{"id":957,"date":"2012-08-06T02:45:24","date_gmt":"2012-08-05T23:45:24","guid":{"rendered":"http:\/\/unitycoder.com\/blog\/?p=957"},"modified":"2015-10-28T12:41:59","modified_gmt":"2015-10-28T09:41:59","slug":"dynamic-clouds-cloud-shadows-on-terrain","status":"publish","type":"post","link":"https:\/\/unitycoder.com\/blog\/2012\/08\/06\/dynamic-clouds-cloud-shadows-on-terrain\/","title":{"rendered":"Dynamic Clouds + Cloud Shadows on Terrain"},"content":{"rendered":"

\"\"<\/a><\/p>\n

Adding more stuff to the previous cloud test<\/a>, now with fake shadows. (scene works with unity indie)<\/p>\n

New features:<\/strong>
\n– Animated sky cloud shadows on terrain
\n– Bugs: Currently the clouds are not perfectly aligned..
\n– Shadow strength can be adjusted (now its 0.5 for the webplayer, 1 would give total black drop shadow for the cloud)
\n– I think it would need some cut-off value for the shadows, as almost transparent clouds still make quite visible shadows..<\/p>\n

Webplayer:
\n<\/strong>http:\/\/unitycoder.com\/upload\/demos\/AnimatedCloudsSkyDomeShadows1\/
\n<\/strong><\/a><\/p>\n

Get current test version source (2-in-1 : Animated clouds & Fake cloud shadows : works with indie):<\/strong>
\n(Direct download link arrives to your email!)
\n4eur [digishop id=”3″]<\/p>\n

*Note that this is “developer version”, the example scene “just works”, you might have to tweak it to make it work in your scenes.. (email me if you have problems)<\/em><\/p>\n

** Note#2: Doesnt work well with LINEAR mode (gamma is fine), also some problems with DEFERRED mode<\/p>\n

FIX for Unity5 (tested on beta11)<\/strong><\/p>\n

Open shader “CloudShadow3.shader”
\nFind line:
\nfloat2 uv_PerlinTex: TEXCOORD0;<\/p>\n

Comment it out:
\n\/\/float2 uv_PerlinTex: TEXCOORD0;<\/p>\n

Find line:
\nperturbValue = tex2D (_PerlinTex, half2(IN.uv_PerlinTex.x+translation,IN.uv_PerlinTex.y));<\/p>\n

Replace that line with:
\nperturbValue = tex2D (_PerlinTex, half2(i.uv_Main.x,i.uv_Main.y+translation));<\/p>\n

Find line:
\n_ShadowTex (“Cookie”, 2D) = “gray” { TexGen ObjectLinear }<\/p>\n

Replace with:
\n_ShadowTex (“Cookie”, 2D) = “gray”<\/p>\n

—<\/p>\n

Image#2:<\/strong>\u00a0Testing in unity5, after adding blend mode to see skybox \u00a0behind it “Blend OneMinusDstColor One \/\/ Soft Additive”
\n(see info about sun game window\u00a0problems here<\/a>)<\/p>\n

\"fake_clouds\"<\/p>\n","protected":false},"excerpt":{"rendered":"

Adding more stuff to the previous cloud test, now with fake shadows. (scene works with unity indie) New features: – Animated sky cloud shadows on terrain – Bugs: Currently the clouds are not perfectly aligned.. – Shadow strength can be adjusted (now its 0.5 for […]<\/p>\n","protected":false},"author":1,"featured_media":958,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[4,3],"tags":[270,267,63,266,269,205,40,255,254,268,168],"class_list":["post-957","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-demos","category-unity3d","tag-animated","tag-cloud","tag-clouds","tag-dome","tag-dynamic","tag-indie","tag-shadow","tag-sky","tag-skydome","tag-system","tag-terrain"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/unitycoder.com\/blog\/wp-content\/uploads\/2012\/08\/animated_clouds_skydome_shader_ground_shadows3.jpg?fit=680%2C493&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p1KTaT-fr","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/posts\/957","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/comments?post=957"}],"version-history":[{"count":14,"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/posts\/957\/revisions"}],"predecessor-version":[{"id":4027,"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/posts\/957\/revisions\/4027"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/media\/958"}],"wp:attachment":[{"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/media?parent=957"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/categories?post=957"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/tags?post=957"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}