![\"leap_motion_threshold_shader_unity\"](\"https:\/\/i0.wp.com\/unitycoder.com\/blog\/wp-content\/uploads\/2015\/02\/leap_motion_threshold_shader_unity.jpg?resize=680%2C463\")
<\/p>\n<\/p>\n
You can add adjustable threshold to Leap Motion passthrough shader, so that your hands are more visible (less transparent) in the overlay image.<\/p>\n
TUTORIAL<\/strong> – Save, now test the scene and adjust threshold value from inspector if needed (try adjusting material color value also).<\/p>\n Notes:<\/strong> More info:<\/strong> <\/p>\n","protected":false},"excerpt":{"rendered":" You can add adjustable threshold to Leap Motion passthrough shader, so that your hands are more visible (less transparent) in the overlay image. TUTORIAL – Download unity examples package, https:\/\/developer.leapmotion.com\/downloads\/unity – Import package to Unity – Open “PassthroughWithTracking.scene” – Select “Quad” from hierarchy – Enable […]<\/p>\n","protected":false},"author":1,"featured_media":3614,"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":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[420,3],"tags":[704,14,705,383],"class_list":["post-3613","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tutorials","category-unity3d","tag-leap-motion","tag-shader","tag-threshold","tag-tutorial"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/unitycoder.com\/blog\/wp-content\/uploads\/2015\/02\/leap_motion_threshold_shader_unity.jpg?fit=680%2C463&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p1KTaT-Wh","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/posts\/3613","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=3613"}],"version-history":[{"count":9,"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/posts\/3613\/revisions"}],"predecessor-version":[{"id":3623,"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/posts\/3613\/revisions\/3623"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/media\/3614"}],"wp:attachment":[{"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/media?parent=3613"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/categories?post=3613"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/tags?post=3613"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n– Download unity examples package, https:\/\/developer.leapmotion.com\/downloads\/unity<\/a>
\n– Import package to Unity
\n– Open “PassthroughWithTracking.scene”
\n– Select “Quad” from hierarchy
\n– Enable [x] Overlay image (in LeapImageRetriever script component)
\n– Edit shader file: “LeapIRUndistorted_foreground.shader”
\nAdd these customisations to the shader:<\/p>\n\r\n\r\n\/\/ FIND LINE\r\n_MainTex ("Base (A=Opacity)", 2D) = ""\r\n\/\/ INSERT AFTER IT\r\n_Threshold ("Threshold", Float) = 0.1\r\n\r\n\/\/ FIND LINE\r\nuniform float4 _Color;\r\n\/\/ INSERT AFTER IT\r\nuniform float _Threshold;\r\n\r\n\/\/ FIND LINE\r\ncolor.a *= a;\r\n\/\/ REPLACE WITH\r\ncolor = float4(a,a,a,step(_Threshold,a)) * _Color;\r\n\r\n<\/pre>\n
\n– LeapImageRetriever script re-assigns the shader at start, so your inspector threshold value might resets to default..?
\n– Adjust material color for skincolor in the inspector<\/p>\n
\n– step() : http:\/\/http.developer.nvidia.com\/Cg\/step.html<\/a>
\n– Leap+Oculus : https:\/\/www.leapmotion.com\/product\/vr<\/a>
\n– [x] Allow images must be enabled in Leap Control panel : https:\/\/developer.leapmotion.com\/gallery\/oculus-passthrough\u00a0<\/a><\/p>\n