From b82da95b5181ac8bbae38efb13e950d5e88a4caa Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Fri, 23 Oct 2020 13:08:43 +0800
Subject: =?UTF-8?q?*=E7=A7=BB=E5=8A=A8amplify=20shader=20editor=E5=88=B0th?=
 =?UTF-8?q?ird=20party=E7=9B=AE=E5=BD=95?=
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---
 .../Previews/Preview_VertexTangentNode.shader      | 31 ++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 Assets/ThirdParty/AmplifyShaderEditor/Plugins/EditorResources/Previews/Preview_VertexTangentNode.shader

(limited to 'Assets/ThirdParty/AmplifyShaderEditor/Plugins/EditorResources/Previews/Preview_VertexTangentNode.shader')

diff --git a/Assets/ThirdParty/AmplifyShaderEditor/Plugins/EditorResources/Previews/Preview_VertexTangentNode.shader b/Assets/ThirdParty/AmplifyShaderEditor/Plugins/EditorResources/Previews/Preview_VertexTangentNode.shader
new file mode 100644
index 00000000..3769192e
--- /dev/null
+++ b/Assets/ThirdParty/AmplifyShaderEditor/Plugins/EditorResources/Previews/Preview_VertexTangentNode.shader
@@ -0,0 +1,31 @@
+Shader "Hidden/VertexTangentNode"
+{
+	SubShader
+	{
+		Pass
+		{
+			CGPROGRAM
+			#pragma vertex vert_img
+			#pragma fragment frag
+			#include "UnityCG.cginc"
+
+			float4 frag( v2f_img i ) : SV_Target
+			{
+				float2 tp = 2 * i.uv - 1;
+				float tr = sqrt( dot(tp,tp) );
+				tr = saturate( tr );
+				//if ( tr < 1 ) {
+					float2 tuvs;
+					float f = ( 1 - sqrt( 1 - tr ) ) / tr;
+
+					float3 tangent = normalize(float3( (1-f)*2, tp.y*0.01, tp.x ));
+					return float4((tangent), 1);
+				//}
+				//else {
+				//	return 0;
+				//}
+			}
+			ENDCG
+		}
+	}
+}
-- 
cgit v1.1-26-g67d0