Cell shading and antialiasing problem (1st part solved)

Scripting Issues
1

Hello every one,
I’m not English, sorry for the mistakes I’m maybe gonna make :unamused:

I’m new to Panda, I have Blender 2.6a with YABEE, and Python 3.3.
To begin, I took the basic cube in Blender, applied the “magic” texture from blender, so in the “render” (F12), I see my cube with this texture.

When exporting, all’s right, I load my cube, it works, but there are no textures on it !!!

I added a light, but my cube is grey, as the basic blender cube without any changes !!!
Moreover, when I load some .png textures, it only loads the main colour of the picture… (I don’t have beautiful textures, just all brown, or green, but never 2 different colours).

What do I’ve got to do ?
Should I load the texture (called Texture.001 in Blender) inside my .egg file ?
In that case, I don’t know the command to do it…

Should I resize the textures before ?
Even so, it didn’t work…

I need your help, thank you !!! (yeah, I know, I’m some kinda newbie :frowning: )

Otherwise, I did apply some cell-shading on my cube, which WORKS …
But the black lines of the cell shading do not have any anti-aliasing, whereas my cube has if I remove the
cell shading: the anti-aliasing is turned on, but is hidden by the black lines :confused:

How to apply some anti-aliasing on these black lines (fir information, I used Multisample x8, which is totally supported by my GPU)

Thank you again to answer :smiley:
Note that I only use Panda and learn Python for 4 weeks, and use them for a school game project :wink:

2

Regarding your textured cube, have you UV-mapped your cube? (If I recall correctly, doing this in Blender involves entering “edit mode”, then pressing “u” and selecting the UV-mapping method that you desire. You may want to look at the “UV/Image editor” view in order to see the resultant UV-map.)

Further, note that a texture applied in Blender may only work if it’s applied as a texture map (although I may be mistaken in this); you may want to “bake” a procedural texture such as the “magic” effect, although I fear that I forget how Blender does this.

Finally, depending on how you’re applying your texture, you may find YABEE’s “UV as texture” option useful.

3

Thank you very much… However, I’m not very good at using Blender :frowning:
I don’t know what UV is, nor how to use it, nor texture map is, and I didn’t find YABEE’s “UV as texture”…I’ll watch tutorials :wink:
Thank you anyway :smiley: !!!

Now, about anti-aliasing and cell shading… can somebody help me ?

4

How did you specify antialiasing?

5

I wrote that for the cell shading :

    light = render.attachNewNode("light")
    light.setPos(30,-50,0)
    render.setShaderInput("light", light)
    normalsBuffer=base.win.makeTextureBuffer("normalsBuffer", 0, 0) 
    normalsBuffer.setClearColor(Vec4(0.5,0.5,0.5,1)) 
    self.normalsBuffer=normalsBuffer
    normalsCamera=base.makeCamera(normalsBuffer, lens=base.cam.node().getLens())
    normalsCamera.node().setScene(render)
    tempnode = NodePath(PandaNode("temp node"))
    tempnode.setShader(loader.loadShader("normalGen.sha"))
    normalsCamera.node().setInitialState(tempnode.getState())
    drawnScene=normalsBuffer.getTextureCard()
    drawnScene.setTransparency(1)
    drawnScene.setColor(1,1,1,0) 
    drawnScene.reparentTo(render2d)
    self.drawnScene = drawnScene
    self.separation = 0.001 #default = 0.001 
    self.cutoff = 0.25 #default = 0.3
    inkGen = loader.loadShader("inkGen.sha")
    drawnScene.setShader(inkGen)
    drawnScene.setShaderInput("separation", Vec4(self.separation,0,self.separation,0));
    drawnScene.setShaderInput("cutoff", Vec4(self.cutoff,self.cutoff,self.cutoff,self.cutoff));

And that for the antialiasing :

render.setAntialias(AntialiasAttrib.MMultisample)

6

If you specify multisample antialiasing like that, you also need to specify “framebuffer-multisample #t” in Config.prc, plus “multisamples 8” (or a different number of samples).

7

Yes I did…
But the antialiasing works well: the fact of adding cell shading adds black lines (which I want), that hide the cube’s edges with antialiasing…
Although the antialiasing works, I’d like it to be applied to the black lines of cell shading :slight_smile:
Do you have any suggestions to make the cell shading lines be “anti-aliased” ?

8

1st part solved !
I just had to play with UV mapping, to create a 2d texture (.png) and to load it !
Now I have a cube with 6 textured faces !
However, I don’t know how I’m gonna do with 3d textures… I’ll see ! :slight_smile:
Thank you very muuuuch !!!

Only the part with antialiasing and cell shading remains :wink: