1 files changed, 31 insertions, 0 deletions
diff --git a/Assets/AmplifyShaderEditor/Plugins/EditorResources/Previews/Preview_VertexBinormalNode.shader b/Assets/AmplifyShaderEditor/Plugins/EditorResources/Previews/Preview_VertexBinormalNode.shader
new file mode 100644
index 00000000..f54cf44b
--- /dev/null
+++ b/Assets/AmplifyShaderEditor/Plugins/EditorResources/Previews/Preview_VertexBinormalNode.shader
@@ -0,0 +1,31 @@
+Shader "Hidden/VertexBinormalNode"
+{
+	SubShader
+	{
+		Pass
+		{
+			CGPROGRAM
+			#pragma vertex vert_img
+			#pragma fragment frag
+			#include "UnityCG.cginc"
+
+			float4 frag( v2f_img i ) : SV_Target
+			{
+				float2 xy = 2 * i.uv - 1;
+				float z = -sqrt(1-saturate(dot(xy,xy)));
+				float3 vertexPos = float3(xy, z);
+				float3 normal = normalize(vertexPos);
+				float3 worldNormal = UnityObjectToWorldNormal(normal);
+					
+				float3 tangent = normalize(float3( -z, xy.y*0.01, xy.x ));
+				float3 worldPos = mul(unity_ObjectToWorld, vertexPos).xyz;
+				float3 worldTangent = UnityObjectToWorldDir(tangent);
+				float tangentSign = -1;
+				float3 worldBinormal = normalize( cross(worldNormal, worldTangent) * tangentSign);
+					
+				return float4(worldBinormal, 1);
+			}
+			ENDCG
+		}
+	}
+}