Irrlicht Engine

Hi everyone,

I'd like to debug a shader:
for each pixel in the fragment shader, I take a few samples around it. I'd like to validate, if the sample locations are where I expect them to be. Any idea how I can achieve this? (it's a GLSL shader).
It would be quite nice to show all the sample pixels e ...

Ok, I think, I've fixed it:
ScreenQuad.getMaterial().TextureLayer[2].TextureWrapU = ETC_CLAMP_TO_EDGE;
ScreenQuad.getMaterial().TextureLayer[2].TextureWrapV = ETC_CLAMP_TO_EDGE;
did the trick. Although I still don't understand why (can anyone explain it to me?)... in the shader I clamped the ...

Hi,

I'm implementing a Screen Space Ambient Occlusion (SSAO) shader and have difficulties with texture wrapping. (For those who don't know SSAO: it's a technique, where you compute the amount of occlusion for each pixel by comparing its depth with surrounding sample pixels. If samples are closer to ...

Jesus!
Thanks for the hint with XEffects.
There's another post dscribing the issue:
http://irrlicht.sourceforge.net/phpBB2/viewtopic.php?p=218328&sid=0942ea6c41e6a5609b6cd83842800ce5

I just had to add
driver->setMaterial(irr::video::SMaterial());
to the end of EffectHandler::update and the GUI ...

Irrlicht version 1.7.1.
Open GL driver (via EDT_OPENGL)
Windows XP Home SP3
renderer OpenGL 3.3.0
GeForce 8600GT
GLSL version 3.3

Yes, I've based my project on XEffects (I just wanted to code another ScreenSpace Ambient Occlusion demo).

I can't change EDT_OPENGL to DirectX, cause I have some glsl ...

I compiled and executed Tutorial 5 ("User interface"), which works fine - the fonts are displayed correctly. Project settings are nearly the same as mine.

Ah, wait: I've just added an image to the window:

m_guiEnv->addImage(m_driver->getTexture("./media/irrlichtlogo2.png"), position2d<int>(10,10 ...

Meanwhile I've used another font ("fontcourier.bmp") which doesn't work either. But interesting: instead of the black spots (see screenshot above) where the text should be, now a few cryptic letters appear.
Any ideas?

Hello,

I'm trying to add some Gui functionality to my Irrlicht application without success. Only black dots appear, where the button caption should be...
See my screenshot:
http://rapidshare.com/files/413764772/SSAO-Gui-Screenshot.jpg
((Button is to the left and another static text is some pixels ...

Hello,
when I load an obj file, I get the error "Too many vertices for 16bit index type, render artifacts may occur." (16bit indices limit index count to 65536)
I took a look into the Irrlicht source code and saw, that there's a struct called E_INDEX_TYPE indicating that either 16bits or 32 bits can ...

I've come across the same issue. Have there any changes been made to Irrlicht concerning the maximum texture restriction of 4 textures? Can I now in Irrlicht 1.7.1 just change the _IRR_MATERIAL_MAX_TEXTURES_ definition to let's say 8?

Don't bother, I think I can get along without the rectangular extension. It's just a matter of rewriting some texture access code.
Anyway, thanks for your information, hybrid, about support of rect textures in Irrlicht.

I took the XEffects project by BlindSide (see http://irrlicht.sourceforge.net/phpBB2/viewtopic.php?t=30631 ) and wanted to replace SSAO by the way Unity engine does it.
Download my project at
http://rapidshare.com/files/411909598/SSAOEffect_forum.zip
It's still in development...blurring is ...

Hi,

is it possible to use rectangular textures in Irrlicht?
I'd like to use sample2DRect and texture2DRect in my GLSL shader, but texture coordinates seem to be floats in [0,1]x[0,1] instead of integers in [0,texWidth]x[0,texHeight].
I saw in the Irrlicht source code, that textures are always bound ...

Thanks. Ok, as you already mentioned, because of the low depth precision of 8 bit you can't even distinguish the objects from each other in the resulting image file.
Is there any way to get such a nice grey scale image like in http://en.9jcg.com/comm_pages/blog_content-art-168.htm?

I don't want to use the depth map externally. I'd like to save it so that I can have a look at it later on (for some kind of debugging).

Ok, if I create the depth texture as ECF_G32R32F, I'll have to decode depth in the shader via


vec4 texDepth = texture2D(DepthMapSampler, coords);
float depth ...