private void Draw()
{
Debug.Assert(_window.Exists);
int width = _window.Width;
int height = _window.Height;
if (_windowResized)
{
_windowResized = false;
_gd.ResizeMainWindow((uint)width, (uint)height);
_scene.Camera.WindowResized(width, height);
_resizeHandled?.Invoke(width, height);
}
_frameCommands.Begin();
CommonMaterials.FlushAll(_frameCommands);
_sc.UpdateCameraBuffers(_frameCommands); // Meh
_scene.RenderAllStages(_gd, _frameCommands, _sc);
_frameCommands.End();
_gd.ExecuteCommands(_frameCommands);
_gd.SwapBuffers();
}
private void RenderAllSingleThread(GraphicsDevice gd, CommandList cl, SceneContext sc)
{
float depthClear = gd.IsDepthRangeZeroToOne ? 0f : 1f;
Matrix4x4 cameraProj = Camera.ProjectionMatrix;
Vector4 nearLimitCS = Vector4.Transform(new Vector3(0, 0, -_nearCascadeLimit), cameraProj);
Vector4 midLimitCS = Vector4.Transform(new Vector3(0, 0, -_midCascadeLimit), cameraProj);
Vector4 farLimitCS = Vector4.Transform(new Vector3(0, 0, -_farCascadeLimit), cameraProj);
cl.UpdateBuffer(sc.DepthLimitsBuffer, 0, new DepthCascadeLimits
{
NearLimit = nearLimitCS.Z,
MidLimit = midLimitCS.Z,
FarLimit = farLimitCS.Z
});
cl.UpdateBuffer(sc.LightInfoBuffer, 0, sc.DirectionalLight.GetInfo());
Vector3 lightPos = sc.DirectionalLight.Transform.Position - sc.DirectionalLight.Direction * 1000f;
// Near
cl.PushDebugGroup("Shadow Map - Near Cascade");
Matrix4x4 viewProj0 = UpdateDirectionalLightMatrices(
gd,
sc,
Camera.NearDistance,
_nearCascadeLimit,
sc.ShadowMapTexture.Width,
out BoundingFrustum lightFrustum);
cl.UpdateBuffer(sc.LightViewProjectionBuffer0, 0, ref viewProj0);
cl.SetFramebuffer(sc.NearShadowMapFramebuffer);
cl.SetFullViewports();
cl.ClearDepthStencil(depthClear);
Render(gd, cl, sc, RenderPasses.ShadowMapNear, lightFrustum, lightPos, _renderQueues[0], _cullableStage[0], _renderableStage[0], null, false);
cl.PopDebugGroup();
// Mid
cl.PushDebugGroup("Shadow Map - Mid Cascade");
Matrix4x4 viewProj1 = UpdateDirectionalLightMatrices(
gd,
sc,
_nearCascadeLimit,
_midCascadeLimit,
sc.ShadowMapTexture.Width,
out lightFrustum);
cl.UpdateBuffer(sc.LightViewProjectionBuffer1, 0, ref viewProj1);
cl.SetFramebuffer(sc.MidShadowMapFramebuffer);
cl.SetFullViewports();
cl.ClearDepthStencil(depthClear);
Render(gd, cl, sc, RenderPasses.ShadowMapMid, lightFrustum, lightPos, _renderQueues[0], _cullableStage[0], _renderableStage[0], null, false);
cl.PopDebugGroup();
// Far
cl.PushDebugGroup("Shadow Map - Far Cascade");
Matrix4x4 viewProj2 = UpdateDirectionalLightMatrices(
gd,
sc,
_midCascadeLimit,
_farCascadeLimit,
sc.ShadowMapTexture.Width,
out lightFrustum);
cl.UpdateBuffer(sc.LightViewProjectionBuffer2, 0, ref viewProj2);
cl.SetFramebuffer(sc.FarShadowMapFramebuffer);
cl.SetFullViewports();
cl.ClearDepthStencil(depthClear);
Render(gd, cl, sc, RenderPasses.ShadowMapFar, lightFrustum, lightPos, _renderQueues[0], _cullableStage[0], _renderableStage[0], null, false);
cl.PopDebugGroup();
// Reflections
cl.PushDebugGroup("Planar Reflection Map");
cl.SetFramebuffer(sc.ReflectionFramebuffer);
float fbWidth = sc.ReflectionFramebuffer.Width;
float fbHeight = sc.ReflectionFramebuffer.Height;
cl.SetViewport(0, new Viewport(0, 0, fbWidth, fbHeight, 0, 1));
cl.SetFullViewports();
cl.SetFullScissorRects();
cl.ClearColorTarget(0, RgbaFloat.Black);
cl.ClearDepthStencil(depthClear);
// Render reflected scene.
Matrix4x4 planeReflectionMatrix = Matrix4x4.CreateReflection(MirrorMesh.Plane);
CameraInfo camInfo = new CameraInfo();
camInfo.CameraLookDirection = Vector3.Normalize(Vector3.Reflect(_camera.LookDirection, MirrorMesh.Plane.Normal));
camInfo.CameraPosition_WorldSpace = Vector3.Transform(_camera.Position, planeReflectionMatrix);
cl.UpdateBuffer(sc.CameraInfoBuffer, 0, ref camInfo);
Matrix4x4 view = sc.Camera.ViewMatrix;
view = planeReflectionMatrix * view;
cl.UpdateBuffer(sc.ViewMatrixBuffer, 0, view);
Matrix4x4 projection = _camera.ProjectionMatrix;
cl.UpdateBuffer(sc.ReflectionViewProjBuffer, 0, view * projection);
BoundingFrustum cameraFrustum = new BoundingFrustum(view * projection);
Render(gd, cl, sc, RenderPasses.ReflectionMap, cameraFrustum, _camera.Position, _renderQueues[0], _cullableStage[0], _renderableStage[0], null, false);
cl.GenerateMipmaps(sc.ReflectionColorTexture);
cl.PopDebugGroup();
// Main scene
cl.PushDebugGroup("Main Scene Pass");
cl.SetFramebuffer(sc.MainSceneFramebuffer);
fbWidth = sc.MainSceneFramebuffer.Width;
fbHeight = sc.MainSceneFramebuffer.Height;
cl.SetViewport(0, new Viewport(0, 0, fbWidth, fbHeight, 0, 1));
cl.SetFullViewports();
cl.SetFullScissorRects();
cl.ClearDepthStencil(depthClear);
sc.UpdateCameraBuffers(cl); // Re-set because reflection step changed it.
cameraFrustum = new BoundingFrustum(_camera.ViewMatrix * _camera.ProjectionMatrix);
Render(gd, cl, sc, RenderPasses.Standard, cameraFrustum, _camera.Position, _renderQueues[0], _cullableStage[0], _renderableStage[0], null, false);
cl.PopDebugGroup();
cl.PushDebugGroup("Transparent Pass");
Render(gd, cl, sc, RenderPasses.AlphaBlend, cameraFrustum, _camera.Position, _renderQueues[0], _cullableStage[0], _renderableStage[0], null, false);
cl.PopDebugGroup();
cl.PushDebugGroup("Overlay");
Render(gd, cl, sc, RenderPasses.Overlay, cameraFrustum, _camera.Position, _renderQueues[0], _cullableStage[0], _renderableStage[0], null, false);
cl.PopDebugGroup();
if (sc.MainSceneColorTexture.SampleCount != TextureSampleCount.Count1)
{
cl.ResolveTexture(sc.MainSceneColorTexture, sc.MainSceneResolvedColorTexture);
}
cl.PushDebugGroup("Duplicator");
cl.SetFramebuffer(sc.DuplicatorFramebuffer);
fbWidth = sc.DuplicatorFramebuffer.Width;
fbHeight = sc.DuplicatorFramebuffer.Height;
cl.SetFullViewports();
Render(gd, cl, sc, RenderPasses.Duplicator, new BoundingFrustum(), _camera.Position, _renderQueues[0], _cullableStage[0], _renderableStage[0], null, false);
cl.PopDebugGroup();
cl.PushDebugGroup("Swapchain Pass");
cl.SetFramebuffer(gd.SwapchainFramebuffer);
fbWidth = gd.SwapchainFramebuffer.Width;
fbHeight = gd.SwapchainFramebuffer.Height;
cl.SetFullViewports();
Render(gd, cl, sc, RenderPasses.SwapchainOutput, new BoundingFrustum(), _camera.Position, _renderQueues[0], _cullableStage[0], _renderableStage[0], null, false);
cl.PopDebugGroup();
cl.End();
_resourceUpdateCL.Begin();
foreach (Renderable renderable in _allPerFrameRenderablesSet)
{
renderable.UpdatePerFrameResources(gd, _resourceUpdateCL, sc);
}
_resourceUpdateCL.End();
gd.SubmitCommands(_resourceUpdateCL);
gd.SubmitCommands(cl);
}
private void RenderAllMultiThreaded(GraphicsDevice gd, CommandList cl, SceneContext sc)
{
float depthClear = gd.IsDepthRangeZeroToOne ? 0f : 1f;
Matrix4x4 cameraProj = Camera.ProjectionMatrix;
Vector4 nearLimitCS = Vector4.Transform(new Vector3(0, 0, -_nearCascadeLimit), cameraProj);
Vector4 midLimitCS = Vector4.Transform(new Vector3(0, 0, -_midCascadeLimit), cameraProj);
Vector4 farLimitCS = Vector4.Transform(new Vector3(0, 0, -_farCascadeLimit), cameraProj);
Vector3 lightPos = sc.DirectionalLight.Transform.Position - sc.DirectionalLight.Direction * 1000f;
_resourceUpdateCL.Begin();
CommandList[] cls = new CommandList[5];
for (int i = 0; i < cls.Length; i++)
{
cls[i] = gd.ResourceFactory.CreateCommandList(); cls[i].Begin();
}
_resourceUpdateCL.UpdateBuffer(sc.DepthLimitsBuffer, 0, new DepthCascadeLimits
{
NearLimit = nearLimitCS.Z,
MidLimit = midLimitCS.Z,
FarLimit = farLimitCS.Z
});
_resourceUpdateCL.UpdateBuffer(sc.LightInfoBuffer, 0, sc.DirectionalLight.GetInfo());
_allPerFrameRenderablesSet.Clear();
_tasks[0] = Task.Run(() =>
{
// Near
Matrix4x4 viewProj0 = UpdateDirectionalLightMatrices(
gd,
sc,
Camera.NearDistance,
_nearCascadeLimit,
sc.ShadowMapTexture.Width,
out BoundingFrustum lightFrustum0);
cls[1].UpdateBuffer(sc.LightViewProjectionBuffer0, 0, ref viewProj0);
cls[1].SetFramebuffer(sc.NearShadowMapFramebuffer);
cls[1].SetViewport(0, new Viewport(0, 0, sc.ShadowMapTexture.Width, sc.ShadowMapTexture.Height, 0, 1));
cls[1].SetScissorRect(0, 0, 0, sc.ShadowMapTexture.Width, sc.ShadowMapTexture.Height);
cls[1].ClearDepthStencil(depthClear);
Render(gd, cls[1], sc, RenderPasses.ShadowMapNear, lightFrustum0, lightPos, _renderQueues[0], _cullableStage[0], _renderableStage[0], null, true);
});
_tasks[1] = Task.Run(() =>
{
// Mid
Matrix4x4 viewProj1 = UpdateDirectionalLightMatrices(
gd,
sc,
_nearCascadeLimit,
_midCascadeLimit,
sc.ShadowMapTexture.Width,
out var lightFrustum1);
cls[2].UpdateBuffer(sc.LightViewProjectionBuffer1, 0, ref viewProj1);
cls[2].SetFramebuffer(sc.MidShadowMapFramebuffer);
cls[2].SetViewport(0, new Viewport(0, 0, sc.ShadowMapTexture.Width, sc.ShadowMapTexture.Height, 0, 1));
cls[2].SetScissorRect(0, 0, 0, sc.ShadowMapTexture.Width, sc.ShadowMapTexture.Height);
cls[2].ClearDepthStencil(depthClear);
Render(gd, cls[2], sc, RenderPasses.ShadowMapMid, lightFrustum1, lightPos, _renderQueues[1], _cullableStage[1], _renderableStage[1], null, true);
});
_tasks[2] = Task.Run(() =>
{
// Far
Matrix4x4 viewProj2 = UpdateDirectionalLightMatrices(
gd,
sc,
_midCascadeLimit,
_farCascadeLimit,
sc.ShadowMapTexture.Width,
out var lightFrustum2);
cls[3].UpdateBuffer(sc.LightViewProjectionBuffer2, 0, ref viewProj2);
cls[3].SetFramebuffer(sc.FarShadowMapFramebuffer);
cls[3].SetViewport(0, new Viewport(0, 0, sc.ShadowMapTexture.Width, sc.ShadowMapTexture.Height, 0, 1));
cls[3].SetScissorRect(0, 0, 0, sc.ShadowMapTexture.Width, sc.ShadowMapTexture.Height);
cls[3].ClearDepthStencil(depthClear);
Render(gd, cls[3], sc, RenderPasses.ShadowMapFar, lightFrustum2, lightPos, _renderQueues[2], _cullableStage[2], _renderableStage[2], null, true);
});
_tasks[3] = Task.Run(() =>
{
// Reflections
cls[4].SetFramebuffer(sc.ReflectionFramebuffer);
float scWidth = sc.ReflectionFramebuffer.Width;
float scHeight = sc.ReflectionFramebuffer.Height;
cls[4].SetViewport(0, new Viewport(0, 0, scWidth, scHeight, 0, 1));
cls[4].SetFullViewports();
cls[4].SetFullScissorRects();
cls[4].ClearColorTarget(0, RgbaFloat.Black);
cls[4].ClearDepthStencil(depthClear);
// Render reflected scene.
Matrix4x4 planeReflectionMatrix = Matrix4x4.CreateReflection(MirrorMesh.Plane);
CameraInfo camInfo = new CameraInfo();
camInfo.CameraLookDirection = Vector3.Normalize(Vector3.Reflect(_camera.LookDirection, MirrorMesh.Plane.Normal));
camInfo.CameraPosition_WorldSpace = Vector3.Transform(_camera.Position, planeReflectionMatrix);
cls[4].UpdateBuffer(sc.CameraInfoBuffer, 0, ref camInfo);
Matrix4x4 view = sc.Camera.ViewMatrix;
view = planeReflectionMatrix * view;
cls[4].UpdateBuffer(sc.ViewMatrixBuffer, 0, view);
Matrix4x4 projection = _camera.ProjectionMatrix;
cls[4].UpdateBuffer(sc.ReflectionViewProjBuffer, 0, view * projection);
BoundingFrustum cameraFrustum = new BoundingFrustum(view * projection);
Render(gd, cls[4], sc, RenderPasses.ReflectionMap, cameraFrustum, _camera.Position, _renderQueues[3], _cullableStage[3], _renderableStage[3], null, true);
cl.GenerateMipmaps(sc.ReflectionColorTexture);
// Main scene
cls[4].SetFramebuffer(sc.MainSceneFramebuffer);
scWidth = sc.MainSceneFramebuffer.Width;
scHeight = sc.MainSceneFramebuffer.Height;
cls[4].SetViewport(0, new Viewport(0, 0, scWidth, scHeight, 0, 1));
cls[4].SetScissorRect(0, 0, 0, (uint)scWidth, (uint)scHeight);
cls[4].ClearColorTarget(0, RgbaFloat.Black);
cls[4].ClearDepthStencil(depthClear);
sc.UpdateCameraBuffers(cls[4]);
cameraFrustum = new BoundingFrustum(_camera.ViewMatrix * _camera.ProjectionMatrix);
Render(gd, cls[4], sc, RenderPasses.Standard, cameraFrustum, _camera.Position, _renderQueues[3], _cullableStage[3], _renderableStage[3], null, true);
Render(gd, cls[4], sc, RenderPasses.AlphaBlend, cameraFrustum, _camera.Position, _renderQueues[3], _cullableStage[3], _renderableStage[3], null, true);
Render(gd, cls[4], sc, RenderPasses.Overlay, cameraFrustum, _camera.Position, _renderQueues[3], _cullableStage[3], _renderableStage[3], null, true);
});
Task.WaitAll(_tasks);
foreach (Renderable renderable in _allPerFrameRenderablesSet)
{
renderable.UpdatePerFrameResources(gd, _resourceUpdateCL, sc);
}
_resourceUpdateCL.End();
gd.SubmitCommands(_resourceUpdateCL);
for (int i = 0; i < cls.Length; i++)
{
cls[i].End(); gd.SubmitCommands(cls[i]); cls[i].Dispose();
}
if (sc.MainSceneColorTexture.SampleCount != TextureSampleCount.Count1)
{
cl.ResolveTexture(sc.MainSceneColorTexture, sc.MainSceneResolvedColorTexture);
}
cl.SetFramebuffer(sc.DuplicatorFramebuffer);
uint fbWidth = sc.DuplicatorFramebuffer.Width;
uint fbHeight = sc.DuplicatorFramebuffer.Height;
cl.SetViewport(0, new Viewport(0, 0, fbWidth, fbHeight, 0, 1));
cl.SetViewport(1, new Viewport(0, 0, fbWidth, fbHeight, 0, 1));
cl.SetScissorRect(0, 0, 0, fbWidth, fbHeight);
cl.SetScissorRect(1, 0, 0, fbWidth, fbHeight);
Render(gd, cl, sc, RenderPasses.Duplicator, new BoundingFrustum(), _camera.Position, _renderQueues[0], _cullableStage[0], _renderableStage[0], null, false);
cl.SetFramebuffer(gd.SwapchainFramebuffer);
fbWidth = gd.SwapchainFramebuffer.Width;
fbHeight = gd.SwapchainFramebuffer.Height;
cl.SetViewport(0, new Viewport(0, 0, fbWidth, fbHeight, 0, 1));
cl.SetScissorRect(0, 0, 0, fbWidth, fbHeight);
Render(gd, cl, sc, RenderPasses.SwapchainOutput, new BoundingFrustum(), _camera.Position, _renderQueues[0], _cullableStage[0], _renderableStage[0], null, false);
cl.End();
gd.SubmitCommands(cl);
}