Re: [JAVA3D] Selective transparent background

[Dr. Humberto Trejos]

Thank you

I couldn't get it working. In any way I try, I get a transparency of the
whole image.

Humberto


Jeremy

try something like:

          Point3d[] vertecies = {new
Point3d(-width+offsetX,-height+offsetY,depth), new
Point3d(width+offsetX,-height+offsetY,depth),
             new Point3d(width+offsetX,height+offsetY,depth), new
Point3d(-width+offsetX,height+offsetY,depth)};
             plateGeom.setCoordinates(0,vertecies);
             Vector3f[] plateNormals = {new Vector3f(0f,0f,1f), new
Vector3f(0f,0f,1f),
             new Vector3f(0f,0f,1f), new Vector3f(0f,0f,1f)};
             plateGeom.setNormals(0,plateNormals);

             TexCoord2f[] plateTextCoords = {new
TexCoord2f(0f,(float)textureRatioY),
             new TexCoord2f((float)textureRatioX,(float)textureRatioY),
             new TexCoord2f((float)textureRatioX,0f),
             new TexCoord2f(0f,0f)};
             plateGeom.setTextureCoordinates(0,0,plateTextCoords);


             plateShape.setGeometry(plateGeom);

             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);


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