private static SharedModelResources CreateSharedResources(LoadedModelResources loadedResources)
{
var sharedResources = new SharedModelResources();
sharedResources.Textures = new TextureView[loadedResources.Textures.Length];
for (var textureId = 0; textureId < loadedResources.Textures.Length; textureId++)
{
var texturePath = loadedResources.Textures[textureId];
if (string.IsNullOrEmpty(texturePath))
{
var texture = TextureLoader.GetDummyTexture(GraphicsProvider.GraphicsDevice, GraphicsProvider.ResourceFactory);
sharedResources.Textures[textureId] = GraphicsProvider.ResourceFactory.CreateTextureView(texture);
}
else
{
if (_cachedTextures.TryGetValue(texturePath, out var textureView))
{
sharedResources.Textures[textureId] = textureView;
}
else
{
using (var textureStream = GraphicsProvider.Path2TextureStream(texturePath))
{
if (textureStream is null)
{
throw new FileNotFoundException(texturePath);
}
var texture = TextureLoader.LoadTexture(GraphicsProvider.GraphicsDevice, GraphicsProvider.ResourceFactory, textureStream);
textureView = GraphicsProvider.ResourceFactory.CreateTextureView(texture);
sharedResources.Textures[textureId] = textureView;
if (!string.IsNullOrEmpty(texturePath))
{
_cachedTextures.Add(texturePath, textureView);
}
}
}
}
}
sharedResources.VertexBuffers = new DeviceBuffer[loadedResources.GeosetCount];
sharedResources.IndexBuffers = new DeviceBuffer[loadedResources.GeosetCount];
for (var geoset = 0; geoset < loadedResources.GeosetCount; geoset++)
{
sharedResources.VertexBuffers[geoset] = GraphicsProvider.ResourceFactory.CreateBuffer(new BufferDescription(
(uint)loadedResources.Vertices[geoset].Length * _animatedVertexByteSize, BufferUsage.VertexBuffer));
GraphicsProvider.GraphicsDevice.UpdateBuffer(sharedResources.VertexBuffers[geoset], 0, loadedResources.Vertices[geoset]);
sharedResources.IndexBuffers[geoset] = GraphicsProvider.ResourceFactory.CreateBuffer(new BufferDescription(
loadedResources.IndexCounts[geoset] * _ushortByteSize, BufferUsage.IndexBuffer));
GraphicsProvider.GraphicsDevice.UpdateBuffer(sharedResources.IndexBuffers[geoset], 0, loadedResources.Indices[geoset]);
}
return(sharedResources);
}
private void CreateResources(LoadedModelResources?modelResources, string?modelPath)
{
var isModelCached = _cachedResources.TryGetValue(modelPath ?? string.Empty, out var cachedResources);
if (isModelCached)
{
_loadedResources = cachedResources.LoadedResources;
_sharedResources = cachedResources.SharedResources;
}
else
{
if (modelResources is null)
{
using (var modelStream = GraphicsProvider.Path2ModelStream(modelPath))
{
if (modelStream is null)
{
throw new FileNotFoundException(modelPath);
}
_loadedResources = ModelLoader.LoadModel(modelStream);
}
}
else
{
_loadedResources = modelResources;
}
_sharedResources = CreateSharedResources(_loadedResources);
if (!string.IsNullOrEmpty(modelPath))
{
_cachedResources.Add(modelPath, new CachedModelResources
{
LoadedResources = _loadedResources,
SharedResources = _sharedResources,
});
}
}
_instanceResources = CreateInstanceResources();
}
private void CreateResources(LoadedModelResources?modelResources, string?modelPath)
{
var isModelCached = _cachedResources.TryGetValue(modelPath ?? string.Empty, out var cachedResources);
if (isModelCached)
{
_loadedResources = cachedResources.LoadedResources;
_sharedResources = cachedResources.SharedResources;
_batch = _modelBatches[cachedResources];
}
else
{
if (modelResources is null)
{
using (var modelStream = GraphicsProvider.Path2ModelStream(modelPath !))
{
if (modelStream is null)
{
throw new FileNotFoundException(modelPath);
}
try
{
_loadedResources = ModelLoader.LoadModel(modelStream);
}
catch (Exception e)
{
throw new InvalidDataException($"Unable to load model: {modelPath}", e);
}
}
}
else
{
_loadedResources = modelResources;
}
_sharedResources = CreateSharedResources(_loadedResources);
cachedResources = new CachedModelResources
{
LoadedResources = _loadedResources,
SharedResources = _sharedResources,
};
_batch = new ModelBatch
{
Models = new HashSet <ModelInstance>(),
};
_modelBatches.Add(cachedResources, _batch);
if (!string.IsNullOrEmpty(modelPath))
{
_cachedResources.Add(modelPath, cachedResources);
}
}
_instanceResources = CreateInstanceResources();
_batch.Models.Add(this);
}
private void CreateResources(LoadedModelResources modelResources)
{
CreateResources(modelResources, null);
}
