Lightmap (raytrace) not working?

[abgenullt]

Godot version:
Godot 3

Hello,

I've created a simple room in blender and exported it with the better collada exporter.
Now, I'm trying to create a lightmap. With ConeTrace mode, everything looks ok but in RayTrace mode it looks very strange...

ConeTrace:

RayTrace:

You can have a look at the project.

Is it a bug or have I done something wrong?
house_viewer.zip

[ghost]

ConeTrace:

RayTrace:

Mine's not as weird. What are the parameters used? Video driver? (not sure if related)

[abgenullt]

I've used NVIDIA NVS 310 (driver v. 382.16) but I could test on AMD Rx480, if it is graphics card related.

I used the default parameters for the baked lightmap node and a import texel size of 0.01

[reduz]

I will be changing code related to baking in 3.2, so this is on hold.

[NovemberDev]

I have the same issue on 3.2.4, here is my setup:

i5, GTX1050m
(Force open it despite the missing textures)
Lightmap_Test.zip

[Calinou]

The lightmapper will be rewritten for 4.0, but it's unlikely this will be fixed before as few contributors are knowledgeable in this area.

Edit: The new CPU lightmapper should fix this in 3.2.x once it's merged.

[KoBeWi]

Looks still valid in 3.2.4 beta2 (but might be fixed soon, see linked PR above)

Here's the result from 4.0-dev:

Looks fixed, but not sure if I configured it properly.

[Arnklit]

I'm pretty sure the issue simply is that direct lighting doesn't work on the raytraced version. There is no difference in the result of baking with lights set to bake mode indirect and bake mode all when using the raytracing option.

Conetraced indirect:

Conetraced all:

Raytraced indirect:

Raytraced all:

[akien-mga]

Fixed by #44628.