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feat(render3d): DLSS super resolution and Reflex through NVIDIA Streamline

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streamline.ludic: slInit before the Vulkan instance, feature support per
adapter, a frame token per frame, Reflex sleep and PCL latency markers, and
DLSS super resolution on the lit HDR frame (Halton jitter, depth + zero
motion vectors with camera motion from clipToPrevClip, matrices carrying
the Vulkan path's y flip and depth remap). Bloom, tonemap and sharpen read
the upscaled size. The device asks for privateData and present_id, which
Streamline's hooks need. R3D_DLSS / R3D_REFLEX / R3D_SL_LOG for tests.
gpu_feature_implemented: DLSS and Reflex.

ludic bundle (Windows): app native "<dir>" copies native libraries beside
the executable.

Verified on an RTX 3070 Ti: DLSS Quality evaluates 1280x720 -> 1920x1080.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-15 19:26:12 +03:00
parent ad8f44b78a
commit ac539b0150
10 changed files with 529 additions and 6 deletions
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9
packages/ludic.render3d/gpu_vk.ludic
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@ -61,7 +61,9 @@ var gvk_has_dic: bool = false # drawIndirectCount
function gvk_init() -> bool {
if gvk_ready { return true }
gsl_boot()
if Vk.open() == 0 { gvk_why = "no Vulkan loader"; return false }
gsl_init()
let cnt = bytes(4)
Vk.put_i32(cnt, 0, 0)
@ -156,6 +158,9 @@ function gvk_init() -> bool {
Vk.put_i32(want13, VkPhysicalDeviceVulkan13Features_sType, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_3_FEATURES)
Vk.put_i32(want13, VkPhysicalDeviceVulkan13Features_dynamicRendering, 1)
Vk.put_i32(want13, VkPhysicalDeviceVulkan13Features_synchronization2, 1)
# Streamline's hooks keep their own data on our objects (private data slots), and ask the device
# to have the feature rather than turning it on themselves
if gsl_on and Vk.get_i32(f13, VkPhysicalDeviceVulkan13Features_privateData) == 1 { Vk.put_i32(want13, VkPhysicalDeviceVulkan13Features_privateData, 1) }
let want12 = bytes(VkPhysicalDeviceVulkan12Features_sizeof)
Vk.zero(want12, VkPhysicalDeviceVulkan12Features_sizeof)
Vk.put_i32(want12, VkPhysicalDeviceVulkan12Features_sType, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_2_FEATURES)
@ -210,6 +215,8 @@ function gvk_init() -> bool {
if gvk_has_surface {
if not gvk_ext_in(dexts, nde, VK_KHR_SWAPCHAIN_EXTENSION_NAME) { gvk_why = `{gvk_device_name} has no swapchain`; return false }
Vk.put_ptr(dext_names, n_dext * 8, VK_KHR_SWAPCHAIN_EXTENSION_NAME); n_dext += 1
# Reflex: Streamline adds VK_NV_low_latency2 to this device, which needs present ids it does not add
if gsl_on and gvk_ext_in(dexts, nde, "VK_KHR_present_id") { Vk.put_ptr(dext_names, n_dext * 8, "VK_KHR_present_id"); n_dext += 1 }
}
if n_dext > 0 {
Vk.put_i32(dci, VkDeviceCreateInfo_enabledExtensionCount, n_dext)
@ -220,6 +227,7 @@ function gvk_init() -> bool {
gvk_dev = Vk.get_ptr(out, 0)
Vk.get_device_queue(gvk_dev, gvk_family, 0, out)
gvk_queue = Vk.get_ptr(out, 0)
gsl_probe_device(gvk_pd)
gvk_mp = bytes(VkPhysicalDeviceMemoryProperties_sizeof)
Vk.get_physical_device_memory_properties(gvk_pd, gvk_mp)
@ -521,6 +529,7 @@ function gvk_once_end(cb: pointer) -> bool {
function gvk_shutdown() -> void {
if not gvk_ready { return }
Vk.device_wait_idle(gvk_dev)
gsl_shutdown()
Vk.destroy_fence(gvk_dev, Vk.get_i64(gvk_fence, 0), null)
Vk.destroy_command_pool(gvk_dev, gvk_pool, null)
Vk.destroy_device(gvk_dev, null)