Re: [JAVA3D] Help with transparent textures please :)

Chris Fenton Thu, 10 Jul 2003 03:37:23 -0700

Jeremy Booth wrote:

View.setTransparencySortingPolicy(View.TRANSPARENCY_SORT_GEOMETRY)

            plateAppearance = new Appearance();
            transparencyAttributes = new
            TransparencyAttributes(TransparencyAttributes.BLENDED, 1.0f);

            TextureAttributes texAttr = new TextureAttributes();
            texAttr.setTextureMode(TextureAttributes.REPLACE);

texAttr.setPerspectiveCorrectionMode(TextureAttributes.FASTEST);

plateAppearance.setTexture(texture);

           RenderingAttributes plateRenderingAttributes = new
RenderingAttributes();
            plateRenderingAttributes.setIgnoreVertexColors(true);

            Material plateMaterial = new Material();
            plateMaterial.setLightingEnable(false);
            plateAppearance.setMaterial(plateMaterial);


plateAppearance.setRenderingAttributes(plateRenderingAttributes);
            plateAppearance.setTextureAttributes(texAttr);
            plateAppearance.setTransparencyAttributes(
transparencyAttributes );

plateShape.setAppearance(plateAppearance);

HTH

Jeremy


Thanks for the help but still no result.
PS it is frustrating because transparency is SO POORLY documented

Here is the code implemented in jython

       def Main(self):
                   .....

view = univ.getViewer().getView()

view.setTransparencySortingPolicy(View.TRANSPARENCY_SORT_GEOMETRY)

def buildAppearance(self):

plateAppearance = Appearance()

                plateTransAttrs =
TransparencyAttributes(TransparencyAttributes.BLENDED, 1.0)

                plateTexAttr = TextureAttributes()
                plateTexAttr.setTextureMode(TextureAttributes.REPLACE)

plateTexAttr.setPerspectiveCorrectionMode(TextureAttributes.NICEST)

                plateTexture = TextureLoader('mask5.png',
JFrame()).getTexture()

                plateRendAttrs = RenderingAttributes()
                plateRendAttrs.setIgnoreVertexColors(1)

                plateMaterial = Material()
                plateMaterial.setLightingEnable(0)

                platePolygon = PolygonAttributes()
                platePolygon.setCullFace(PolygonAttributes.CULL_NONE)
                platePolygon.setBackFaceNormalFlip(1)

                plateAppearance.setTextureAttributes(plateTexAttr)
                plateAppearance.setTransparencyAttributes(
plateTransAttrs )
                plateAppearance.setMaterial(plateMaterial);
                plateAppearance.setPolygonAttributes(platePolygon)
                plateAppearance.setRenderingAttributes(plateRendAttrs)
                plateAppearance.setTexture(plateTexture)

return plateAppearance

Background.

I am on a linux machine.
I am using SimpleUniverse and orbitBehavior, -> camera moves not object.
The program requires a set of 3D coordinates and vector weights as input.
A set of 3D polygon blob like objects are created showing areas within
the molecule that do not like water (hydrophobic patchs)
I was not keen on using j3d but the boys upstairs made me.
I am pretty much finished with the prototype; the transparency issue is
all that is left.
Do I have to build up my geometry in a special way ?
What else can I do ?

Thanks for your help,

Chris

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Re: [JAVA3D] Help with transparent textures please :)

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