Very dark scene on PCs with onboard graphic

[Myjestic]

Hi all,

if I open my scene in a browser on a PC with an onboard GPU like Intel HD graphics 4000, everthing is very dark. I use some black fog in my scene to simulate night / day.

This behaviour is indepentend from the browser I use.

Does anyone have an explanation for this?

[Myjestic]

I found the problem. It was a matter of this emissive, diffuse, specular etc texture thing ^^

Strange that this is so different on onboard GPUs.

[Wingnut]

Yeah, Myj, would you mind keeping this thread UN-solved? 

I think this needs to be studied/researched a bit more.  I think we need to determine an answer to your good (un-asked) question.  (why is it acting this way?) 

AND, would you mind creating/finding a simple playground that reproduces the issue?  Or... do you see the same issue happening in our materials playground?

Can I ask what version of BJS you are using... when the issue is seen?

Anything fancy, such as PBR, HDR, shaderMaterial, procedural textures, post-processing effects?  Or can you see it in simple materials?

Same for both textured and/or only-colored? 

Are you using any scene.ambientColor and material.ambientColor/ambientTexture?  (thx for help)

[Myjestic]

Hey Wingnut,

you are right. This behaviour is a little bit strange. 

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Yeah, Myj, would you mind keeping this thread UN-solved? 

done

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AND, would you mind creating/finding a simple playground that reproduces the issue?  Or... do you see the same issue happening in our materials playground?

I will try to do so, as soon as I find some time.

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Can I ask what version of BJS you are using... when the issue is seen?

BJS 3.0

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Anything fancy, such as PBR, HDR, shaderMaterial, procedural textures, post-processing effects?  Or can you see it in simple materials?

I am using everthing of the listed fancy stuff except HDR. But I disabled everthing except the textures. The only texture I used with my meshes was diffuseTexture. Now with emissiveTexture there is no difference between onboard and "power" gpu.

[aWeirdo]

It could very well be a bug in intel graphics, it's not really an area they excell at :b 

[Pryme8]

Post a PG, I can debug this as I am fortunate enough to have the same on-board chip on one of my CPU's and access to other CPU's with on-board and others with some beefy GPU's.

I have not been able to recreate on a GPU vs On-board.