HeightField loading terrain is pitch black

[luohuiiqng]

code:

osg::Geode* HeightGeode::create(const std::string& heightFile, const std::string& image)
{
	 osg::ref_ptr<osg::Geode> geode = new osg::Geode;
	 osg::ref_ptr<osg::Image> heightMap = osgDB::readImageFile(heightFile);
	 osg::ref_ptr<osg::HeightField> heightField = new osg::HeightField();


	 heightField->allocate(heightMap->s(), heightMap->t());
	 heightField->setOrigin(osg::Vec3(0, 0, 0));
	 heightField->setXInterval(1.0f);
	 heightField->setYInterval(1.0f);
	 
	 for (int r = 0; r < heightField->getNumRows(); r++)
	 {
		 for (int c = 0; c < heightField->getNumColumns(); c++)
		 {
			 heightField->setHeight(c, r, ((*heightMap->data(c, r)) / 255.0f) * 60);
		 }
	 }
	 geode->addDrawable(new osg::ShapeDrawable(heightField));



	 osg::ref_ptr<osg::Texture2D> tex = new osg::Texture2D();
	 tex->setDataVariance(osg::Object::DYNAMIC);
	 tex->setFilter(osg::Texture2D::MIN_FILTER, osg::Texture2D::LINEAR_MIPMAP_LINEAR);
	 tex->setFilter(osg::Texture2D::MAG_FILTER, osg::Texture2D::LINEAR);
	 tex->setWrap(osg::Texture::WRAP_S, osg::Texture::REPEAT);
	 tex->setWrap(osg::Texture::WRAP_T, osg::Texture::REPEAT);
	 osg::ref_ptr<osg::StateSet> stateset = geode->getOrCreateStateSet();
	 stateset->setTextureAttributeAndModes(0, tex.get());
	 return geode.release();
}

Thanks!

[robertosfield]

I can't see anywhere where you assign an image to the texture. First thing I'd try to comment out the stateset->setTextureAttributeAndModes(0, tex.get()); line to check whether the source of the black is an unset texture.