HDRenderPipeline: Add tile/scale uv control to emissive color map

ScriptableRenderPipeline/HDRenderPipeline/Material/LayeredLit/LayeredLit.shader

 
         [ToggleOff]  _EnableSpecularOcclusion("Enable specular occlusion", Float) = 0.0
 
-        _EmissiveColor("EmissiveColor", Color) = (0, 0, 0)
+        _EmissiveColor("EmissiveColor", Color) = (1, 1, 1)
         _EmissiveColorMap("EmissiveColorMap", 2D) = "white" {}
         _EmissiveIntensity("EmissiveIntensity", Float) = 0
         [ToggleOff] _AlbedoAffectEmissive("Albedo Affect Emissive", Float) = 0.0

ScriptableRenderPipeline/HDRenderPipeline/Material/LayeredLit/LayeredLitTessellation.shader

 
         [ToggleOff]  _EnableSpecularOcclusion("Enable specular occlusion", Float) = 0.0
 
-        _EmissiveColor("EmissiveColor", Color) = (0, 0, 0)
+        _EmissiveColor("EmissiveColor", Color) = (1, 1, 1)
         _EmissiveColorMap("EmissiveColorMap", 2D) = "white" {}
         _EmissiveIntensity("EmissiveIntensity", Float) = 0
         [ToggleOff] _AlbedoAffectEmissive("Albedo Affect Emissive", Float) = 0.0

ScriptableRenderPipeline/HDRenderPipeline/Material/Lit/Editor/LitUI.cs

             }
             EditorGUI.indentLevel++;
             m_MaterialEditor.TexturePropertySingleLine(Styles.emissiveText, emissiveColorMap, emissiveColor);
+            m_MaterialEditor.TextureScaleOffsetProperty(emissiveColorMap);
             m_MaterialEditor.ShaderProperty(emissiveIntensity, Styles.emissiveIntensityText);
             m_MaterialEditor.ShaderProperty(albedoAffectEmissive, Styles.albedoAffectEmissiveText);
             EditorGUI.indentLevel--;

ScriptableRenderPipeline/HDRenderPipeline/Material/Lit/Lit.shader

         // These option below will cause different compilation flag.
         [ToggleOff]  _EnableSpecularOcclusion("Enable specular occlusion", Float) = 0.0
 
-        _EmissiveColor("EmissiveColor", Color) = (0, 0, 0)
+        _EmissiveColor("EmissiveColor", Color) = (1, 1, 1)
         _EmissiveColorMap("EmissiveColorMap", 2D) = "white" {}
         _EmissiveIntensity("EmissiveIntensity", Float) = 0
         [ToggleOff] _AlbedoAffectEmissive("Albedo Affect Emissive", Float) = 0.0

ScriptableRenderPipeline/HDRenderPipeline/Material/Lit/LitData.hlsl

 
     builtinData.emissiveColor = _EmissiveColor * builtinData.emissiveIntensity * lerp(float3(1.0, 1.0, 1.0), surfaceData.baseColor.rgb, _AlbedoAffectEmissive);
 #ifdef _EMISSIVE_COLOR_MAP
-    builtinData.emissiveColor *= SAMPLE_TEXTURE2D(_EmissiveColorMap, sampler_EmissiveColorMap, input.texCoord0).rgb;
+    builtinData.emissiveColor *= SAMPLE_TEXTURE2D(_EmissiveColorMap, sampler_EmissiveColorMap, TRANSFORM_TEX(input.texCoord0, _EmissiveColorMap)).rgb;
 #endif
 
     builtinData.velocity = float2(0.0, 0.0);

ScriptableRenderPipeline/HDRenderPipeline/Material/Lit/LitProperties.hlsl

 // In our case we don't use such a mechanism but need to keep the code quiet. We declare the value and always enable it.
 // TODO: Fix the code in legacy unity so we can customize the beahvior for GI
 float3 _EmissionColor;
+float4 _EmissiveColorMap_ST;
 
 float4 _InvPrimScale; // Only XY are used
 

ScriptableRenderPipeline/HDRenderPipeline/Material/Lit/LitTessellation.shader

         // These option below will cause different compilation flag.
         [ToggleOff]  _EnableSpecularOcclusion("Enable specular occlusion", Float) = 0.0
 
-        _EmissiveColor("EmissiveColor", Color) = (0, 0, 0)
+        _EmissiveColor("EmissiveColor", Color) = (1, 1, 1)
         _EmissiveColorMap("EmissiveColorMap", 2D) = "white" {}
         _EmissiveIntensity("EmissiveIntensity", Float) = 0
         [ToggleOff] _AlbedoAffectEmissive("Albedo Affect Emissive", Float) = 0.0

ScriptableRenderPipeline/HDRenderPipeline/Material/Unlit/Editor/UnlitUI.cs

             m_MaterialEditor.TexturePropertySingleLine(Styles.colorText, colorMap, color);
 
             m_MaterialEditor.TexturePropertySingleLine(Styles.emissiveText, emissiveColorMap, emissiveColor);
+            m_MaterialEditor.TextureScaleOffsetProperty(emissiveColorMap);
             m_MaterialEditor.ShaderProperty(emissiveIntensity, Styles.emissiveIntensityText);
 
             var surfaceTypeValue = (SurfaceType)surfaceType.floatValue;

ScriptableRenderPipeline/HDRenderPipeline/Material/Unlit/Unlit.shader

         _UnlitColor("Color", Color) = (1,1,1,1)
         _UnlitColorMap("ColorMap", 2D) = "white" {}
 
-        _EmissiveColor("EmissiveColor", Color) = (0, 0, 0)
+        _EmissiveColor("EmissiveColor", Color) = (1, 1, 1)
         _EmissiveColorMap("EmissiveColorMap", 2D) = "white" {}
         _EmissiveIntensity("EmissiveIntensity", Float) = 0
 

ScriptableRenderPipeline/HDRenderPipeline/Material/Unlit/UnlitData.hlsl

     builtinData.emissiveIntensity = _EmissiveIntensity;
 
 #ifdef _EMISSIVE_COLOR_MAP
-    builtinData.emissiveColor = SAMPLE_TEXTURE2D(_EmissiveColorMap, sampler_EmissiveColorMap, input.texCoord0).rgb * _EmissiveColor * builtinData.emissiveIntensity;
+    builtinData.emissiveColor = SAMPLE_TEXTURE2D(_EmissiveColorMap, sampler_EmissiveColorMap, TRANSFORM_TEX(input.texCoord0, _EmissiveColorMap)).rgb * _EmissiveColor * builtinData.emissiveIntensity;
 #else
     builtinData.emissiveColor = _EmissiveColor * builtinData.emissiveIntensity;
 #endif

ScriptableRenderPipeline/HDRenderPipeline/Material/Unlit/UnlitProperties.hlsl

-float4  _UnlitColor;
+float4  _UnlitColor;
 TEXTURE2D(_UnlitColorMap);
 SAMPLER2D(sampler_UnlitColorMap);
 
 float3 _EmissiveColor;
 TEXTURE2D(_EmissiveColorMap);
 SAMPLER2D(sampler_EmissiveColorMap);
+float4 _EmissiveColorMap_ST;
+
 float _EmissiveIntensity;
 
 float _AlphaCutoff;