*OgrePostFilterManager* is born

[Manuel]

Well, i just finished assembling my sub-project, the OgrePostFilterManager.
By using the addon, you'll be able to implement postfilter effects in Ogre just like you think about the compounding passes: i'll obviously release the code, but i need to clean it up and debug it a little more.
While testing it, i ported the good old heat vision effect:



Then, i fired up RenderMonkey and exported my 3-passes bloom effect: i've exported it with the free Ogre's RenderMonkey exporter and then manually adjusted.
While the bloom was already done (i coded it time ago), the entire Ogre implementation process has required no more than 1 minutes (!), just the time to remember the filter chain

Here are some shoots of the original "Samples/CubeMapping" demo with the bloom addition.



i love this one!






And here are the Ogre's implementations:

HeatVision

Code: Select all

         RenderTexture* rt0 = SharedData::getSingleton().iRoot->getRenderSystem()->createRenderTexture( "rt0", 256, 256 );
         setupRenderTextureAndViewport( rt0 );
         OgrePostFilterPass *pass0, *pass1;

         pass0 = new OgrePostFilterPass( "Fury/HeatVision/LightToHeat" );
         pass0->addInputTexture( NULL );
         pass0->setOutputTexture( rt0 );

         pass1 = new OgrePostFilterPass( "Fury/HeatVision/Blur" );
         pass1->addInputTexture( rt0 );
         pass1->setOutputTexture( NULL );

         filterPasses.push_back( pass0 );
         filterPasses.push_back( pass1 );


Bloom

Code: Select all

         RenderTexture* rt0 = SharedData::getSingleton().iRoot->getRenderSystem()->createRenderTexture( "rt0", 128, 128 );
         setupRenderTextureAndViewport( rt0 );

         RenderTexture* rt1 = SharedData::getSingleton().iRoot->getRenderSystem()->createRenderTexture( "rt1", 256, 256 );
         setupRenderTextureAndViewport( rt1 );

         OgrePostFilterPass *pass0, *pass1, *pass2;

         pass0 = new OgrePostFilterPass( "PostFilters/Blur0" );
         pass0->addInputTexture( NULL );
         pass0->setOutputTexture( rt0 );
         filterPasses.push_back( pass0 );

         pass1 = new OgrePostFilterPass( "PostFilters/Blur1" );
         pass1->addInputTexture( rt0 );
         pass1->setOutputTexture( rt1 );
         filterPasses.push_back( pass1 );

         pass2 = new OgrePostFilterPass( "PostFilters/Bloom" );
         pass2->addInputTexture( NULL );
         pass2->addInputTexture( rt1 );
         pass2->setOutputTexture( NULL );
         filterPasses.push_back( pass2 );


As soon as i'll find the time to clean it up and testing a bit more i'll release it

[Robomaniac]

l33t

[Praetor]

Wow, I'd been thinking about this for a while, but of course i was far from the point when i'd need to start doing post processing. Very impressive indeed.

[CombatWombat]

Ooh very nice!

[joi]

Cool! KEEP IT UP!

[nfz]

Fantastic stuff Manual! Can't wait to see the code. I have been following your posts about post filtering with great interest since I have been modifying Ogre internals to make this process a lot easier. Some of its in cvs HEAD already but the changes to RTT aren't yet. Wumpus is also enhancing RTT which will make texture rendering a lot easier.

I think your post is an excellent candidate for the the Showcase section, but who knows, maybe it will get moved .

[spookyboo]

I'm was planning something similar in my FXplugin that I'm working on. I'm afraid that I have to steal your code and use that.

[skullfire]

awesome, simply brilliant! *love this community!*

[Manuel]

@nfz
I didn't know you modified Ogre internals, so i think it will be pretty fast
Are these modifications into the "ogreaddons" directory?! Sure i'll take a look because i have some thoughts about this too
Feel free to move the thread where you think is best: i have had some doubt about where to post it..

@spookyboo
Eheh No problem for me, i'm glad i can help you out!

[supersuper]

Beautiful pictures!

Cannot wait for the code....

[discipline]

very beautiful! That razor is looking better than ever!

[:wumpus:]

Sounds very cool and useful.. I'm sure it could get you a place in ogreaddons if you want Shouldn't this be in showcase?

[Manuel]

Sounds very cool and useful.. I'm sure it could get you a place in ogreaddons if you want Shouldn't this be in showcase?

Well, that's a good place to live

[sinbad]

Lovely job Yes, this should go into ogreaddons - if it's not in the next couple of days, ask one of the other devs to organise it since I'll be on leave.

[jacmoe]

This is beautiful!
Finally, it looks like you can actually program shaders with Ogre without bending over backwards!
Really nice! Looking forward to playing with this!

[Praetor]

SharedData::getSingleton().iRoot->getRenderSystem()->createRenderTexture( "rt0", 256, 256 );

Hrrm, is this your code, is this a call into the Ogre engine?

@nfz This seems a little awkward, like he's reaching into some dark area of the engine. iRoot? Is this the kind of thing you were talking about changing with the RTT elements of Ogre? Or maybe this is Manual's class.

Either way, excellent job again. Needs a wiki and an addon. I can't wait to just "plug" in some shaders!

[Praetor]

Oh, and a question for Manual about your heat vision. It looks like the shader just takes the light from the scene and uses that? Have you thought about creating "heat textures" for the entities? When the heat vision is off, you use the normal textures, when the heat vision is on, you use these textures to represent the entity's heat? Thought maybe it would be a help to be more like real heat vision.

[jacmoe]

Here is the revival of the Heat Vision:
http://www.ogre3d.org/phpBB2/viewtopic.php?t=8031&highlight=heat+vision

((The rest of the search results for "heat vision", require all words, are very interesting, indeed))

[Praetor]

Ah, very good. thanks

[Manuel]

Thank you for the appreciation friends, also props to the great Ogre that let's you what you really want!

@Praetor

Hrrm, is this your code, is this a call into the Ogre engine?

Yes, it's my own code: it's a singleton (SharedData) to remove hacky globals, except rare cases, i hate them all

Code: Select all

iRoot

isn't a dark area of the engine, you need it if you want to be able to create renderTexture objects the right way.
About the HeatVision: sure it would be great implementing "heat textures" but the demo i wrote was a just-for-fun thing, usefull only for getting experienced on shaders programming. Feel free to modify it

[Manuel]

Lovely job Yes, this should go into ogreaddons - if it's not in the next couple of days, ask one of the other devs to organise it since I'll be on leave.

@sinbad
Thank you sinbad, i hope to be able to do it in the next days. In addition, i'll really appreciate any design-related comments/critics (from your own but also from everyone).

[Manuel]

This is beautiful!
Finally, it looks like you can actually program shaders with Ogre without bending over backwards!
Really nice! Looking forward to playing with this!

Thank you jacmoe, hope to release it soon!

[supersuper]

Please include more examples of filters when you release this (to prove that it works in all cases).

Crashy would certainly love this code for his demo.

[Marcel_S]

WOW!! we want that!!!!

great work, the posteffects are beautiful!

[Crashy]

Wonderfull