[RESOLVED] ZOrder broken when there is Fog?

aceio76 · 09-26-2011 03:58 AM

Using this image as reference:
[Image: grassthru.jpg]

I am drawing fog using a custom object, with the following snippet:

Code:

void ObjFogLocal::drawBlend()

{

   if(Frustum(Ball(radius, position)))

      FogDraw(Ball(radius, position), density, color);

}

I need to exclude what's behind from blending.

Any advice with this? It is blending everything when fog is on.

Zervox · 09-26-2011 06:55 AM

Have you tried Renderer.blend_objects_affect_depth_based_effects?
I am not sure but could possibly be the reason(don't know if this was an issue before the update)

aceio76 · 09-26-2011 02:28 PM

Hi Zervox, I will try it. But what does it do?

Edit: I saw that setting and it is enabled by default.

aceio76 · 09-26-2011 04:13 PM

Just as additional information, depending on the camera angle when looking on the walls, the objects behind stop appearing through the walls (fixes itself). This sounds like a lighting issue and I can't find a way to control it further.

Zervox · 09-26-2011 04:22 PM

did you try disabling it?

Harry · 09-26-2011 04:52 PM

Few months ago I have similar problem and Esenthel wrote me to not use local fog. So try maybe with Global Fog.

aceio76 · 09-26-2011 08:32 PM

Global fog is horrible and I'd rather not use fog if it's global.

I will try to disable Renderer.blend_objects_affect_depth_based_effects.

I will also try to use volumetric fog and see how much more load it does.

Renderer.blend_objects_affect_depth_based_effects=false; does not help here.

Sorry, I was confused with another engine, we don't have volumetric fog here.

aceio76 · 09-27-2011 03:04 AM

Hi Harry, was it mentioned what was wrong with using local fog?

Harry · 09-27-2011 10:30 AM

Hi,

Yes, check here - http://www.esenthel.com/community/showth...p?tid=3855 post #12

(07-01-2011 10:52 AM)Esenthel Wrote: FogDraw will not affect blended meshes - it's impossible. so if you want smooth fog for blended meshes use either sky fog (Sky.frac and Sky.atmosphericDensityExponent) or global 'Fog'

**Esenthel** · 09-27-2011 12:42 PM

Hi, yes the Z Order is a bug (grass shouldn't be visible when behind a wall), I'll fix it quickly.

And yes, currently local fog does not affect blended objects.

Wireframe · 09-27-2011 03:39 PM

Can you add in near future, that the local fog does affect blended objects?

aceio76 · 09-27-2011 04:26 PM

Thanks for the fix, Esenthel. I've verified bug is gone.

[RESOLVED] ZOrder broken when there is Fog?
Author	Message