Problems about tansparency

I tried to make a big box which contains a small box. The big box is a tank. The small box that represents water in the tank is draw by drawcube() command in the tank's Custom Draw Code trigger. I would like to make the big box transparent in order to have a look at the quantity of water. So I used Glass texture for big box and it became transparent. But when I tried to draw the small box. Is it not visiual. What's the problem?

Thanks for your help!

It's about the order in which things are drawn. By returning 1/true you can prevent the default drawing and draw the Box object yourself and so control that order.

drawtomodelscale(current);
double currentContent = getvarnum(current, "curcontent");
double maxContent = getvarnum(current, "maxcontent");
double height = (currentContent/maxContent)* getnodenum(spatialsz(current));
drawcube(0, 0, 0, 1, 1, height, 0, 0, 0, 0, 0, 255);
drawtoobjectscale(current);
drawobject(view,getshapeindex("fs3d\\General\\Box.3ds"),gettextureindex("fs3d\\Glass.bmp"));
return 1;

Hi Jason,

Thanks for your reply. But when I write your code in my model, it still does not work. I still cannot see the small box inside.

Could you check that the shape and texture are both loaded into the media list by running the following commands in script windows? They should return a positive number if loaded.

getshapeindex("fs3d\\General\\Box.3ds")

and then

gettextureindex("fs3d\\Glass.bmp")

Also you can check the list directly under the menu Tools->MediaFiles.

You will probably need to remove the 3D Shape reference in the General tab and in version 4 the drawshape should probably be:

drawobject(view,getshapeindex("fs3d\\texturebox.wrl"),gettextureindex("fs3d\\Glass.bmp"));

Attached is the V4 model.