Multiple Render Targets support

Nadro · Post by **Nadro** » Tue Jan 01, 2008 8:45 pm

Hi all,
If You need support for Multiple Render Targets in Irrlicht You can download a patch from:
http://nadro.net46.net/Patches/irrlicht ... port.patch

[This is edited topic about FP RTT and MRTs support]

BlindSide · Post by **BlindSide** » Wed Jan 02, 2008 4:27 am

Thanks, again.

dlangdev · Post by **dlangdev** » Wed Jan 02, 2008 4:47 am

awesome, nadro.

thanks for the hard work.

dlangdev · Post by **dlangdev** » Wed Jan 02, 2008 6:02 am

is it possible if someone can patch version 1.4 with this one. i'll post it up on my sourceforge account. i'll bump the version to 1.4.1

Nadro · Post by **Nadro** » Wed Jan 02, 2008 5:45 pm

Thanks dlangdev and BlindSide. I'm downloading new copy of newest Irrlicht from SVN and I will do test for properly of my code with this version today (+ patch for large Render Target Textures in DX9) bacause I can't tested this code yesterday. I think than I can release code as patch for Irrlicht, after test

dlangdev · Post by **dlangdev** » Wed Jan 02, 2008 8:29 pm

cool, i have an idea.

i could volunteer setting up a patched version of irrlicht 1.4 on my sourceforge account.

i'll set up the svn and give you access to it. you can apply any patch you like there and i'll be able to download and test it with my demo programs.

this patched version will be used as a collection for all code contributions made in this forum. i think we'll be able to collect a good number of features rolled-into version 1.4 going to 1.4.99999, ad infinitum, ad nauseam--1.4.9999999999.

nadro, send me your sourceforge login name and i'll make an access account to the svn repo. you probably might be one initializing the repository if i can't initialize it, i have a day job (writing server side code) and will only be able to work on it after office hours. but you're rest assured, i will put a lot of hours into testing your patched code.

i found the doc for importing source code to svn...

http://svnbook.red-bean.com/en/1.1/ch03 ... 3-sect-7.3

Nadro · Post by **Nadro** » Wed Jan 02, 2008 9:57 pm

OK, I can build version for Irrlicht 1.4 and for Yours Irrlicht 1.4.1 via SVN

All informations all send to You tomorrow.

Code it's clear and ok only You have to improve section "//! ColorFrameBuffer" - constructor in COpenGLTexture.h

For Irrlicht SVN version 1146 I done patch with:
-MRTs for DirectX9 and OpenGL
-Floating Point Textures for DirectX9 and OpenGL
-ATI Radeon FBO Patch for render textures larger than the screen
-Render Target Textures, larger than the screen for DirectX9 created by vi-wer (Thanks vi-wer for excellent patch

link to topic: http://irrlicht.sourceforge.net/phpBB2/ ... hp?t=24255)

You can download patches (first for patch Irrlicht include, and second for Irrlicht source) from:
http://chernobylstudio.com/download/nad ... lude.patch
http://chernobylstudio.com/download/nad ... urce.patch

Patches are tested and all works 100% properly!!!

I will release IrrCg version with support this features and include Shadow Mapping and MRTs demos

dlangdev · Post by **dlangdev** » Thu Jan 03, 2008 12:06 am

hey nadro, that was quick.

this is the patch you ran against the svn version? it sounds like that's the one you did. i'll do the same thing here as well.

thanks for the hard work.

be well.

Nadro · Post by **Nadro** » Fri Jan 04, 2008 1:31 pm

Yes

OK, I tested this code with Linux and all works properly!!! I found small error in my code .

You have to replace in COpenGLExtensionHandler.cpp in:

Code: Select all

pGlDrawBuffers = (PFNGLBINDFRAMEBUFFEREXTPROC)

IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glDrawBuffers"));

(PFNGLBINDFRAMEBUFFEREXTPROC) to (PFNGLDRAWBUFFERSPROC)

After improve this all ot's ok

If this code work properly on Linux, so this is good for MacOSX

but I can't test this code on MacOSX because I don't have them

Now code is clean and full compatible with Irrlicht

No memory leakes etc.

Nadro · Post by **Nadro** » Sun Jun 08, 2008 2:46 pm

I prebuilded MRTs + Floating Point Textures patch for Irrlicht Rev 1361 and new version of Vi-wer large RTT textures for DirectX. Patch require 2 files: CD3D9DepthResizer.cpp and CD3D9DepthResizer.h from:
http://irrlicht.sourceforge.net/phpBB2/ ... 5&start=15
(Patch add automatic all required modification in CD3D9Driver files for large RTT in DirectX, so You needn't add in manualy). In this modification is apply patch for ATI FBO BUGFIX (this modificated FBO is faster about 40% than standard Irrlicht FBO). Topic about this bugfix:
http://irrlicht.sourceforge.net/phpBB2/ ... hp?t=25469
Patch is build only for OpenGL and Diretct3D9, so You should disable other video modes in IrrCompileConfig.h You can download it from:
* Irrlicht Include patch
http://nadro.byethost16.com/Patches/MRT ... lude.patch
* Irrlicht Source patch
http://nadro.byethost16.com/Patches/MRT ... urce.patch

Patch is 100% compatible with Windows and Linux (other platforms are untested, but should work properly). All this features was tested by me and all works ok.

Midnight · Post by **Midnight** » Mon Jun 09, 2008 4:17 pm

damn I love polocks.

elena · Post by **elena** » Sat Feb 14, 2009 10:21 am

Nadro great work, thank you. But what about solaris platform?

Nadro · Post by **Nadro** » Sat Feb 14, 2009 1:39 pm

Solaris use Linux type extension handler? So this code should properly working with Solaris platform also. But are this features support by the Solaris Open-Source NVIDIA and AMD-ATI drivers?

Mel · Post by **Mel** » Tue Mar 17, 2009 10:06 am

I'm wondering that if after all the modifications that have been done to the engine, would these patches still work?

Nadro · Post by **Nadro** » Tue Mar 17, 2009 10:39 am

FP textures patch need some modification to working with current SVN version, but if You need only MRTs from it, patch is avaiable on Irrlicht patch tracker (it's probably compatible with current SVN or eventually need only minor, cosmetics improvments)