Fix debug views for dynamic lights, update comments

Move culled lights list for shadow culling to lightbinner rather than shadowcache, lightbinners are guaranteed to be per view (first order, first served though), this lets multiview work for culled lights https://i.imgur.com/JwxhgOJ.png

Cone intersection for tiled light culling Bloat cones a wee bit, still do sphere culling for point lights

enum support for VFX HLSL We dropped DX11 support so we can support it without a worry microsoft/DirectXShaderCompiler/wiki/Language-Versions#hlsl-2017 r_gpu_shadow_culling cvar, parallelize static light visibility tests

Remove all atlas downsampling bullshit, not even being used Was accidentally creating new lightbinner (without light info I needed too) every frame :S CSceneSystem::GetLightBinnerStandard() is "FindOrCreate" while from CSceneView actually gets the actual one GPU Shadow Culling POC: Don't render shadows that are not visible by GPU depth bounds

Remove all atlas downsampling bullshit, not even being used Backport shadowcache from CS2

Fix tiled rendering on multiple viewports, was taking the main viewport from view rather than the actual viewport from layer :S https://i.imgur.com/PCXh3hJ.png

Temp hack fix device lost error in NativeRenderingWidget.cs

Check if main camera is null for EnvmapProbe dynamic renders

Cubemapper (#1504) * Cubemapper tests * Remove all ggx code for now & just copy directly to cubemap array * TextureCube with mipmaps and arrays and mipmaps * Move texture logic from cubemapper to c# * Stub for cubemapper_cs, will calculate both GGX and spherical harmonics all in GPU * Handle all array index stuff in cubemapper * Allow for single sliced cubemap array, needed to be able to render an independent texture in the renderer since it expects a TextureCubeArray, also allow TSPEC_CUBE_CAN_SAMPLE_AS_ARRAY if we want UAV Also fix a problem where CTextureManagerVulkan::GetImageView wouldn't work with a cubemap array as a rwtexture2darray in compute shaders * Fix cube orientation when copying, do texture per envmap probe instead of a singleton array, this will cause headaches with multiple envmaps intersecting but makes it much simpler * GGX filtering * Don't bother with writing cubemap normalization right now (in fact disable it for now!), reuse previous mip so that we have more quality with less samples * Assert isn't valid anymore in ComputeImageViews since we can pass a cube array * Do cubemapper processing of all faces at once without using intermediary copies, 4-8x speedup (~17ms > ~2.5ms), still needs to be faster https://i.imgur.com/b61mX1Y.png * Rendersystemvulkan: Alllow binding specific cubemap [ & arrays ] mips if UAV * Remove unsued, clean up * Dynamic cubemap component settings * Remove the old BuildCubeMaps * Add WidgetUtil.CreateSwapChain * NativeRenderingWidget renders in regular render path * Fix RenderDeviceInfo_t wrong size * Add HandlePendingSwapChainResize for explicitly handling swapchain resize events before doing any work, fixes NativeRenderingWidget.RenderScene rendering on a frame with different window size than the actual swapchain ( and then having invalid color/depth buffers) * CI fails building shaders when machine is coming from a branch that was deleted, full checkout action should be enough for pulling? * If cubemap has no normalization set, don't consider it for NormalizeCubeBrightness * Compiled shaders with normalization brightness fixes for cubes without SH, reenable cube normalization * Wip fast cubemap filtering ( 2.5ms > 0.09ms 😱 ) * Adjust things on fast envmap filtering, major cleanup, rename shader to envmap_filtering * Use high quality GGX filtering if baking cubemap as OnEnabled * Vulkan: Fix image transition layout when binding a mip of a cubemap that's sampleable as Texture2DArray * Don't fetch render attributes from context, that's composited over, fixes a crash * Assert when UAV Index is invalid * Flag hammer maps to always render cubemaps dynamically & always render at least one frame regardless of distance update settings * Ignore cubemap precomputed handshakes, we can add and remove cubemaps at will on scene, those do not have handshakes so the entire thing was already deprecated when we implemented maploader, this cache gets built by m_nCachedEnvMap at runtime This fixes scene cubemaps not showing on static map geometry * ANTLR: Support any dimension arrays * Use fast envmap filtering even for static ones, looks as good if not better than brute forcing if using a few more taps, delete reference_ibl_lighting.fxc (byebye) * Run filtering in two passes to eliminate any fireflies, realtime filtering looks as good as baked filtering now https://files.facepunch.com/sampavlovic/1b2911b1/465thMK9Yq.jpg * Limit number of simultanious cubemap updates on first load to not overflow transform count in large scenes * Remove S_SPECULAR_CUBE_MAP, stupid define, should just be S_SPECULAR * Extra checks on HandlePendingSwapChainResize, should fix device lost issues when trying to draw subsequently * Adjust number of threads on envmap filtering to avoid collision on accessing same source cubemap on per frame cubemap rendering, doesn't really slow this down * Fix missing textures when trying to query cubemaps from skybox, default value for EnvironmentMap should be thrown from lightbinner, not renderingpipeline * Update shaders --------- Co-authored-by: Garry Newman

Cubemapper tests Remove all ggx code for now & just copy directly to cubemap array TextureCube with mipmaps and arrays and mipmaps Move texture logic from cubemapper to c# Stub for cubemapper_cs, will calculate both GGX and spherical harmonics all in GPU Handle all array index stuff in cubemapper Allow for single sliced cubemap array, needed to be able to render an independent texture in the renderer since it expects a TextureCubeArray, also allow TSPEC_CUBE_CAN_SAMPLE_AS_ARRAY if we want UAV Also fix a problem where CTextureManagerVulkan::GetImageView wouldn't work with a cubemap array as a rwtexture2darray in compute shaders Fix cube orientation when copying, do texture per envmap probe instead of a singleton array, this will cause headaches with multiple envmaps intersecting but makes it much simpler GGX filtering Don't bother with writing cubemap normalization right now (in fact disable it for now!), reuse previous mip so that we have more quality with less samples Assert isn't valid anymore in ComputeImageViews since we can pass a cube array Do cubemapper processing of all faces at once without using intermediary copies, 4-8x speedup (~17ms > ~2.5ms), still needs to be faster https://i.imgur.com/b61mX1Y.png Rendersystemvulkan: Alllow binding specific cubemap [ & arrays ] mips if UAV Remove unsued, clean up Dynamic cubemap component settings Remove the old BuildCubeMaps Add WidgetUtil.CreateSwapChain NativeRenderingWidget renders in regular render path Fix RenderDeviceInfo_t wrong size Add HandlePendingSwapChainResize for explicitly handling swapchain resize events before doing any work, fixes NativeRenderingWidget.RenderScene rendering on a frame with different window size than the actual swapchain ( and then having invalid color/depth buffers) CI fails building shaders when machine is coming from a branch that was deleted, full checkout action should be enough for pulling? If cubemap has no normalization set, don't consider it for NormalizeCubeBrightness Compiled shaders with normalization brightness fixes for cubes without SH, reenable cube normalization Wip fast cubemap filtering ( 2.5ms > 0.09ms 😱 ) Adjust things on fast envmap filtering, major cleanup, rename shader to envmap_filtering Use high quality GGX filtering if baking cubemap as OnEnabled Vulkan: Fix image transition layout when binding a mip of a cubemap that's sampleable as Texture2DArray Don't fetch render attributes from context, that's composited over, fixes a crash Assert when UAV Index is invalid Flag hammer maps to always render cubemaps dynamically & always render at least one frame regardless of distance update settings Ignore cubemap precomputed handshakes, we can add and remove cubemaps at will on scene, those do not have handshakes so the entire thing was already deprecated when we implemented maploader, this cache gets built by m_nCachedEnvMap at runtime This fixes scene cubemaps not showing on static map geometry ANTLR: Support any dimension arrays Use fast envmap filtering even for static ones, looks as good if not better than brute forcing if using a few more taps, delete reference_ibl_lighting.fxc (byebye) Run filtering in two passes to eliminate any fireflies, realtime filtering looks as good as baked filtering now https://files.facepunch.com/sampavlovic/1b2911b1/465thMK9Yq.jpg Limit number of simultanious cubemap updates on first load to not overflow transform count in large scenes Remove S_SPECULAR_CUBE_MAP, stupid define, should just be S_SPECULAR Extra checks on HandlePendingSwapChainResize, should fix device lost issues when trying to draw subsequently Adjust number of threads on envmap filtering to avoid collision on accessing same source cubemap on per frame cubemap rendering, doesn't really slow this down Fix missing textures when trying to query cubemaps from skybox, default value for EnvironmentMap should be thrown from lightbinner, not renderingpipeline Update shaders

Update shaders

Fix missing textures when trying to query cubemaps from skybox, default value for EnvironmentMap should be thrown from lightbinner, not renderingpipeline

Limit number of simultanious cubemap updates on first load to not overflow transform count in large scenes Remove S_SPECULAR_CUBE_MAP, stupid define, should just be S_SPECULAR Extra checks on HandlePendingSwapChainResize, should fix device lost issues when trying to draw subsequently Adjust number of threads on envmap filtering to avoid collision on accessing same source cubemap on per frame cubemap rendering, doesn't really slow this down

Run filtering in two passes to eliminate any fireflies, realtime filtering looks as good as baked filtering now https://files.facepunch.com/sampavlovic/1b2911b1/465thMK9Yq.jpg

ANTLR: Support any dimension arrays Use fast envmap filtering even for static ones, looks as good if not better than brute forcing if using a few more taps, delete reference_ibl_lighting.fxc (byebye)

Ignore cubemap precomputed handshakes, we can add and remove cubemaps at will on scene, those do not have handshakes so the entire thing was already deprecated when we implemented maploader, this cache gets built by m_nCachedEnvMap at runtime This fixes scene cubemaps not showing on static map geometry

Cubemapper tests Remove all ggx code for now & just copy directly to cubemap array TextureCube with mipmaps and arrays and mipmaps Move texture logic from cubemapper to c# Stub for cubemapper_cs, will calculate both GGX and spherical harmonics all in GPU Handle all array index stuff in cubemapper Allow for single sliced cubemap array, needed to be able to render an independent texture in the renderer since it expects a TextureCubeArray, also allow TSPEC_CUBE_CAN_SAMPLE_AS_ARRAY if we want UAV Also fix a problem where CTextureManagerVulkan::GetImageView wouldn't work with a cubemap array as a rwtexture2darray in compute shaders Fix cube orientation when copying, do texture per envmap probe instead of a singleton array, this will cause headaches with multiple envmaps intersecting but makes it much simpler GGX filtering Don't bother with writing cubemap normalization right now (in fact disable it for now!), reuse previous mip so that we have more quality with less samples Assert isn't valid anymore in ComputeImageViews since we can pass a cube array Do cubemapper processing of all faces at once without using intermediary copies, 4-8x speedup (~17ms > ~2.5ms), still needs to be faster https://i.imgur.com/b61mX1Y.png Rendersystemvulkan: Alllow binding specific cubemap [ & arrays ] mips if UAV Remove unsued, clean up Dynamic cubemap component settings Remove the old BuildCubeMaps Add WidgetUtil.CreateSwapChain NativeRenderingWidget renders in regular render path Fix RenderDeviceInfo_t wrong size Add HandlePendingSwapChainResize for explicitly handling swapchain resize events before doing any work, fixes NativeRenderingWidget.RenderScene rendering on a frame with different window size than the actual swapchain ( and then having invalid color/depth buffers) CI fails building shaders when machine is coming from a branch that was deleted, full checkout action should be enough for pulling? If cubemap has no normalization set, don't consider it for NormalizeCubeBrightness Compiled shaders with normalization brightness fixes for cubes without SH, reenable cube normalization Wip fast cubemap filtering ( 2.5ms > 0.09ms 😱 ) Adjust things on fast envmap filtering, major cleanup, rename shader to envmap_filtering Use high quality GGX filtering if baking cubemap as OnEnabled Vulkan: Fix image transition layout when binding a mip of a cubemap that's sampleable as Texture2DArray Don't fetch render attributes from context, that's composited over, fixes a crash Assert when UAV Index is invalid Flag hammer maps to always render cubemaps dynamically & always render at least one frame regardless of distance update settings

Flag hammer maps to always render cubemaps dynamically & always render at least one frame regardless of distance update settings

Cubemapper tests Remove all ggx code for now & just copy directly to cubemap array TextureCube with mipmaps and arrays and mipmaps Move texture logic from cubemapper to c# Stub for cubemapper_cs, will calculate both GGX and spherical harmonics all in GPU Handle all array index stuff in cubemapper Allow for single sliced cubemap array, needed to be able to render an independent texture in the renderer since it expects a TextureCubeArray, also allow TSPEC_CUBE_CAN_SAMPLE_AS_ARRAY if we want UAV Also fix a problem where CTextureManagerVulkan::GetImageView wouldn't work with a cubemap array as a rwtexture2darray in compute shaders Fix cube orientation when copying, do texture per envmap probe instead of a singleton array, this will cause headaches with multiple envmaps intersecting but makes it much simpler GGX filtering Don't bother with writing cubemap normalization right now (in fact disable it for now!), reuse previous mip so that we have more quality with less samples Assert isn't valid anymore in ComputeImageViews since we can pass a cube array Do cubemapper processing of all faces at once without using intermediary copies, 4-8x speedup (~17ms > ~2.5ms), still needs to be faster https://i.imgur.com/b61mX1Y.png Rendersystemvulkan: Alllow binding specific cubemap [ & arrays ] mips if UAV Remove unsued, clean up Dynamic cubemap component settings Remove the old BuildCubeMaps Add WidgetUtil.CreateSwapChain NativeRenderingWidget renders in regular render path Fix RenderDeviceInfo_t wrong size Add HandlePendingSwapChainResize for explicitly handling swapchain resize events before doing any work, fixes NativeRenderingWidget.RenderScene rendering on a frame with different window size than the actual swapchain ( and then having invalid color/depth buffers) CI fails building shaders when machine is coming from a branch that was deleted, full checkout action should be enough for pulling? If cubemap has no normalization set, don't consider it for NormalizeCubeBrightness Compiled shaders with normalization brightness fixes for cubes without SH, reenable cube normalization Wip fast cubemap filtering ( 2.5ms > 0.09ms 😱 ) Adjust things on fast envmap filtering, major cleanup, rename shader to envmap_filtering Use high quality GGX filtering if baking cubemap as OnEnabled Vulkan: Fix image transition layout when binding a mip of a cubemap that's sampleable as Texture2DArray Don't fetch render attributes from context, that's composited over, fixes a crash Assert when UAV Index is invalid

Use high quality GGX filtering if baking cubemap as OnEnabled

Adjust things on fast envmap filtering, major cleanup, rename shader to envmap_filtering

Wip fast cubemap filtering ( 2.5ms > 0.09ms 😱 )

Compiled shaders with normalization brightness fixes for cubes without SH, reenable cube normalization

CI fails building shaders when machine is coming from a branch that was deleted, full checkout action should be enough for pulling? If cubemap has no normalization set, don't consider it for NormalizeCubeBrightness

CI fails building shaders when machine is coming from a branch that was deleted, full checkout action should be enough for pulling?

Be able to disable cubemap normalization without S_TOOLS_VIS on shader

Add HandlePendingSwapChainResize for explicitly handling swapchain resize events before doing any work, fixes NativeRenderingWidget.RenderScene rendering on a frame with different window size than the actual swapchain ( and then having invalid color/depth buffers)

Don't flag SceneObject and SceneModel as ESceneObjectFlags.IS_OPAQUE, the materials should dictate it, fixes translucent materials drawing in opaque passes (& drawing twice)

Cubemapper tests Remove all ggx code for now & just copy directly to cubemap array TextureCube with mipmaps and arrays and mipmaps Move texture logic from cubemapper to c# Stub for cubemapper_cs, will calculate both GGX and spherical harmonics all in GPU Handle all array index stuff in cubemapper Allow for single sliced cubemap array, needed to be able to render an independent texture in the renderer since it expects a TextureCubeArray, also allow TSPEC_CUBE_CAN_SAMPLE_AS_ARRAY if we want UAV Also fix a problem where CTextureManagerVulkan::GetImageView wouldn't work with a cubemap array as a rwtexture2darray in compute shaders Fix cube orientation when copying, do texture per envmap probe instead of a singleton array, this will cause headaches with multiple envmaps intersecting but makes it much simpler GGX filtering Don't bother with writing cubemap normalization right now (in fact disable it for now!), reuse previous mip so that we have more quality with less samples Assert isn't valid anymore in ComputeImageViews since we can pass a cube array Do cubemapper processing of all faces at once without using intermediary copies, 4-8x speedup (~17ms > ~2.5ms), still needs to be faster https://i.imgur.com/b61mX1Y.png Rendersystemvulkan: Alllow binding specific cubemap [ & arrays ] mips if UAV

Actually set D_MSAA combo on depth_downsample

Vulkan: Fix validation errors with MSAA disabled, this should fix a lot of crashing problems for people playing without MSAA

Cubemapper tests Remove all ggx code for now & just copy directly to cubemap array TextureCube with mipmaps and arrays and mipmaps Move texture logic from cubemapper to c# Stub for cubemapper_cs, will calculate both GGX and spherical harmonics all in GPU Handle all array index stuff in cubemapper Allow for single sliced cubemap array, needed to be able to render an independent texture in the renderer since it expects a TextureCubeArray, also allow TSPEC_CUBE_CAN_SAMPLE_AS_ARRAY if we want UAV Also fix a problem where CTextureManagerVulkan::GetImageView wouldn't work with a cubemap array as a rwtexture2darray in compute shaders Fix cube orientation when copying, do texture per envmap probe instead of a singleton array, this will cause headaches with multiple envmaps intersecting but makes it much simpler GGX filtering Don't bother with writing cubemap normalization right now (in fact disable it for now!), reuse previous mip so that we have more quality with less samples Assert isn't valid anymore in ComputeImageViews since we can pass a cube array Do cubemapper processing of all faces at once without using intermediary copies, 4-8x speedup (~17ms > ~2.5ms), still needs to be faster https://i.imgur.com/b61mX1Y.png Rendersystemvulkan: Alllow binding specific cubemap [ & arrays ] mips if UAV

Don't bother with writing cubemap normalization right now (in fact disable it for now!), reuse previous mip so that we have more quality with less samples Assert isn't valid anymore in ComputeImageViews since we can pass a cube array

GGX filtering

Fix cube orientation when copying, do texture per envmap probe instead of a singleton array, this will cause headaches with multiple envmaps intersecting but makes it much simpler

Allow for single sliced cubemap array, needed to be able to render an independent texture in the renderer since it expects a TextureCubeArray, also allow TSPEC_CUBE_CAN_SAMPLE_AS_ARRAY if we want UAV Also fix a problem where CTextureManagerVulkan::GetImageView wouldn't work with a cubemap array as a rwtexture2darray in compute shaders

Cubemapper tests Remove all ggx code for now & just copy directly to cubemap array TextureCube with mipmaps and arrays and mipmaps Move texture logic from cubemapper to c# Stub for cubemapper_cs, will calculate both GGX and spherical harmonics all in GPU Handle all array index stuff in cubemapper

Stub for cubemapper_cs, will calculate both GGX and spherical harmonics all in GPU Handle all array index stuff in cubemapper

Cubemapper tests Remove all ggx code for now & just copy directly to cubemap array TextureCube with mipmaps and arrays and mipmaps Move texture logic from cubemapper to c#

Remove all ggx code for now & just copy directly to cubemap array

Fixes local interpolation jitter Game Object Network Mode Selection https://files.facepunch.com/conna/1b0711b1/sbox-dev_G97N4pdA3q.png (#1495) [ActionGraphInclude] implies [Expose] Rename "Game Object" node category to "Scene" Expose scene tracing to Action Graph https://files.facepunch.com/ziks/2024-03-11/sbox-dev_rirZ1oi97u.mp4 Fixes Facepunch/sbox-issues#5120 ActionGraph node menu respects [ReadOnly] attributes Check all conditionals in SerializedProperty.ShouldShow, should make multiple ShowIf's work again Update Facepunch.ActionGraph Facepunch/sbox-issues#5066 Facepunch/sbox-issues#5128 OnDestroyInternal should be internal IzTriangleHull calculates center with doubles, I have no idea why this fixes triangle collision but it does handlebar_moustache small adjustments studdle colour adjustments Allow easy access to graph inputs from node menu, including "This" https://files.facepunch.com/ziks/2024-03-11/RkOMLQmLlN.png Facepunch/sbox-issues#5082 Fix copy/pasting nodes referencing graph target input. Fix NRE when deleting items from serialized list in inspector Fix removing dictionary entries not marking scene unsaved Get rid of redraw flicker when adding/removing from lists and dicts Proper fix for hull vs mesh at large coordinates (thanks dirk) Handle exceptions thrown when discovering reflection-based nodes Fixes Facepunch/sbox-issues#5157 Remove last references to lightbinnervr Readd Dynamic/Baked light settings on hammer Add Scene.Render to unify scene rendering - should fix sbox-issues/issues/4924 Strip out menu resources/startup resources - more trouble than it's worth Fix OnPreRender always getting called, even if execute in editor is false Tick UI right before render, after other updates Make ComponentTypeSelector slightly taller (fixes sbox-issues/issues/5155) Component selector search is scored, uses classname and description too Add tooltip to component selector Rename Particle System to Legacy Particle System Asset preview for fbx, obj, smd https://files.facepunch.com/layla/1b1211b1/sbox-dev_uPe3bKuNAh.png Don't preview smd for now SerializedProperty and ControlSheet support nullable values BoolControlWidget fade property when disabled Fbx serializer is too spammy Ignore unknown color formats in CMesh::CalculateInputLayoutFromAttributes Don't create model for preview mesh if there's no valid meshes Add Vector3.CatmullRomSpline, Vector3.TcbSpline Add SceneLineObject Add LineRenderer component Add line prefab Fix NRE Make joint more robust in finding physics bodies, improve the gizmos a bit Better anchor points for spring joint Fix async warning in PreviewMesh Izabu: Move triangle shifting further up the callstack so the fix gets applied to sphere and capsules too ICollisionListener & ITriggerListener have default interface methods + docs Resolves sbox-issues/issues/4852 Fix game setup's Launch Mode always falling back to default LaunchMode.Normal Resolves sbox-issues/issues/4923 Add RigidBody.MotionEnabled Fix prismatic disabling limit when it shouldn't Create slider with 2 pivots and an axis, this makes the most sense Base joint passes two physics points for joint creation Do a pass on all joints to make sure their local frames make sense Fixed joint keeps the bodies fixed where they are at the moment of joint creation instead of snapping Joint gizmo just draws a line from self to target game object Drag & drop components to change their order Resolves sbox-issues/issues/4254 EditLogs for when a component is moved Tick UI before resetting input - fixes sbox-issues/issues/5169 Fix ParticleGradient defaults not saving properly - fixes sbox-issues/issues/5144 Store lobby owner in lobby data, for access from list - fixes sbox-issues/issues/5141 Try to store package revision id in lobby Cubemapper tests Merge branch 'cubemapper' of sbox into cubemapper

Remove last references to lightbinnervr Readd Dynamic/Baked light settings on hammer

Fix build

Move light culling renderer to scenesystem and remove GetPtrValue hacks from it, we'll call it from lightbinner to pass results from light culling, layers still exist on renderingpipeline for ordering

Revert "Move depth prepass to be the first pass of everything, we'll use it on lightbinner for light culling from now on" This reverts commit 65bc314734f0003a9d2dc5c10e5f7da3a11a8db0.

Move depth prepass to be the first pass of everything, we'll use it on lightbinner for light culling from now on

GatherVisibleLightsGPU Move depth prepass to be the first pass of everything, we'll use it on lightbinner for light culling from now on Do lightbinning for light culling on render thread when a layer first wants to request lights, guarantees we have a depth pyramid by then If we are on a render thread just do a simple flush for ForceFlushGPU(), we just want the GPU to finish it's work, not clean up things Run lightbinner calculation in render thread & actually on lightbinner layer Light culling tests with depth & light radius on compute shader Flush rather than ForceGPUFlush on CReadGPUBuffer::WaitUntilRead() Finish light visibility test shader, rewrite to be cleaner, temp pass PerViewConstantBuffer_t for g_vDepthPsToVsConversion on layer

Hash view ID to FindOrCreateFrameBufferScratchTexture as well to solve collision when we have multiple views with same resolution, eg with splitscreen Fix dynamic reflections and AO in viewported views Add compiled shaders for viewport shading fixes Texture barriers for SSR in multiple viewports

GatherVisibleLightsGPU Move depth prepass to be the first pass of everything, we'll use it on lightbinner for light culling from now on Do lightbinning for light culling on render thread when a layer first wants to request lights, guarantees we have a depth pyramid by then If we are on a render thread just do a simple flush for ForceFlushGPU(), we just want the GPU to finish it's work, not clean up things Run lightbinner calculation in render thread & actually on lightbinner layer Light culling tests with depth & light radius on compute shader Flush rather than ForceGPUFlush on CReadGPUBuffer::WaitUntilRead()