private void RecreateDescriptorSets()
{
Graphics.Device.WaitIdle();
// Clean up
foreach (var set in GraphicsDescriptorSets.Values)
{
set.Dispose();
}
GraphicsDescriptorSets.Clear();
foreach (var set in ComputeDescriptorSets.Values)
{
set.Dispose();
}
ComputeDescriptorSets.Clear();
// Create sets
foreach (var keyList in InstanceLists)
{
var(texture, animation) = ((Texture2D, Animation))keyList.Key;
var list = keyList.Value;
// Graphics set
var set = GraphicsDescriptorPool.AllocateSets(new DescriptorSetAllocateInfo(
1, GraphicsDescriptorSetLayout
))[0];
GraphicsDescriptorPool.UpdateSets(
new WriteDescriptorSet[]
{
new WriteDescriptorSet(
set, 0, 0, 1, DescriptorType.UniformBuffer,
bufferInfo: new DescriptorBufferInfo[]
{
new DescriptorBufferInfo(CameraUniform.Buffer)
}
),
new WriteDescriptorSet(
set, 1, 0, 1, DescriptorType.CombinedImageSampler,
imageInfo: new DescriptorImageInfo[]
{
new DescriptorImageInfo(
TextureSampler,
texture.Image.ImageView,
ImageLayout.ShaderReadOnlyOptimal
)
}
),
new WriteDescriptorSet(
set, 2, 0, 1, DescriptorType.UniformBuffer,
bufferInfo: new DescriptorBufferInfo[]
{
new DescriptorBufferInfo(TimeUniform.Buffer)
}
)
}
);
GraphicsDescriptorSets.Add(list, set);
// Compute set
set = ComputeDescriptorPool.AllocateSets(new DescriptorSetAllocateInfo(
1, ComputeDescriptorSetLayout
))[0];
ComputeDescriptorPool.UpdateSets(
new WriteDescriptorSet[]
{
new WriteDescriptorSet(
set, 0, 0, 1, DescriptorType.StorageBuffer,
bufferInfo: new DescriptorBufferInfo[]
{
new DescriptorBufferInfo(ComputeInstanceBuffers[list].Buffer)
}
),
new WriteDescriptorSet(
set, 1, 0, 1, DescriptorType.StorageBuffer,
bufferInfo: new DescriptorBufferInfo[]
{
new DescriptorBufferInfo(VertexInstanceBuffers[list].Buffer)
}
),
new WriteDescriptorSet(
set, 2, 0, 1, DescriptorType.UniformBuffer,
bufferInfo: new DescriptorBufferInfo[]
{
new DescriptorBufferInfo(TimeUniform.Buffer)
}
),
new WriteDescriptorSet(
set, 3, 0, 1, DescriptorType.UniformBuffer,
bufferInfo: new DescriptorBufferInfo[]
{
new DescriptorBufferInfo(AnimationUniform.Buffer)
}
)
}
);
ComputeDescriptorSets.Add(list, set);
}
}
protected override void OnRecordCommandBuffer(VKImage image, CommandBuffer buffer)
{
buffer.Begin(new CommandBufferBeginInfo());
var nonEmptyLists = InstanceLists.Values.Where(e => e.Count > 0);
if (nonEmptyLists.Any())
{
buffer.CmdPipelineBarrier(
srcStageMask: InitialStage,
dstStageMask: PipelineStages.ColorAttachmentOutput,
imageMemoryBarriers: new ImageMemoryBarrier[]
{
new ImageMemoryBarrier(
image: image.Image,
subresourceRange: image.SubresourceRange,
srcAccessMask: InitialAccess,
dstAccessMask: Accesses.ColorAttachmentWrite,
oldLayout: InitialLayout,
newLayout: ImageLayout.ColorAttachmentOptimal
)
}
);
buffer.CmdBeginRenderPass(new RenderPassBeginInfo(
Framebuffers[image],
RenderPass.RenderPass,
new Rect2D(0, 0, image.Extent.Width, image.Extent.Height)
));
buffer.CmdBindPipeline(PipelineBindPoint.Graphics, GraphicsPipeline);
foreach (var list in nonEmptyLists)
{
if (!GraphicsDescriptorSets.TryGetValue(list, out var descriptorSet))
{
throw new InvalidOperationException(
$"No graphics {nameof(DescriptorSet)} corresponding to {nameof(InstanceList)} {list}"
);
}
buffer.CmdBindDescriptorSet(PipelineBindPoint.Graphics, GraphicsPipelineLayout, descriptorSet);
buffer.CmdBindVertexBuffers(0, 1, new VulkanCore.Buffer[] { VertexInstanceBuffers[list].Buffer }, new long[] { 0L });
buffer.CmdDraw(6, list.Count);
}
buffer.CmdEndRenderPass();
}
buffer.End();
buffer = ComputeCommandBuffers[image];
buffer.Begin(new CommandBufferBeginInfo());
if (nonEmptyLists.Any())
{
buffer.CmdBindPipeline(PipelineBindPoint.Compute, ComputePipeline);
foreach (var list in nonEmptyLists)
{
if (!ComputeDescriptorSets.TryGetValue(list, out var descriptorSet))
{
throw new InvalidOperationException(
$"No compute {nameof(DescriptorSet)} corresponding to {nameof(InstanceList)} {list}"
);
}
buffer.CmdBindDescriptorSet(PipelineBindPoint.Compute, ComputePipelineLayout, descriptorSet);
buffer.CmdDispatch((int)MathF.Ceiling(list.Count / 512f), 1, 1);
}
}
buffer.End();
}