{"id":3088,"date":"2014-07-15T16:55:16","date_gmt":"2014-07-15T13:55:16","guid":{"rendered":"http:\/\/unitycoder.com\/blog\/?p=3088"},"modified":"2014-07-24T04:23:25","modified_gmt":"2014-07-24T01:23:25","slug":"unity-indie-soft-shadows-directional-light","status":"publish","type":"post","link":"https:\/\/unitycoder.com\/blog\/2014\/07\/15\/unity-indie-soft-shadows-directional-light\/","title":{"rendered":"Unity indie: Soft Shadows (Directional Light)"},"content":{"rendered":"

\"fake_soft_shadows_unity_indie_1\"<\/p>\n

Using Unity Indie, modified directional hard light shadows.<\/p>\n

Forum thread:<\/strong>
\n– http:\/\/forum.unity3d.com\/threads\/free-directional-light-soft-shadow-unity-indie.257432\/<\/a><\/p>\n

 <\/p>\n

How to:<\/strong>
\n– Download builtin shader: http:\/\/unity3d.com\/unity\/download\/archive<\/a>
\n– copied UnityCG, UnityShaderVariables, HLSLSupport, AutoLight to assets folder
\n– renamed these as: UnityCG2, \u200b\u200bUnityShaderVariables2, \u200b\u200bHLSLSupport2\u200b\u200b
\n– created new shader file (that default diffuse)
\n– add this line to shader: #include “UnityCG2.cginc”
\n\u200b\u200b- modified it to use: #include “UnityShaderVariables2.cginc”\u200b\u200b
\n– modified that to use: #include “HLSLSupport2.cginc”
\n– then modified \u200b\u200bAutoLight for the soft shadow\u200b\u200b (basically changed all returns to 1, until founded which one it is, then added shadow “blur” there)
\n– *** Seems that you only need the AutoLight.cginc (in the same folder as the shader, others were not needed)<\/p>\n

Sources:<\/strong>
\nhttps:\/\/github.com\/unitycoder\/IndieSoftShadow<\/a> **there are no comments or tutorial yet, check AutoLight.cginc for the modifications..<\/p>\n

Webplayer demo:<\/strong>
\nhttp:\/\/unitycoder.com\/upload\/demos\/HardShadowSoftener\/<\/a><\/p>\n

—<\/p>\n

v2:\u00a0<\/strong> Some progress on getting custom shadows, without any cginc modifications, but something is still broken..<\/p>\n

\r\n\r\nShader "Custom\/IndieShadow1" {\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Properties {\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 _Color ("Main Color", Color) = (1,1,1,0.5)\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 _MainTex ("Texture", 2D) = "white" { }\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 SubShader {\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Pass {\r\n\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 CGPROGRAM\r\n\/\/ Upgrade NOTE: excluded shader from DX11 and Xbox360; has structs without semantics (struct v2f members shadowCoord)\r\n#pragma exclude_renderers d3d11 xbox360\r\n\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #pragma vertex vert\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #pragma fragment frag\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #include "UnityCG.cginc"\r\n\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 float4 _Color;\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 sampler2D _MainTex;\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 sampler2D _ShadowMapTexture;\r\n\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 struct v2f {\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 float4 pos : SV_POSITION;\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 float2 uv : TEXCOORD0;\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 float4 shadowCoord;\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 };\r\n\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 float4 _MainTex_ST;\r\n\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 v2f vert (appdata_base v)\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 {\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 v2f o;\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 o.pos = mul (UNITY_MATRIX_MVP, v.vertex);\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 o.uv = TRANSFORM_TEX (v.texcoord, _MainTex);\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/ FIXME: problem could be here?\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 o.shadowCoord =\u00a0 mul( unity_World2Shadow[0], mul( _Object2World, v.vertex ) );\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return o;\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }\r\n\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 half4 frag (v2f i) : COLOR\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 {\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 half4 texcol = tex2D (_MainTex, i.uv);\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/ Hard Shadow\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0fixed shadow = tex2D(_ShadowMapTexture, i.shadowCoord.xyz).r;\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0shadow = _LightShadowData.r + shadow * (1-_LightShadowData.r);\u00a0\u00a0 \u00a0\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return texcol * _Color * shadow;\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ENDCG\r\n\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Fallback "VertexLit"\r\n\u00a0\u00a0\u00a0 }\r\n\r\n<\/pre>\n
 <\/p>\n
 <\/p>\n
—<\/p>\n
Image#2:<\/strong> closeup<\/p>\n
\"fake_soft_shadows_unity_indie_2\"<\/p>\n
—<\/p>\n
Image#3:<\/strong> Inverted shadow (shadow is light), could be useful for some effects?<\/p>\n
\"inverted_shadow_cast_light_unity_3\"<\/p>\n
—<\/p>\n
Image#4: Custom shader with inline unitySampleShadow(), without using autolight.inc..currently only works from certain angles..<\/p>\n
\"custom_shadow_shader_unity1\"<\/p>\n","protected":false},"excerpt":{"rendered":"
Using Unity Indie, modified directional hard light shadows. Forum thread: – http:\/\/forum.unity3d.com\/threads\/free-directional-light-soft-shadow-unity-indie.257432\/   How to: – Download builtin shader: http:\/\/unity3d.com\/unity\/download\/archive – copied UnityCG, UnityShaderVariables, HLSLSupport, AutoLight to assets folder – renamed these as: UnityCG2, \u200b\u200bUnityShaderVariables2, \u200b\u200bHLSLSupport2\u200b\u200b – created new shader file (that default diffuse) – […]<\/p>\n","protected":false},"author":1,"featured_media":3089,"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":[13,3],"tags":[160,644,7,645,14,40,385],"class_list":["post-3088","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-shaders","category-unity3d","tag-blur","tag-directional","tag-fake","tag-hard","tag-shader","tag-shadow","tag-soft"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/unitycoder.com\/blog\/wp-content\/uploads\/2014\/07\/fake_soft_shadows_unity_indie_1.jpg?fit=680%2C480&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p1KTaT-NO","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/posts\/3088","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=3088"}],"version-history":[{"count":14,"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/posts\/3088\/revisions"}],"predecessor-version":[{"id":3124,"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/posts\/3088\/revisions\/3124"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/media\/3089"}],"wp:attachment":[{"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/media?parent=3088"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/categories?post=3088"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/tags?post=3088"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}