A visual tool that allows you to have screens in your project cast real-time lighting adaptive to what is on screenIf you have ever had a screen in your game and wanted that screen to light up your environment realistically, you've probably been pretty stumped on tools. This asset solves that problem elegantly and uses batch processing to be incredibly performant.FeaturesTransform any render texture (UI, videos, game screens) into realistic environmental lightingWorks with both 3D and 2D URP projectsPerformance optimized with batch processingCustomizable sampling with area averaging and position selectionSmooth transitions and flicker reductionDesigner-friendly editor with visual previewsHaving real-time data rather than pre-baking allows you to create fully dynamic lighting. Your UI changes? The lighting changes. Your game screens react to player input? So does the environmental lighting.System OverviewCore Components:TextureToLightManager.cs - For standard 3D lightingTextureToLightManager2D.cs - For URP 2D lightingCustom editor extensions for both componentsImplementation DetailsSampling SystemPoint Sampling: Samples color from specific coordinates on a render textureArea Averaging: Circular sampling with configurable radius (1-100 pixels) for smoother lightingNormalized Coordinates: Uses 0-1 range for position independent of texture resolutionPerformance OptimizationsBatch Processing: Processes subsets of lights each frame to distribute workloadConfigurable Update Interval: Control how frequently lights update (default: 0.1s)Memory Efficiency:Reuses temporary textures and render texturesImplements texture caching system to avoid redundant samplingOptimized Graphics.CopyTexture operations for minimal overheadLight Transition FeaturesScreening Effect: Reduces flickering by limiting the rate of brightness changeThreshold parameter (0.1-1.0): Minimum brightness difference to trigger screeningStrength parameter (0.1-1.0): Controls how aggressively changes are smoothedSmooth Transitions: Time-based color interpolationConfigurable transition speed (1.0-10.0)Frame-independent using Time.deltaTimeFramework IntegrationUnity Version: Compatible with Unity 2019.4+Render Pipeline Support:Built-in Render Pipeline (3D lights)Universal Render Pipeline (URP 2D lights)Lighting Component Compatibility:Standard Unity Light componentURP Light2D componentEditor FunctionalityVisual Sample Point Selection: Click on texture preview to set sample positionReal-time Color Preview: Visualizes the sampled colorArea Radius Visualization: Shows sampling area when using area averagingMapping Management: Add/remove texture-to-light mappings through the inspectorMemory & Performance ConsiderationsMemory usage scales with the total number of sample points and area sample sizesCPU usage depends on update interval, batch size, and number of light mappingsMinimal GPU impact using optimized texture sampling techniquesPerformance impact is proportional to sample radius when using area averagingAdvanced UsageGlobal vs Individual Settings: Apply settings universally or per lightOverride System: Global settings can be toggled to override individual light settingsInspector Debug Visualizations: Preview sample points and resulting colors directly in editor
