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feat(render3d): HDR10 output, and DLSS that stays still

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HDR output: an HDR10 swapchain (A2B10G10R10, ST 2084 over BT.2020) when the
setting asks and the display offers it, with HDR metadata. The tonemap's HDR10
variant keeps the SDR picture up to a 200-nit paper white and rolls highlights
on to 1000 nits; the overlay's converts the interface to the same white. The
screen and LDR images go 10-bit with it; screenshots refuse while it is on.
OpenGL and the Vulkan SDR frame are unchanged. The instance asks for
VK_EXT_swapchain_colorspace. HDR metadata only where the loader has
vkSetHdrMetadataEXT: Streamline's interposer does not, and calling the thunk
crashed the game the moment the swapchain came up HDR10. PC 4K monitor: HDR10,
validation 0. R3D_HDR overrides the setting.

DLSS:
- the vertical jitter offset flips with Streamline's image (rows from the top):
  unflipped, Quality resolved the ground into concentric rings;
- preset K in every mode: the default M put Performance at 18 ms a frame at 4K
  on an RTX 3070 Ti (33 fps against 41 with DLSS off; with K, 60);
- the camera is jittered only while this frame holds a token and the last
  evaluate worked.
R3D_DLSS_PRESET, R3D_CAM_LOG (the camera and DLSS state a frame) and
R3D_NOGRAIN for measuring.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-15 20:06:18 +03:00
parent 0224af64ab
commit 6525c11b3c
16 changed files with 273 additions and 29 deletions
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7
packages/ludic.render3d/render.ludic
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@ -157,6 +157,7 @@ function r3d_resize() -> void {
if water_refl != null { target_free(water_refl); water_refl = null }
print(`r3d: resized to {gl_w}x{gl_h}`)
}
var r3d_cam_log: int = -1
function r3d_frame(time: int) -> void {
gpu_glcheck_after("the time between frames")
outline_frame()
@ -185,6 +186,12 @@ function r3d_frame(time: int) -> void {
prof_gen_frame()
prof_mark_start()
cam_begin_frame(post_frame, gl_w, gl_h)
# R3D_CAM_LOG=1: the camera each frame, in millimetres and thousandths of a radian - to tell a
# camera that moves while the hiker stands still from a picture that shakes on its own
if r3d_cam_log < 0 { r3d_cam_log = 0; if Os.has_env("R3D_CAM_LOG") { r3d_cam_log = 1 } }
if r3d_cam_log == 1 {
print(`cam {r3d_test_frame} pos {f_to_int(f_mul(cam_pos[0], fi(1000)))} {f_to_int(f_mul(cam_pos[1], fi(1000)))} {f_to_int(f_mul(cam_pos[2], fi(1000)))} yaw {f_to_int(f_mul(cam_yaw, fi(1000)))} pitch {f_to_int(f_mul(cam_pitch, fi(1000)))} jitter {f_to_int(f_mul(gsl_jitter_x, fi(1000000)))} {f_to_int(f_mul(gsl_jitter_y, fi(1000000)))} render {post_w}x{post_h} reset {gsl_reset} evalok {gsl_eval_ok} fresh {gsl_fresh}`)
}
# the height-field shadow rebakes as the light moves in steps (daylight), or with the sky yaw when there is no clock
if (not day_on and ter_shadow_yaw != sky_yaw) or ter_shadow_gen != day_gen {
ter_shadow_gen = day_gen