public AttributelessObject(
RenderScene scene,
int vertexCount,
ReadOnlySpan <TextureInfo> textureInfos)
{
if (scene == null)
{
throw new ArgumentNullException(nameof(scene));
}
this.vertexCount = vertexCount;
//Prepare the inputs
inputs = new IShaderInput[textureInfos.Length];
for (int i = 0; i < inputs.Length; i++)
{
DeviceTexture texture = DeviceTexture.UploadTexture(
texture: textureInfos[i].Texture as IInternalTexture,
scene, generateMipMaps: textureInfos[i].UseMipMaps);
inputs[i] = new DeviceSampler(
scene.LogicalDevice,
texture,
disposeTexture: true,
repeat: textureInfos[i].Repeat,
maxAnisotropy: 8f);
}
}
public void AttachScene(RenderScene scene)
{
ThrowIfDisposed();
//Release resources that are tied to the previous scene
this.scene?.Dispose();
this.scene = scene;
CreateRenderCommands(scene);
}
internal static DeviceTexture UploadTexture(
IInternalTexture texture, RenderScene scene, bool generateMipMaps = false)
{
return(UploadTexture(
texture,
scene.LogicalDevice,
scene.MemoryPool,
scene.StagingBuffer,
scene.Executor,
generateMipMaps));
}
internal Renderer(RenderScene scene, Logger logger = null)
{
if (scene == null)
{
throw new ArgumentNullException(nameof(scene));
}
this.scene = scene;
this.specializationContainer = new SpecializationContainer(logger);
this.pushDataContainer = new PushDataContainer(
stages: ShaderStages.Vertex | ShaderStages.Fragment, logger);
this.logger = logger;
}
internal static DeviceTexture CreateColorTarget(
Int2 size,
Format format,
RenderScene scene,
bool allowSampling = true)
{
return(CreateColorTarget(
size,
format,
scene.LogicalDevice,
scene.MemoryPool,
scene.Executor,
allowSampling));
}
public InstancedObject(
RenderScene scene,
Mesh mesh,
TextureInfo[] textureInfos,
int maxInstances = 100_000)
{
if (scene == null)
{
throw new ArgumentNullException(nameof(scene));
}
if (mesh == null)
{
throw new ArgumentNullException(nameof(mesh));
}
//Prepare the inputs
inputs = new IShaderInput[textureInfos.Length];
for (int i = 0; i < inputs.Length; i++)
{
DeviceTexture texture = DeviceTexture.UploadTexture(
texture: textureInfos[i].Texture as IInternalTexture,
scene, generateMipMaps: textureInfos[i].UseMipMaps);
inputs[i] = new DeviceSampler(
scene.LogicalDevice,
texture,
disposeTexture: true,
repeat: textureInfos[i].Repeat,
maxAnisotropy: 8f);
}
//Upload our mesh to the gpu
deviceMesh = new DeviceMesh(mesh, scene);
//Allocate a buffers for the instance data and indirect args
instanceDataBuffer = new Memory.HostBuffer(
logicalDevice: scene.LogicalDevice,
memoryPool: scene.MemoryPool,
usages: BufferUsages.VertexBuffer,
size: InstanceData.SIZE * maxInstances);
indirectArgumentsBuffer = new Memory.HostBuffer(
logicalDevice: scene.LogicalDevice,
memoryPool: scene.MemoryPool,
usages: BufferUsages.IndirectBuffer,
size: DrawIndexedIndirectCommand.SIZE);
//Write defaults to the indirect args buffer
indirectArgumentsBuffer.Write(new DrawIndexedIndirectCommand(
indexCount: (uint)deviceMesh.IndexCount,
instanceCount: 0, firstIndex: 0, vertexOffset: 0, firstInstance: 0));
}
internal DeviceMesh(Mesh mesh, RenderScene scene)
{
if (mesh == null)
{
throw new ArgumentNullException(nameof(mesh));
}
if (scene == null)
{
throw new ArgumentNullException(nameof(scene));
}
topology = mesh.Topology;
allowRestart = mesh.AllowRestart;
vertexCount = mesh.VertexCount;
indexCount = mesh.IndexCount;
vertexBuffer = mesh.UploadVertices(scene);
indexBuffer = mesh.UploadIndices(scene);
}
private void CreateRenderCommands(RenderScene scene)
{
scene.CreateResources(swapchainSize, swapchainTextures);
//Reset the pool (to release any previously created buffers)
commandPool.Reset(CommandPoolResetFlags.ReleaseResources);
//Allocate new command buffers
commandbuffers = commandPool.AllocateBuffers(new CommandBufferAllocateInfo(
level: CommandBufferLevel.Primary,
count: swapchainTextures.Length
));
//Record the primary command-buffers
for (int i = 0; i < commandbuffers.Length; i++)
{
commandbuffers[i].Begin(new CommandBufferBeginInfo(flags: CommandBufferUsages.None));
scene.Record(commandbuffers[i], i);
commandbuffers[i].End();
}
logger?.Log(nameof(Window), $"Rendercommands recorded ({commandbuffers.Length} command-buffers)");
}