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GetTextureOffsetAndScale can get from transform ext object.

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This commit is contained in:
Masataka SUMI 2021-05-07 21:19:38 +09:00
parent db336970c9
commit 877d611216
1 changed files with 18 additions and 5 deletions
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23
Assets/UniGLTF/Runtime/UniGLTF/IO/MaterialIO/GltfMaterialImporter.cs
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@ -53,21 +53,34 @@ namespace UniGLTF
public static (Vector2, Vector2) GetTextureOffsetAndScale(glTFTextureInfo textureInfo)
{
Vector2 offset = new Vector2(0, 0);
Vector2 scale = new Vector2(1, 1);
if (glTF_KHR_texture_transform.TryGet(textureInfo, out glTF_KHR_texture_transform textureTransform))
if (glTF_KHR_texture_transform.TryGet(textureInfo, out var textureTransform))
{
return GetTextureOffsetAndScale(textureTransform);
}
return (new Vector2(0, 0), new Vector2(1, 1));
}
public static (Vector2, Vector2) GetTextureOffsetAndScale(glTF_KHR_texture_transform textureTransform)
{
var offset = new Vector2(0, 0);
var scale = new Vector2(1, 1);
if (textureTransform != null)
{
if (textureTransform.offset != null && textureTransform.offset.Length == 2)
{
offset = new Vector2(textureTransform.offset[0], textureTransform.offset[1]);
}
if (textureTransform.scale != null && textureTransform.scale.Length == 2)
{
scale = new Vector2(textureTransform.scale[0], textureTransform.scale[1]);
}
offset.y = (offset.y + scale.y - 1.0f) * -1.0f;
// Coordinate Conversion: GL (top-left origin) to DX (bottom-left origin)
offset.y = 1.0f - offset.y - scale.y;
}
return (offset, scale);
}