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NetRadiant-custom
From Quake Wiki
NetRadiant-custom is an open-source, cross-platform level editor for id Tech based games. Forked from NetRadiant, it supports Quake, Quake 3 and Quake Live; with development focused on smoothing and tweaking the editing process.
You can find the source-code and releases here: Github
Random Feature Highlights
- WASD camera binds + customizable keyboard functions
- Camera 3 point clipping with brush and entity creation
- Support for common bsp brush formats; Axial projection, Brush primitives and Valve 220
- Seamless face to face texture pasting
- Full texture filtering options including MSAA and anisotropic
- GUI, themes and fonts are customizable
- In editor compiler build menu
- CSG Tool (aka shell modifier)
- Light power adjustable by mouse drag
- Quick vertices drag / brush faces shear
- Precise texture lock, supporting affine transformations
- New bbox styled manipulator, allowing any affine transformation (move, rotate, scale, skew)
- Quick entity linking and connected entities walker
- Texture browser searching
- Countless fixes and optimizations