In each rendering pass, each object that a pixel light hits gets rendered.The cost of a forward renderer is proportional to the number of lights in the scene. Does your scene only have a couple realtime lights? Go with a forward path. No anti-aliasing (this is especially bad for VR which benefits greatly from MSAA to reduce shimmer and flickering lines)įorward rendering has a low upfront fixed cost, and thus is best for low complexity scenes, but its performance cost scales up with complexity.So many draw calls (2 draw calls per object in scene * 2 draw calls per light in scene).

They affect the entire scene, with an enormous light volume. Directional lights are very expensive in a deferred renderer.You’ll need an additional forward pass for this. Deferred renderers cannot render semi-transparent materials.Every light can be rendered as a per-pixel light, giving you accurate shading on normal & depth maps.Deferred rendering works best in scenes that require a large number of small realtime lights.Sidenote: UE4 only has a deferred rendering pipeline, which is one reason why many VR demos made with UE4 run slowly on old PCs. Scene complexity (number of objects that a light hits) does not affect performance. The cost of a deferred render is proportional to the number of pixels that a light hits (the light volume). Do you have hundreds of small realtime lights? Go with a deferred path. Here’s a quick overview to help you decide which pipeline is right for your application: Deferred Renderingĭeferred rendering has a very high upfront performance cost but it’s a fixed performance cost, allowing you to add a ton of geometry and a ton of lights without much extra cost. Forward rendering has a low upfront performance cost, it’s easier on the CPU with fewer draw calls, it runs well on mobile VR devices, and it supports anti-aliasing as well as translucent materials. It’s ideal for VR applications for several reasons.

Default Scene Controller awlays run as the first script… so that can be your ENTRY POINT… Note the toolkit supports Script Execution order… just look up script order in Unity… I use these rules when instantiating the script in the proper order.When in doubt, go with a forward rendering path. Set Lighting Panel to SUBTRACTIVE and set your shadow making light (Probably Directional) to MIXED mode… that will bake all the Ambient Lighting and Shadows into the lightmap texturesĪs far as “ENTRY POINT” for your script… that the thing… the toolkit allows you to attach scripts to game objects… For global type functionality… Again… Create a babylon script component and attach to your MASTER game object with Default Scene Controller… I call Mine Scene Controller… This can hold MANY different global type scripts. There is also a light settings component… Put that on your actual light game object… you can scale the Intensity of Directional, Point and Spot lights to BRIGHTEN UP your scene… As for your other question… Dont change the Intensity on the UNITY LIGHTING PANEL… that changes for BOTH unity and export… You wanna fine tune the intensity for your Babylon Export… there is enough light in the unity scene… Anyways… Use a Default Scene Controller component a MASTER game object… I like to call mine Scene Controller… On the Default Scene Controller is a Ambient Light Scale slider… play withthat to get more ambient light in your out babylon scene…

Unity ambient light