Shalltear Engine

Editor

• Dockable panels, detachable (into their own windows), saved layouts
• Hierarchy, Inspector, Asset Browser, Console, Profiler
• Scene view: perspective, orthographic, 2D
• Move/rotate/scale handles. Snapping. Local/world frames
• Shaded, wireframe, shaded wireframe, normals, and depth views
• Game view with play, pause, step, and mute
• Undo and redo
• Asset thumbnails and Inspector previews
• Project hub with a recent-projects list
• Settings scoped to the project/to you/to you in this project
• Package manager
• UI builder and UI debugger
• Animator graph, dope sheet, and curve editors
• Audio mixer window with live meters
• Panels, inspectors, property drawers, and gizmos addable from your module

Scenes and objects

• Scenes, objects, components, behaviors
• Transform on the object itself
• Opt-in per-frame tick. Fixed timestep. Delta time, time scale, pause
• Additive scene loading. Budgeted async loads
• Prefabs, nested prefabs, prefab variants with live propagation
• Prefab editing stage
• Editor-only folders and per-object label colors in the hierarchy
• Data assets you define yourself

C++ scripting

• Gameplay written in C++
• Hot reload while the game runs, with state preserved
• Compile from the editor. Compile on save
• Compiler diagnostics as clickable console rows
• find_package(Shalltear) CMake package. Generated project files
• Toolchain discovery. Generated VS Code settings
• Reflected fields shown/edited in the Inspector

Rendering

• Vulkan 1.3
• Forward+ with clustered lights
• Directional, point, and spot lights
• Cascaded directional shadows. Spot and point shadows
• Metallic-roughness and unlit shading (with a custom lighting hook)
• HLSL compiled to SPIR-V, hot reloaded, with keyword variants
• Per-material blend, cull, alpha clip, and sorting priority
• Sky from a cubemap or a procedural one. Image-based ambient and specular
• Reflection probes from a cubemap (box-projected and blended)
• MSAA, render scale, vsync
• Tonemapping: Neutral, ACES, AgX, or none
• Graphics profiles and quality levels (switchable while the game runs)
• Render graph. Custom passes authored as assets

Physics (optional)

• Rigidbodies: dynamic, kinematic, static
• Box, sphere, capsule, and mesh colliders. Compound bodies
• Physics materials, with friction and bounce combine modes
• Named collision categories
• Raycast, sphere cast, capsule cast, overlap sphere
• Collision and trigger callbacks
• Hinge, fixed, spring, character, and prismatic joints
• Moving platforms that carry what stands on them
• Multi-threaded, fixed-timestep simulation
• Collider gizmos and a debug view

Animation (optional)

• Skeletal animation and skinning
• Blend shapes
• Clips imported from models/authored in the editor
• Animator controller: states, transitions, parameters, conditions
• Blend trees
• Layers and masks
• Retargeting between rigs
• Root motion
• Animation events and method calls
• Audio keys that play a sound from the animated object
• Any reflected field is keyframeable
• A per-frame budget spread across many animators

Post-processing (optional)

• Volumes and profiles (blended by where the camera is)
• Color grading: contrast, color filter, hue shift, saturation
• Bloom
• Vignette
• Ambient occlusion

Audio (optional)

• Audio sources, listeners, and one-shots. Playback scheduled to the sample
• Opus, QOA, or PCM. Decompressed on load, compressed in memory, or streamed
• 3D sound: logarithmic, linear, or custom curves over distance. Spread. Doppler
• Spatializer plugins
• Mixers: groups, sends, snapshots with transitions, exposed parameters
• Reverb, echo, chorus, flange, distortion, EQ, compressor, pitch shifter, and ducking
• Filter components. Reverb zones with presets
• Real and virtual voices, priority, concurrency limits
• Random, layered, and interactive containers
• Music switches on the beat or the bar
• Effects/generators addable from your module, hot reloaded
• Clip preview with a waveform. An audio profiler
• Mixing on its own thread (never allocates/locks)

UI

• Retained element tree with flexbox layout
• Stylesheets with a CSS-like cascade
• .slxml layout documents, .slss stylesheets, templates and instances
• Buttons, text and number fields, sliders, dropdowns, trees, scroll views, split panes, menus
• Drag and drop
• Docking
• Text in TrueType and OpenType fonts
• SVG vector icons
• DPI-aware sizing
• Screen-space UI in a running game
• Offscreen UI surfaces

Assets

• glTF, GLB, and FBX models import as object hierarchies
• Their meshes/materials/textures/rigs/clips usable separately from the file they came in
• Extract any of those to a file of its own
• PNG, JPEG, TGA, and HDR textures
• WAV, AIFF, FLAC, MP3, and Ogg Vorbis audio
• TrueType and OpenType fonts, SVG vectors
• Per-asset import settings. Re-import
• An import cache keyed on what the importer read
• GUID references and text sidecars
• Binary/JSON serialization, driven by reflection
• Asset browser with folders, filtering, and a create menu
• Scene, material, shader, and primitive creation
• Built-in primitive meshes

Shipping a game

• Standalone Windows x64 player (no editor code in it)
• Headless dedicated server target
• Build profiles with inheritance. Build report. Command-line builds
• Content cooked into an .slpak, LZ4 compressed

Core

• Reflection over types, fields, methods, and containers
• Handle-based objects
• Tagged allocators and a leak report
• Work-stealing job system
• Named profiler zones
• Virtual file system with mounts/file watching
• Logging
• Keyboard, mouse, and gamepad input. Action maps. Focus routing
• Multiple windows, multiple monitors, per-monitor DPI
• Physics/animation/post-processing/audio ship as optional packages
• No account. No network connections