Ejecta and babylon : Z-Buffer issue ?

[demonixis 3]

Hi there,

 

I'm working on the port of a webgl app using Babylon and Ejecta. It seem that i've a z-buffer issue but I don't know if the problem is from Babylon or from Ejecta. I made a video that you can watch here which show you the problem.

 

I tested different configurations with camera projection (minZ and maxZ) but it hasn't solved my problem. Have you an idea ? In fact I don't know where to start to debug this issue.

 

Thanks for your answers

 

Yann.

[Deltakosh 4313]

Is anti-aliasing on?

Are they transparent objects?

[demonixis 3]

Hi,

 

Anti-aliasing is on and exteriors walls can be transparents but interior walls aren't.

[Deltakosh 4313]

Can you try without aa and transparency? just to be sure

[amerkoleci 0]

The issue is that sometime Babylon.js during clear does not test if depthMask is enabled, this is known OpenGL stuff, something like this would fix this issue:

var depthWriteMask = this._gl.getParameter(this._gl.DEPTH_WRITEMASK);// Enable depth mask when clearing depth buffer.                if (!depthWriteMask)                    this._gl.depthMask(true);                this._gl.clearDepth(1.0);.. clear// Reset buffer write stateif (!depthWriteMask) {     this._gl.depthMask(false);  }

[Deltakosh 4313]

I'll fix that for next version!

[demonixis 3]

Thanks for this tips, I'll try to patch our babylon build asap and see if it solve the problem

[demonixis 3]

The problem is still here after applied this patch.

[Deltakosh 4313]

Crap!

[demonixis 3]

Don't worry, we'll find why it's not working and we'll solve it

[meiroo 0]

Don't worry, we'll find why it's not working and we'll solve it

hi, demonixis, Have you fixed this issue?  I have got this problem too. will you share your solution?