| tag | FWGL |
| tagWith | FWGL |
| takeEvents | FWGL |
| texImage2DBuffer | FWGL.Internal.GL |
| texImage2DImage | FWGL.Internal.GL |
| texParameterf | FWGL.Internal.GL |
| texParameteri | FWGL.Internal.GL |
| texSubImage2D | FWGL.Internal.GL |
| Texture | |
| 1 (Type/Class) | FWGL.Internal.GL, FWGL.Backend |
| 2 (Type/Class) | FWGL.Texture, FWGL.Graphics.Custom |
| Texture2 | |
| 1 (Type/Class) | FWGL.Shader.Default3D |
| 2 (Data Constructor) | FWGL.Shader.Default3D |
| texture2D | FWGL.Shader.Language, FWGL.Shader |
| textureFile | FWGL.Texture, FWGL.Graphics.Custom, FWGL.Graphics.D2 |
| textureHash | FWGL.Texture |
| TexturePixels | FWGL.Texture |
| textures | FWGL.Graphics.Types |
| textureSize | FWGL.Graphics.Draw |
| textureUniform | FWGL.Graphics.Draw |
| TextureURL | FWGL.Texture |
| textureURL | FWGL.Texture, FWGL.Graphics.Custom, FWGL.Graphics.D2 |
| Time | FWGL |
| time | FWGL |
| toExpr | FWGL.Shader.Language |
| toGLString | FWGL.Internal.GL, FWGL.Backend |
| trackAndHold | FWGL |
| Transform2 | |
| 1 (Type/Class) | FWGL.Shader.Default2D, FWGL.Graphics.D2 |
| 2 (Data Constructor) | FWGL.Shader.Default2D |
| Transform3 | |
| 1 (Type/Class) | FWGL.Shader.Default3D |
| 2 (Data Constructor) | FWGL.Shader.Default3D |
| transMat3 | FWGL.Vector, FWGL.Graphics.Custom, FWGL.Graphics.D2 |
| transMat4 | FWGL.Vector, FWGL.Graphics.Custom |
| transparent | FWGL.Graphics.Color, FWGL.Graphics.D2 |
| transpose4 | FWGL.Vector, FWGL.Graphics.Custom |
| triangulate | FWGL.Geometry |
| true | FWGL.Internal.GL, FWGL.Backend |
| Typeable | FWGL.Shader |
| TypeEq | FWGL.Internal.TList |
| typeName | FWGL.Shader.Language |