The acrylic effect blits its backdrop from the default framebuffer using
the logical viewport size as the source rectangle. On a HiDPI display
the framebuffer is larger than the logical size, so the blur sampled
only the lower-left corner of the screen and the glass showed the wrong
region stretched across each panel.
- The capture blit source now uses the real framebuffer pixel size
(logical size times ImGui's DisplayFramebufferScale, truncated the
same way the GL backend does), while the capture and blur targets stay
at logical size. The framebuffer size is tracked separately from the
viewport size so quality or buffer-lifetime resets cannot lose it, and
moving the window between a Retina and a non-Retina display redoes the
capture. DX11 is unaffected; its scale is one.
- The debug screenshot sweep captures at framebuffer size too, so HiDPI
captures are no longer cropped.
Tests: the framebuffer-extent helper matches the GL backend's
truncation and falls back to the logical size when the scale is unknown.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Turning blur off (blur 0), switching to low-spec mode or enabling
reduced transparency after the acrylic targets existed left the capture
FBO and both blur ping-pong targets allocated for the rest of the
session, although nothing draws with them while the effect is skipped.
They are now released at a frame boundary and rebuilt on demand:
- ImGuiAcrylic::ReleaseIdleBuffers() runs right after app.preFrame(),
before NewFrame(), when the previous frame's draw data has been
rendered, and once in the resize-watcher frame (GL and DX11). While
the effect is skipped it frees the targets; when the effect is wanted
again it reallocates them once, with no per-frame retry if that fails;
- resize() while skipped only records that a reallocation is needed;
- the release checks the GL names (and each DX11 texture) directly, so a
half-allocated ping-pong pair is freed too; DX11 also resets the
ping-pong index;
- the capture paths and applyBlur() return early without a capture
buffer, which would otherwise blit the default framebuffer onto
itself;
- each release logs "released targets (effect skipped)".
With blur on, the path and the output are unchanged (screenshot sweeps
within noise). After re-enabling, the first frame draws the tinted
fallback until a fresh capture exists.
Measured with software GL, toggling every 30 frames for 1200 frames: the
targets were released exactly one frame after each switch-off (22 of 22)
and rebuilt on each switch-on (21 of 21), with no GL or framebuffer
errors. While off at 1280x720, with a fixed malloc mmap threshold, the
process holds 4.62 MB less (the 1280x720 RGBA8 capture plus two 320x180
RGBA16F blur targets) and RssAnon is about 3.1-3.5 MB lower. With
glibc's default threshold the freed memory stays in the heap and RssAnon
does not visibly drop.
Known issue: every off/on pair now frees and reallocates those targets.
Under software GL (llvmpipe) with the default glibc allocator the freed
texture memory is not reused: toggling every 2 frames grew RssAnon from
49 to 906 MB over 240 pairs, every 8 frames from 56 to 179 MB, and every
30 frames it levels off near 120 MB. It is not a GL object leak (with a
fixed mmap threshold the mapped bytes stay flat), and on a hardware
driver (WSLg d3d12) RssAnon stayed between 67.5 and 74.9 MB under the
2-frame churn (94.3 MB without the release). Users reach fast toggling
by holding Ctrl+Shift+Down (key repeat, about 20 Hz) or by dragging the
blur slider back and forth across 0. A short delay before releasing
would avoid it if software-rendered users matter.
Not verifiable here: the DX11 release and reallocation at runtime, and
macOS.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Low-spec mode, theme effects, blur, UI and noise opacity and the
console scanline reached the live effects state only once the Settings
page or the first-run wizard was opened. "Effects off" and low-spec
therefore reverted at every launch, and the animated defaults kept the
main loop busy (91% of a core on an idle Lite wallet whose effects were
saved off).
- App::applyVisualSettings(): one low-spec-aware path from the saved
prefs to the effects state, used at startup (after the skin, since
setActiveSkin reloads the effect config), by the low-spec hotkey, the
wizard and the Settings page.
- Low-spec stays a runtime-only override. The Settings page shows the
overrides but persists the real prefs from its snapshot, and opening
it under low-spec no longer turns theme effects and blur back on.
Unticking a low-spec in the wizard that was loaded rather than ticked
there now restores the saved prefs.
- Theme effects on/off always pairs with reduced transparency (the
rainbow, shimmer and glare layers), as at startup and in the hotkeys.
- kAcrylicMaxBlur moves to imgui_acrylic.h, so startup clamps blur
values saved in the old 0-4 range the way the slider does.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The acrylic system only blurred a frozen snapshot of the static app background. Add
an overlay-time re-capture so the Manage-portfolio modal blurs the LIVE tab content
behind it.
- AcrylicMaterial::captureLiveFramebuffer() (GL blit of FB 0 / DX11 CopyResource of the
backbuffer + no-backend stub) mirrors captureBackgroundDirect but bypasses the
dirtyFrames_ gate so it refreshes every frame the overlay is open, forcing a re-blur.
- ImGuiAcrylic::GetLiveCaptureCallback() returns a draw callback for it.
- market_tab: the modal inserts that callback (+ ImDrawCallback_ResetRenderState) at the
START of its overlay draw list, before the backdrop, so the capture holds the app UI
drawn below and the backdrop blurs it. On close, InvalidateCapture() re-captures the
background so other glass panels don't keep blurring the stale live capture.
- Panel theme-effects are suppressed during the market render while the modal is open
(their foreground-draw-list borders draw above all windows and would otherwise bleed
over the overlay). Market tab body is rendered again (no longer skipped).
- Backdrop draws the acrylic at full strength (fallbackColor.w=1) over an opaque base so
the blurred content reads clearly; lighter dim.
Design mapped via an Explore investigation of the capture/blur pipeline; compiles on
both OpenGL (Linux) and DX11 (Windows cross-build). Needs on-device visual verification.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Full-node GUI wallet for DragonX cryptocurrency.
Built with Dear ImGui, SDL3, and OpenGL3/DX11.
Features:
- Send/receive shielded and transparent transactions
- Autoshield with merged transaction display
- Built-in CPU mining (xmrig)
- Peer management and network monitoring
- Wallet encryption with PIN lock
- QR code generation for receive addresses
- Transaction history with pagination
- Console for direct RPC commands
- Cross-platform (Linux, Windows)
DanSandClaude Opus 4.8