BumpMap

Assets/VRM10_Samples/VRM10Viewer/Assets/TinyPbr.shadergraph

@@ -23,6 +23,12 @@
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@@ -107,6 +113,18 @@
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@@ -224,6 +242,20 @@
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@@ -238,6 +270,34 @@
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@@ -350,6 +410,20 @@
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@@ -483,6 +557,19 @@
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@@ -509,6 +596,12 @@
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 }
@@ -1100,6 +1193,29 @@
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@@ -1234,6 +1350,47 @@
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@@ -1342,6 +1499,81 @@
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@@ -1625,6 +1857,42 @@
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@@ -1649,6 +1917,21 @@
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@@ -1792,7 +2075,32 @@
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+}
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@@ -1978,6 +2286,29 @@
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+{
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+    "m_ObjectId": "7a258b7ee50f42959e7e5e1bd2c7631b",
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+}
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@@ -2030,6 +2361,19 @@
     "m_SerializedDescriptor": "VertexDescription.Tangent"
 }
 
+{
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+}
+
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@@ -2440,6 +2784,46 @@
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+}
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 {
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@@ -2569,6 +2953,36 @@
     "m_Labels": []
 }
 
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+    "m_ObjectId": "aeac528b6a2444518362cffca1be05ba",
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+}
+
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+}
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 {
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@@ -2605,6 +3019,42 @@
     }
 }
 
+{
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+    "m_ObjectId": "b83e5bff780742a79344a87ff879965a",
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+    "m_DrawState": {
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+        "m_Position": {
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+    "m_Slots": [
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+
 {
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@@ -2713,6 +3163,21 @@
     "m_BareResource": false
 }
 
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@@ -2755,7 +3220,7 @@
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 }
 
 {
@@ -2836,6 +3301,36 @@
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+    "m_Name": "BumpMap",
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+    "m_OverrideReferenceName": "",
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@@ -2976,6 +3471,21 @@
     "m_Labels": []
 }
 
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@@ -3131,6 +3641,34 @@
     "m_SerializedDescriptor": "VertexDescription.Position"
 }
 
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Assets/VRM10_Samples/VRM10Viewer/TinyPbrMaterialContext.cs

@@ -29,6 +29,14 @@ namespace UniVRM10.VRM10Viewer
         /// Texture2D.Blue = 1.0. The metalness
         /// </summary>
         private static readonly int MetallicRoughnessMapProp = Shader.PropertyToID("_MetallicRoughnessMap");
+        /// <summary>
+        /// float = 1.0
+        /// </summary>
+        private static readonly int BumpScaleProp = Shader.PropertyToID("_BumpScale");
+        /// <summary>
+        /// Texture2D = [0, 0, 1.0]
+        /// </summary>
+        private static readonly int BumpMapProp = Shader.PropertyToID("_BumpMap");
 
         public readonly Material Material;
         public TinyPbrMaterialContext(Material material)
@@ -86,5 +94,19 @@ namespace UniVRM10.VRM10Viewer
             get => Material.GetTexture(MetallicRoughnessMapProp);
             set => Material.SetTexture(MetallicRoughnessMapProp, value);
         }
+
+        public float BumpScale
+        {
+            get => Material.GetFloat(BumpScaleProp);
+            set => Material.SetFloat(BumpScaleProp, value);
+        }
+        public Texture BumpMap
+        {
+            get => Material.GetTexture(BumpMapProp);
+            set
+            {
+                Material.SetTexture(BumpMapProp, value);
+            }
+        }
     }
 }

Assets/VRM10_Samples/VRM10Viewer/TinyPbrMaterialDescriptorGenerator.cs

@@ -72,7 +72,7 @@ namespace UniVRM10.VRM10Viewer
             await ImportBaseColorAsync(data, src, context, getTextureAsync, awaitCaller);
             await ImportMetallicRoughnessAsync(data, src, context, getTextureAsync, awaitCaller);
             await ImportOcclusionAsync(data, src, context, getTextureAsync, awaitCaller);
-            // await ImportNormalAsync(data, src, context, getTextureAsync, awaitCaller);
+            await ImportNormalAsync(data, src, context, getTextureAsync, awaitCaller);
             // await ImportEmissionAsync(data, src, context, getTextureAsync, awaitCaller);
 
             // context.Validate();
@@ -130,5 +130,17 @@ namespace UniVRM10.VRM10Viewer
                 }
             }
         }
+
+        private static async Task ImportNormalAsync(GltfData data, glTFMaterial src, TinyPbrMaterialContext context, GetTextureAsyncFunc getTextureAsync, IAwaitCaller awaitCaller)
+        {
+            if (src.normalTexture is { index: >= 0 })
+            {
+                if (GltfPbrTextureImporter.TryNormalTexture(data, src, out _, out var desc))
+                {
+                    context.BumpMap = await getTextureAsync(desc, awaitCaller);
+                    context.BumpScale = src.normalTexture.scale;
+                }
+            }
+        }
     }
 }