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P3D v4 Shadow errors on reflective surfaces

Horst18519

Horst18519

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I ran into a problem I never saw before - I'm not sure if this is completely related to P3Dv4 but it looks like. On a textured box using a specular map I get these weird shadow errors when getting very close to the object:

p3dv4reflect_1.jpg
p3dv4reflect_2.jpg


It only happens if "simulation object shadow" cast & receive is enabled in P3Dv4 graphics settings.
It doesn't matter if I use a custom reflection map or if I blend texture / environment via diffuse or specular alpha. As soon as I enable those shadow options I get this effect on all reflective objects in my scene.

Has anyone ever come across that problem?
 
Hi Thorsten:

That is indeed a curious anomaly; is that 3D volumetric grass I'm seeing in the "weird shadow effect" image area ? :scratchch

GaryGB
 
Horst18519 said:
http://www.fsdeveloper.com/forum/threads/shadow-errors-on-reflective-surfaces.441076/#post-781476

No, it's the custom cubemap.
Click to expand...

Well, yes, I understand that the custom cubemap is what we are looking at, but what I meant is, within the image area of the custom cubemap, part of the image seen is suggestive of "3D volumetric grass", IMHO.

Would I be correct that, as far as you know, one would have had to purposely include that (what I refer to as "3D volumetric grass") image in the textures applied to the cubemap in order for it to be seen "reflected" in a glass window of the building ?

And would I be correct that, as far as you know, in P3Dv4 there is no mechanism (yet) to "reflect" scenery objects from the surrounding 'environment' independent of what you chose to include in a custom cubemap ? :scratchch

GaryGB
 
Erm... :scratchch ... I think I didn't fully understand the question.
I did not activate custom reflections in the graphics settings so the reflections are solely default cubemap. There is no 3D grass in the scenery to answer the other question. The bug seems only related to self-shadowing of reflective objects - independently of what is reflected.
 
Thanks for pointing those out. I had found the 2nd one as well but wasn't sure that was the same problem. First one looks like though. Since I now found that behavior in other sceneries as well I guess it's a P3D bug that in some occasions is more obvious than in others. I see quite a number of developers flag all their content with "no shadow" to avoid that but I guess that's not really the best option.
 
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