Surfaces
Introduction
Each face of a brush has its own parameters to define the type of surface. The game uses it to play correct sound and effects when walking on/shooting at something. Some special attributes allow the texture to use an alpha parameter (transparency) or project white light.
In Kingpin Radiant the Surface Inspector would look like this:
In other Map Editors flag names can be missing for Example in the Q2 Radiant:
But sometimes you still can add the correct flag if you know the correct hex value.
Surfaces Flags
| Value | Hex | Flag | Description |
|---|---|---|---|
| 1 | 0x1 | Light | Emit light from the surface, brightness is specified in the 'value' field" |
| 2 | 0x2 | Slick | The surface is slippery |
| 4 | 0x4 | Sky | The surface is sky, the texture will not be drawn, but the background sky box is used instead |
| 8 | 0x8 | Wrap | The surface warps (like water textures do) |
| 16 | 0x10 | Trans33 | The surface is 33% transparent |
| 32 | 0x20 | Trans66 | The surface is 66% transparent |
| 64 | 0x40 | Flowing | The texture wraps in a downward 'flowing' pattern (warp must also be set) |
| 128 | 0x80 | NoDraw | Used for non-fixed-size brush triggers and clip brushes |
| 256 | 0x100 | Hint | Make a primary bsp splitter |
| 512 | 0x200 | Skip | Completely ignore, allowing non-closed brushes |
| 1024 | 0x400 | Specular | Shows specular lighting from light flares |
| 2048 | 0x800 | Diffuse | Used with specular lighting, makes it bigger and less intense |
| 4096 | 0x1000 | Alpha | Alpha texture |
| 8192 | 0x2000 | Mirror | ? |
| 16384 | 0x4000 | Wndw33 | Reflect sky 33% |
| 32768 | 0x8000 | Wndw66 | Reflect sky 66% |
| 65536 | 0x10000 | 10000 | ? |
| 131072 | 0x20000 | 20000 | ? |
| 262144 | 0x40000 | 40000 | ? |
| 524288 | 0x80000 | Water | Water sound |
| 1048576 | 0x100000 | Concrete | Concrete sound (default) |
| 2097152 | 0x200000 | Fabric | Fabric sound |
| 4194304 | 0x400000 | Gravel | Gravel sound |
| 8388608 | 0x800000 | Metal | Metal sound |
| 16777216 | 0x1000000 | Metal Lite | Metal lite sound |
| 33554432 | 0x2000000 | Tin | Tin sound (Snow in SDK) |
| 67108864 | 0x4000000 | Tile | Tile sound |
| 134217728 | 0x8000000 | Wood | Wood sound |
| 268435456 | 0x10000000 | Reflect Fake | Uses fast (fake) reflections |
| 536870912 | 0x20000000 | Reflect Light | Only reflects SURF_LIGHT surfaces |
| 1073741824 | 0x40000000 | 40000000 | ? |
| 2147483648 | 0x80000000 | 80000000 | ? |
Contents Flags
| Value | Hex | Flag | Description |
|---|---|---|---|
| 1 | 0x1 | Solid | Solid (default) |
| 2 | 0x2 | Window | The brush cannot "close" an area, surfaces back-culling |
| 4 | 0x4 | Aux | Unused by the engine |
| 8 | 0x8 | Lava | The brush is lava |
| 16 | 0x10 | Slime | The brush is slime |
| 32 | 0x20 | Water | The brush is water |
| 64 | 0x40 | Mist | The brush is non-solid |
| 128 | 0x80 | Fence | The brush cannot "close" an area, render both sides of each surface |
| 256 | 0x100 | 100 | ? |
| 512 | 0x200 | 200 | ? |
| 1024 | 0x400 | 400 | ? |
| 2048 | 0x800 | 800 | ? |
| 4096 | 0x1000 | 1000 | ? |
| 8192 | 0x2000 | 2000 | ? |
| 16384 | 0x4000 | 4000 | ? |
| 32768 | 0x8000 | 8000 | ? |
| 65536 | 0x10000 | Player Clip | Player cannot pass through the brush (other things can) |
| 131072 | 0x20000 | Monster Clip | NPC cannot pass through the brush (player and other things can) |
| 262144 | 0x40000 | current_0 | Brush has a current in direction of 0 degrees |
| 524288 | 0x80000 | current_90 | Brush has a current in direction of 90 degrees |
| 1048576 | 0x100000 | current_180 | Brush has a current in direction of 180 degrees |
| 2097152 | 0x200000 | current_270 | Brush has a current in direction of 270 degrees |
| 4194304 | 0x400000 | current_up | Brush has a current in the up direction |
| 8388608 | 0x800000 | current_down | Brush has a current in the down direction |
| 16777216 | 0x1000000 | origin | Special brush used for specifying origin of rotation for rotating brushes |
| 33554432 | 0x2000000 | monster | ? |
| 67108864 | 0x4000000 | corpse | ? |
| 134217728 | 0x8000000 | detail | This brush WILL subdivide the BSP surface tree but will NOT affect VIS processing |
| 268435456 | 0x10000000 | translucent | Use for opaque water that does not block vis |
| 536870912 | 0x20000000 | Ladder | Brushes with this flag allow a player to move up and down a vertical surface |
| 1073741824 | 0x40000000 | 40000000 | ? |
| 2147483648 | 0x80000000 | 80000000 | ? |