| Microsoft DirectX 8.1 (C++) |
These flags specify which envelope curves are supported.
| Constant | Description |
| MP_CAPS_CURVE_INVSQUARE | Inverse square curve. |
| MP_CAPS_CURVE_JUMP | Jump to the next point without interpolation. |
| MP_CAPS_CURVE_LINEAR | Linear interpolation. |
| MP_CAPS_CURVE_SINE | Sine curve. |
| MP_CAPS_CURVE_SQUARE | Parabolic curve. |