diff --git a/Assets/UniGLTF/Runtime/UniGLTF/IO/MaterialIO/MaterialExporter.cs b/Assets/UniGLTF/Runtime/UniGLTF/IO/MaterialIO/MaterialExporter.cs
index 14a14cec36..551fc79576 100644
--- a/Assets/UniGLTF/Runtime/UniGLTF/IO/MaterialIO/MaterialExporter.cs
+++ b/Assets/UniGLTF/Runtime/UniGLTF/IO/MaterialIO/MaterialExporter.cs
@@ -206,7 +206,7 @@ static void Export_TextureTransform(Material m, glTFTextureInfo textureInfo, str
{
var offset = m.GetTextureOffset(propertyName);
var scale = m.GetTextureScale(propertyName);
- offset.y = 1.0f - offset.y - scale.y;
+ (scale, offset) = TextureTransform.VerticalFlipScaleOffset(scale, offset);
glTF_KHR_texture_transform.Serialize(textureInfo, (offset.x, offset.y), (scale.x, scale.y));
}
diff --git a/Assets/UniGLTF/Runtime/UniGLTF/IO/MaterialIO/TextureTransform.cs b/Assets/UniGLTF/Runtime/UniGLTF/IO/MaterialIO/TextureTransform.cs
new file mode 100644
index 0000000000..681f43e86a
--- /dev/null
+++ b/Assets/UniGLTF/Runtime/UniGLTF/IO/MaterialIO/TextureTransform.cs
@@ -0,0 +1,22 @@
+
+
+using UnityEngine;
+
+namespace UniGLTF
+{
+ public static class TextureTransform
+ {
+ ///
+ // UV Coordinate Conversion: glTF(top-left origin) to Unity(bottom-left origin)
+ /// https://github.com/vrm-c/UniVRM/issues/930
+ /// offset.y = 1.0f - offset.y - scale.y;
+ ///
+ ///
+ ///
+ ///
+ public static (Vector2 Scale, Vector2 Offset) VerticalFlipScaleOffset(Vector2 s, Vector2 o)
+ {
+ return (new Vector2(s.x, s.y), new Vector2(o.x, 1.0f - o.y - s.y));
+ }
+ }
+}
diff --git a/Assets/UniGLTF/Runtime/UniGLTF/IO/MaterialIO/TextureTransform.cs.meta b/Assets/UniGLTF/Runtime/UniGLTF/IO/MaterialIO/TextureTransform.cs.meta
new file mode 100644
index 0000000000..2b967208ca
--- /dev/null
+++ b/Assets/UniGLTF/Runtime/UniGLTF/IO/MaterialIO/TextureTransform.cs.meta
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: a652f0fdb4236434a9a64aa35a3cb44f
+MonoImporter:
+ externalObjects: {}
+ serializedVersion: 2
+ defaultReferences: []
+ executionOrder: 0
+ icon: {instanceID: 0}
+ userData:
+ assetBundleName:
+ assetBundleVariant:
diff --git a/Assets/UniGLTF/Runtime/UniGLTF/IO/TextureIO/GltfTextureImporter.cs b/Assets/UniGLTF/Runtime/UniGLTF/IO/TextureIO/GltfTextureImporter.cs
index 5cc96bc8cd..68a89cb872 100644
--- a/Assets/UniGLTF/Runtime/UniGLTF/IO/TextureIO/GltfTextureImporter.cs
+++ b/Assets/UniGLTF/Runtime/UniGLTF/IO/TextureIO/GltfTextureImporter.cs
@@ -118,9 +118,7 @@ public static (Vector2, Vector2) GetTextureOffsetAndScale(glTF_KHR_texture_trans
scale = new Vector2(textureTransform.scale[0], textureTransform.scale[1]);
}
- // UV Coordinate Conversion: glTF(top-left origin) to Unity(bottom-left origin)
- // Formula: https://github.com/vrm-c/UniVRM/issues/930
- offset.y = 1.0f - offset.y - scale.y;
+ (scale, offset) = TextureTransform.VerticalFlipScaleOffset(scale, offset);
}
return (offset, scale);
diff --git a/Assets/UniGLTF/Samples.meta b/Assets/UniGLTF/Samples.meta
new file mode 100644
index 0000000000..fd83f1e224
--- /dev/null
+++ b/Assets/UniGLTF/Samples.meta
@@ -0,0 +1,8 @@
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+folderAsset: yes
+DefaultImporter:
+ externalObjects: {}
+ userData:
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diff --git a/Assets/UniGLTF/Samples/ScreenSpace.meta b/Assets/UniGLTF/Samples/ScreenSpace.meta
new file mode 100644
index 0000000000..72aa1b85f9
--- /dev/null
+++ b/Assets/UniGLTF/Samples/ScreenSpace.meta
@@ -0,0 +1,8 @@
+fileFormatVersion: 2
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+folderAsset: yes
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diff --git a/Assets/UniGLTF/Samples/ScreenSpace/ScaleOffset.cs b/Assets/UniGLTF/Samples/ScreenSpace/ScaleOffset.cs
new file mode 100644
index 0000000000..a3fc728e5b
--- /dev/null
+++ b/Assets/UniGLTF/Samples/ScreenSpace/ScaleOffset.cs
@@ -0,0 +1,51 @@
+using UnityEngine;
+
+namespace UniGLTF.Samples
+{
+ ///
+ /// ScaleOffset の検証
+ ///
+ public class ScaleOffset : MonoBehaviour
+ {
+ [SerializeField]
+ public Vector2 Scale = Vector2.one;
+
+ [SerializeField]
+ public Vector2 Offset = Vector2.zero;
+
+ [SerializeField]
+ Material Unity;
+
+ [SerializeField]
+ Material Gltf;
+
+ void OnValidate()
+ {
+ Execute();
+ }
+
+ // Update is called once per frame
+ void Update()
+ {
+ Execute();
+ }
+
+ const string PROP_NAME = "_MainTex";
+
+ void Execute()
+ {
+ if (Unity == null || Gltf == null)
+ {
+ return;
+ }
+
+ Unity.SetTextureScale(PROP_NAME, Scale);
+ Unity.SetTextureOffset(PROP_NAME, Offset);
+
+ var (s, o) = TextureTransform.VerticalFlipScaleOffset(Scale, Offset);
+
+ Gltf.SetTextureScale(PROP_NAME, s);
+ Gltf.SetTextureOffset(PROP_NAME, o);
+ }
+ }
+}
\ No newline at end of file
diff --git a/Assets/UniGLTF/Samples/ScreenSpace/ScaleOffset.cs.meta b/Assets/UniGLTF/Samples/ScreenSpace/ScaleOffset.cs.meta
new file mode 100644
index 0000000000..a94d3cd105
--- /dev/null
+++ b/Assets/UniGLTF/Samples/ScreenSpace/ScaleOffset.cs.meta
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diff --git a/Assets/UniGLTF/Samples/ScreenSpace/ScreenSpace.unity b/Assets/UniGLTF/Samples/ScreenSpace/ScreenSpace.unity
new file mode 100644
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new file mode 100644
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new file mode 100644
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@@ -0,0 +1,77 @@
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new file mode 100644
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new file mode 100644
index 0000000000..bde183f5b9
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+++ b/Assets/UniGLTF/Samples/ScreenSpace/b.mat
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new file mode 100644
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new file mode 100644
index 0000000000..9bb3b50052
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diff --git a/Assets/UniGLTF/Samples/ScreenSpace/uv_color.shader b/Assets/UniGLTF/Samples/ScreenSpace/uv_color.shader
new file mode 100644
index 0000000000..3d644862ba
--- /dev/null
+++ b/Assets/UniGLTF/Samples/ScreenSpace/uv_color.shader
@@ -0,0 +1,58 @@
+Shader "Unlit/uv_color"
+{
+ Properties
+ {
+ _MainTex ("Texture", 2D) = "white" {}
+ }
+ SubShader
+ {
+ Tags { "RenderType"="Opaque" }
+ LOD 100
+
+ Pass
+ {
+ CGPROGRAM
+ #pragma vertex vert
+ #pragma fragment frag
+ // make fog work
+ #pragma multi_compile_fog
+
+ #include "UnityCG.cginc"
+
+ struct appdata
+ {
+ float4 vertex : POSITION;
+ float2 uv : TEXCOORD0;
+ };
+
+ struct v2f
+ {
+ float2 uv : TEXCOORD0;
+ UNITY_FOG_COORDS(1)
+ float4 vertex : SV_POSITION;
+ };
+
+ sampler2D _MainTex;
+ float4 _MainTex_ST;
+
+ v2f vert (appdata v)
+ {
+ v2f o;
+ o.vertex = UnityObjectToClipPos(v.vertex);
+ o.uv = TRANSFORM_TEX(v.uv, _MainTex);
+ UNITY_TRANSFER_FOG(o,o.vertex);
+ return o;
+ }
+
+ fixed4 frag (v2f i) : SV_Target
+ {
+ // sample the texture
+ fixed4 col = tex2D(_MainTex, i.uv);
+ // apply fog
+ UNITY_APPLY_FOG(i.fogCoord, col);
+ return col;
+ }
+ ENDCG
+ }
+ }
+}
diff --git a/Assets/UniGLTF/Samples/ScreenSpace/uv_color.shader.meta b/Assets/UniGLTF/Samples/ScreenSpace/uv_color.shader.meta
new file mode 100644
index 0000000000..18b7effaf4
--- /dev/null
+++ b/Assets/UniGLTF/Samples/ScreenSpace/uv_color.shader.meta
@@ -0,0 +1,9 @@
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diff --git a/Assets/VRM10/Runtime/IO/ExpressionExtensions.cs b/Assets/VRM10/Runtime/IO/ExpressionExtensions.cs
index e9cb156a28..efba8431b7 100644
--- a/Assets/VRM10/Runtime/IO/ExpressionExtensions.cs
+++ b/Assets/VRM10/Runtime/IO/ExpressionExtensions.cs
@@ -50,13 +50,15 @@ public static UniVRM10.MorphTargetBinding Build10(this MorphTargetBind bind, Gam
var binding = default(UniVRM10.MaterialUVBinding?);
if (material != null)
{
+ var (scale, offset) = UniGLTF.TextureTransform.VerticalFlipScaleOffset(new Vector2(bind.Scale[0], bind.Scale[1]), new Vector2(bind.Offset[0], bind.Offset[1]));
+
try
{
binding = new UniVRM10.MaterialUVBinding
{
MaterialName = material.name, // 名前で持つべき
- Scaling = new Vector2(bind.Scale[0], bind.Scale[1]),
- Offset = new Vector2(bind.Offset[0], bind.Offset[1]),
+ Scaling = scale,
+ Offset = offset,
};
}
catch (Exception)
diff --git a/Assets/VRM10/Runtime/IO/Vrm10Exporter.cs b/Assets/VRM10/Runtime/IO/Vrm10Exporter.cs
index 34e6ba50c8..87b8705019 100644
--- a/Assets/VRM10/Runtime/IO/Vrm10Exporter.cs
+++ b/Assets/VRM10/Runtime/IO/Vrm10Exporter.cs
@@ -550,11 +550,12 @@ UniGLTF.Extensions.VRMC_vrm.MaterialColorBind ExportMaterialColorBinding(Materia
UniGLTF.Extensions.VRMC_vrm.TextureTransformBind ExportTextureTransformBinding(MaterialUVBinding binding, Func getIndex)
{
+ var (scale, offset) = TextureTransform.VerticalFlipScaleOffset(binding.Scaling, binding.Offset);
return new UniGLTF.Extensions.VRMC_vrm.TextureTransformBind
{
Material = getIndex(binding.MaterialName),
- Offset = new float[] { binding.Offset.x, binding.Offset.y },
- Scale = new float[] { binding.Scaling.x, binding.Scaling.y },
+ Offset = new float[] { offset.x, offset.y },
+ Scale = new float[] { scale.x, scale.y },
};
}
diff --git a/Assets/VRM10/Runtime/Migration/MigrationVrmExpression.cs b/Assets/VRM10/Runtime/Migration/MigrationVrmExpression.cs
index 8fa929fcf9..3b305e9aef 100644
--- a/Assets/VRM10/Runtime/Migration/MigrationVrmExpression.cs
+++ b/Assets/VRM10/Runtime/Migration/MigrationVrmExpression.cs
@@ -113,30 +113,44 @@ static void ToMaterialColorBinds(UniGLTF.glTF gltf, JsonNode json, UniGLTF.Exten
var targetValue = x["targetValue"].ArrayItems().Select(y => y.GetSingle()).ToArray();
if (propertyName.EndsWith("_ST"))
{
- var scaling = new float[] { targetValue[0], targetValue[1] };
+ // VRM-0 は無変換
+ var (scale, offset) = UniGLTF.TextureTransform.VerticalFlipScaleOffset(
+ new UnityEngine.Vector2(targetValue[0], targetValue[1]),
+ new UnityEngine.Vector2(targetValue[2], targetValue[3]));
+
expression.TextureTransformBinds.Add(new UniGLTF.Extensions.VRMC_vrm.TextureTransformBind
{
Material = materialIndex,
- Scale = new float[] { targetValue[0], targetValue[1] },
- Offset = new float[] { targetValue[2], targetValue[3] }
+ Scale = new float[] { scale.x, scale.y },
+ Offset = new float[] { offset.x, offset.y }
});
}
else if (propertyName.EndsWith("_ST_S"))
{
+ // VRM-0 は無変換
+ var (scale, offset) = UniGLTF.TextureTransform.VerticalFlipScaleOffset(
+ new UnityEngine.Vector2(targetValue[0], 1),
+ new UnityEngine.Vector2(targetValue[2], 0));
+
expression.TextureTransformBinds.Add(new UniGLTF.Extensions.VRMC_vrm.TextureTransformBind
{
Material = materialIndex,
- Scale = new float[] { targetValue[0], 1 },
- Offset = new float[] { targetValue[2], 0 }
+ Scale = new float[] { scale.x, scale.y },
+ Offset = new float[] { offset.x, offset.y }
});
}
else if (propertyName.EndsWith("_ST_T"))
{
+ // VRM-0 は無変換
+ var (scale, offset) = UniGLTF.TextureTransform.VerticalFlipScaleOffset(
+ new UnityEngine.Vector2(1, targetValue[1]),
+ new UnityEngine.Vector2(0, targetValue[3]));
+
expression.TextureTransformBinds.Add(new UniGLTF.Extensions.VRMC_vrm.TextureTransformBind
{
Material = materialIndex,
- Scale = new float[] { 1, targetValue[1] },
- Offset = new float[] { 0, targetValue[3] }
+ Scale = new float[] { scale.x, scale.y },
+ Offset = new float[] { offset.x, offset.y }
});
}
else