ShaderLightingRenderer

Defined in: lighting/src/ShaderLightingRenderer.ts:104

Draws soft-edged radial lights into an offscreen buffer, then multiplies that buffer over the scene.

Each light is one quad whose fragment shader runs the projection LightingWorld.levelAt() runs: the lamp is a line of width size square to the direction from the shaded pixel, every occluder in reach hides a stretch of it, and what is left is how brightly that pixel is lit. A shadow’s border therefore widens with the distance from the blocker, a lamp wider than its blocker lights around it, and a cone’s softness fades its edge — all from one formula, with no geometry per shadow.

The drawn picture is what levelAt() answers, within the coverage steps the shader counts in and the light buffer’s 8 bits per channel. Occluder shapes reach the shader through one data texture the scene’s lights share, rebuilt only for the lights that moved.

The bounced light the scene resolved to reaches the picture through LightingComposite, which every lighting renderer shares.

Implements

• LightingRenderer

Constructors

Constructor

new ShaderLightingRenderer(context, options?): ShaderLightingRenderer

Defined in: lighting/src/ShaderLightingRenderer.ts:122

Parameters

context

LightingRendererContext

options?

ShaderLightingRendererOptions = {}

Returns

ShaderLightingRenderer

Methods

destroy()

destroy(): void

Defined in: lighting/src/ShaderLightingRenderer.ts:189

Release every resource owned by this scene’s backend.

Returns

void

Implementation of

LightingRenderer.destroy

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render()

render(frame): void

Defined in: lighting/src/ShaderLightingRenderer.ts:171

Synchronize the backend with the world’s current lights and view.

Parameters

frame

LightingRenderFrame

Returns

void

Implementation of

LightingRenderer.render