Texturing Conundrum [Solved]

Scripting Issues
1

Perhaps someone can tell me if there is a way to solve my problem…

Right now I am using multi-texturing for my map, in example, applying a grass texture according to an alpha map. However, I want it to also tile the grass. If I attempt this, however, it also tiles the alpha and I end up with grass all over the place, and where it shouldn’t be. Can anyone tell me a way to tile a texture, “binding” it to the same alpha?

    def setMultiTexture(self, alpha, texfile):
        self.it += 1
        
        colortex = loader.loadTexture(texfile, alpha)
        
        ts = TextureStage('ts' + str(self.it))
        ts.setMode(TextureStage.MDecal)

        
        self.terrainRoot.setTexture(ts, colortex)

        self.terrainRoot.setTexScale(ts, 10, 10)

However, that code produces this:

Any suggestions? :frowning:

2

Is the model already textured before calling that method ?

If not, you should :

  1. apply the color tex to the default stage
  2. apply the alpha tex to the 2nd stage

loader.loadTexture(texfile, alpha) gives you 1 texture with alpha. If you want to control them separately, load them separately too.

3

Thanks, that sort-of fixed the problem. :slight_smile:

How can I get TextureStage ts to adhere only to the white portion of ts2?

    def setMultiTexture(self, alpha, texfile, alphaPriority=0, texfilePriority=0):
        self.it += 1
        
        colortex = loader.loadTexture(texfile)
        alphatex = loader.loadTexture(alpha)
        
        ts = TextureStage('ts_' + str(self.it))
        ts.setMode(TextureStage.MDecal)
        ts.setSort(texfilePriority)
        ts2 = TextureStage('ts2_' + str(self.it))
        ts2.setMode(TextureStage.MDecal)
        ts2.setSort(alphaPriority)



        
        self.terrainRoot.setTexture(ts, colortex)
        self.terrainRoot.setTexture(ts2, alphatex)

        self.terrainRoot.setTexScale(ts, 30, 30)

4

like this ?

#_____SPOTLIGHT
img=PNMImage(32,32)
img.addAlpha()
img.renderSpot(Vec4D(1,1,1,1),Vec4D(1,1,1,0),.85,.9)
#_____DOUGHNUT o_0
img1=PNMImage()
img1.copyFrom(img)
img2=PNMImage(32,32)
img2.addAlpha()
img2.renderSpot(Vec4D(1,1,1,0),Vec4D(1,1,1,1),.35,.4)
img1.darkenSubImage(img2,0,0,0,0)
alphaTex = Texture()
alphaTex.load(img1)

CM = CardMaker('')
CM.setFrame(-1,1,-1,1)
card = render.attachNewNode(CM.generate())
card.setScale(3)
t = loader.loadTexture('maps/envir-treetrunk.jpg')
ts = TextureStage.getDefault()
ts.setSavedResult(True)
card.setTexture(ts,t)

t1 = loader.loadTexture('maps/envir-ground.jpg')
ts1 = TextureStage('1')
ts1.setMode(TextureStage.MReplace)
card.setTexture(ts1,t1)
card.setTexScale(ts1,15)

ts2 = TextureStage('2')
ts2.setCombineRgb(TextureStage.CMInterpolate,
  TextureStage.CSLastSavedResult,TextureStage.COSrcColor,
  TextureStage.CSPrevious,TextureStage.COSrcColor,
  TextureStage.CSTexture,TextureStage.COSrcAlpha,
  )
card.setTexture(ts2,alphaTex)
5

Thank you SO MUCH, this works like a charm! :smiley: