| unDraw | FWGL.Graphics.Types |
| uniform1f | FWGL.Internal.GL |
| uniform1fv | FWGL.Internal.GL |
| uniform1i | FWGL.Internal.GL |
| uniform1iv | FWGL.Internal.GL |
| uniform2f | FWGL.Internal.GL |
| uniform2fv | FWGL.Internal.GL |
| uniform2i | FWGL.Internal.GL |
| uniform2iv | FWGL.Internal.GL |
| uniform3f | FWGL.Internal.GL |
| uniform3fv | FWGL.Internal.GL |
| uniform3i | FWGL.Internal.GL |
| uniform3iv | FWGL.Internal.GL |
| uniform4f | FWGL.Internal.GL |
| uniform4fv | FWGL.Internal.GL |
| uniform4i | FWGL.Internal.GL |
| uniform4iv | FWGL.Internal.GL |
| UniformCPU | FWGL.Shader.CPU, FWGL.Shader |
| UniformLocation | |
| 1 (Type/Class) | FWGL.Backend.GLES, FWGL.Backend, FWGL.Internal.GL |
| 2 (Type/Class) | FWGL.Graphics.Types |
| 3 (Data Constructor) | FWGL.Graphics.Types |
| uniformMatrix2fv | FWGL.Internal.GL |
| uniformMatrix3fv | FWGL.Internal.GL |
| uniformMatrix4fv | FWGL.Internal.GL |
| Uniforms | |
| 1 (Type/Class) | FWGL.Shader.Default2D |
| 2 (Type/Class) | FWGL.Shader.Default3D |
| uniforms | FWGL.Graphics.Types |
| Uniforms2D | FWGL.Graphics.D2 |
| Uniforms3D | FWGL.Graphics.D3 |
| Union | FWGL.Internal.TList, FWGL.Shader.Shader |
| UnitVector | FWGL.Graphics.Generic, FWGL.Graphics.D2, FWGL.Graphics.D3 |
| Unknown | |
| 1 (Type/Class) | FWGL.Shader.Language |
| 2 (Data Constructor) | FWGL.Shader.Language |
| unsafeJoin | FWGL.Graphics.Generic, FWGL.Graphics.D2, FWGL.Graphics.D3 |
| useProgram | FWGL.Internal.GL |
| UV | |
| 1 (Type/Class) | FWGL.Shader.Default2D |
| 2 (Data Constructor) | FWGL.Shader.Default2D |
| 3 (Type/Class) | FWGL.Shader.Default3D |
| 4 (Data Constructor) | FWGL.Shader.Default3D |