W.I.P. Phoenix 1989 - 1991 F1 Street Circuit

[EKO Sim-Racing]

OK, I had opened a thread for Dallas, and had started posting things on there, but with my other track (and #1 priority for the last few months): Phoenix Street Circuit F1 Grand Prix from all 3 years (so 3 different versions) 1989 - 1990 - 1991.

I'll be posting progress here so that people don't think that I just opened a thread on Dallas and see nothing more (since I'm not concentrated on that for now) except on progress of other tracks.

So for now, here is the video I posted on the other thread, this time it's in the proper one

 

[EKO Sim-Racing]

Last night did some work on the walkbridges... I have some weird shading issues for the sponsors: sometimes they flicker or they have some strange effect to them. Any suggestions ?

 

[luchian]

sometimes they flicker

I assume sponsors are a separate plane, on top of the actual model ?
In which case, increase distance between model and the plane. Or make a cutout on the bridge model, the size of the sponsor (delete or reverse normals of cutout so that it's "filled" when looking from inside the bridge).

 

[Gunnar333]

And if they are separate planes try disabling shadow casting.

 

[Prototype]

Shadow BIAS is likely what you are after not cast shadow = false. You want the wall to make a shadow just not on itself. So use a shader with shadow bias as an option and increase until the problem goes away.

Could be a combination of all suggestions above...

 

[EKO Sim-Racing]

And if they are separate planes try disabling shadow casting.

Ok I disabled shadow casting of the ads...

 

[EKO Sim-Racing]

I assume sponsors are a separate plane, on top of the actual model ?
In which case, increase distance between model and the plane. Or make a cutout on the bridge model, the size of the sponsor (delete or reverse normals of cutout so that it's "filled" when looking from inside the bridge).

...and I increased the distances between the model and the plane... and still (depending on which side we're looking at it) still gives me the wacky issue:

 

[EKO Sim-Racing]

By the way luchian, I followed your tutorial for the real shading settings and maps for the tamac, this is the result I get, it's ok, but I think it can be way better from the examples you showed

 

[EKO Sim-Racing]

Could be a combination of all suggestions above...

And where can i find this shadow bias ?

 

[Prototype]

It will be in the shader attributes dropdown list in KS editor. I tried this out after Lilski posted that info.
An example of that is in ksPerPixelMultiMap_AT_NM_Detail. Not saying thats the shader to use, just using an example, but I used that to play around with shadowBiasMulti, and it started removing the self shadow from my Armco mesh for example. I haven't used it or explored that any further, but that's the gist of it, I think.

 

[luchian]

By the way luchian, I followed your tutorial for the real shading settings and maps for the tamac, this is the result I get, it's ok, but I think it can be way better from the examples you showed

I was merely the scribe, Lilski provided all the knowledge . All the textures are important, including the alpha in the diffuse. In your case, maybe the issue is with the detail not tiling too seamlessly ? Or with the multiplication numbers in the shader ? Don't really know just by looking at the images.

 

[Prototype]

 

[EKO Sim-Racing]

Yes, this seems to be the solution I needed. I just need to confirm tonight that this was the real problem. Can't wait to try it out

 

[EKO Sim-Racing]

GRRR... still flickering. Now it's just one on the main straight, all the other sponsor ads seem fine.

 

[EKO Sim-Racing]

However the shadowbias trick really helped my concrete walls look way better

 

[Gunnar333]

Difficult to say by not seeing the mesh model. If the billboard is two sided:
Maybe one side is not flipped correctly.
Or the normals are not facing in the right direction.
Or the corner vertices are wrong merged together.

 

[EKO Sim-Racing]

Difficult to say by not seeing the mesh model. If the billboard is two sided:
Maybe one side is not flipped correctly.
Or the normals are not facing in the right direction.
Or the corner vertices are wrong merged together.

The billboard is one-sided, the support of the billboard is 2-sided but merged into 1 mesh.
For some reason, I'm almost thinking it's a lighting issue depending on the light source and the way it hits the billboard, have you heard of such an issue before ?

 

[Gunnar333]

The billboard is one-sided, the support of the billboard is 2-sided but merged into 1 mesh.
For some reason, I'm almost thinking it's a lighting issue depending on the light source and the way it hits the billboard, have you heard of such an issue before ?

Sorry. Never had this problem.

 

[Norman Leslie]

Really looking forward to a release! Lots of nostalgia from F1GP on my Amiga back in the day, if you need a tester of sorts, I'll be only too happy to help!

 

[EKO Sim-Racing]

Really looking forward to a release! Lots of nostalgia from F1GP on my Amiga back in the day, if you need a tester of sorts, I'll be only too happy to help!

You'll have to wait a while before any release, there are 3 version years to do, all 3 have different configurations with the biggest one being between 90 and 91.