directpython-general Mailing List for DirectPython

2008/11/27 Aleksandar Kordic <ale...@gm...>:
> Hi,
>
> My project is simple simulation of robot movement on rectangular
> board. I used Frame from d3dx and StaticMesh from d3d module. So far
> only one model is presented in scene.
> Problem is that textures from .x file are not shown in scene. Am I
> doing something wrong in onRender() method ?
>
>        def onRender(self):
>                d3d.setView(self.eye, self.lookat, 6000.0, 0.7853)
>                d3d.setState(RS.LIGHTING, True)
>                d3d.setState(RS.AMBIENT, 0xffffffff)
>                d3d.setState(RS.SPECULARENABLE, True)
>
>                d3d.setLight(0, LIGHT.DIRECTIONAL, 0xffffffff, 500.0, (0.0, 100.0,
> 0.0), (0.3, -1.0, 0.3), 0.4, 0.4)
>                d3d.setLight(1, LIGHT.DIRECTIONAL, 0xffffffff, 500.0, (200.0,
> -300.0, 0.0), (0.5, 0.5, 0.1), 0.4, 0.4)
>                d3d.setState(RS.FILLMODE, RS.FILL.SOLID)
>
>                d3d.setTransform( element.translation, element.rotation, element.scaling )
>                d3d.setState(RS.USEMESHMATERIALS, True)
>                element.mesh.render()     #time_passed) - not for static mesh
>
>                d3d.setState(RS.FILLMODE, RS.FILL.SOLID)
>                self.manager.render(self.elapsedtime)
>
> Strange thing is that same model opened with 'MeshViewer.py' sample
> does not show textures, while DXViewer.exe (from directx sdk) loads
> textures properly.
>
> Textures in .x file are referenced as files
> example :
> Material Wood_OSB1{
> 0.392156862745098;1.0;0.392156862745098;1.0;;
> 3.2;
> 0.000000;0.000000;0.000000;;
> 0.000000;0.000000;0.000000;;
>   TextureFilename { "teren.xWood_OSB.jpg";   }
> }
>
> Is it possible that d3d.StaticMesh does not load properly from '.x'
> file ? If so how can I contribute to fix this ?
>
> Best Regards,
> Alex
>

As you noticed, StaticMesh does not load any textures. Internally the
mesh object uses basic D3DX-functions and interfaces which don't
support it. The more complex interfaces (ID3DXFile etc.) require much
more processing which is not usually needed. Actually, it is almost
easier to write a simple .x-parser in Python than to create fully
supported C++-loader with those interfaces. They are flexible, but
also quite complex.

It is quite common  to use .x-files to only store geometry (etc.) data
and use some other file format to store other information. For example
a simple text file could specify information about an object, like
it's physical abilities textures and approriate .x-files (if it is a
composite shape or something). When you need to load an object you
just process this file and load all needed resources.

--
Heikki Salo

Hi,

My project is simple simulation of robot movement on rectangular
board. I used Frame from d3dx and StaticMesh from d3d module. So far
only one model is presented in scene.
Problem is that textures from .x file are not shown in scene. Am I
doing something wrong in onRender() method ?

	def onRender(self):
		d3d.setView(self.eye, self.lookat, 6000.0, 0.7853)
		d3d.setState(RS.LIGHTING, True)
		d3d.setState(RS.AMBIENT, 0xffffffff)
		d3d.setState(RS.SPECULARENABLE, True)
		
		d3d.setLight(0, LIGHT.DIRECTIONAL, 0xffffffff, 500.0, (0.0, 100.0,
0.0), (0.3, -1.0, 0.3), 0.4, 0.4)
		d3d.setLight(1, LIGHT.DIRECTIONAL, 0xffffffff, 500.0, (200.0,
-300.0, 0.0), (0.5, 0.5, 0.1), 0.4, 0.4)
		d3d.setState(RS.FILLMODE, RS.FILL.SOLID)

		d3d.setTransform( element.translation, element.rotation, element.scaling )
		d3d.setState(RS.USEMESHMATERIALS, True)
		element.mesh.render()     #time_passed) - not for static mesh
		
		d3d.setState(RS.FILLMODE, RS.FILL.SOLID)
		self.manager.render(self.elapsedtime)

Strange thing is that same model opened with 'MeshViewer.py' sample
does not show textures, while DXViewer.exe (from directx sdk) loads
textures properly.

Textures in .x file are referenced as files
example :
Material Wood_OSB1{
0.392156862745098;1.0;0.392156862745098;1.0;;
3.2;
0.000000;0.000000;0.000000;;
0.000000;0.000000;0.000000;;
   TextureFilename { "teren.xWood_OSB.jpg";   }
}

Is it possible that d3d.StaticMesh does not load properly from '.x'
file ? If so how can I contribute to fix this ?

Best Regards,
Alex

2008/11/18 Caleb Crome <Cal...@lo...>:
> Hello,
>   I'm working on an application that uses a logitech force feedback steering
> wheel.  I'm totally new to directpython, so sorry if this is a silly
> question.
> I was able to get information from the wheel, but I don't see any function
> calls to set Force Feedback parameters from the GameController object.
> My code so far is simple enough (below).  How do I set forces and springs?
> Thanks so much,
>   -Caleb
>
> #!/c/Python25/python25.exe
> import d3d
> import d3dx
> from d3dc import *
> class Turntable(d3dx.Frame):
>     def onCreate(self):
>         print "Creating..."
>         self.joystick = d3dx.GameController(1)
>         print self.joystick.hasForceFeedback()
>         return
>     def onUpdate(self):
>         pass
> frame = Turntable(u"Turntable");
> frame.mainloop()
>

Unfortunately DirectPython does not support force feedback. Currently
you need to interact directly with DirectInput or maybe use some other
library to do force feedback. The C/C++-interface is exposed through
IDirectInputEffect and .dll's, so it is possible to use it through
comtypes, alotough that is not trivial.

DirectInput API itself is no longer updated by Microsoft (altough it
still works well and is widely supported) so I never really saw much
need to add support and testing for it.

--
Heikki Salo

Hello,  I'm working on an application that uses a logitech force feedback
steering wheel.  I'm totally new to directpython, so sorry if this is a
silly question.

I was able to get information from the wheel, but I don't see any function
calls to set Force Feedback parameters from the GameController object.

My code so far is simple enough (below).  How do I set forces and springs?

Thanks so much,
  -Caleb


#!/c/Python25/python25.exe
import d3d
import d3dx
from d3dc import *

class Turntable(d3dx.Frame):
    def onCreate(self):
        print "Creating..."
        self.joystick = d3dx.GameController(1)
        print self.joystick.hasForceFeedback()
        return

    def onUpdate(self):
        pass
frame = Turntable(u"Turntable");
frame.mainloop()