Light

Remarks

Everything a light is except where it is. Position, direction and the axis a tube or a rectangle is oriented along all come from the transform, the same way a mesh's do — which is what makes a spot light something you aim with the rotate gizmo rather than by typing a vector, and what stops a file saying two different things about where a light points.

The authored light, against RenderLight's per-frame one. This is what a .vxscene holds and an inspector edits; that is what the lighting feature reads, with the transform already folded in. The fields line up so that LightExtractionSystem is a copy rather than a translation.

⚠ It lives here because this is the assembly that knows what a light is. Vixen.Engine references no graphics API and cannot name LightKind, so this component spent a while in the editor's scene view — authored, saved, and invisible to any build. The arrangement that fixes it is the one Vixen.Physics and Vixen.Audio already use: the subsystem references the ECS and the engine, and owns both its components and the system that bridges them.

⚠ [Component] and [DataContract], which together are what declares it to SceneComponentRegistry. The contract gives it a serializer and a member description — the rows an inspector draws — and the pair is the claim that a compiled scene may name it. Nothing calls a registration method; the engine's component generator emits one declaration per assembly from these two attributes.

Fields and properties (10)

• public LightKind Kind

  Which of the five kinds it is.

• public Color3 Colour

  Its colour, before intensity and before Temperature.

• public float Intensity

  How bright it is, in Unit.

• public LightUnit Unit

  What Intensity is measured in.

• public float Temperature

  Its colour temperature in kelvin, or zero for none.

• public float Range

  The distance at which its contribution reaches zero. Unused by a directional light.

• public float Radius

  Its sphere radius, or a rectangle's half-height. Zero for a punctual light.

• public float InnerAngle

  The inner cone half-angle in radians, inside which a spot is at full brightness.

• public float OuterAngle

  The outer cone half-angle in radians, outside which a spot contributes nothing.

• public float HalfLength

  Half a tube's length, or half a rectangle's width. Zero for a punctual light.

Used by (22)

• ArenaThirdPersonShooter
• LampFlickerThirdPersonShooter
• ComponentRegistrationVixen.Rendering
• LightExtractionSystemVixen.Rendering
• LightExtractionTestsVixen.Rendering.Tests
• LightsVixen.Rendering
• TypeRegistrationVixen.Rendering
• Vixen_Rendering_Ecs_LightSerializerVixen.Rendering
• AddComponentMenuTestsVixen.Editor.App.Tests
• ComponentTestsVixen.Editor.App.Tests
• ComponentsViewVixen.Editor.App
• CreateMenuTestsVixen.Editor.App.Tests
• EditorAffordanceTestsVixen.Editor.App.Tests
• EditorApplicationVixen.Editor.App
• IconContributionTestsVixen.Editor.App.Tests
• LightTestsVixen.Editor.SceneView.Tests
• MaterialIconsVixen.Editor.App
• SceneFormatMigrationTestsVixen.Editor.SceneView.Tests
• SceneLinesVixen.Editor.SceneView
• SceneRenderComponentTestsVixen.Editor.Assets.Tests
• SceneSerializerVixen.Editor.SceneView
• StandardIconsVixen.Editor.App