| Value | Meaning |
|---|---|
| lightParamEnergy0 | The light's energy. |
| lightParamSpecular2 | The light's influence on specularity. |
| lightParamRange3 | The light's range. |
| lightParamAttenuation4 | The light's attenuation. |
| lightParamSpotAngle5 | The spotlight's angle. |
| lightParamSpotAttenuation6 | The spotlight's attenuation. |
| lightParamContactShadowSize7 | Scales the shadow color. |
| lightParamShadowMaxDistance8 | Max distance that shadows will be rendered. |
| lightParamShadowSplit1Offset9 | Proportion of shadow atlas occupied by the first split. |
| lightParamShadowSplit2Offset10 | Proportion of shadow atlas occupied by the second split. |
| lightParamShadowSplit3Offset11 | Proportion of shadow atlas occupied by the third split. The fourth split occupies the rest. |
| lightParamShadowNormalBias12 | Normal bias used to offset shadow lookup by object normal. Can be used to fix self-shadowing artifacts. |
| lightParamShadowBias13 | Bias the shadow lookup to fix self-shadowing artifacts. |
| lightParamShadowBiasSplitScale14 | Increases bias on further splits to fix self-shadowing that only occurs far away from the camera. |
| lightParamMax15 | Represents the size of the lightparam enum. |