,"mime_type":"image\/jpeg","type":"image","subtype":"jpeg","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":1000,"height":1000,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Slopes-213x200.jpg","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Slopes.jpg","medium-width":261,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Slopes.jpg","medium_large-width":768,"medium_large-height":768,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Slopes.jpg","large-width":1000,"large-height":1000,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Slopes.jpg","1536x1536-width":1000,"1536x1536-height":1000,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Slopes.jpg","2048x2048-width":1000,"2048x2048-height":1000,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Slopes-465x465.jpg","card_image-width":465,"card_image-height":465,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Slopes.jpg","wide_image-width":1000,"wide_image-height":1000}},"image_position":"center","orientation":"horizontal","hyperlink":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Slopes.jpg"},{"acf_fc_layout":"content","content":"<p>So to bring back a little bit of that direct-sunlight effect, I created a traditional hillshade and only painted the brightest areas in white then quickly faded to fully-transparent white. This re-introduces a sense of a directional light source. Like in real life.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":808121,"id":808121,"title":"Highlights","filename":"Highlights.jpg","filesize":301087,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Highlights.jpg","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/mapping\/multiscale-hillshade-how-to-hack-ambient-occlusion-and-terrain-curvature-in-arcgis-pro\/highlights","alt":"","author":"6971","description":"","caption":"","name":"highlights","status":"inherit","uploaded_to":807711,"date":"2020-04-09 18:52:12","modified":"2020-04-09 18:52:12","menu_order":0,"mime_type":"image\/jpeg","type":"image","subtype":"jpeg","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":1000,"height":1000,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Highlights-213x200.jpg","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Highlights.jpg","medium-width":261,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Highlights.jpg","medium_large-width":768,"medium_large-height":768,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Highlights.jpg","large-width":1000,"large-height":1000,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Highlights.jpg","1536x1536-width":1000,"1536x1536-height":1000,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Highlights.jpg","2048x2048-width":1000,"2048x2048-height":1000,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Highlights-465x465.jpg","card_image-width":465,"card_image-height":465,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Highlights.jpg","wide_image-width":1000,"wide_image-height":1000}},"image_position":"center","orientation":"horizontal","hyperlink":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Highlights.jpg"},{"acf_fc_layout":"content","content":"<p>One of the drawbacks of stacking up hillshades and slope-shades generated for different scales is that you get an inadvertent rounding-off of the terrain. Like the earth was scrubbed with sandpaper. The crisp edges or plateaus and river channels and terraced structures have lost their sharpness. By applying a&#8230;wait for it&#8230;hillshade to the slope (yes) you can re-introduce some crispness to the terrain. It is a bit like an edge detection or a curvature function. And I get to choose in which direction I highlight curves because hillshade has an inherent direction. That group of layers looks like this&#8230;<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":808141,"id":808141,"title":"Curvature","filename":"Curvature.jpg","filesize":307608,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Curvature.jpg","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/mapping\/multiscale-hillshade-how-to-hack-ambient-occlusion-and-terrain-curvature-in-arcgis-pro\/curvature","alt":"","author":"6971","description":"","caption":"","name":"curvature","status":"inherit","uploaded_to":807711,"date":"2020-04-09 18:56:10","modified":"2020-04-09 18:56:10","menu_order":0,"mime_type":"image\/jpeg","type":"image","subtype":"jpeg","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":1000,"height":1000,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Curvature-213x200.jpg","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Curvature.jpg","medium-width":261,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Curvature.jpg","medium_large-width":768,"medium_large-height":768,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Curvature.jpg","large-width":1000,"large-height":1000,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Curvature.jpg","1536x1536-width":1000,"1536x1536-height":1000,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Curvature.jpg","2048x2048-width":1000,"2048x2048-height":1000,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Curvature-465x465.jpg","card_image-width":465,"card_image-height":465,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Curvature.jpg","wide_image-width":1000,"wide_image-height":1000}},"image_position":"center","orientation":"horizontal","hyperlink":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Curvature.jpg"},{"acf_fc_layout":"content","content":"<p>Lastly, to create a sense of scattered shade in lower elevations and river valleys, I drag the original DEM up to the top and apply a gradient so that lower elevations are semi-transparent black and quickly fade into fully transparent black. Low-lying areas now have a true-to-life ambient darkening.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":808151,"id":808151,"title":"ElevationShade","filename":"ElevationShade.jpg","filesize":292781,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/ElevationShade.jpg","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/mapping\/multiscale-hillshade-how-to-hack-ambient-occlusion-and-terrain-curvature-in-arcgis-pro\/elevationshade","alt":"","author":"6971","description":"","caption":"","name":"elevationshade","status":"inherit","uploaded_to":807711,"date":"2020-04-09 18:58:15","modified":"2020-04-09 18:58:15","menu_order":0,"mime_type":"image\/jpeg","type":"image","subtype":"jpeg","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":1000,"height":1000,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/ElevationShade-213x200.jpg","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/ElevationShade.jpg","medium-width":261,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/ElevationShade.jpg","medium_large-width":768,"medium_large-height":768,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/ElevationShade.jpg","large-width":1000,"large-height":1000,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/ElevationShade.jpg","1536x1536-width":1000,"1536x1536-height":1000,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/ElevationShade.jpg","2048x2048-width":1000,"2048x2048-height":1000,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/ElevationShade-465x465.jpg","card_image-width":465,"card_image-height":465,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/ElevationShade.jpg","wide_image-width":1000,"wide_image-height":1000}},"image_position":"center","orientation":"horizontal","hyperlink":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/ElevationShade.jpg"},{"acf_fc_layout":"content","content":"<p>When everything is stacked up together, they combine to create a topographic surface that sort of mimics ambient light and shadow. Which also looks pretty cool.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":808181,"id":808181,"title":"PrescottAmbientHillshade","filename":"PrescottAmbientHillshade.jpg","filesize":877100,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/PrescottAmbientHillshade.jpg","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-pro\/mapping\/multiscale-hillshade-how-to-hack-ambient-occlusion-and-terrain-curvature-in-arcgis-pro\/prescottambienthillshade","alt":"","author":"6971","description":"","caption":"","name":"prescottambienthillshade","status":"inherit","uploaded_to":807711,"date":"2020-04-09 19:02:20","modified":"2020-04-09 19:02:20","menu_order":0,"mime_type":"image\/jpeg","type":"image","subtype":"jpeg","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":1921,"height":2485,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/PrescottAmbientHillshade-213x200.jpg","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/PrescottAmbientHillshade.jpg","medium-width":202,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/PrescottAmbientHillshade.jpg","medium_large-width":768,"medium_large-height":993,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/PrescottAmbientHillshade.jpg","large-width":835,"large-height":1080,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/PrescottAmbientHillshade-1187x1536.jpg","1536x1536-width":1187,"1536x1536-height":1536,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/PrescottAmbientHillshade-1583x2048.jpg","2048x2048-width":1583,"2048x2048-height":2048,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/PrescottAmbientHillshade-359x465.jpg","card_image-width":359,"card_image-height":465,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/PrescottAmbientHillshade-835x1080.jpg","wide_image-width":835,"wide_image-height":1080}},"image_position":"center","orientation":"horizontal","hyperlink":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/PrescottAmbientHillshade.jpg"},{"acf_fc_layout":"content","content":"<p>Happy Hillshading! <a href=\"https:\/\/twitter.com\/John_M_Nelson\" target=\"_blank\" rel=\"noopener\">John<\/a><\/p>\n"}],"authors":[{"ID":6971,"user_firstname":"John","user_lastname":"Nelson","nickname":"John Nelson","user_nicename":"j_nelson","display_name":"John Nelson","user_email":"John_Nelson@esri.com","user_url":"http:\/\/www.adventuresinmapping.com","user_registered":"2018-03-02 00:19:05","user_description":"I have far too much fun looking for ways to understand and present data visually, hopefully driving product strategy and engaging users. I work in the ArcGIS Living Atlas team at Esri, pushing and pulling data in all sorts of absurd ways and then sharing the process. I also design user experiences for maps and apps.\r\nWhen I'm not doing those things, I'm chasing around toddlers and wrangling chickens, and generally getting into other ad-hoc adventures. Life is good.\r\nYou might also like these Styles for ArcGIS Pro: esriurl.com\/nelsonstyles","user_avatar":"<img data-del=\"avatar\" src='https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2018\/04\/Profile.jpg' class='avatar pp-user-avatar avatar-96 photo ' height='96' width='96'\/>"}],"related_articles":"","card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Multiscale_Card.jpg","wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/Multiscale_Banner.jpg"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.9 (Yoast SEO v25.9) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Multiscale Hillshade: How to hack ambient occlusion and terrain curvature in ArcGIS Pro<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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