XEffects - Reloaded - New Release (V 1.4)

[Harch]

Somebody repaired xEffects? What about other approaches?

[christianclavet]

Hi, This is Nadro answer about the transparency problem:

This is the best solution to handle alpha + shaders with Irrlicht from SVN:
- Use standard SOLID material as a base material.
- Set SMaterial::BlendOperation to EBO_ADD;
- Set SMaterial::BlendFactor to pack_textureBlendFunc(EBF_SRC_ALPHA, EBF_ONE_MINUS_SRC_ALPHA);
With this solution you don't need separate materialType for solid and transparent shaders, you can just change SMaterial::BlendFactor, however old solution should works too.

You can check this thread. Where I reported the problem.
http://irrlicht.sourceforge.net/forum/v ... =7&t=50805

[Harch]

I do so. It turned out that all the shadows drawn EXCEPT the shadow from a cube with an alpha channel. I would like to and from the shadows drawn. So, I could not just the cube add processing shadows ... But I want to see the shadow, and from the letters of the cube.

Give a link to the thread, please. Because the old solution does not work. I will write to it...

Code:

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cube->getMaterial(0).MaterialType = video::EMT_SOLID;
    cube->getMaterial(0).BlendOperation = EBO_ADD;
    cube->getMaterial(0).BlendFactor = pack_textureBlendFunc(EBF_SRC_ALPHA, EBF_ONE_MINUS_SRC_ALPHA);
    effect->addShadowToNode(cube, filterType, ESM_CAST);
 

[mongoose7]

While mongoose7 is preparing an example may be someone who understands the shaders, look, why xEffects not work with a transparent material, please?

Done: http://irrlicht.sourceforge.net/forum/v ... 36#p294636

[mongoose7]

Somebody repaired xEffects? What about other approaches?

Hmm, I don't know that XEffects is broken.



I'm actually not convinced that you have fixed EffectCB.h as previously suggested. That is, change

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irr::u32 TexVar = 0;

to

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irr::s32 TexVar = 0;

and change

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((irr:f32 *)&TexVar)

to

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&TexVar

Note that the screenshot was taken with Irrlicht Trunk. I tried with 1.8.1 and could only get one light to show (green) but there was no trouble with the transparent cube. Is there a problem with TRANSPARENT_ADD_COLOR in 1.8.1? This is what XEffects uses to combine the lighting passes.

[BlindSide]

Good question Mongoose. If someone wants to share an updated package, I can put the link on the main page. Or perhaps I can chuck it on github and link to that? I'm surprised people are still using this to be honest.

Cheers,

[BlindSide]

Hi all, I've updated the first post to link to the new github page and fixed the TexVar issue while I'm at it.

[CuteAlien]

Yay, BlindSide is back!

[Harch]

Mongoose7, is this OpenGL or DirectX? In DirectX all is OK, but in OpenGL shadows from transparent objects (ALPHA_CHANNEL_REF) don't work.

My irrlicht is Irrlicht 1.8.1 (not latest build 1.9).

[mongoose7]

You have to use 'trunk'. There appears to be a problem with 1.8.1. Fixes in trunk are not back-ported.

[Harch]

I'll try that, thanks.

I will write when checking this.

P.S. Please give me a link to "trunk".

[CuteAlien]

Link to trunk: http://sourceforge.net/p/irrlicht/code/HEAD/tree/
You will need a svn client to download it (on Windows people mostly use TortoiseSVN).

[mongoose7]

You can download a ZIP file ("Download snapshot").

[Harch]

I downloaded a last irrlicht trunk. And also I downloaded the xEffects from the first post. I compiled Irrlicht in release-fast-math-dll(and accurate-math too) mode (Code::Blocks). I included xEffects. I compiled this. And I get the same error: with a transparent cube shadows is no all, but without a transparent cube all is works (with OpenGL driver).

[kilbith]

Hello, Irrlicht newbie here.

I'm trying to add shadow mapping to a large mesh (a whole voxel terrain). But all I'm getting is some large "blinking" squarred shadows over the terrain. A screenshot explains better : http://imgur.com/MGWHgmf

Here is a code snippet :

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EffectHandler *effect = &(*(new PostProcess(device, driver))->m_effect);
 
effect->addPostProcessingEffectFromFile(core::stringc("client/shaders/postprocessing/BlurHP.glsl"));
effect->addPostProcessingEffectFromFile(core::stringc("client/shaders/postprocessing/BlurVP.glsl"));    
effect->addPostProcessingEffectFromFile(core::stringc("client/shaders/postprocessing/BloomP.glsl"));
 
scene::ISceneNode *m_map = smgr->getSceneNodeFromId(666);
 
m_map->setMaterialFlag(video::EMF_LIGHTING, false);
 
E_FILTER_TYPE filterType = (E_FILTER_TYPE)4;
effect->addShadowToNode(m_map, filterType, ESM_BOTH);
 
effect->addShadowLight(SShadowLight(512, v3f(-150, 500, -150), v3f(5, 0, 5), 
    video::SColor(255, 255, 255, 255), 20.0f, 60.0f, 30.0f * core::DEGTORAD));
 

What I'm doing wrong ?