Lightmap maps problem

Unity Engine
1

Hello guys.
I lightmapped my scene, which is very large. It tooked 4h48m, and it rendered 329 maps. Now my biggest problem is that Unity continues to Debug.WarningLog (“Lightmap index must be less then 256”).
My scene is very big, and I cannot divide it into small scenes. So what I have to do?
I have tought to increase the resolution from 1024px1024px to 2048px2048x, so with this I am sure to get 329/4 maps, right?
How can I do this? else what can solve my problem?
Thanks

2

You need to decrease the texels-per-world-unit value on the Bake tab.

3

But then I will decrease also the quality, this might cause low resolution shadows, right? Is not there a solution which permit me to have more pixels in a map?

4

Decrease the texels-per-world-unit value to get a packing that fits into 255 maps, and then increase the base texture resolution from 1024x1024 to 2048x2048.

It’s possible that just increasing the texture resolution will do this but I don’t know. I imagine you have to do it via the Beast XML file, if it’s supported at all.

5

How to increate the resolution from 1024x1024 to 2048x2048 via Beast XML file? using the 2048x2048 resolution I get 329/4 maps, I mean:
329 / ((2048^2)/(1024^2)) = 82.25 maps!
This is very important for big environments, Unity has to give a simple option where you will assign the resolution directy! And also the limit of 254 maps is a time wast. Unity has to be designed also for big environments, as this also export for PS3 and XBOX, Unity needs to be more professional.

6

Hello guys, I am thankfull to the community, I found this which is looking that resolved my problems, now I will put to render the lightmap this night, now I am going to sleep, it’s 03:24 AM!
I am using this script

@MenuItem ("Lightmap/Change Size/256x256")
static function LMqK () {
	LMSize (256, 256);
}

@MenuItem ("Lightmap/Change Size/512x512")
static function LMhK () {
	LMSize (512, 512);
}

@MenuItem ("Lightmap/Change Size/1024x1024")
static function LMK () {
	LMSize (1024, 1024);
}

@MenuItem ("Lightmap/Change Size/2048x2048")
static function LMDK () {
	LMSize (2048, 2048);
}

@MenuItem ("Lightmap/Change Size/4096x4096")
static function LMFK () {
	LMSize (4096, 4096);
}

static function LMSize (width : float, height : float) {
	Debug.Log ("Lightmap Resolution was: " + LightmapEditorSettings.maxAtlasWidth + "x" + LightmapEditorSettings.maxAtlasHeight + "; and will be: " + width + "x" + height);
	LightmapEditorSettings.maxAtlasWidth = width;
	LightmapEditorSettings.maxAtlasHeight = height;
	Debug.Log ("Lightmap Resolution is: " + LightmapEditorSettings.maxAtlasWidth + "x" + LightmapEditorSettings.maxAtlasHeight + "; and the target was: " + width + "x" + height);
}