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4️⃣ Setting up the Controller

The main component of LTCGI is the LTCGI_Controller. It controls everything related to LTCGI and bakes the required data into new builds. Note that the controller itself does not get uploaded to VRChat or included into your final build! It only exists in the editor.

Putting the Controller into your Scene

To begin with, drag the LTCGI_Controller.prefab somewhere into your scene. It is recommended to put it into the root of your hierarchy. You must only ever have 1 of these in your scene!

Afterwards, your controller should look like this in the Inspector tab:

LTCGI controller after installation

(note that the version number above "Force Update" may vary)

Controller Usage

LTCGI controller section 1

Version Number (here: v0.9.3.99)The version of LTCGI currently installed. Useful for reporting bugs!
Force UpdateUpdates the state of the scene. Generally, LTCGI tries its best to keep this up-to-date for you automatically, but sometimes materials or objects may get out of sync. If you experience any kind of issue, pressing this button should be your first recourse. Can also be reached via Tools > LTCGI > Force Material Update
Precompute Static TexturesSee section on Static Textures.
Precompute On BuildRuns "Precompute Static Textures" on build. See section on Static Textures.

LTCGI controller section 2

Bake ShadowmapStarts a shadowmap bake using either the built-in lightmapper or Bakery (if installed). See section on Shadowmaps.
Bake Shadowmap and Normal LightmapStarts a shadowmap bake using either the built-in lightmapper or Bakery (if installed), then follows it up by a regular light bake. This is probably the button you want. See section on Shadowmaps.
DEBUG: Force Settings Reset after BakeSometimes a bake will fail and leave your project in an inconsistent state. This button may fix it. If no bake is happening, it should be safe to press this button anyway.
Clear Baked DataClear all shadowmap data. This will remove any existing shadowmap bakes and reset to unshadowed behaviour.

LTCGI controller section 3

Info section. Will show you stats about the objects this controller is handling.

Also shows information about AudioLink, if it is detected, and a button to re-detect if you import it into your project after LTCGI.

LTCGI controller section 4

LTCGI Configuration section. Contains general settings you'll probably need for your scene.

Video TextureIf you want to make use of real-time video reflections and lighting, you need to put a (Custom) Render Texture in this field. Note that by virtue of this being a single field, you can only ever have a single video input into LTCGI. For more flexibility, you can use UV Maps on your LTCGI_Screen components or use the U# API to change the video texture at runtime.
Static TexturesIn addition to the one realtime video, you can have multiple static images reflecting as well. These must be the same size. See Static Textures.
Dynamic RenderersObjects that receive LTCGI lighting but can change materials at runtime (via material swap animations or scripts) need to be listed here. This is a performance optimization, as other objects can be updated at once by setting properties on their shared materials.

LTCGI controller section 5

Expert Settings. Best to leave alone if you don't know what you're doing!

Custom Blur ChainIf checked, the controller will not touch the blur CRTs in the "Prefilter Blur" folder. It is up to you to set them up correctly. This should not be used for changing video texture at runtime, use the U# API instead!
Lightmap IntensityApply an intensity multiplier before baking the lightmap. Offset with Lightmap Multiplier at runtime.
Lightmap MultiplierMultiply lightmap with this before applying to diffuse. Useful if you have multiple lights next to each other sharing a channel. Applies at runtime, changes are visible immediately in editor.

Global Shader Options

Affect all lights and renderers in the scene. For advanced users. Note that you need to click Apply at the bottom after changing any of these!

Click Apply