184 Commits
Author SHA1 Message Date
Shivansps 49f4b1d9c7 Support GLES in internal shaders and Vulkan software clip distance fallback (#7489)
* GLES Shaders and Vulkan Clip fallback

* clip fallback: change defined name, set from engine side and invert usage

* Proposed changes and fixes

Fixed:
-The OpenGL ES option stays on when OpenGL is off (issue #7984)
-Missing precision in copy-f, volumetric-f and smaa-resolve-f
-msaa-f including z-compress before precision quantification
-missing float literals in volumetric-f
-Fixed decals blending
-Restored glBindFragDataLocation() for use in legacy external shaders
-Enabled GL_ARB_explicit_attrib_location ext for GLSL version below 330 in GL
-Guarded enabling/disabling of GL_CLIP_DISTANCE0_EXT and GL_DEPTH_CLAMP
-Restored PI in lighting.sdr
-removed "External shaders only" indication from cmakelists.txt
2026-11-03 12:20:21 +09:00
Goober5000 5d89c6cce7 Merge pull request #7796 from Goober5000/fix/3999
Stop the deferred light pass from lighting unlit models
2026-09-23 21:04:44 -04:00
Goober5000andClaude Fable 5.1 537ad2788d Stop the deferred light pass from lighting unlit models
Models drawn without lighting under deferred rendering copy their base
colour into the emissive buffer and zero the ambient occlusion factor,
but still write their real diffuse and specular data to the G-buffer.
Each direct light then adds diffuse and specular on top of the emissive
copy, and the environment map adds its specular term, so the "no
lighting" flag only appeared to work in dark scenes.

Zero the diffuse and specular outputs after the emissive copy.  The
specular alpha is the Fresnel factor, so clearing the whole vector also
removes the grazing-angle sheen.

Fixes #3999

Co-Authored-By: Claude Fable 5.1 <[email protected]>
2026-09-22 01:46:29 -04:00
Goober5000andClaude Fable 5.1 1bfa46eabe Restore the fade on unlit additive model draws
3D shockwaves pass `1 - radius/outer_radius` as the warp alpha, which `model_render_determine_color` turns into the material colour for additive draws.  Since a481999a2 (SamuelCho's OpenGL Code commit in August 2016), the model fragment shader has not multiplied the diffuse sample by that colour in the unlit branch, so the base texture stayed at full brightness and vanished abruptly.  The same path carries the warp effect's radius fade and the alpha of unlit transparent weapons.

Clamp the alpha before converting it to a byte, as the pre-2016 code did; thrusters pass 1.2, and without the clamp they would now render dim.

Co-Authored-By: Claude Fable 5.1 <[email protected]>
2026-09-22 01:27:49 -04:00
Fabian Woltermann 115491f8a9 Refactor RT shadow handling and Vulkan depth operations (#7685)
- Introduced `shadow_ray_params` to simplify ray origin and cull mask management.
- Shifted shadow ray origins to TLAS-relative space for improved precision and consistency, especially for cockpit rendering.
- Refactored cascade bind functions, adding `shadow_cascade_params_bind_deferred()` for consolidated offset/count handling in deferred lighting.
- Expanded TLAS to include cockpits and additional object types, ensuring parity with rasterized shadows.
- Introduced per-instance cull masks to address cockpit self-shadowing issues.
- Improved Vulkan depth isolation for cockpit rendering via backup/restore mechanism, ensuring correct depth sampling in later passes.
- Extracted reusable helper functions for cockpit rendering state logic.
2026-09-21 05:12:55 +02:00
Fabian Woltermann cb284b7f13 Update shader logic for shadow handling and Vulkan large shader configurations (#7659)
Refactor shadow flag handling in shaders to improve compatibility with small-shader mode. Add support for Vulkan's `-no_large_shaders` switch to split model ubershaders for better driver compatibility. Adjust related comments and preprocessor checks for clarity.
2026-08-02 06:29:02 +02:00
Taylor Richards aaa48d4374 fix uniform type mismatch error in shadow_map shader (#7649) 2026-07-24 04:18:48 +00:00
b26b9cf743 Add Vulkan rendering backend, with HDR10 output and raytraced shadows (#7554)
* 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]>
2026-07-21 16:58:21 +00:00
Taylor Richards 309419b518 fix compile error in shadow shader (#7592)
A change introduced by #7529 caused a shader compile error on Mac due to an
attempted swizzle of texture(sampler2DArrayShadow,...), which returns a single
float value rather than a vector.
2026-07-11 02:46:18 +02:00
BMagnu 25eebd96de Shadow Overhaul (#7529)
* 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
2026-07-04 16:08:41 +02:00
BMagnu cc63bfa7c1 Gamma by Shader (#7484)
* Replace SDL gamma with a blit shader gamma

* Window_res comment

* Fixes

* Gamma command line flag
2026-07-04 15:28:52 +02:00
BMagnu 7afbed8a3b Fix shadow artifacts by employing hardware clamping (#7532) 2026-06-18 00:46:33 +02:00
BMagnu 4246b761e7 FIx shadow banding on cockpits (#7495) 2026-06-03 11:06:21 +09:00
BMagnu 0856b8211e Fix Shadow "Halo" (#7494)
* Attempt at removing the 'shadow-halo'

* Tidy up and rename old variable

* Tune bias for cockpits
2026-06-02 16:09:09 +02:00
BMagnuandGoober5000 20c8417e8b Fullneb Revamp (#7352)
* 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]>
2026-05-28 14:43:48 +09:00
BMagnu 7412e14575 Add Z-Compression shader to better use position buffer's FP16 (#7245) 2026-02-25 12:59:30 +09:00
Goober5000 2436ef2a3f Merge pull request #7129 from Goober5000/fix_scannable_ship_types
enhance and clean up scannable ship types
2026-02-23 22:00:34 -05:00
BMagnu 176330023c Add metatable to correctly handle FSO objects (#7190)
* Add metatable to correctly handle FSO objects

* Avoid infinite recursion
2026-02-23 09:56:15 -05:00
wookieejedi 86ef459cf6 Fix shadow shader for Mac (#7138)
Turns out Mac shader does not support the cleaner bracket style
2025-12-07 18:30:55 -08:00
wookieejedi af7bb154d3 Fix shadow shader update oversight (#7135) 2025-12-04 21:03:46 +01:00
wookieejedi 937091ee77 Fix haloing in cockpit shadows (#7134)
* Fix haloing in cockpit shadows

Cockpits can use shadows, but the small geometry of cockpits and the current shadow pass methods result in bad looking shadow halos and poor quality. The issue is that small scale geometry, like cockpit struts/pillars, cast overlapping shadows--and these overlapping shadows need to use a different shadowing method then the default larger external shadows.

I made a small edit the to the shadows file to fix it for small scale shadows (external shadows, IE those at longer ranges, remain using their method since that method works better at longer ranges). In FotG we have been using this update for years and it works very well.

KamiGaAtaeta was having these halo issues on the FS Ship Interiors project, and this shader update fixed those issues. Thus, per suggestion from Lafiel, I'm PRing this fix so everyone can easily use it.

* remove dead code
2025-12-03 23:59:38 +01:00
Goober5000 32c07ef847 enhance and clean up scannable ship types
The `$Scannable` field in objecttypes.tbl controls whether a ship can be targeted by the "target unscanned ship" key.  This is independent of which ship types can actually be *scanned*, which is not connected to any field in objecttypes.tbl.

So, this PR renames the `$Scannable` field to `$Targetable as unscanned:` to be clearer about what it actually does, and it adds the missing counterpart `$Scannable by default:` flag to specify which ship types can actually be scanned.

Note that this is only relevant for legacy scanning behavior.  Mods which use `$Unify scanning behavior:` do not need either of the ship type flags.
2025-11-29 13:48:46 -05:00
Goober5000 88c3cea753 fix scannable ship types (#7130)
The `$Scannable` field in objecttypes.tbl controls whether a ship can be targeted by the "target unscanned ship" key.  In retail, these were cargo containers and freighters.  This is independent of which ship types can actually be *scanned*, which in retail were cargo containers and *transports*.  Since the targetability is meaningless without the ability to scan, this fixes the retail inconsistency by moving the targetability from Freighter to Transport.

Note that this is only relevant for legacy scanning behavior.  Mods which use `$Unify scanning behavior:` do not experience the inconsistency.
2025-11-29 12:02:13 +01:00
LuytenKyandwookieejedi b8c3c560d2 Implementation for an AI order to chase ship types -Second Attempt- (#6828)
* Back in business hopefully

* Refactor

* Resolve CI issue in aigoals.cpp

* Updating order.cpp

* Whoops

* Updated objecttypes.tbl to incorporate attack ship type

* Fix clang-tidy issue

* Forgot one other instance

---------

Co-authored-by: wookieejedi <[email protected]>
2025-08-07 09:56:18 -04:00
BMagnu f96c73faac Fix unlit shader flag (#6873) 2025-07-26 01:22:44 +00:00
BMagnu 755c4c4e29 Fix Volumetric Nebula Bugs and Add Smoothing (#6854)
* Fix 3d tex generation

* Fix blending and emissive

* Add Smoothing

* Add smoothing parameter

* Correctly calculate fractional smoothing
2025-07-24 22:33:37 +09:00
BMagnu 9b82daeefc Proper Ambient Light (#6849)
* Remove ambient handling from amin / decal pass

* Add ambient light to deferred pass

* Make decals work and fix double insignia rendering

* Fix decal vertex shader

* render insignias as decals

* Cleanup of old insignia stuff

* Move insignia post-processing to model load

* perform envmap lighting in deferred shader

* Remove Envmapping from main shader

* Fix MSVC warning

* exclude def_files from clang tidy
2025-07-22 00:17:22 +02:00
wookieejedi a224736543 Slots for custom post processing effects (#6827)
* Slots for custom post processing effects

Post processing effects such as tint or dithering have their uniforms hardcoded, which means the only want to create new post-process effects for a mod is to overwrite an existing effect.

Requested for DEM2, this PR creates 4 blank slots for mods to create new post processing effects--2 floats and 2 vec3. This approach to create blank slots for modders follows the successful strategy used for Custom_Controls 1-5.

Note, this PR also adds `tint` to the default `post_processing.tbl` which had it missing (even though tint is a valid effect with a valid uniform buffer already).

Happy to discuss more or edit however.

* fix ordering
2025-07-14 13:44:18 -04:00
Taylor Richards 7811207ca9 fix decal shader compile error (#6829)
On macOS the new decal shaders (#6813) fail to compile with the following
message: "interpolation qualifier 'flat' must precede storage qualifiers".
2025-07-13 23:19:32 +02:00
BMagnu a52f31f748 Instanced Decals (#6813)
* prepare instancing

* Render single decal with instance-like buffer

* encode per-instance data in the instance matrix

* Actually render decals instanced

* Update todo commit

* actually add stubs

* Gate decal preparation behind GPU capability flag

* Fix MSVC warnigns

* remove explicit layout

* Fix MSVC warnigns 2

* Clang Tidy
2025-07-10 00:51:04 +02:00
Goober5000 88e6542441 add supplemental code to forwarders.lua
The `println` function is a semi-recent addition to zLoadFirst-sct.tbm, while the `Globals` table should have the vector and orientation values.  The `string.starts` and `string.ends` functions were in the original version of zLoadFirst-sct.tbm but were not included in #6545, and `string.ends` is required by cfile_include.lua.
2025-04-16 23:58:28 -04:00
Mike Nelson 65c4e333a4 this should be local 2025-01-31 08:18:00 -06:00
Mike Nelson 9271da7e7c build in the common z load first methods and forwarders 2025-01-23 10:42:19 -06:00
Goober5000 947b3d4f21 Revert "add the fighter/bomber type back to objecttypes.tbl"
This re-removes the fighter/bomber type by reverting commit 565d91b6dc.
2024-10-13 17:03:50 -04:00
Goober5000 565d91b6dc add the fighter/bomber type back to objecttypes.tbl
A few missions used the fighter/bomber ship type, so this adds the type back to make those missions work again.

Temporary fix for #6388.  A more proper fix will be applied after the official 24.2 release.
2024-10-12 22:12:22 -04:00
Goober5000 09d89066ec remove bogus ship types from objecttypes.tbl
The "stealth" and "fighter/bomber" ship class flags are not actual ship types, so they should never have been added to objecttypes.tbl.  Remove them from the built-in table.

Additionally, if a mod *does* use "stealth" in its own objecttypes.tbl, remove it.  This prevents the invalid "stealth" type from overriding a valid existing type, which fixes #6366.
2024-09-25 01:27:39 -04:00
BMagnu 7403f4a1c9 Improve Volumetrics Performance (#6159)
* properly trace volumetrics and explicitly set texture setting

* UDF-ify volumetrics

* Fix warning

* only apply lower bound when actually correct
2024-06-21 17:10:14 +02:00
Goober5000 ce34f77780 add the attack-ship-class goal as valid for player orders 2024-06-14 00:08:47 -04:00
Goober5000 1bb34cc0ae make sure 'tactical' variants of disable and disarm are allowed
The new `ai-disable-ship-tactical` and `ai-disarm-ship-tactical` goals were inadvertently omitted from the ship type default table, causing these goals to not be available in the Event Editor drop-down menu or Ship Editor initial orders.  Testing did not catch this because testing was done using the HUD squad message system which assigned the new goal (if the flag is enabled) without explicitly checking the validity.

Follow-up to #5512.  Fixes #6189.
2024-06-13 23:52:43 -04:00
BMagnu 559a2616f3 Fix edge case in MSAA shader (#6186) 2024-06-11 13:41:19 +02:00
Birk Magnussen f61407d899 Introduce shadow map amd optimization 2024-02-05 19:22:33 +01:00
Birk Magnussen 86ef5c356e Optimize uniforms 2024-02-05 19:22:33 +01:00
Birk Magnussen a127a35eee Optimize inter-stage data 2024-02-05 19:22:33 +01:00
Birk Magnussen 4f28615c6c Set flags correctly 2024-02-05 19:22:33 +01:00
Birk Magnussen 46408cce3a Conditionally set shader flags at run or compiletime 2024-02-05 19:22:33 +01:00
Birk Magnussen f56cbc59f1 improve shader for shadow map generation 2024-02-05 14:43:54 +01:00
Birk Magnussen 1355c484fe Remove language-defined declaration 2024-01-19 22:15:29 +01:00
mjn-mixael 8dcc4a24e9 make internal table file match updated parsing preference 2023-12-15 13:04:25 -06:00
Birk Magnussen 1223808a14 Need to output linear for OpenXR 2023-11-09 22:52:18 +01:00
Birk Magnussen 474db9e184 Fix mouse cursor rendering 2023-11-09 22:43:50 +01:00