* Fix Vulkan render target readback orientation to match OpenGL behavior
* Add render target pass resumption after Vulkan shadow rendering
Ensure that Vulkan render targets resume rendering properly after shadow passes, particularly for off-screen targets like SCPUI's 3D previews, to prevent unintended content leakage onto the screen.
* Skip alpha writes for additive batched bitmaps in render targets to preserve coverage and prevent opaque artifacts.
* Add external subpass dependencies to Vulkan render passes to fix read/write hazards
Introduce explicit memory dependencies for color attachments sampled between passes to prevent flickering and graphical artifacts caused by read-after-write and write-after-read hazards.
* Support fractional alpha values in createColor function and preserve 0-255 compatibility
* Shadow overhaul round 2: PCSS, dynamic cascades, cockpit/instanced shadows
Squashed snapshot of lafiel/shadow_overhaul_2's continuation work
(d3922aa87..010f9d2d9), which has no separate upstream PR of its own.
* Add Vulkan rendering backend
Squashed snapshot of the Vulkan backend as vendored into this branch
(ce2d1e85f..6ce539463, authored by Mara van der Laan with build/CI
fixes by Taylor Richards). This work has its own upstream PR #7553
(notimaginative:vulkan-pr-new) and is not otherwise original to true-hdr.
* Add true HDR output, RT shadows, and PCSS shadows for Vulkan
Squashed snapshot of true-hdr's own integration work: true HDR
framebuffer output, wiring the shadow overhaul into the Vulkan
backend (raytraced + cascaded shadow maps), logging refactors, log
filter UI, and CI/build fixes.
* refactor: update Vulkan logging calls to use `nprintf` for scoped logging
* fix: correct shadow cascade count in Vulkan logging calls
* fix: fall back to PATH-resolved ccache when CCACHE_PATH is stale
CI hardcodes /usr/local/bin/ccache, but macOS runners on Apple Silicon
hosts install Homebrew (and ccache) under /opt/homebrew instead,
causing all four Mac configs to fail with "No such file or directory".
* Fix vulkan texture readback to correctly handle transparent pipelines
* Put the pixel swizzles into a util file
* OOB safety check
* Fix fog handling
* Fix MSAA in Vulkan
* fix: enable SMAA for vulkan
* adapt the post-processing AA shaders to hdr
* fix clang-tidy warnings: concatenate nested namespaces, static methods
pixel_swizzle.{h,cpp}: collapse `namespace graphics { namespace util {`
into `namespace graphics::util {` (modernize-concat-nested-namespaces).
VulkanState.h/VulkanDraw.h: getClearColor()/setClearColor() only touch
gr_screen and other globals, no instance state, so make them static
(readability-convert-member-functions-to-static) and drop the
top-level const on getClearColor()'s return type
(readability-const-return-type).
* fix clang-tidy warning
* Extend raytraced shadows to all directional lights
RT shadows previously only shadowed the first directional light in the
scene, even though multi-sun missions push more than one directional
light into the engine. The TLAS raytraced shadows query against is
already light-agnostic, so this extends both the deferred lighting
pass and the forward MODEL shader to shadow every directional light
(capped by a new Max Raytraced Shadow Lights option, configurable via
the in-game Options menu or the Lab's Scene rendering options).
Cascaded shadow maps are untouched: they're built for a single light
only, so the deferred pass still limits itself to one shadowed
directional light whenever CSM (not raytracing) is the active method.
Co-Authored-By: Claude Sonnet 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_016DA6JHJ3twz2oHGQcZ1Udc
* refactor: improve shader flag handling and render target finalization in Vulkan backend
- Consolidate shader flag setup logic in VulkanPostProcessingLighting to simplify configuration.
- Fix dead field usage in VulkanDraw by ensuring correct image view selection for environment maps.
- Add mip chain regeneration in VulkanRenderer::endRenderTarget to ensure correct mip levels for cubemaps.
* fix: ensure correct mip chain initialization in cubemap rendering
- Add mip chain generation to VulkanDraw for cubemaps with multiple mip levels.
- Fix potential issue with uninitialized mip levels above level 0 in deferred-f.sdr sampling paths.
* fix: don't crash on startup when environment locale is unavailable
std::locale("") pulls in the process's environment locale categories
(LC_CTYPE, LC_MONETARY, LC_PAPER, etc.), and throws std::runtime_error
if any of them names a locale not installed on the host (e.g.
mismatched regional-format overrides). Since SCP_default_locale is
constructed during static initialization, before main() and before any
of our own exception handling exists, an uncaught throw here aborted
the whole process before the game even started. Fall back to the
classic "C" locale instead, which is sufficient since this locale is
only ever used for ASCII case-folding (SCP_toupper/tolower/isdigit).
Co-Authored-By: Claude Sonnet 5 <[email protected]>
* `feat: add raytraced shadows for local lights and optimize TLAS management`
* Make the Commandline authoritative for -res and -vulkan / -opengl
* address BMagnu's comments on the original PR
* update prebuilt version hash to 62c89ef6
* refactor: standardize graphics API handling and document Vulkan limitations in qtFRED
- Updated `AboutDialogModel.cpp` to use `GraphicsAPI` enum for better clarity.
- Ensured qtFRED falls back to OpenGL when Vulkan is requested.
- Added detailed documentation in `qtfred/README.md` regarding Vulkan backend limitations and requirements.
* chore: include cmdline library in main and mission management modules
* docs: add known issue for blank render viewport under Wayland in README.md
* fix CI issues
* chore: add `GR_DEBUG_SCOPE` markers across Vulkan post-processing and rendering paths for improved debugging
* feat: improve Vulkan HDR pipeline with separate encode paths for SDR and HDR10
- Added an HDR10-specific output encode pass in `VulkanRenderer` and `VulkanPostProcessor` that applies PQ/BT.2020 transfer.
- Introduced an optimized SDR fallback path with direct blit support for devices that can skip shader draws.
- Updated `m_sceneLdrCompressed` to provide [0,1]-clamped proxies for HDR edge detection.
- Refactored `copyImageToImage` and added `blitImageToImage` to allow format conversions and optimized transfers.
- Replaced `hdr_mode` with explicit HDR10 flags and data structures for clearer state handling.
* refactor: encapsulate SMAA processing and refactor VulkanPostProcessor
- Moved SMAA-specific logic into `VulkanSMAA` class for better separation of concerns.
- Simplified `initSMAA`, `shutdownSMAA`, and `executeSMAA` logic by leveraging `VulkanLDR` and `PostProcessContext` abstractions.
- Improved initialization and cleanup code with clearer resource lifecycle management.
- Updated debug markers and messages to reference `VulkanSMAA`.
- Enhanced flexibility of fullscreen triangle rendering API with additional parameters (`sampleCount`, `bindGlobalSet`).
* Update Vulkan porting credits in AboutDialogModel
* fix CI issues again
* fix: correct Y-flip in viewport setup for Vulkan light volumes
- Adjusted viewport height to negative value to account for G-buffer render pass's negative Y-axis convention.
- Ensured proper alignment of point and tube light volumes with actual light positions.
* feat: add user-adjustable gamma correction to SDR and HDR10 output paths
- Added gamma correction to HDR10 path, applying user settings before PQ/BT.2020 encode.
- Replaced the SDR blit-only path with an encode pass that applies gamma correction, ensuring consistent behavior across devices.
- Refactored VulkanPostProcessor and associated shaders to support gamma slider adjustments for both SDR and HDR output.
* fix: ensure proper uniform and cull mode setup for Vulkan sphere rendering
- Added uniform buffer setup and default material uniforms in `vulkan_draw_sphere`.
- Disabled face culling in material definition for sphere rendering to align behavior with OpenGL.
* Ensure memory flushes after UBO updates and add explicit pipeline barrier for MoltenVK compatibility.
* fix: add clear pass for SMAA edge detection to prevent persistent artifacts
* feat: add Vulkan debug-utils messenger, opt-in sync validation, frame diagnostics
Groundwork for the renderer-review fix series (.agents/plans/
vulkan-renderer-review-fixes.md, Phase 0):
- Register a VK_EXT_debug_utils messenger (preferred) instead of only the
deprecated VK_EXT_debug_report callback, which is kept as a fallback for
loaders without debug-utils. The messenger config is also chained into
instance creation so vkCreateInstance-time messages are captured.
Validation errors/warnings now go to the main log via mprintf.
- New -gr_sync_validation cmdline flag (implies -gr_debug): chains
VkValidationFeaturesEXT with synchronization validation into instance
creation when VK_LAYER_KHRONOS_validation is available. This is the
regression net for the synchronization fixes in the following commits.
- Frame stats now report descriptor sets/writes allocated per frame and the
total pipeline count (descriptor-manager counters; DescriptorWriter::flush
moved out-of-line to report into the manager).
Co-Authored-By: Claude Fable 5 <[email protected]>
* refactor: unify Vulkan render-pass begins, clamp in-pass clears, add per-frame UBO ring
Phase 1 of the renderer-review fix series: shared helpers that the
correctness fixes build on.
- New VulkanRenderer::beginTrackedRenderPass(PassBeginDesc): every render-pass
begin on the frame command buffer now records vkCmdBeginRenderPass and
updates the state tracker (pass, color attachment count, sample count,
render area, viewport) in one place. Converted: setupFrame,
beginSceneRendering (both branches), resumeSceneRendering,
endSceneRendering, beginRenderTarget (viewport kept for gr_set_viewport),
resumeSwapChainPass, plus new resumeScenePassAfterCopy() shared by
copyEffectTexture/copySceneDepthForParticles and
rebeginSwapChainPassAfterReadback() shared by both readbackFramebuffer
exits (~200 lines of duplicated begin/clear/viewport blocks removed).
- The state tracker records the active render area; all four
vkCmdClearAttachments sites clamp their rects against it and skip empty
results. Previously gr_screen-sized clear rects could exceed a smaller
off-screen render target's render area, which is invalid API usage.
- New PerFrameUboRing utility (VulkanPerFrameUbo.h/.cpp): a persistently
mapped uniform buffer with one slot region per frame in flight and a
self-flushing alloc(). Used by the next commit to fix the cross-frame
UBO races.
Deliberate behavior deltas (all safe-direction): the helper always sets
colorAttachmentCount/sampleCount (some sites previously inherited stale
values), and resumeSwapChainPass/resumeSceneRendering now also reset the
standard flipped viewport instead of leaving the previous one.
Co-Authored-By: Claude Fable 5 <[email protected]>
* fix: eliminate Vulkan cross-frame UBO/buffer races, make gr_sync honest
Phase 2 of the renderer-review fix series: with two frames in flight, several
host-visible resources were rewritten by the CPU while the previous frame's
GPU work could still be reading them.
- The post-processing scratch UBO is now a PerFrameUboRing (per-frame-in-
flight slot regions, persistently mapped, self-flushing alloc). All the
per-pass map/unmap/cursor bookkeeping in bloom/LDR/fog/SMAA is deleted;
the cursor resets exactly once per frame via the new
VulkanPostProcessor::beginFrame() hook in setupFrame.
This also fixes two latent bugs: (a) fog consumed scratch slots mid-scene
and bloom's later same-frame cursor reset overwrote them before submission
whenever fog+bloom were both active; (b) volumetric_fog_data (288 bytes)
overflowed the 256-byte slots - the memcpy spilled into the neighboring
slot and the shader's bound range ended before the aspect/fov/noise
fields. Slots are now 512 bytes (static_assert at the fog call site) and
the per-frame budget is 32 slots.
- The dedicated tonemap, output-encode, and MSAA-resolve UBOs (each a single
instance rewritten per frame, i.e. racy; the MSAA one also never flushed)
are deleted entirely - those passes build their structs on the stack and
allocate from the scratch ring.
- Static-buffer rewrites orphan instead of racing: getVkBuffer() stamps a
last-used frame number, and a full-content updateBufferData() on a Static
buffer used within the last MAX_FRAMES_IN_FLIGHT frames defers the old
VkBuffer to the deletion queue and writes a fresh one. Offset writes
(GPU-heap appends to fresh regions) and PersistentMapping buffers (the
engine holds their mapped pointer and syncs via gr_sync) are exempt.
- gr_sync_wait now honors its contract: VulkanRenderFrame::waitForFinish
takes a timeout and reports expiry without consuming the fence;
VulkanRenderer::waitForFrame returns false for fences taken during the
still-recording frame (previously it waited on a stale or idle slot and
reported success) and resolves the frame->slot mapping correctly. This
makes UniformBufferManager's segment-fence throttling actually protective
on Vulkan for the first time.
Co-Authored-By: Claude Fable 5 <[email protected]>
* Refactor framebuffer and target lifecycle: centralized creation/resizing logic, improved resource management across Vulkan post-processing subsystems.
* Improve Vulkan cross-frame sync with explicit access masks and validation updates
- Unified Vulkan validation flag handling in setup, separating engine debug output from synchronization validation.
- Specified access masks and stage flags to address cross-frame WRITE_AFTER_WRITE vulnerabilities, notably in G-buffer, post-processing, and MSAA resolve paths.
- Adjusted subpass dependencies and image layout transitions to prevent read-after-write and write-after-write hazards, detected using `-gr_sync_validation`.
- Fixed uniform buffer and barrier transitions to ensure proper ordering in render passes across frames.
* Refactor Vulkan render-pass dependencies and sync stages for clarity and future testing
- Clarified dependency logic for cross-pass and cross-frame synchronization, ensuring explicit stage and access flag comments match observed behavior.
- Adjusted subpass dependencies to decouple render-pass compatibility definitions from dependency assumptions.
- Highlighted MoltenVK-specific issues and retained workarounds with notes for re-testing on macOS hardware.
- Updated synchronization barriers and validation notes to address historical inconsistencies across platforms.
* Remove transfer queue support; consolidate all operations into the graphics queue
- Removed transfer queue handling, simplifying buffer and queue logic to use the graphics queue for all transfer operations.
- Updated buffer sharing modes and removed related code paths and parameters for transfer queue families.
- Introduced exclusive buffer access, noting async transfer and queue ownership transfers are future work.
- Limited enabled device features to only those actively used by the renderer, reducing unnecessary feature requests (e.g., robustBufferAccess).
* Refactor frame advancement and descriptor management in VulkanRenderer
- Removed `endFrame()` from `VulkanDescriptorManager`, replacing it with `setCurrentFrame(frameIndex)` for explicit frame synchronization.
- Centralized frame index advancement within `VulkanRenderer` to ensure consistency across components.
- Invalidated cached descriptor set bindings at render-pass boundaries to handle raw recorder staleness correctly.
- Optimized pipeline descriptor rebind logic by removing redundant clears during pipeline changes.
* Refactor `PipelineConfig::hash` and Global descriptor set management for improved hashing and memoization efficiency
- Replaced inefficient shift-based hashing in `PipelineConfig::hash` with a robust `hashCombine` strategy to minimize bucket collisions.
- Introduced `maskBits` helper to streamline bitmask creation for boolean fields.
- Implemented memoization for Global (Set 0) descriptor sets, reducing redundant rebuilds across frames and improving performance.
- Added dirty state tracking (`m_globalSetDirty`) and invalidation logic for Global set updates following relevant input changes (e.g., TLAS or UBO modifications).
* Refactor Vulkan post-processing output logic: extracted shared `encodeToSwapChainPass` method to streamline HDR and SDR output paths.
* Optimize Vulkan descriptor set management with per-frame memoization
- Added memoization for Material (Set 1) and PerDraw (Set 2) descriptor sets to reuse cached sets across frames if inputs remain unchanged.
- Implemented precise input tracking for Material and PerDraw descriptor sets to detect and rebuild only when necessary.
- Reduced redundant Vulkan descriptor allocations and writes, improving performance on repeated or batched draw calls.
* Fix Vulkan access masks for G-buffer and scene pass transitions
- Added `eColorAttachmentRead` to access masks in multiple barriers to ensure proper synchronization for load operations (e.g., `loadOp=eLoad`) across render passes.
- Prevented `READ_AFTER_WRITE` synchronization validation issues in deferred and multi-pass rendering scenarios.
- Updated comments to clarify the reasoning behind the access mask changes and load dependencies.
* Refactor Vulkan resource management and indexed draw logic
- Consolidated destruction queue methods in `VulkanDeletionQueue` using a shared `queueHandle` template to reduce redundancy.
- Introduced `ModelDrawParams` structure and `computeModelDrawParams` function to unify indexed draw parameters for models and shadows.
- Simplified draw logic by eliminating repeated calculation of indexed draw parameters and improving code reuse.
* Add `releaseAnimationSlotRef` for ref-count handling of shared animation texture arrays
- Introduced `releaseAnimationSlotRef` to manage reference counting for shared animation texture-array slots, preventing premature destruction of shared resources.
- Updated `flushTextures` and related methods to integrate `releaseAnimationSlotRef` for shared slot cleanup.
- Refactored staging buffer creation into `createStagingBuffer` for 3D texture uploads and shared path consistency.
- Enhanced texture upload logic with improved tracking and logging for re-upload cases, aiding preloading gap analysis.
- Added instrumentation for on-demand mid-frame texture uploads in `FrameStats`.
* Refactor Vulkan resource and texture management, extend debug logging
- Updated smart pointer usage for consistency across Vulkan resource managers (`std::make_unique`).
- Removed redundant `cubeImageView` member and related cleanup logic; unified sampling view management.
- Added per-instance debug log counters (avoiding static state) for Vulkan texture uploads and bindings, improving visibility during initialization and run-time.
- Optimized `VulkanRenderer` property/feature getters by caching physical device properties and features during device creation.
- Improved memory region flushing logic for out-of-date offsets, aligning with Vulkan Memory Allocator behavior.
- Refactored render pass state tracking to reapply dynamic state reliably after mid-frame render passes.
- Enhanced validation and error handling for mismatched update texture formats.
* fix CI build warning
* Fix on-demand YUV texture locking and set alpha uniform for movie rendering in Vulkan
- Corrected bitmap lock type from `BMP_TEX_OTHER` to `BMP_AABITMAP` for YUV textures during on-demand loading.
- Updated movie rendering to bind alpha from the `MovieData` UBO (set 2, binding 4) for Vulkan, aligning behavior with OpenGL implementation.
* revert inadvertent changes introduced by a squash commit
* address ci issues
* remove wip stuff from code comments that make no sense to people who aren't me
* Remove unused LD_LIBRARY_PATH export and fix shader shadow map sampling.
* Refactor batched rendering uniform setup in Vulkan
- Removed unused fields from `genericData` uniform block, simplifying shader definitions.
- Updated Vulkan material uniform handling to align with OpenGL's batched rendering logic.
- Introduced `batched_data` struct for streamlined UBO updates, improving maintainability and clarity.
* Add `-hdr` command-line option for HDR nits configuration
- Introduced `-hdr` parameter to set paper white and peak luminance in nits, overriding in-game HDR settings.
- Added input validation with error feedback for incorrect format.
* Remove unused `MODEL_SDR_FLAG_SHADOW_MAP` macro from shader flags
* clean up unrelated changes
* Invalidate Vulkan state tracker bindings after external command buffer modifications
- Added `invalidateExternalBindings()` to `VulkanStateTracker` to handle stale pipelines, descriptors, and dynamic states caused by external Vulkan commands (e.g., ImGui renders mid-pass).
- Updated ImGui rendering flow to call `invalidateExternalBindings()` post-draw, ensuring consistent pipeline state for subsequent engine renders.
- Adjusted image usage flags to account for `eTransferSrc` in texture readbacks.
- Fixed barrier `dstAccessMask` and pipeline stage flags to ensure proper synchronization for image transitions.
* Add a few more generically useful lines to the log
* Simplify Qt deployment logic and improve handling for system-installed Qt on Linux
* add cmdline headers to make qtFred compile
* use VK_KHR_synchronization2 for sync and barrier purposes
* Simplify and clean up Qt deployment logic in CMake for qtfred
* update get_bitmap_from_texture to match the new API
* Enhance `-hdr` command-line option to force HDR output and support optional nits configuration with improved input validation and overrides.
* Improve Vulkan robustness, add device feature checks, and refine memory/logging.
- Added depth clamping support gated by device feature checks, with fallback where unsupported.
- Improved deferred lighting UBO overflow handling with user-accessible warnings and buffer size adjustments.
- Enhanced Vulkan logging for validation, allocation, and debugging:
- Automatic logging for descriptor pool exhaustion/fragmentation.
- Vertex format and resource destruction checks.
- Notifications for generic layout transitions and volumetric texture uploads.
- Consolidated shader logic to ensure Vulkan and OpenGL parity.
* Remove HDR10 encode shader and consolidate gamma correction logic for SDR and HDR10. Replace `Verify` assertions with `Assert`
* Add braces to conditional in object lighting logic for clarity
* Refine Vulkan memory allocation checks with `Verification` for improved error handling and messaging.
* Refine VulkanBuffer resize logic to preserve contents with CPU-side copy and add safeguards for non-coherent memory scenarios.
* Add detailed comments explaining descriptor array capacity constants in VulkanDescriptorManager
* Gate shadow support on depth clamp feature availability and clarify its necessity with improved comments.
---------
Co-authored-by: BMagnu <[email protected]>
Co-authored-by: Mara van der Laan <[email protected]>
Co-authored-by: Claude <[email protected]>
* Extract shadows into own shader and render pass
# Conflicts:
# code/def_files/data/effects/main-g.sdr
* Consolidate render queue code
* More cleanup
* Fix missing clear of shadow buffer inter frame
* Request capability for viewport layer rendering
* instanced shadows
* Fix issues
* Switch to PCF+PCSS and proper textures for it
* Smooth PCSS toggle
* Fix for windows
* Fix OGL error
* Cleanup of old flag
* Expose shadow smoothness
* Fix missing uniform
* Make number of shadow cascades dynamic
* Progress on cockpit shadow integration
* Wrangle Cockpit and show-ship shadows into correct behaviour
* Cleanup
* make player ship shadow table options more intuitive
* Cleanup
* Only read from correct set of shadow maps, also stretch first main-scene map to 0
* Remove now non-necessary validation
* Make shadow cascade buffer more typesafe and less wasteful
* Don't allocate cockpit cascades if not used
* Cleanup
* Final fixes
* Fix Warnings
* clang tidy
* Fix missing fallback for shader precaching
* That weird FOV multiplier that always ruins your day
* Avoid shadow geometry artifacts by using hardware depth clamping
* Correctly handle shadow cascade overrides with hardcoded length
* GCC9 and its sad state of C++17 support.
* Address Feedback
# Conflicts:
# code/graphics/shadows.cpp
* change to new fog system
* Fix fog conversion issues
* remove unused old neb values
* Update scripting API
* temporary old-value round trip
* Rewrite nebula fog with four explicit parameters
Replace the legacy `+Fog Near Mult` / `+Fog Far Mult` model — which
depended on fixed engine constants — with four parameters that map
directly to renderer behavior:
+Fog 1000m Visibility fraction of light surviving 1000m of fog
+Fog Near Distance meters from camera where fog begins
+Fog Skybox Clip Distance max render distance for the skybox in fog
+Fog Clip Distance max render distance for the scene in fog
The deferred-lighting fog shader, material system, model renderer,
object sort, and the Lua mission API all consume the new parameters
directly. The legacy `Neb2_fog_near_mult` / `Neb2_fog_far_mult`
globals are removed.
Mission parsing accepts either the legacy keys or the modern keys.
Legacy values are converted to the modern set at parse time, and a
per-mission flag (`Neb2_fog_use_legacy_values`) records which keys to
write back on save. The flag is cleared only when something actually
changes, so opening and OK'ing an unmodified legacy mission preserves
its on-disk format. Saving uses `optional_string_fred` to preserve
user comments through edit cycles.
FRED2 and QtFRED background editors both expose the four parameters
in place of the old multipliers, with friendly labels and tooltips.
Both editors validate input (visibility clamped to [0, 1]; near
distance must be > 0; skybox and scene clip distances may be 0 to
disable fog at that range) and use a snapshot-and-compare at close
time so that a no-op open-then-OK never spuriously rewrites a legacy
mission in the modern format.
FRED2's background dialog is also reorganized so that "Display bg
bitmaps in nebula", "Override nebula fog palette", the RGB row, and
the four fog parameters all sit inside the Nebula group box; the
"Old Nebula" group box is restored below it with its Pattern, Color,
Pitch, Bank, and Heading controls back inside the frame. The dialog
now overrides PreTranslateMessage so that the new fog tooltips —
and the previously broken "Save sun/bitmap angles in correct format"
tooltip — actually fire.
QtFRED's BackgroundEditor.ui adds four QDoubleSpinBox controls in
the existing nebula form layout, with per-field decimals chosen to
avoid scientific notation, and per-field min/max declaring the
validation rules. The QtFRED help page is updated to describe the
new fields.
* fix tooltips
* restore forward-renderer fog
* Clang Tidy
* address feedback
* Refine nebula fog rewrite
- Rename Neb2_fog_use_legacy_values to Neb2_fog_save_legacy_values
to reflect that the flag governs save format, not runtime
behavior.
- Decide both the save flag and the legacy-to-modern conversion
purely from whether the file contains modern fog keys, dropping
the prior heuristic based on required_fso_version. A mission
without modern keys (legacy- or retail-format) converts on load
and saves back in legacy format; missions with modern keys are
saved as modern.
- Snapshot the four fog values as floats at editor open and use
fl_equal for the no-change comparison in both FRED2 and QtFRED,
replacing the FRED2 CString comparison and the QtFRED strict
inequality.
- Document the on-disk invariant in missionsave: when not saving
legacy keys, the four modern keys must always be written (never
gated on "only if non-default"), since the parser uses their
presence to decide whether to run the conversion on next load.
---------
Co-authored-by: Goober5000 <[email protected]>
See title. There were some cascade effects, but the changes are mostly contained to the model code. The calls to `gr_render_model` and `g3_render_primitives` use `const_cast` because constifying that API would require a whole other PR.
* Init Particle shaders only if they're actually used
* set layout correctly
* Don't compile shadow shader if not needed
* Properly deal with capabilities
* Fix typo
* remove obsolete capability
* Ripping out the gloss override code because it's vestigial
* Remove redundant teammask declaration.
* The NORMAL_ALPHA shader feature appears both useless and unusable.
Consequently, I'm removing it.
Fixed environment map rendering
shift fresnel term to match ordering of ComputeGGX, document shader code.
Envmaps: Use tangentMatrix to build local coordinate system
Fixed geometry self-shading calcs to improve shading of rough surfaces.
Cite paper correctly
optimsed env sampling
Put envmap face generation a loop to make it easier to read
Precalculate points on circle for even faster envmap sampling..
Guard against NaNs
Revert to simpler envmap calcs, significantly faster on slower GPUs.
typo
We don't need the sample points any more.
Diffuse IBL shading
Fix gamma issues in envmap rendering
AO term on envmaps.
fix lab crash with retail data
Always render envmaps - PBR shouldn't care if a shine/specmap exists.
* Add support for drawing batched 3D lines of arbitrary color and thickness.
* Add draw3dLine lua function.
* Move line texture out of graphics.h into graphics.cpp, also rename it for proper code style.
* Move line texture generation to batching.cpp, create dedicated batching_add_line function and add support for a line with variable thickness at the start and end.
* Use references in the verts loop
* Add bound checks for line widths
* Warn if the Lua script uses invalid widths
* Basic per-render-model + per-ship tools
* Tidy up settable transparency for standalone use
* Force Alpha Premultiplied on external Alphamult
* Fix sexp description.
This emulates the "scrolling text" effect that is present in briefings.
It is not exactly the same since it just goes pixel wise and not by
character but it looks good enough.
The largest new feature is that it is now possible to include other
files into the RML by using the "include" tag. This is useful for making
markup files more modular.
Also added some more options for existing things (e.g. built-in detail
options).
This adds support for rendering models using thick lines (that means
lines wider than 1 pixel) which is required by the hardpoint HUD gauge.
This feature was present before the switch to OpenGL code and had to be
removed since the core profile does not support rendering lines wider
than 1 pixel.
This uses a geometry shader for converting all the triangles from a
model to 3 quads along the triangle lines which are as thick as set by
the model renderer. Geometry shaders are quite slow if they generate a
lot of geometry (and this generates 4 times the usual amount of geometry
in the shader) so it's probably not a very fast rendering operation but
it is only needed once per frame so it shouldn't be too bad.
I also added support for the RenderDoc API since I needed that for
debugging and it might be useful in the future. It will only become
active if RenderDoc is actually attached to the process so in most cases
the new code will do nothing.
This changes the decal system so that it is able to modify the normal
map of the scene. I tested this with some existing normal maps but I am
not entirely sure if the tangent matrix I construct uses the right
values so some additional testing with normal maps made specifically for
decals would be good.
This also fixed the issues introduced by the changes to how directional
lighting was handled. Now a decal can have a diffuse and a glow map. The
diffuse map is used to change the values of the color buffer and also
supports ambient lighting. The glow map renders into the emissive buffer
and should be used for effects that should not receive lighting.
There were actually multiple issues here. The addition of color mask and
stencil state to the material system overwrote the state set by the
hardpoint renderer so the stencil buffer was never written or read
correctly. I fixed this by introducing three new model render flags
(there were a few open slots in the bit mask so I used those) which set
the correct state using the material system. That also makes setting up
the rendering environment much easier.
Second, gr_opengl_stencil_set used mixed up parameter values which were
probably broken when I introduced more detailed stencil state tracking.
I restored those values to how they were in 3.8.
This fixes the other issue reported in #1640.
This moves all lighting operations into the deferred shading phase of
the rendering pipeline. Previously, directional lights were applied to
all objects while they were being rendered. This was probably done to
avoid doing multiple full screen passes later but caused some problems
since the color information in the G-buffers was not correct for doing
later lighting operations.
This was especially noticable in dark scenes where point lights would
appear to ignore the color of the rendered objects. This should be fixed
with these changes.
I did some performance testing and to my surprise this actually improves
performance in very demanding scenes. My guess would be that applying
the shadows while rendering the objects caused a lot of overdraw which
is not the case anymore since shadows are only computed for visible
pixels. In simple scenes the opposite happens which leads to decreased
performance in those cases but in my opinion the improvement in
demanding scenes outweights this performance decrease.
Specifying the fog rendering options is now handled by the materials
system and the implementation of gr_set_fog was pretty much empty so I
removed it.
This allows to render screen space decals into the deferred lighting
buffers no matter how complex the underlying geometry is.
Currently there is only limited support for using this in the engine.
Only weapon impact decals are supported at the moment for testing
purposes.
I forgot to set the alpha blend mode in the NanoVG changes which meant
that the code used additive blending by default which is not good if the
color in use is black. This sets the blend mode to the value that
corresponds to the values used by the NanoVG reference code.
One of the main points of contention when adding the NanoVG based
TrueType text rendering was that it required an external Opengl
renderer which may interfere with our rendering engine by changing
OpenGL state without telling the rest of the engine. Since the rendering
interface for NanoVG is abstract and can be easily replaced, I did just
that and replaced it with an implementation that uses only generic
graphics functions without relying on the specific graphics API.
This will improve the interoperability of NanoVG with our engine and
should make later changes to the rendering engine easier since there is
no external rendering code which may interfere with our own code.
This uses UBOs for building a buffer object of uniform data before
using that data to draw objects. This should reduce the CPU overhead by
reducing the amount of glUniform calls required for executing a single
draw call. This is especially useful if rendering is limited by the CPU
which should help performance for people with slower CPUs.
This fixes#910.
This converts all usages of bmpman textures to OpenGL texture arrays.
That means that all frames of an animation are stored in a single OpenGL
texture object and can be accessed at the same time in a single draw
call. This should significantly reduce the overhead of drawing lots of
particles since all particles of a single animation can be drawn with a
single draw call.
This fixes#1169.
Since there are so many member I decided it would be better to use the
new member assignment syntax since that automatically guarantees the
right initialization order.
Fabian Woltermann