pipmak-users — Content creation for the Pipmak Game Engine

Re: [Pipmak-Users] [pipmak-users] Screenshots

[Riko-kun <wa...@ma...>]

Well yeah, i woul'd like to have this feature. It woul'd be greate for
posting images on blendernations or something ^_^ I know i can grab it using
printscreen, but then i have to crop it and save it in separate prog and i'm
somehow lazy to do that ^_^

If you would implement this feature, i think it woul'd be best if the images
was saved inside the engine directory (that means in the directory with
pipmak.exe on winz)

Cheers, Marek


Christian Walther wrote:
> 
> Riko-kun wrote:
>> Is there some lua code i can manage to export current view to lets
>> say .png file?
> 
> Currently there is no way of taking screenshots from within Pipmak. 
> Would that be a useful feature for you? If so, can you explain what you 
> would use it for, so I get an idea of how it should work? E.g., if the 
> screenshot goes to a file, as you suggest, where should that file be 
> placed? Wouldn't it be more useful to have the screenshot directly in an 
> image object that you can use in a patch?
> 
> Of course, to take screenshots from outside of Pipmak, you can just use 
> whatever means your OS provides for that purpose (cmd-shift-3 etc. on 
> Mac OS, Print Screen on Windows, ...).
> 
>   -Christian
> 
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Re: [Pipmak-Users] [pipmak-users] Screenshots

[Christian W. <cwa...@gm...>]

Riko-kun wrote:
> Is there some lua code i can manage to export current view to lets
> say .png file?

Currently there is no way of taking screenshots from within Pipmak. 
Would that be a useful feature for you? If so, can you explain what you 
would use it for, so I get an idea of how it should work? E.g., if the 
screenshot goes to a file, as you suggest, where should that file be 
placed? Wouldn't it be more useful to have the screenshot directly in an 
image object that you can use in a patch?

Of course, to take screenshots from outside of Pipmak, you can just use 
whatever means your OS provides for that purpose (cmd-shift-3 etc. on 
Mac OS, Print Screen on Windows, ...).

  -Christian

[Pipmak-Users] [pipmak-users] Screenshots

[Riko-kun <wa...@ma...>]

Hi.
Do not think i'm lazy or anything, i did some searching before posting this,
but din't find anything about how to get a screenshot out of Pipmak. Is
there some lua code i can manage to export current view to lets say .png
file?
Thanks a lot.
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Re: [Pipmak-Users] Linked libraries

[A T. <wgs...@ya...>]

 I don't know for sure if it's physfs or not, but I tried doing some of the same things that caused the proble, with the mouse before (like moving from node to node, and clicking on handles), and it behaved fine.

 And lua 4, 5, and 5.1, and physfs are available from the Debian etch repositories, but i don't know about other distributions, so I guess it's best to be safe.

Thanks,
Aidan

Christian Walther <cwa...@gm...> wrote: >  I take back what I said before about the window edge resistance with 
> the mouse grabbing, because I stopped having trouble with it when I used 
> the pre-compiled executable which has the physfs library staticly linked in.

Are you sure that's caused by Physfs? I have no idea why that would have 
anything to do with it...

>  But I also wanted to know why the Pipmak source documentation says to 
> compile Lua yourself instead of using a package from your distribution.  

No specific reason. I just assumed that Lua and Physfs were less likely 
to be available as packages from a distribution than SDL and the other 
dependencies. Plus they're easy to build without having to install them 
and link in statically.

> So, would it make a difference if I just used the Lua5 package from 
> Debian, instead of getting the official source from the Lua project?

If you have Lua 5.0.x, I don't think so. Lua 5.1 has some small changes 
in the language, but I assume it should work as well. For the official 
release I've deferred updating to it until version 0.3, when backwards 
compatibility can be broken.

  -Christian


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Re: [Pipmak-Users] Linked libraries

[Christian W. <cwa...@gm...>]

>  I take back what I said before about the window edge resistance with 
> the mouse grabbing, because I stopped having trouble with it when I used 
> the pre-compiled executable which has the physfs library staticly linked in.

Are you sure that's caused by Physfs? I have no idea why that would have 
anything to do with it...

>  But I also wanted to know why the Pipmak source documentation says to 
> compile Lua yourself instead of using a package from your distribution.  

No specific reason. I just assumed that Lua and Physfs were less likely 
to be available as packages from a distribution than SDL and the other 
dependencies. Plus they're easy to build without having to install them 
and link in statically.

> So, would it make a difference if I just used the Lua5 package from 
> Debian, instead of getting the official source from the Lua project?

If you have Lua 5.0.x, I don't think so. Lua 5.1 has some small changes 
in the language, but I assume it should work as well. For the official 
release I've deferred updating to it until version 0.3, when backwards 
compatibility can be broken.

  -Christian

[Pipmak-Users] Linked libraries

[A T. <wgs...@ya...>]

Hello again,

 I take back what I said before about the window edge resistance with the mouse grabbing, because I stopped having trouble with it when I used the pre-compiled executable which has the physfs library staticly linked in.

 But I also wanted to know why the Pipmak source documentation says to compile Lua yourself instead of using a package from your distribution.  So, would it make a difference if I just used the Lua5 package from Debian, instead of getting the official source from the Lua project?  I can see now why it says to do this for the physfs library.

 I hope to actually create a game with Pipmak soon, but I still need to figure out my 3D modeling program.

Thanks,
Aidan

       
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Re: [Pipmak-Users] [pipmak-users] hotspot maps

[Riko-kun <wa...@ma...>]

Ok. I just walked through the wiki page real quickly. I was looking for Xvid
too, but it is problematic too. Vorbis is good for me. It's good to know you
are considering implementing video support. It's just that i vould like to
have some FMVs in my "game".
Going back to learning about lua and stuff, see you later.
Riko


Christian Walther wrote:
> 
> Riko-kun wrote:
>> That's true. so what about ffmpeg? http://en.wikipedia.org/wiki/FFmpeg
>> That shoul'd be ok, even Blender is using it in some builds. Anyway,
>> video
>> support woul'd be awsome ^_^
> 
> FFmpeg implements a lot of patented algorithms as well. I don't know if 
> it can be compiled in a way that only includes unproblematic codecs.
> 
> Right now I'm leaning towards using Ogg Theora exclusively, at least for 
> the first step, as I already did with Vorbis for sound. But nothing has 
> been decided yet, and video support is still a considerable way off in 
> the future.
> 
>   -Christian
> 
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Re: [Pipmak-Users] [pipmak-users] hotspot maps

[Christian W. <cwa...@gm...>]

Riko-kun wrote:
> That's true. so what about ffmpeg? http://en.wikipedia.org/wiki/FFmpeg
> That shoul'd be ok, even Blender is using it in some builds. Anyway, video
> support woul'd be awsome ^_^

FFmpeg implements a lot of patented algorithms as well. I don't know if 
it can be compiled in a way that only includes unproblematic codecs.

Right now I'm leaning towards using Ogg Theora exclusively, at least for 
the first step, as I already did with Vorbis for sound. But nothing has 
been decided yet, and video support is still a considerable way off in 
the future.

  -Christian

Re: [Pipmak-Users] lens effects in Pipmak with Lua

[Andrea V. <and...@gm...>]

Hello,

This is just a track to how implements lens flare effect in Pipmak using 
only lua programming
.
You needs only six image for your scene plus 2 trasparent PNG:

a) sun.png (could be simply a white circle with transparent background)
b) effect.png (a white pentagon rotated (30 degrees?) on transparent background)

This works, but it must be improved, because I have placed effects with an 
empirical method.... 

1) We need a formula for describing the position of pentagons
starting from azimuth and elevation of the view.

2) Drawing of effects must done with a loop, so we could pass as parameter 
the number of the pentagons...

Who want improve this code? 

---------------------------------------
cubic {
	"front.png", --front
	"front.png", --right
	"front.png", --back
	"front.png", --left
	"ceil.png",  --top
	"floor.png"  --bottom
}

pipmak.setverticalfov(70)
p0=patch {face=2, x=320-40, y=80 , w=80, h=80,image="sun.png",visible=true }
p1=patch {face=2, x=320-25, y=100, w=50, h=50,image="effect.png",visible=true }
p2=patch {face=2, x=320-15, y=120, w=30, h=30,image="effect.png",visible=true }
p3=patch {face=2, x=320-20, y=140, w=40, h=40,image="effect.png",visible=true }
p4=patch {face=2, x=320-10, y=170, w=20, h=20,image="effect.png",visible=true }
p5=patch {face=2, x=320-8,  y=200, w=16, h=16,image="effect.png",visible=true }


p1:setcolor(1,1,1,0.4)
p2:setcolor(1,1,0,0.6)
p3:setcolor(1,0,1,0.4)
p4:setcolor(1,0,0,0.5)
p5:setcolor(0,0,1,0.4)

onenternode( function()
  pipmak.schedule(0.1, 
    function()
      az,el=pipmak.getviewdirection()
      --pipmak.printinplace(az.." "..el)
      
      x,y,f=p1:location()
      x=320-25+(90-az)*2
      y=100+(15-el)*2
      p1:moveto(x,y,f)

      x,y,f=p2:location()
      x=320-15+(90-az)*3
      y=120+(15-el)*2.5
      p2:moveto(x,y,f)
      
      x,y,f=p3:location()
      x=320-20+(90-az)*4.5
      y=140+(15-el)*6
      p3:moveto(x,y,f)
      
      x,y,f=p3:location()
      x=320-10+(90-az)*6
      y=170+(15-el)*8
      p4:moveto(x,y,f)            
      
      x,y,f=p3:location()
      x=320-8+(90-az)*10
      y=200+(15-el)*12
      p5:moveto(x,y,f)
            
      return 0.1
    end)
  end)
--------------------------------------



Bye.


Andrea

Re: [Pipmak-Users] [pipmak-users] hotspot maps

[Riko-kun <wa...@ma...>]

Thank you for your answers.

>> And i'm still hoping for divx support for FMVs in my games ^_^
>Hmm, isn't divx some kind of MPEG-4 and therefore patent-encumbered? 
>That would pretty much rule out its use in Pipmak, as I don't want to 
>have potential users for commercial projects turned away by fear of 
>lawsuits. And paying licence fees isn't much of an option for an 
>open-source project either.

That's true. so what about ffmpeg? http://en.wikipedia.org/wiki/FFmpeg
That shoul'd be ok, even Blender is using it in some builds. Anyway, video
support woul'd be awsome ^_^

>By the way, if you plan to continue using this mailing list, please 
>consider subscribing on 
>https://lists.sourceforge.net/lists/listinfo/pipmak-users . That would 
>save me the work of manually approving all your posts. You can turn off 
>mail delivery if you only read the list on Nabble or Gmane.

Done that, hope it works...
Riko

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Re: [Pipmak-Users] [pipmak-users] hotspot maps

[Christian W. <cwa...@gm...>]

Riko-kun wrote:
> How can i create the hotspot map? Oh yeah, i know there is
> some tutorial on wiki, but let's say that it's little bit vage. I was
> looking at hotmaps in demo and such, but i still don't get it. Is it some
> kind of puzzle? ^_^

As it seems Andrea's answer has helped you solve the puzzle, I was going 
to suggest that you improve the vague description on the wiki, but I've 
just seen that Andrea has already taken care of that - thanks Andrea!

> Have you any clue, whne can we expect new version of Pipmak, by the way?

When it's done :). There are still a couple of bugs that need to be 
fixed, and I need to finish the Lua command line panel and table 
inspector that I'm working on. As you've probably noticed, I haven't had 
much time to work on Pipmak lately (I haven't even gotten around to have 
a look at Andrea's months-old contributions on the developer list - 
sorry Andrea). I hope I'll be able to complete the long overdue release 
over the holidays, but no promises, as usual.

> And i'm still hoping for divx support for FMVs in my games ^_^

Hmm, isn't divx some kind of MPEG-4 and therefore patent-encumbered? 
That would pretty much rule out its use in Pipmak, as I don't want to 
have potential users for commercial projects turned away by fear of 
lawsuits. And paying licence fees isn't much of an option for an 
open-source project either.

  -Christian


By the way, if you plan to continue using this mailing list, please 
consider subscribing on 
https://lists.sourceforge.net/lists/listinfo/pipmak-users . That would 
save me the work of manually approving all your posts. You can turn off 
mail delivery if you only read the list on Nabble or Gmane.

Re: [Pipmak-Users] [pipmak-users] hotspot maps

[Riko-kun <wa...@ma...>]

Ok, it works. I just needed to know, how to export that panoramatic view.
Thank you very much.
Have you any clue, whne can we expect new version of Pipmak, by the way? I'm
using SVN build 157 now, because of it's authoring features, but some new
features woul'd be greate.
The fulscreen handling from build 160 for exmple. And i'm still hoping for
divx support for FMVs in my games ^_^
Riko
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Re: [Pipmak-Users] [pipmak-users] hotspot maps

[Riko-kun <wa...@ma...>]

Hi.

Thank you very much.
I have found about this function already, but i wasn't able to implement it
yet, cause i have never used lua scripts before. I will try it and hopefully
it will work. Thanks

Riko
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Re: [Pipmak-Users] Ideas for lens effects and sun glare in Pipmak

[Andrea V. <and...@gm...>]

Hi Simon, (or John?)

Thank you for your ideas,
The effects that you are talked are very nice, but I think that there are a lot
of other features to implements in Pipmak before...

BTW, you can found an entry at the end of the TODO list speaking 
about effects...
(Lighting effects: flickering light, sunglare, ... Rippling water, 
..Bugs flying around (like in Riven).  )

About lens glare, I think it's not difficult implements this in lua
using a combination of "overlay nodes" with semi-transparent png and
"pipmak.getviewdirection()"...


Bye.

Andrea

Re: [Pipmak-Users] [pipmak-users] hotspot maps

[Andrea V. <and...@gm...>]

Hi,

And before all, Welcome to this forum!

Pipmak is still in a development stage, some parts are quite finished, other
could be improved.

The idea is to create hotspots directly from the Pipmak window, 
but this feature is in a very initial stage, 
and you should wait next and next releases.

But isn't difficult create hot spot with a graphic application like 
The Gimp, Paintshop Pro or Photoshop.

You have only to create the "equirect image" of your node, this is simple,
because is sufficient to add some extra code to your node.lua:

----------------------------
cubic {"front.jpg","left.jpg","back.jpg","right.jpg","top.jpg","bottom.jpg"}

onenternode(
  function() 
    pipmak.saveequirect() 
  end)
----------------------------

When you enter in the node, The onenternode section execute statement
pipmak.saveequirect() which reprojects the current (panoramic) node to an
equirectangular image and saves it as equirect.bmp inside the node folder. 

After that you can open "equirect.bmp" with a graphic program which support
layers , create a second, empty layer over the image, 
and color the area which you want to use as an hotspot,
different hotspots have different colors taked from palette,
Color index 0 means background, color index 1 is the first hotspot,
index 2 the second etc, 
you can found a particularly suitable palette with 
easily distinguishable colors in the source distribution of Pipmak in
"hotspot-palette.gif" located in the "extras" folder,
or you can use palette taken from the hotspot maps in the demo.

Now you can save the second layer created as a PNG 24 bits 
and use it as hotspot map.

Another way (only programmatic, i.e.: you don't need any extra program)
is to use "handle" instead "hotspots".

With "handles" you can specify rectangular regions 
(using elevation and azimuth) in your panoramic node:

handle { 
  az = 90,
  el = 45,
  w  = 90, 
  h  = 90,
  onmouseup = function(self)
    pipmak.dissolve(2)
    pipmak.gotonode(next_node)
  end,
  cursor = pipmak.hand_forward
  }

Where az,el,w,h are expressed in degrees and next_node is you target node.

You can create every handles you need, 
the limitation respect hotspots is which handle can be only rectangular,
instead hotspot could have every shape. 
 
I hope that this could be useful for you.

Bye.    

[Pipmak-Users] [pipmak-users] hotspot maps

[Riko-kun <wa...@ma...>]

Hi.
I have just find this engine and it looks nice i have to say. I have just
one question. How can i create the hotspot map? Oh yeah, i know there is
some tutorial on wiki, but let's say that it's little bit vage. I was
looking at hotmaps in demo and such, but i still don't get it. Is it some
kind of puzzle? ^_^
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[Pipmak-Users] Ideas for lens effects and sun glare in Pipmak

[Simon J. <sim...@ya...>]

Hi!=0A=0Awhile watching these panoramas on www.begann.de:=0A=0Ahttp://www.b=
egann.de/panorama/pano6.html=0Ahttp://www.begann.de/panorama/pano2.html=0A=
=0A...I thought that Pipmak is still missing these nice lens and sun glare =
effects, which are also found in other 360=C2=B0 game-engines like Myst III=
: Exile and Myst IV: Revelation. In Exile, I think gamma control is used fo=
r the effect and Revelation uses some more advanced 3D-technologies for the=
 lens-effect. My first impression playing around with these (Java-) panoram=
as found on begann.de was, that they use some kind of transparent layers, l=
ike several semi-transparent *.png images moving in correlation to the came=
ra's angle of view (lens effect) or changing transparency while getting clo=
se to the sun (sun glare). So, instead of making it "real" 3D or faking the=
 effect with gamma control, wouldn't it be more feasible to connect the mov=
ing of several semi-transparent layers to the point of view?=0AIt's great t=
o see, how Pipmak progresses under the surface, so I hope that in the far o=
r near future this feature will be embedded and maybe my little brainstormi=
ng helps!=0A=0Abest regards=0ASimon John=0A=0A=0A=0A=0A      Jetzt Mails sc=
hnell in einem Vorschaufenster =C3=BCberfliegen. Dies und viel mehr bietet =
das neue Yahoo! Mail - www.yahoo.de/mail

Re: [Pipmak-Users] Getting the mouse out of the window

[Christian W. <cwa...@gm...>]

A Thomas wrote:
> Anyway, where in the source code should I look to change it?

main.c line 585 (in the current revision 160), or search for 
"SDL_MOUSEMOTION". As a quick workaround, lower the "20" threshold 
there. Of course, a more sophisticated implementation that works the 
same independent of the rate at which mouse events come in would be 
welcome too.

  -Christian

Re: [Pipmak-Users] Getting the mouse out of the window

[A T. <wgs...@ya...>]

I think it should be weakened a little bit.  Oddly enough, if I enter full-screen mode and then go back to a window, it is weaker.  Anyway, where in the source code should I look to change it?

-Aidan

Christian Walther <cwa...@gm...> wrote: A Thomas wrote:
> How do get your mouse out of the Pipmak window without quitting?

If you move it against the edge fast enough, it should break free. A 
slight edge resistance is deliberate, but it's implemented a bit 
crudely, so it may be too strong on some systems. Do you feel it ought 
to be weakened?

  -Christian


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Re: [Pipmak-Users] Pipmak won't work on my system

[Christian W. <cwa...@gm...>]

A Thomas wrote:
> How do get your mouse out of the Pipmak window without quitting?

If you move it against the edge fast enough, it should break free. A 
slight edge resistance is deliberate, but it's implemented a bit 
crudely, so it may be too strong on some systems. Do you feel it ought 
to be weakened?

  -Christian

Re: [Pipmak-Users] Pipmak won't work on my system

[A T. <wgs...@ya...>]

Thank you very much!  I never would have thought of that.  I installed the NVIDIA drivers for my video card, and now Pipmak runs perfectly.  I do have one more question: How do get your mouse out of the Pipmak window without quitting?

Thanks again,
Aidan

Christian Walther <cwa...@gm...> wrote: Hello Aidan

> I am using Debian etch on a 2.6 GHz x86 machine 
> with 512 MB RAM.  I am able to build it, and run it, but it runs so 
> slowly that the mouse can take up to 10 seconds to respond, only to 
> freeze again.  My father is running Ubuntu feisty on a machine with less 
> processor power than mine, and it runs fine for him, perfectly smoothly.

That sounds like you only get software rendering, while your father has 
hardware rendering. Try running "glxinfo | grep direct" - it says 
"direct rendering: Yes" if you have hardware acceleration.

I have never investigated why Pipmak runs so incredibly slow with Mesa 
software rendering. Curiously, it gets much faster when anything is 
displayed on the Pipmak terminal - e.g. press the L key to bring up the 
Lua console and type something. As long as the text is visible, I get a 
halfways usable frame rate, as soon as it goes away, it's down to 
several seconds per frame again.

  -Christian


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Re: [Pipmak-Users] Pipmak won't work on my system

[Christian W. <cwa...@gm...>]

Hello Aidan

> I am using Debian etch on a 2.6 GHz x86 machine 
> with 512 MB RAM.  I am able to build it, and run it, but it runs so 
> slowly that the mouse can take up to 10 seconds to respond, only to 
> freeze again.  My father is running Ubuntu feisty on a machine with less 
> processor power than mine, and it runs fine for him, perfectly smoothly.

That sounds like you only get software rendering, while your father has 
hardware rendering. Try running "glxinfo | grep direct" - it says 
"direct rendering: Yes" if you have hardware acceleration.

I have never investigated why Pipmak runs so incredibly slow with Mesa 
software rendering. Curiously, it gets much faster when anything is 
displayed on the Pipmak terminal - e.g. press the L key to bring up the 
Lua console and type something. As long as the text is visible, I get a 
halfways usable frame rate, as soon as it goes away, it's down to 
several seconds per frame again.

  -Christian

[Pipmak-Users] Pipmak won't work on my system

[A T. <wgs...@ya...>]

Hello,

 I found Pipmak when I was searching for a game engine for Myst-like games, and this is exactly what I want.  However, it does not run properly on my system.  I am using Debian etch on a 2.6 GHz x86 machine with 512 MB RAM.  I am able to build it, and run it, but it runs so slowly that the mouse can take up to 10 seconds to respond, only to freeze again.  My father is running Ubuntu feisty on a machine with less processor power than mine, and it runs fine for him, perfectly smoothly.

 We compared our Pipmak ELF executables against each other with ldd, and the one built on my system seems to link to a few shared libraries that the one built on my father's system, but his uses newer versions of some libraries.  (Not surprising, as Ubuntu generally uses slightly newer software than Debian.)

 We also tried swapping executables, and running each on the system that the other one was built on, and the one built on my system ran on my father's system the same as the one built on his system on his system, but his executable would not run on my system, because it was built for newer versions of some libraries than I have.

 So is there anyone on this list who might be able to help me?  We're both really baffled.  Pipmak looks to me like it's exactly what I've been looking for, and I really want to get it working on my system.  Oh, and I checked to make sure that the versions of the libraries I have installed are new enough for Pipmak, as the Read Me.txt file says.

-Aidan

       
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Re: [Pipmak-Users] log on build 156+

[Andrea V. <and...@gm...>]

Hi, Fab.

I have had similar problems linking ogg-vorbis.
I succeed to link only compiling ogg-vorbis myself.
 
Did you have tried to compile yourself ogg-vorbis?
Try also to change linking order....

If you want to try my .lib (they are "_d" versions) I post them here:

http://viarengo.altervista.org/download/ov.zip

(if with this url you get altervista main page,copy url and
past in another browser window) 

Your suggestion (http://lage.luaforge.net) is very interesting...
I will take a look.

Andrea

P.S.: Probably, as Christian has suggested, 
should be better post threads like this (i.e.: related on Pipmak develloping)
on other mailing list "pipmak.devel", You have only to subscribe at
https://lists.sourceforge.net/lists/listinfo/pipmak-devel.    

Re: [Pipmak-Users] log on build 156+

[Fabrizio P. <fpi...@li...>]

Ciao,
Thanks Andrea!
1. Maybe I've fixed the 'WinMain@16' adding  "mingw32" to the linker libr=
aries
2. In the attached file you can read the nm ad building  log
    All refer to libvorbis_static.a, symbols mismatch or are empty.
    Has this lib compiled imprioperly? Could you send me yours so i can d=
o a test?

I suggest http://lage.luaforge.net  a tiny game engine for 2D adventure g=
ames, using Lua as the script language and SDL.
The source is very simple and I found somthing of interest:
- a function to play mpeg1 movie. Render the video on an "object" 's "sur=
face": we can modify it to render on a "patch"
- use of SDL_rotozoom
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