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GetOrCreateBaseTexture

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ousttrue
2021-03-23 18:52:53 +09:00
parent 8aa450d3ac
commit 972d3ce085
2 changed files with 48 additions and 49 deletions
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45
Assets/UniGLTF/Runtime/UniGLTF/IO/TextureIO/GltfTextureLoader.cs
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@@ -6,50 +6,5 @@ namespace UniGLTF
{
public static class GltfTextureLoader
{
static Byte[] ToArray(ArraySegment<byte> bytes)
{
if (bytes.Array == null)
{
return new byte[] { };
}
else if (bytes.Offset == 0 && bytes.Count == bytes.Array.Length)
{
return bytes.Array;
}
else
{
Byte[] result = new byte[bytes.Count];
Buffer.BlockCopy(bytes.Array, bytes.Offset, result, 0, result.Length);
return result;
}
}
public static async Task<Texture2D> LoadTextureAsync(IAwaitCaller awaitCaller, glTF gltf, IStorage storage, int textureIndex)
{
var imageBytes = await awaitCaller.Run(() =>
{
var imageIndex = gltf.textures[textureIndex].source;
var segments = gltf.GetImageBytes(storage, imageIndex);
return ToArray(segments);
});
//
// texture from image(png etc) bytes
//
var colorSpace = gltf.GetColorSpace(textureIndex);
var texture = new Texture2D(2, 2, TextureFormat.ARGB32, false, colorSpace == RenderTextureReadWrite.Linear);
texture.name = gltf.textures[textureIndex].name;
if (imageBytes != null)
{
texture.LoadImage(imageBytes);
}
var sampler = gltf.GetSamplerFromTextureIndex(textureIndex);
if (sampler != null)
{
TextureSamplerUtil.SetSampler(texture, sampler);
}
return texture;
}
}
}

52
Assets/UniGLTF/Runtime/UniGLTF/IO/TextureIO/TextureFactory.cs
View File

@@ -133,15 +133,59 @@ namespace UniGLTF
public IEnumerable<TextureLoadInfo> Textures => m_textureCache.Values;
static Byte[] ToArray(ArraySegment<byte> bytes)
{
if (bytes.Array == null)
{
return new byte[] { };
}
else if (bytes.Offset == 0 && bytes.Count == bytes.Array.Length)
{
return bytes.Array;
}
else
{
Byte[] result = new byte[bytes.Count];
Buffer.BlockCopy(bytes.Array, bytes.Offset, result, 0, result.Length);
return result;
}
}
async Task<TextureLoadInfo> GetOrCreateBaseTexture(IAwaitCaller awaitCaller, glTF gltf, int textureIndex, bool used)
{
var name = gltf.textures[textureIndex].name;
if (!m_textureCache.TryGetValue(name, out TextureLoadInfo cacheInfo))
if (m_textureCache.TryGetValue(name, out TextureLoadInfo cacheInfo))
{
var texture = await GltfTextureLoader.LoadTextureAsync(awaitCaller, m_gltf, m_storage, textureIndex);
cacheInfo = new TextureLoadInfo(texture, used, false);
m_textureCache.Add(name, cacheInfo);
return cacheInfo;
}
// not found. load new
var imageBytes = await awaitCaller.Run(() =>
{
var imageIndex = gltf.textures[textureIndex].source;
var segments = gltf.GetImageBytes(m_storage, imageIndex);
return ToArray(segments);
});
//
// texture from image(png etc) bytes
//
var colorSpace = gltf.GetColorSpace(textureIndex);
var texture = new Texture2D(2, 2, TextureFormat.ARGB32, false, colorSpace == RenderTextureReadWrite.Linear);
texture.name = gltf.textures[textureIndex].name;
if (imageBytes != null)
{
texture.LoadImage(imageBytes);
}
var sampler = gltf.GetSamplerFromTextureIndex(textureIndex);
if (sampler != null)
{
TextureSamplerUtil.SetSampler(texture, sampler);
}
cacheInfo = new TextureLoadInfo(texture, used, false);
m_textureCache.Add(name, cacheInfo);
return cacheInfo;
}