Release: IAR80 v1.1 [2011-12-12 update]

[i4dnf]

You can have many vertices as you want- it won't affect fps. Only too many and big textures can affect the perfomance. That's why I love FlightGear!

and now you tell me about the vertices ????

Onle in Single-player- on mp it will enlarge loading times and give bad lags!

i know, i know.. that's why i'm going to make a low detail AI version of this.

[i4dnf]

yup. just one question fred, noticed it now.. when alpha is 0 in the texture, the "resulting" specularity displayed should be 0.. but as it is now it appears to still be related to material shininess ( i've looked at the code and it looks right... to me. so i'm gona blame it on lack of support for the tangents )

Your code was relying on the red channel of the specular map. The code I committed use the Alpha. Beware not erasing the color when you set alpha to 0.

i know, but shouldn't the final result be roughly the same.. ? since i was using a gray specmap so the red channel in my specmap should have about the same value as the alfa channel in the combined normal/specmap..

[Tuxklok]

The shader/effect has been commited to CVS. Look at the top of Effects/bumpspec.eff to have an example of usage.

Thanks, I'll look at it now.

So fred...are the tangents and what not available automagically in some form like 'attribute vec3 tangent;' ala ogre..or does one need to do something in the effect file? Looking at the source made it seem like the latter but I'm not quite certain. Or perhaps it's just not quite yet ready for public tinkering?

After discussion with Tim, it has been decided to create tangents on demand to save GPU memory. attribute vec3 normal, binormal; are available if specified in the effect file. See the newly committed files.

Hmm, but if you don't declare the attribute in your actual shader, it wouldn't be compiled in and thus not use the memory regardless...no?

[fredb]

Hmm, but if you don't declare the attribute in your actual shader, it wouldn't be compiled in and thus not use the memory regardless...no?

No, you need to compute 2 arrays of vectors, and upload them to the GPU, even if the shader doesn't use it

[Tuxklok]

Hmm, I must be remembering incorrectly then I guess...been away from the field for too long. I'll have to play with this soon.

cheers!

[fredb]

Zan just told me that the bumpspec effect I committed to CVS has many mistakes and that should be why the specular is plain wrong. I'll fix that tonight.

[i4dnf]

I see. Many thanks again for taking care of it. And if it's not too much to ask, i was thinking it might me better to have the specular in a separate texture (i think it might be easier to tweak, modify.. also might benefit liveries that have scratches/chips on them where the underlying metal shows, that way one may use the same normal map, and just modify the specularity one). Hope i'm not pushing my luck too much

[Hooray]

well, i cant' take the credit for the bump shader. i just tried with a shader from the dangerdeep project, and it worked. it appears to be gpl, but i'll have to ask them.

That's really neat!
The dangerdeep project has been brought up here several times already, it's a really excellent idea to take their shaders and simply plug them into FlightGear, I am surprised no one else has tried this before

Maybe there are even other open source projects that provide reusable shaders (provided they are also GPL)? Might be worthwhile to do some more searching!

[fredb]

I see. Many thanks again for taking care of it. And if it's not too much to ask, i was thinking it might me better to have the specular in a separate texture (i think it might be easier to tweak, modify.. also might benefit liveries that have scratches/chips on them where the underlying metal shows, that way one may use the same normal map, and just modify the specularity one). Hope i'm not pushing my luck too much

People tries to save memory in order to allow more thing to show up on screen. If all the resources are grabbed by the Aircraft, the scenery would not have much and that kills fps (lower case ). The idea is not mine : see http://cs.elderscrolls.com/constwiki/in ... ormal_Maps

[fredb]

This is a not so gorgeous example of the bumpspec effect. Forget the white stripe. It is there because the model is not fully textured. My bad.



You can see the shininess has variations. I put a noise image in the alpha channel. The AIR FRANCE logo and the door have a bump map.

[i4dnf]

wow.. looks great.. i can't wait to test it too
about combining the textures into one, personaly i don't have a problem with it, i was just thinking that way might be easier for the livery makers.

[fredb]

We can imagine that the dirt / shininess variation be a part of the airframe like the normal map. The livery makers will only change the colors in most case. I doubt the livery system is able to switch a secondary texture anyway ( for the moment ). If the need is so urgent, they can duplicate the normal map.

[HHS]

Looks indeed nice- but the ambient color should be fixed !

That's really neat!
The dangerdeep project has been brought up here several times already, it's a really excellent idea to take their shaders and simply plug them into FlightGear, I am surprised no one else has tried this before

VDrift has a nice metallic shader, which gives a nice metallic effect which we knows from cars. Should work as well!

[fredb]

but the ambient color should be fixed !

Agreed, so I rewrote the shaders :



They are in CVS now.

[simbabeat]

Looks very nice if not a bit to dark.