LightContext2D (Mibo)

LightContext2D Type

Namespace: Mibo.Elmish.Graphics2D.Lighting
Assembly: Mibo.MonoGame.dll
Base Type: obj
All Interfaces: IDisposable

Central GPU-state holder for 2D lighting. Owns two compiled effects (plain and normal-mapped) loaded from embedded .mgfx resources via ShaderLoader.

Mirrors the raylib LightContext2D. The context collects lights and occluders each frame (via the DirLights/PointLights/OccludersResizeArrays), then uploads them as shader uniforms on the first lit sprite draw. Uniforms are uploaded to both effects so the renderer can switch between plain and normal-mapped per sprite without re-uploading.

The user is responsible for calling Reset() at the start of each frame's view (the renderer does not call it).

Constructors

Constructor Description

Constructor	Description
`LightContext2D(gd, ?litEffect, ?litNormalMapEffect, ?maxDirLights, ?maxPointLights, ?maxOccluders, ?softness, ?maxShadowDistance)` Full Usage: `LightContext2D(gd, ?litEffect, ?litNormalMapEffect, ?maxDirLights, ?maxPointLights, ?maxOccluders, ?softness, ?maxShadowDistance)` Parameters: gd : `GraphicsDevice` ?litEffect : `Effect` ?litNormalMapEffect : `Effect` ?maxDirLights : `int` ?maxPointLights : `int` ?maxOccluders : `int` ?softness : `float32` ?maxShadowDistance : `float32` Returns: `LightContext2D`	gd : `GraphicsDevice` ?litEffect : `Effect` ?litNormalMapEffect : `Effect` ?maxDirLights : `int` ?maxPointLights : `int` ?maxOccluders : `int` ?softness : `float32` ?maxShadowDistance : `float32` Returns: `LightContext2D`


                
                  
                    
                      LightContext2D(gd, ?litEffect, ?litNormalMapEffect, ?maxDirLights, ?maxPointLights, ?maxOccluders, ?softness, ?maxShadowDistance)

Full Usage:

LightContext2D(gd, ?litEffect, ?litNormalMapEffect, ?maxDirLights, ?maxPointLights, ?maxOccluders, ?softness, ?maxShadowDistance)

Parameters:

gd : GraphicsDevice

?litEffect : Effect

?litNormalMapEffect : Effect

?maxDirLights : int

?maxPointLights : int

?maxOccluders : int

?softness : float32

?maxShadowDistance : float32

Returns: LightContext2D

gd : GraphicsDevice
?litEffect : Effect
?litNormalMapEffect : Effect
?maxDirLights : int
?maxPointLights : int
?maxOccluders : int
?softness : float32
?maxShadowDistance : float32

Returns: LightContext2D

Instance members

Instance member	Description
`this.Ambient` Full Usage: `this.Ambient`
`this.DirLights` Full Usage: `this.DirLights` Returns: `ResizeArray<DirectionalLight2D>`	Returns: `ResizeArray<DirectionalLight2D>`
`this.Effect` Full Usage: `this.Effect` Returns: `Effect`	Returns: `Effect`
`this.EnsureLocationsCached` Full Usage: `this.EnsureLocationsCached`	Caches shader parameter locations for both effects (idempotent).
`this.NormalMapEffect` Full Usage: `this.NormalMapEffect` Returns: `Effect`	Returns: `Effect`
`this.NormalMapParameter` Full Usage: `this.NormalMapParameter` Returns: `EffectParameter`	The normal-map effect's `normalMap` sampler parameter. Returns: `EffectParameter`
`this.Occluders` Full Usage: `this.Occluders` Returns: `ResizeArray<Occluder2D>`	Returns: `ResizeArray<Occluder2D>`
`this.PointLights` Full Usage: `this.PointLights` Returns: `ResizeArray<PointLight2D>`	Returns: `ResizeArray<PointLight2D>`
`this.Reset` Full Usage: `this.Reset`	Clears all lights, occluders, and resets state. Call at the start of each frame's view (the renderer does not call this).
`this.ShaderActive` Full Usage: `this.ShaderActive`
`this.ShadowsEnabled` Full Usage: `this.ShadowsEnabled`
`this.UniformsDirty` Full Usage: `this.UniformsDirty`
`this.UploadUniforms` Full Usage: `this.UploadUniforms`	Uploads all light/occluder uniforms to both effects.