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Complete foliage instancing and scattering solution: terrain foliage support, GPU occlusion, painting and scattering tools, instancing groups, prefab support, and unparalleled performance.Complete Instancing and Placement SolutionFlora is a robust and efficient instancing rendering system designed for Unity 2021.3 and later, enabling you to enhance environments with vast amounts of vegetation and instances without compromising performance.DocumentationDiscordSupport ForumRoadmapKey FeaturesTerrain Support: Fully supports instancing terrain details and trees, ensuring smooth integration and batching with other instances. Background loading of terrain foliage using Burst jobs eliminates performance hitches.Instance Painting: Easily paint instances on any mesh surface. Instances are grouped by a global grid and added as children of the surface, allowing for easy management. Populate your scenes with detailed vegetation and objects effortlessly.Prefab Support: Manage and customize foliage-covered prefabs with ease. Create complex prefabs, such as overgrown buildings or detailed vegetation patches, to introduce variation into any scene.Performance: Flora 2.0 is rebuilt with performance as the top priority. Features include zero frame GCAllocs, Burst optimized jobs for uploading and culling, a modern GPU resident scene, dual-phase culling, and on-demand GPU streaming to maintain high performance and low GPU memory usage in complex scenes.Rendering and PerformancePipeline Compatibility: Works with any render pipeline, including Built-in or custom.Modern Indirect Rendering: Utilizes DX11, DX12, Vulkan, Metal, and modern console APIs.Advanced GPU Scene Management: Employs a single buffer system, burst-mapped uploads, SOA layout, dynamically resizing buffers, and packed GPU transforms.Full Terrain Support: Dynamically loads terrain detail and tree cells in the background using jobs.Dual-Phase Culling: Combines Burst Jobs with GPU culling to reduce GPU load.GPU Occlusion Culling: Implements an extremely performant Hi-Z occlusion system.CPU Occlusion Culling: Supports Unity's baked occlusion system for lower-end platforms.Dynamic Density: Adjust instance density dynamically based on distance with a customizable falloff.Global Density: Adjust instance density for the entire scene with a single slider.GPU Streaming: Dynamically streams instances to optimize GPU memory usage.LOD Cross-Fade: Supports both animated and transition-based LODGroups with cross-fade. Materials dynamically switch between cross-fade and opaque variations.Optimized Batching: Instances are batched by material, regardless of placement.Shadow Optimization: Share shadow materials via mesh or global material, with customizable LOD bias and clamping.Light Probe Support: Updates interpolated light probes per instance based on ambient lighting changes.Advanced Culling: Implements true shadow silhouette and frustum culling to avoid rendering off-screen objects.Instance Context and ToolsEasy Access: Toggle with Tab or scene view context.Built-in Tools: Use standard tools (move, rotate, scale) on any instance or selection.Painting Tools: Use brushes for placing, painting, erasing, filling, and scaling instances.Placement Settings: Customize density, radius, scale/rotation randomization, and slope/height masks.Intuitive UI: Modern overlay interface for seamless environment work.Custom Shortcut Context: Ensures no conflicting shortcut keys.Integration and ToolsPrefab Support: Paint and edit instances within your prefabs. Create an overgrown house prefab, and drop it in a scene.Selection Support: Allows instance selection directly from the scene hierarchy.Prefab Conversion: Convert prefabs to instances in the scene with two clicks.ShaderGraph Integration: Automatic ShaderGraph patching with no modifications needed.DOTS-Enabled Property System: Supports ShaderGraph hybrid properties, with property painting via the property painter tool or scripts.Rendering Debugger: Full integration with SRP's rendering debugger. Debug scenes both in the editor and at runtime to see exactly what's happening in the renderer.ManagementRuntime Access: Add, remove, and query instances efficiently at runtime.Prefab Proxies: Maintain prefab instances with colliders and scripts while still rendering with Flora.Enableable Instances: Enable or disable any instance.Spatial Hashing: Utilizes a global hierarchical grid system for efficient instance management.CompatibilityBOXOPHOBIC - The Visual EngineRequirementsUnity 2022.3Unity 6.0Platform Compute Shader SupportPackagescom.unity.burst: ≥1.6.6com.unity.collections: ≥1.4.0com.unity.mathematics: ≥1.2.5com.unity.profiling.core: ≥1.0.2com.unity.render-pipelines.core: ≥12.1.6com.unity.shadergraph: ≥12.1.6com.unity.settings-manager: ≥2.01