SourceRadiant

The open-source, cross-platform level editor for Source Engine based games.

SourceRadiant is a fork of NetRadiant-custom (GtkRadiant 1.4→massive rewrite→1.5→NetRadiant→NetRadiant-custom→this)

Credits

• sourcepp
• NetRadiant-custom
• MRVN-Radiant
• GtkRadiant

Supported games

Main focus is on Half-Life 2.

Features

Development is focused on smoothing and tweaking editing process.

Random feature highlights

• WASD camera binds
• Fully supported editing in 3D view (brush and entity creation, all manipulating tools)
• Uniform merge algorithm, merging selected brushes, components and clipper points
• Free and robust vertex editing, also providing abilities to remove and insert vertices
• UV Tool (edits texture alignment of selected face or patch)
• Autocaulk
• Model browser
• Brush faces extrusion
• Left mouse button click tunnel selector, paint selector
• Numerous mouse shortcuts (see help->General->Mouse Shortcuts)
• Focus camera on selected (Tab)
• Snapped modes of manipulators
• Draggable renderable transform origin for manipulators
• Quick vertices drag / brush faces shear shortcut
• Simple shader editor
• Texture painting by drag
• Seamless brush face<->face, patch<->face texture paste
• Customizable keyboard shortcuts
• Customizable GUI themes, fonts
• MeshTex plugin
• Patch thicken
• All patch prefabs are created aligned to active projection
• Filters toolbar with extra functions on right mouse button click
• Viewports zoom in to mouse pointer
• ‘all Supported formats’ default option in open dialogs
• Opening *.map, sent via cmd line (can assign *.map files in OS to be opened with radiant)
• Texture browser: show alpha transparency option
• Texture browser: search in directories and tags trees
• Texture browser: search in currently shown textures
• CSG Tool (aka shell modifier)
• Working region compilations (build a map with region enabled = compile regioned part only)
• QE tool in a component mode: perform drag w/o hitting any handle too
• Map info dialog: + Total patches, Ingame entities, Group entities, Ingame group entities counts
• Connected entities selector/walker
• Build->customize: list available build variables
• 50x faster light radius rendering
• Light power is adjustable by mouse drag
• Anisotropic textures filtering
• Optional MSAA in viewports
• New very fast entity names rendering system
• Support ‘stupid quake bug’
• Arbitrary texture projections for brushes and curves
• Fully working texture lock, supporting any affine transformation
• Texture locking during vertex and edge manipulations
• Brush resize (QE tool): reduce selected faces amount to most wanted ones
• Support brush formats, as toggleable preference: Axial projection, Brush primitives, Valve 220
• Autodetect brush type on map opening
• Automatic AP, BP and Valve220 brush types conversion on map Import and Paste
• New bbox styled manipulator, allowing any affine transform (move, rotate, scale, skew)
• rendering of Q3 shader based skyboxes
• Incredible number of fixes and options

Compiling

cmake -Bbuild -S. -DCMAKE_BUILD_TYPE=Debug
cmake --build build

A fully prepared copy of the editor will be placed under the install directory.