Stencil buffer disabled !?!?!

Acki · Post by **Acki** » Wed Feb 25, 2004 1:34 am

When I start the SpecialFX demo there are no shadows...
In the DOS window this log appears:

{Engine}
{System}
{Renderer}
Depth-stencil format is not compatible with display format, disabling stencil buffer.
{DefaultFont}
{Loading Meshes}
...

What's the reason of this ???
It's the normal demo, no changes where made !!!

CU

niko · Post by **niko** » Wed Feb 25, 2004 7:48 am

Did it work with earlier Engine versions before? What gfx-adapter do you have? Maybe it isn't capable of using the stencil buffer. It could help switching to fullscreen-mode.

Acki · Post by **Acki** » Wed Feb 25, 2004 11:28 pm

Well, with Irrlicht 4.2 it works (I think)...
With Irrlicht 5 I have some more problems:
When I turn on the flag for lightning, the modell appears bright (not as bright as when lightning turned off, but it's bright and no lights are in the map) !!!
And a problem I have in 4.2 and 5:
GetActiveCamera in the event receiver doesn't work (the prog crashes) !!!
I have to change the demos by creating an camera object whitch I can send the commands (like in the QuakeMap demo)...

niko · Post by **niko** » Thu Feb 26, 2004 8:07 am

Your program might crash, because since 0.4.2, you'll get events during creation of the device. So you device-pointer is zero. Don't call getActiveCamera() if device is Null.
About the brigthness: Is it a .3ds model? Change the emissive light color. Or if not: What rendering device are you using?

Acki · Post by **Acki** » Fri Feb 27, 2004 1:05 am

Yes, I'm using 3DS files.
I tired DX8 and DX9.
With DX8 there are texture probs (I saw the same prob in an other thread).

What do you mean, where should I change the emmisive color, in Irrlicht (I don't think so) or in 3ds max ???

niko · Post by **niko** » Fri Feb 27, 2004 7:58 am

Try to change it in irrlicht, like in the (new) special effects tutorial.

Phunk · Post by **Phunk** » Sat Feb 28, 2004 12:43 pm

I have a ATI radeon 7200, and in directX 8.1 and 9.0, irrlicht says there is no stencilbuffer support, while it works just fine in openGL(ver 5.0), I've looked trough the source a bit, but I can only guess that directx gives wrong info about my video card, Maybe I will try to compile the source without the line that checks this, and see if my card goes up in smoke

when I know, ill keep you informed

Acki · Post by **Acki** » Sat Feb 28, 2004 3:16 pm

Phunk wrote:when I know, ill keep you informed

Yes, the same prob with me !!!
Please check this (I have no idear where to look for this) !!!

I have a GForce 2 with DX9 installed and tried it with EDT_DIRECTX8 and EDT_DIRECTX9.

If I use DX with 16 bit color, I get this message:
Depth-stencil format is not compatible with display format, disabling stencil buffer.

If I use DX with 32 bit color, I get this message:
Device does not support stencilbuffer, disabling stencil buffer.

If I use OpenGL, it seems to work correctly (no error messages)...

CU

niko · Post by **niko** » Sun Feb 29, 2004 7:14 am

Thanks for that report, I'll take a look at that.

Phunk · Post by **Phunk** » Fri Mar 05, 2004 7:28 pm

hmm, just compiled the irrlicht source with
if (StencilBuffer &&
(!(Caps.StencilCaps & D3DSTENCILCAPS_DECR) ||
!(Caps.StencilCaps & D3DSTENCILCAPS_INCR) ||
!(Caps.StencilCaps & D3DSTENCILCAPS_KEEP)))
{
os::Printer::log("!Device not able to use stencil buffer, disabling stencil buffer.", ELL_WARNING);
//StencilBuffer = false;
}
(just commented out StencilBuffer = false;)

and then the stencilbuffer works on my card, while the check should imply that it doesn't, does anybody know why?

Phunk · Post by **Phunk** » Fri Mar 05, 2004 7:41 pm

further tests shows that this line is where dx gives an error:
!(Caps.StencilCaps & D3DSTENCILCAPS_INCR)

niko · Post by **niko** » Fri Mar 05, 2004 7:57 pm

Hm, but this line should be right, or did I misunderstand the d3d doc? hm.

Phunk · Post by **Phunk** » Fri Mar 05, 2004 8:00 pm

I think that its just DX and my (kind of)card that have the conflict, not your engine. cause then more people should have this problem right?
greets Robin

Serg Nechaeff · Post by **Serg Nechaeff** » Fri Mar 05, 2004 11:37 pm

version 0.5
*** DirectX9:

Fullscreen:
Device does not support stencilbuffer, disabling stencil buffer.

Windowed :
OK

*** DirectX8

Fullscreen:
Device does not support stencilbuffer, disabling stencil buffer.

Windowed:
Ok

*** OpenGL

Fullscreen:
Ok

Windowed:
Ok

crazedlunatic · Post by **crazedlunatic** » Wed Mar 10, 2004 4:32 am

I am having the same problem. Oddly enough it seems to work in windowed mode but NOT fullscreen for me. I am using an nForce2 IGP chipset, so basically a lower grade GeForce4 MX. It is spec'd with a 32-bit stencil-buffer as one of its features as well. I just want to see it work in fullscreen mode since that's better and faster for games and actually has vsync, etc..

Irrlicht Engine

Stencil buffer disabled !?!?!

Stencil buffer disabled !?!?!

Disabled Stencil Buffer