private ViewResourceGroupLayout CreateViewResourceGroupLayout(ResourceGroupDescription resourceGroupDescription, RenderEffectState effectState)
{
if (resourceGroupDescription.DescriptorSetLayout == null)
{
return(null);
}
// We combine both hash for DescriptorSet and cbuffer itself (if it exists)
var hash = resourceGroupDescription.Hash;
var effectStateHash = new ObjectId(0, 0, 0, (uint)effectState);
ObjectId.Combine(ref effectStateHash, ref hash, out hash);
ViewResourceGroupLayout result;
if (!viewResourceLayouts.TryGetValue(hash, out result))
{
result = new ViewResourceGroupLayout
{
DescriptorSetLayoutBuilder = resourceGroupDescription.DescriptorSetLayout,
DescriptorSetLayout = DescriptorSetLayout.New(RenderSystem.GraphicsDevice, resourceGroupDescription.DescriptorSetLayout),
ConstantBufferReflection = resourceGroupDescription.ConstantBufferReflection,
Entries = new ResourceGroupEntry[RenderSystem.Views.Count],
State = effectState,
};
for (int index = 0; index < result.Entries.Length; index++)
{
result.Entries[index].Resources = new ResourceGroup();
}
if (resourceGroupDescription.ConstantBufferReflection != null)
{
result.ConstantBufferSize = resourceGroupDescription.ConstantBufferReflection.Size;
result.ConstantBufferHash = resourceGroupDescription.ConstantBufferReflection.Hash;
}
// Resolve slots
result.ConstantBufferOffsets = new int[viewCBufferOffsetSlots.Count];
for (int index = 0; index < viewCBufferOffsetSlots.Count; index++)
{
ResolveCBufferOffset(result, index, viewCBufferOffsetSlots[index].Variable);
}
// Resolve logical groups
result.LogicalGroups = new LogicalGroup[viewLogicalGroups.Count];
for (int index = 0; index < viewLogicalGroups.Count; index++)
{
ResolveLogicalGroup(result, index, viewLogicalGroups[index].Variable);
}
viewResourceLayouts.Add(hash, result);
}
return(result);
}
public override void Prepare(RenderDrawContext context)
{
foreach (var data in Voxels.VoxelRenderer.renderVoxelVolumeDataList)
{
var view = data.ReprView;
var viewFeature = view.Features[RootRenderFeature.Index];
var viewParameters = new ParameterCollection();
// Find a PerView layout from an effect in normal state
ViewResourceGroupLayout firstViewLayout = null;
foreach (var viewLayout in viewFeature.Layouts)
{
// Only process view layouts in normal state
if (viewLayout.State != RenderEffectState.Normal)
{
continue;
}
var viewLighting = viewLayout.GetLogicalGroup(VoxelizerStorerCasterKey);
if (viewLighting.Hash != ObjectId.Empty)
{
firstViewLayout = viewLayout;
break;
}
}
// Nothing found for this view (no effects in normal state)
if (firstViewLayout == null)
{
continue;
}
var firstViewLighting = firstViewLayout.GetLogicalGroup(VoxelizerStorerCasterKey);
// Prepare layout (should be similar for all PerView)
{
// Generate layout
var viewParameterLayout = new ParameterCollectionLayout();
viewParameterLayout.ProcessLogicalGroup(firstViewLayout, ref firstViewLighting);
viewParameters.UpdateLayout(viewParameterLayout);
}
ParameterCollection VSViewParameters = viewParameters;
data.Storage.ApplyWriteParameters(VSViewParameters);
foreach (var attr in data.Attributes)
{
attr.ApplyWriteParameters(VSViewParameters);
}
foreach (var viewLayout in viewFeature.Layouts)
{
if (viewLayout.State != RenderEffectState.Normal)
{
continue;
}
var voxelizerStorer = viewLayout.GetLogicalGroup(VoxelizerStorerCasterKey);
if (voxelizerStorer.Hash == ObjectId.Empty)
{
continue;
}
if (voxelizerStorer.Hash != firstViewLighting.Hash)
{
throw new InvalidOperationException("PerView VoxelizerStorer layout differs between different RenderObject in the same RenderView");
}
var resourceGroup = viewLayout.Entries[view.Index].Resources;
resourceGroup.UpdateLogicalGroup(ref voxelizerStorer, VSViewParameters);
}
}
}
