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OGRECave/ogre

Welcome to the Ogre3D channel - www.ogre3d.org

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Guillermo Ojea Quintana

@sercero

@MoralCode OGRE3D hast C# bindings and also there is MOGRE (but I think it is outdated). You will have to convert your code to use the OGRE API which abstracts you from the DirectX API and you will have to also do something about your shaders. One option is to use CG which is not being supported since 2012, another option is porting your shaders to GLSL and another option (more recent) is using the newfangled OGRE unified shader (the language is similar to GLSL).

@MoralCode I think it is better that you ask this in the forums to get better help. You can start here: https://ogrecave.github.io/ogre/api/latest/tutorials.html

carr-7

@carr-7

I tried doing

sceneManager->setFog(Ogre::FOG_LINEAR);

In Ogre 2.3, however it doesn't seem to have done anything, is there something that I might of missed?

Guillermo Ojea Quintana

@sercero

See if this helps: https://forums.ogre3d.org/viewtopic.php?t=82878

carr-7

@carr-7

Ah thanks, so setFog isn't supposed to actually do anything?

Guillermo Ojea Quintana

@sercero

I know that in OGRE 1.x setFog only works if your materials use the Fixed Function Pipeline. That's why I assumed that in OGRE 2.x the function wouldn't even exist

But I think that it is possible to pass a fog parameter to your shaders in OGRE 1.x. It seems that in 2.x as well

Neonit

@Neonit

Can somebody explain to me, why the tutorial code in Samples/2.0/Tutorials/Tutorial01... (also 02 and 03) only defines MainEntryPoints::createSystems() on Apple and IOS? This leads to a linker error on Windows, because the method never gets defined elsewhere. Or did I miss something?

(Also, at least in Tutorial01, MainEntryPoints::getWindowTitle() is also missing on all platforms)

carr-7

@carr-7

_getDerivedScale is returning +inf values when I'm loading a skeleton with the Ogre_glTF plugin. Does anyone know a work around: Ybalrid/Ogre_glTF#32 ?

Matías N. Goldberg

@matiasgoldberg_twitter

Can somebody explain to me, why the tutorial code in Samples/2.0/Tutorials/Tutorial01... (also 02 and 03) only defines MainEntryPoints::createSystems() on Apple and IOS? This leads to a linker error on Windows, because the method never gets defined elsewhere. Or did I miss something?

Hi @Neonit ! Sorry for late reply

Tutorial01 never calls MainEntryPoints::mainAppSingleThreaded nor MainEntryPoints::mainAppMultiThreaded as it defines its own custom main loop for tutorial purposes.

(i.e. INT WINAPI WinMainApp does what mainAppSingleThreaded would do). It does on iOS because iOS was adding too much complexity for a tutorial.

It shouldn't give you linker errors; but I think I see how it may be possible. What compiler were you using? And was it Debug or Release? x64 or x86?
Cheers

Neonit

@Neonit

@matiasgoldberg_twitter MSYS2 gcc, I think it's RelWithDebInfo (so basically Release) and x64.

Neonit

@Neonit

Aah, now that I re-read and understood, what you wrote, it is clear to me. It's because I also compiled System/Desktop/* into the tutorial, although they aren't used.

So nevermind then and thanks for the answer.

J.V.

@JV81608177_twitter

Hi, i'm new in here, does Ogre has a FBX importer ?

Guillermo Ojea Quintana

@sercero

The latest OGRE 1.x versions can use assimp: https://github.com/assimp/assimp/blob/master/doc/Fileformats.md

I don't know how good is the FBX support

J.V.

@JV81608177_twitter

Cool

Thanks

Guillermo Ojea Quintana

@sercero

Check out the forums as well: https://forums.ogre3d.org/googlesearch?cx=017552850584580125495%3Avwxesv72u0c&q=assimp+fbx&t=0&submit=Search

J.V.

@JV81608177_twitter

How does Ogre compares with Urho3d ? I'm trying to decide which codebase i should study

Guillermo Ojea Quintana

@sercero

It depends on what you want to do. Urho3D is a complete game engine not only with graphics but also physics and sound

Besides Urho3D also has an Iverse Kinematics solver integrated and two scripting languages supported

If you plan to use OGRE3D you will have to integrate the libraries to do that yourself

In the case you plan to go for Urho3D, check out also rbfx (Urho rebel fork) it seems that it is getting more support

OGRE3D is "just" a 3D rendering engine, it does a lot but to get to a full game engine is quite a lot of work...

J.V.

@JV81608177_twitter

Thanks

Where can i find ogre's roadmap ?

Guillermo Ojea Quintana

@sercero

For OGRE 1.x you can check here: https://github.com/OGRECave/evolution

Also in the issues you can see the ones marked with 1.13: https://github.com/OGRECave/ogre/issues

I don't know about OGRE 2.x

J.V.

@JV81608177_twitter

I'm considering using Ogre to study computer graphics

but idk if this is a good idea

Guillermo Ojea Quintana

@sercero

You could take a look at bgfx: https://github.com/bkaradzic/bgfx

I think this site is a good start: https://learnopengl.com/

Pavel Rojtberg

@paroj

for learning graphics I would recommend https://paroj.github.io/gltut/ because it gets the basics right - instead of just saying copy & paste this code to get that

but probably I am biased since I keep that tutorial available nowadays

Guillermo Ojea Quintana

@sercero

Yes, that is a great tutorial as well

J.V.

@JV81608177_twitter

Thanks

I'll take a look

Neonit

@Neonit

I have this very short and simple test program where I create an Ogre window, then destroy it, then exit. It segfaults. https://gist.github.com/Neonit/b0a0c8d6e8b6345a13e166c5411297a5 Can someone tell me, why? It's Ogre 2.2.4.

If I remove lines 14 and 16, there is no segfault.

SNiLD

@SNiLD

Well you haven't loaded the OpenGL3PlusRenderSystem plugin at all

But when you segfault it's usually more helpful to attach a debugger and see from there what's going on and what values each variable has

Neonit

@Neonit

I have added the backtrace from the debugger as comment at the end of the gist.

Maybe it's becaus I'm not loading the plugin. I'll try.

SNiLD

@SNiLD

Also you shouldn't create OpenGL3PlusRenderSystem yourself, you get it from root (for example with getAvailableRenderers)

(at least with Ogre 1)

David Young-Chan Kay

@DavidYKay

Hey folks!

My team and I are trying to render text to a 3D surface in OGRE 2.1. It seems we are having trouble properly calling datablock.setTexture(). I've typed up my situation in a gist if you'd like more information. https://gist.github.com/DavidYKay/2c70522f42a98d4672dc384b338cb7ac

Many thanks for any help you may be able to offer.

David Young-Chan Kay

@DavidYKay

Just got a response on the forums: https://forums.ogre3d.org/viewtopic.php?f=25&t=96100

Will implement and update if need be. Thanks very much!