Property index.
| Idx_Enabled | bool - Enables the ocean |
| Idx_SeaState | float - Overall roughness of the ocean |
| Idx_Reflectivity | float - How much incoming light should be reflected in the water |
| Idx_Ambient | float - How much ambient light is picked up in the water colour |
| Idx_Extinction | float - Amount of light penetration in the water |
| Idx_ExtinctionColour | vec3f - Filtered light colour; RGB 0.0f to 1.0f |
| Idx_Scattering | float - How many particles are in the water to reflect light |
| Idx_ScatterColour | vec3f - The colour of light reflected from the scattering particles |
| Idx_SeaLevel | float - Base height of the ocean in metres |
| Idx_Animate | bool - When enabled, the ocean waves are animated |
| Idx_FixedTime | float - Fixed time value which the oceans state is based off |
| Idx_DisplacementScale | float - Scale of wave displacement |
| Idx_Spray | bool - Whether to enable spray particle effects on cresting waves |
| Idx_WindDir | vec3f - Direction of the wind |
| Idx_WindBias | float - Bias of the wind |
| Idx_WindLanesEnabled | Internal / reserved. |
| Idx_WindLanesWaveAmplitude | Internal / reserved. |
| Idx_WindLanesWaveWavelength | Internal / reserved. |
| Idx_WindLanesWaveSpeed | Internal / reserved. |
| Idx_WindLanesWaveSteepness | Internal / reserved. |
| Idx_LocalReflection | bool - enable reflections on the ocean surface |
| Idx_LocalReflectionQuality | float - resolution of the ocean surface reflections |
| Idx_DistanceScale | |
| Idx_DepthScale | |
| Idx_SurfaceLightingDepth | float - Controls how much of the scattered light is affected by local lights and shadows when rendering the water surface |
| Idx_CausticsSize | float - size of the caustic pattern that appears underwater |
| Idx_CausticsStrength | float - intensity of the caustic outlines |
| Idx_CausticsExtinction | bool - whether or not caustic patterns are affected by extinction |
| Idx_UnderwaterEffects | bool - when enabled show underwater extinction and scattering effects |