(Solved)Transparency Issue(Solved once more)

[The_Glitch]

Well I have a building which is inside that has a material which is for glass that use's alpha transparency, which works fine on it's own but I run into a problem because I have a sky model that surrounds the environment which use's some transparency materials. The glass begins to disappear when the camera rotates or moves around inside the building. I tested and confirmed that it's because my glass and sky use transparent alpha channel and cause's problems for each other.

I read somewhere maybe to use 2 scene managers but I'm not sure that will help or not.

[CuteAlien]

Please add a screenshot of the problems, there's a small chance that there is another cause.

[The_Glitch]

Old picture but it actually captured the problem to the right, the window disappears, the blue sky in the distance use transparency. If I don't draw the sky just the glass the problem is gone. My guess is because it has to do with two transparent objects one in front of the other.

http://s17.postimg.org/kshar6jjj/29_201 ... _01_89.png
^^ link for full picture If Irrlicht clips the picture in the post.

[CuteAlien]

Did you try drawing the sky without transparency? Do you do that do have the background image show through the sky?

[The_Glitch]

Here the window is drawn but only the parts that don't directly have the sky behind it.


Here's the sky everything use's alpha channel except the blue skydome with stars/

[The_Glitch]

I stumped the community once more I see LOL

[CuteAlien]

I fear so. Problem as usual is that to investigate this I'd need time... (current panic-level in my work-project is around "I'm so gonna die").

[thanhle]

Sometimes you need to be patience.
It does takes time to get something right.

The expert people are probably too busy with their life.

Try find previous project or codes, I guess people would have solved that issue before.
Happy learning.
Cheers
Thanh

[Klunk]

is your transparent star field object registered as a ESNRP_SKY_BOX ? I use this type for my custom sky dome with transparency. Just means it will always be rendered first negating any sorting issues.

[The_Glitch]

No it's not that's a good idea how would I go about that?


Also I solved the issue by moving the sky model up in the world some as I fill the glass and sky were at even positions in the world causing that problem above and I made sure the outer most layer the star field is a sold material.

But Klunk I'd still like to try your approach sounds like a good idea for the future.

[Klunk]

the only issue with setting it as background object (ESNRP_SKY_BOX) is you have to manually set the draw order but as they are always supposed to be in the background this should not cause any draw problems.... I have a custom background mesh object that registers it's self as ESNRP_SKY_BOX to handle these thing.

Code: Select all

 
virtual void OnRegisterSceneNode()
    {
        if(IsVisible)
            SceneManager->registerNodeForRendering(this, ESNRP_SKY_BOX);
 
        ISceneNode::OnRegisterSceneNode();
    }