Grass is spawned only on some terrains when using multiple terrains

[gigi1]

I have 4x4 terrains 1km each.

When I spawn Gaia Pro Sample biome(default settings), the trees and rocks are spawned on all terrains, but the grass missing on some terrains.

t_0_0 - no grass

t_0_1 - no grass

t_0_2 - yes grass

t_0_3 - yes grass

t_1_0 - no grass

t_1_1 - no grass

t_1_2 - yes grass

t_1_3 - yes grass

t_2_0 - yes grass

t_2_1 - yes grass

t_2_2 - yes grass

t_2_3 - yes grass

t_3_0 - yes grass

t_3_1 - yes grass

t_3_2 - yes grass

t_3_3 - yes grass

I set biome Fit to world, but no matter what I do will never spawn grass on those terrain, even if I disable all other 15 terrains and make active only terrain t_0_0.

[Josh]

Did you click Spawn World or Spawn Local. For multi terrain you need to press Spawn World

This will fit to each terrain and spawn over all terrains even ones that are unloaded from the terrain loading system in Gaia.

[gigi1]

I always click Spawn World.

Indeed it has something to do with the position, I just moved t_0_0 to t_2_0 position, the grass is spawned but do not respect terrain texture rule.

I tried to make a new project same problem.

I'm on Ubuntu Linux if that makes any difference.

[Bryan]

5 hours ago, gigi1 said:

I always click Spawn World.

Indeed it has something to do with the position, I just moved t_0_0 to t_2_0 position, the grass is spawned but do not respect terrain texture rule.

I tried to make a new project same problem.

I'm on Ubuntu Linux if that makes any difference.

Can you please check the visualization of the grass and the terrains? 
What render pipeline are you using? Are you using Flora? 

 

[gigi1]

Visualization show that will spawn on all terrains.

I'm using standard pipeline.

Not using Flora.

[Bryan]

Can you show me the biome and the spawner inspector.

 

[gigi1]

[gigi1]

The four terrains selected will not get grass

[Bryan]

13 hours ago, gigi1 said:

Can you please uncheck the masks in the spawner: 


I am wondering if the terrain texture is the issue here. 
Is the texture on the terrain the same texture in the terrain texture mask? 
If not you could select this and change it to the correct texture. 

You could try both options disable both masks, then spawn world. 
Or just make sure that the mask terrain texture is the correct one. 
 

[gigi1]

Disabling masks changed nothing.

Also disabling Grass_Patch_03 changed nothing

But disabling only Slope Mask of Grass_Patch_03 made it spawn Purple and Red Flowers but no Grass.

Adding a new rule for grass and letting Grass_Patch_03 on as a dummy solved the problem

[Bryan]

The information that the wrong grass prototype was spawned sounds like there might be something unusual about the grass prototypes on the affected terrains - could you please check in the terrain inspector if those terrains do e.g. have duplicated or missing prototypes in comparison to the terrains that are working?

If you have the feeling something is in disarray, you can remove all grass prototypes from the grass spawner via Advanced > Resource Management > Remove Resources



On the next spawn Gaia should put the required resources back on the terrain.

[gigi1]

Terrains missing grass do not have any prototypes.

Tried everything but the only working solution is to have a dummy first rule with no prototype.

I can live with that.