[osg-users] osgParticle
Good day! I built custom particle system like in tutorials on osg site Now I'd like to control it using event handlers For example when I press a key I'd like to emit particle What's the best way to do it? Thanx in advance Bye ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Simple question about osg window under vista
Hi guys! Could you please provide me answers how to make this thing under vista I create viewer using this viewer.setUpViewInWindow(0,0,vp_Width,vp_Height); and use windows dialogs to control state of my application. I use clone mode to connect primary and secondary display. For example my screen resolution 800x600 so when I create in osg window 800*600 I still see status bar with startup button but I don't want to see it. When I try to use fullscreen mode my dialogs becomes behind osg window and I can't see them. What should I do? Thanx in advance Bye ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] FBO Rendering
Hi!
Today I tried to adapt you example to texture2D as input textures and
rendertargets but no luck. With texture2Drect works fine but with texture2d it
doesn’t work at all. I use 8600GT under vista with 174 drivers(osg svn)
Roman
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of J.P. Delport
Sent: Tuesday, May 20, 2008 5:29 PM
To: OpenSceneGraph Users
Subject: Re: [osg-users] FBO Rendering
Hi Roman,
attached is an example I made that uses ping-pong rendering. It tries to
simulate the game of life, see e.g.
http://en.wikipedia.org/wiki/Conway's_Game_of_Life
Each iteration depends on the previous one.
I hope the code makes sense. At least the output looks pretty :)
regards
jp
Роман Григорьев wrote:
Sorry guys for my f**king outlook
Here is shaders and source u can take from 1-st message Roman
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of J.P. Delport
Sent: Tuesday, May 20, 2008 2:17 PM
To: OpenSceneGraph Users
Subject: Re: [osg-users] FBO Rendering
Hi,
sorry, I cannot read the attachments in your mail. I will try to make a
simple ping-pong example instead.
jp
Roman Grigoriev wrote:
Here is my shaders. It's shaders from my current version that do not use
MRT.
Source code you can take from my previous messageÎÅÉIf you want to have my
setup with FBO MRT just email me. ÎÅÉÎÅÉÎÅÉÎÅÉ-Original
Message-ÎÅÉFrom: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of J.P.
DelportÎÅÉSent: Tuesday, May 20, 2008 1:46 PMÎÅÉTo: OpenSceneGraph
UsersÎÅÉSubject: Re: [osg-users] FBO RenderingÎÅÉÎÅÉHi,ÎÅÉÎÅÉòÏÍÁÎ
çÒÉÇÏÒØÅ× wrote:ÎÅÉ Hi I try to implement cellular automata clouds on OSG
and have some problemÎÅÉ ÎÅÉ 1) I can't use (or don't know) ping-pong
rendering technique as ÎÅÉ described here
http://www.m3xbox.com/GPU_blog/?m=200712ÎÅÉ ÎÅÉ Because when I attach 2
textures to camera FBO in rendering loop camera ÎÅÉ render to 2 FBO but I
need to change dynamically which draw buffer I ÎÅÉ need to draw/
ÎÅÉÎÅÉCan
you not also pass the draw buffer as a uniform to the shader and ÎÅÉthen
use
that in glFragData[buffer] call? This can select which of two ÎÅÉtextures
to
render to.ÎÅÉÎÅÉ I've red about RenderStage but how to control it is
ÎÅÉ
unclear for me. I've make a workaround that create another camera that ÎÅÉ
render FBO texture to another FBO texture that can I attach in 1 stage ÎÅÉ
to calculate cellular automata.ÎÅÉÎÅÉIf you have the same shader code for
both cameras, I think you can get ÎÅÉaway with only a single camera and
multiple targets.ÎÅÉÎÅÉ ÎÅÉ 2) I'd like to do RTT rendering not in
every
frame. But As I understand ÎÅÉ OSG create rendercashe to strore rendering
order how can I dynamically ÎÅÉ attach and remove camera from rendering
order? ÎÅÉÎÅÉSwitching on and off could be done with Switch node or mask
as
Robert ÎÅÉsaid. Not sure about switching order dynamically, but I'm still
not
sure ÎÅÉyou need it.ÎÅÉÎÅÉ ÎÅÉ See my example. If anyone is interested
in my program I can share.ÎÅÉÎÅÉIf you could send me a simple version of
your shader I can have a look.ÎÅÉÎÅÉjpÎÅÉÎÅÉ ÎÅÉ Thanx in
advanceÎÅÉ
ÎÅÉ RomanÎÅÉ ÎÅÉ
ÎÅÉ
ÎÅÉ
ÎÅÉ ___ÎÅÉ osg-users mailing
listÎÅÉ osg-users@lists.openscenegraph.orgÎÅÉ
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.orgÎÅÉÎÅÉ--
ÎÅÉThis message is subject to the CSIR's copyright terms and conditions,
e-mail legal notice, and implemented Open Document Format (ODF) standard.
ÎÅÉThe full disclaimer details can be found at
http://www.csir.co.za/disclaimer.html.ÎÅÉÎÅÉThis message has been scanned
for viruses and dangerous content by MailScanner, ÎÅÉand is believed to be
clean. MailScanner thanks Transtec Computers for their
support.ÎÅÉÎÅÉ___ÎÅÉosg-users
mailing
list[EMAIL
PROTECTED]ÎÅÉhttp://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.orgÎÅÉ
begin 666 cell_fp.glsl
M#0HO*D9204=-14Y47U-([EMAIL PROTECTED]/+@(.[AZ^#W[[EMAIL PROTECTED]G5N
M:69OFT@V%MQEC)$($-E;Q?=5X.PT*+R_JX/#RX[EMAIL PROTECTED]
M;FEF;W)M('-A;7!L97(R1!.;[EMAIL PROTECTED]@\/+@(.[C\.#MZ/?H
MXN#^^7C[B#NX?KE[. -G5N:69OFT@V%MQEC)$($5L:7!S;VED7W1E
M#L-@T*=6YI9F]R;2!F;]A=!D=EM93L-@T*+R_QZ_/[EMAIL PROTECTED]SE
M^7MZ/[EMAIL PROTECTED]@[EMAIL
PROTECTED];FEF;W)M(9L;V%T(9.;VES94]F9G-E=$5X
[EMAIL PROTECTED];FEF;W)M(9L;V%T(9.;VES94]F9G-E=$5X=%D[#0IU;FEF;W)M
M(9L;V%T(9.;VES94]F9G-E=$AU;[EMAIL PROTECTED];FEF;W)M(9L;V%T(9.;VES
M94]F9G-E=$AU;5D[#0IU;FEF;W)M(9L;V%T(9.;[EMAIL PROTECTED]
M#0IU;FEF;W)M(9L;V%T(9.;VES94]F9G-E=$%C=%D[#0H-B\O\.#G[.7P
M^R#QZ^[_(.[AZ^#J[N(-G5N:69OFT@:6YT(9396=M96YT5VED=@[#0IU
M;FEF;W)M(EN=!F4V5G;65N=$AE:[EMAIL PROTECTED]B\O\.#G[.7P^R#JX/#R
M^R#NX[EMAIL PROTECTED];FEF;W)M(EN=!F5VED
Re: [osg-users] FBO Rendering
Thanx JP. Sorry for my mistake (forget about texture coordinates in fragment shader that differ from texture rectangle to texture2D) but all your example works fine and have same framerate 1000 fps. I try to modify my example to see my framerates to choose method of rendering. Thanx Bye Roman -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of J.P. Delport Sent: Wednesday, May 21, 2008 12:28 PM To: OpenSceneGraph Users Subject: Re: [osg-users] FBO Rendering Hi, attached is the new version of the example. I think this should work fine with Texture2D as well. No MRT is used, only two FBO's that are switched between frames. Hope this helps. regards jp J.P. Delport wrote: Hi, I think my example does not use FBO in the correct way. It does not seem to be good to attach textures as both input and output. For example in my demo the output is not always the same. I have made a new example that uses two cameras with switches above them to do ping-pong and this works much better. I get the same results every time. See here for good explanation of ping-pong: http://www.mathematik.uni-dortmund.de/~goeddeke/gpgpu/tutorial.html#fe edback2 The new example uses the first method described here: Use one FBO with one attachment per texture that is rendered to, and bind a different FBO in each rendering pass. I will send this soon. Just cleaning it up. jp Роман Григорьев wrote: Hi! Today I tried to adapt you example to texture2D as input textures and rendertargets but no luck. With texture2Drect works fine but with texture2d it doesn’t work at all. I use 8600GT under vista with 174 drivers(osg svn) Roman -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of J.P. Delport Sent: Tuesday, May 20, 2008 5:29 PM To: OpenSceneGraph Users Subject: Re: [osg-users] FBO Rendering Hi Roman, attached is an example I made that uses ping-pong rendering. It tries to simulate the game of life, see e.g. http://en.wikipedia.org/wiki/Conway's_Game_of_Life Each iteration depends on the previous one. I hope the code makes sense. At least the output looks pretty :) regards jp Роман Григорьев wrote: Sorry guys for my f**king outlook Here is shaders and source u can take from 1-st message Roman -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of J.P. Delport Sent: Tuesday, May 20, 2008 2:17 PM To: OpenSceneGraph Users Subject: Re: [osg-users] FBO Rendering Hi, sorry, I cannot read the attachments in your mail. I will try to make a simple ping-pong example instead. jp Roman Grigoriev wrote: Here is my shaders. It's shaders from my current version that do not use MRT. Source code you can take from my previous messageÎÅÉIf you want to have my setup with FBO MRT just email me. ÎÅÉÎÅÉÎÅÉÎÅÉ-Original Message-ÎÅÉFrom: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of J.P. DelportÎÅÉSent: Tuesday, May 20, 2008 1:46 PMÎÅÉTo: OpenSceneGraph UsersÎÅÉSubject: Re: [osg-users] FBO RenderingÎÅÉÎÅÉHi,ÎÅÉÎÅÉòÏÍÁÎ çÒÉÇÏÒØÅ× wrote:ÎÅÉ Hi I try to implement cellular automata clouds on OSG and have some problemÎÅÉ ÎÅÉ 1) I can't use (or don't know) ping-pong rendering technique as ÎÅÉ described here http://www.m3xbox.com/GPU_blog/?m=200712ÎÅÉ ÎÅÉ Because when I attach 2 textures to camera FBO in rendering loop camera ÎÅÉ render to 2 FBO but I need to change dynamically which draw buffer I ÎÅÉ need to draw/ ÎÅÉÎÅÉCan you not also pass the draw buffer as a uniform to the shader and ÎÅÉthen use that in glFragData[buffer] call? This can select which of two ÎÅÉtextures to render to.ÎÅÉÎÅÉ I've red about RenderStage but how to control it is ÎÅÉ unclear for me. I've make a workaround that create another camera that ÎÅÉ render FBO texture to another FBO texture that can I attach in 1 stage ÎÅÉ to calculate cellular automata.ÎÅÉÎÅÉIf you have the same shader code for both cameras, I think you can get ÎÅÉaway with only a single camera and multiple targets.ÎÅÉÎÅÉ ÎÅÉ 2) I'd like to do RTT rendering not in every frame. But As I understand ÎÅÉ OSG create rendercashe to strore rendering order how can I dynamically ÎÅÉ attach and remove camera from rendering order? ÎÅÉÎÅÉSwitching on and off could be done with Switch node or mask as Robert ÎÅÉsaid. Not sure about switching order dynamically, but I'm still not sure ÎÅÉyou need it.ÎÅÉÎÅÉ ÎÅÉ See my example. If anyone is interested in my program I can share.ÎÅÉÎÅÉIf you could send me a simple version of your shader I can have a look.ÎÅÉÎÅÉjpÎÅÉÎÅÉ ÎÅÉ Thanx in advanceÎÅÉ ÎÅÉ RomanÎÅÉ ÎÅÉ ÎÅÉ ÎÅÉ ÎÅÉ ___ÎÅÉ osg-users mailing listÎÅÉ osg-users@lists.openscenegraph.orgÎÅÉ http://lists.openscenegraph.org/listinfo.cgi
Re: [osg-users] FBO Rendering
I integrate your last example with my cellular automata and have some results my approach 100 fps no fbo switching 2 cameras. your approach 70 fps with fbo switching 1 camera. maybe switching fbo is very costly to OGL state mashine? Roman -Original Message- From: osg-users-bounces @lists.openscenegraph.org [mailto:[EMAIL PROTECTED] On Behalf Of J.P. Delport Sent: Wednesday, May 21, 2008 1:29 PM To: OpenSceneGraph Users Subject: Re: [osg-users] FBO Rendering Hi, please use the latest example. The first one I sent has some problems: it makes mistakes in reading some input texture values because the textures are bound as input and output. Multiple runs of the example gave multiple results, but the results should be the same every time. The latest example gives the same results every time. jp Роман Григорьев wrote: Thanx JP. Sorry for my mistake (forget about texture coordinates in fragment shader that differ from texture rectangle to texture2D) but all your example works fine and have same framerate 1000 fps. I try to modify my example to see my framerates to choose method of rendering. Thanx Bye Roman -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of J.P. Delport Sent: Wednesday, May 21, 2008 12:28 PM To: OpenSceneGraph Users Subject: Re: [osg-users] FBO Rendering Hi, attached is the new version of the example. I think this should work fine with Texture2D as well. No MRT is used, only two FBO's that are switched between frames. Hope this helps. regards jp J.P. Delport wrote: Hi, I think my example does not use FBO in the correct way. It does not seem to be good to attach textures as both input and output. For example in my demo the output is not always the same. I have made a new example that uses two cameras with switches above them to do ping-pong and this works much better. I get the same results every time. See here for good explanation of ping-pong: http://www.mathematik.uni-dortmund.de/~goeddeke/gpgpu/tutorial.html#fe edback2 The new example uses the first method described here: Use one FBO with one attachment per texture that is rendered to, and bind a different FBO in each rendering pass. I will send this soon. Just cleaning it up. jp Роман Григорьев wrote: Hi! Today I tried to adapt you example to texture2D as input textures and rendertargets but no luck. With texture2Drect works fine but with texture2d it doesn’t work at all. I use 8600GT under vista with 174 drivers(osg svn) Roman -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of J.P. Delport Sent: Tuesday, May 20, 2008 5:29 PM To: OpenSceneGraph Users Subject: Re: [osg-users] FBO Rendering Hi Roman, attached is an example I made that uses ping-pong rendering. It tries to simulate the game of life, see e.g. http://en.wikipedia.org/wiki/Conway's_Game_of_Life Each iteration depends on the previous one. I hope the code makes sense. At least the output looks pretty :) regards jp Роман Григорьев wrote: Sorry guys for my f**king outlook Here is shaders and source u can take from 1-st message Roman -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of J.P. Delport Sent: Tuesday, May 20, 2008 2:17 PM To: OpenSceneGraph Users Subject: Re: [osg-users] FBO Rendering Hi, sorry, I cannot read the attachments in your mail. I will try to make a simple ping-pong example instead. jp Roman Grigoriev wrote: Here is my shaders. It's shaders from my current version that do not use MRT. Source code you can take from my previous messageÎÅÉIf you want to have my setup with FBO MRT just email me. ÎÅÉÎÅÉÎÅÉÎÅÉ-Original Message-ÎÅÉFrom: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of J.P. DelportÎÅÉSent: Tuesday, May 20, 2008 1:46 PMÎÅÉTo: OpenSceneGraph UsersÎÅÉSubject: Re: [osg-users] FBO RenderingÎÅÉÎÅÉHi,ÎÅÉÎÅÉòÏÍÁÎ çÒÉÇÏÒØÅ× wrote:ÎÅÉ Hi I try to implement cellular automata clouds on OSG and have some problemÎÅÉ ÎÅÉ 1) I can't use (or don't know) ping-pong rendering technique as ÎÅÉ described here http://www.m3xbox.com/GPU_blog/?m=200712ÎÅÉ ÎÅÉ Because when I attach 2 textures to camera FBO in rendering loop camera ÎÅÉ render to 2 FBO but I need to change dynamically which draw buffer I ÎÅÉ need to draw/ ÎÅÉÎÅÉCan you not also pass the draw buffer as a uniform to the shader and ÎÅÉthen use that in glFragData[buffer] call? This can select which of two ÎÅÉtextures to render to.ÎÅÉÎÅÉ I've red about RenderStage but how to control it is ÎÅÉ unclear for me. I've make a workaround that create another camera that ÎÅÉ render FBO texture to another FBO texture that can I attach in 1 stage ÎÅÉ to calculate cellular automata.ÎÅÉÎÅÉIf you have the same shader code for both cameras, I think you can get ÎÅÉaway with only a single camera and multiple
[osg-users] FBO Rendering
Hi I try to implement cellular automata clouds on OSG and have some problem
1) I can’t use (or don’t know) ping-pong rendering technique as described here
http://www.m3xbox.com/GPU_blog/?m=200712
Because when I attach 2 textures to camera FBO in rendering loop camera render
to 2 FBO but I need to change dynamically which draw buffer I need to draw/
I’ve red about RenderStage but how to control it is unclear for me. I’ve make a
workaround that create another camera that render FBO texture to another FBO
texture that can I attach in 1 stage to calculate cellular automata.
2) I’d like to do RTT rendering not in every frame. But As I understand OSG
create rendercashe to strore rendering order how can I dynamically attach and
remove camera from rendering order?
See my example. If anyone is interested in my program I can share.
Thanx in advance
Roman
/* OpenSceneGraph example, osgmultiplerendertargets.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the Software), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* THE SOFTWARE IS PROVIDED AS IS, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include osg/GLExtensions
#include osg/Node
#include osg/Geometry
#include osg/Notify
#include osg/MatrixTransform
#include osg/Texture2D
#include osg/TextureRectangle
#include osg/ColorMask
#include osg/Material
#include osg/ClampColor
#include osgDB/ReadFile
#include osgDB/FileUtils
#include osgGA/TrackballManipulator
#include osgGA/FlightManipulator
#include osgGA/DriveManipulator
#include osgViewer/Viewer
#include iostream
float random(float min,float max) { return min +
(max-min)*(float)rand()/(float)RAND_MAX; }
osgViewer::Viewer viewer;
osg::ref_ptrosg::Texture2D LTexture0 = new osg::Texture2D;
osg::ref_ptrosg::Texture2D LTexture1 = new osg::Texture2D;
osg::ref_ptrosg::Texture2D LTexture2 = new osg::Texture2D;
osg::ref_ptrosg::Texture2D LTexture3 = new osg::Texture2D;
osg::Texture2D* noise_tex= new osg::Texture2D;
osg::Texture2D* elipsoid_tex= new osg::Texture2D;
osg::ref_ptrosg::Camera cellCamera = new osg::Camera;
osg::ref_ptrosg::Camera cellCamera1 = new osg::Camera;
osg::ref_ptrosg::Camera cellCamera2 = new osg::Camera;
osg::ref_ptrosg::Camera finalCamera = new osg::Camera;
static bool seq = true;
osg::Uniform* inputtex = new osg::Uniform(inputtex,0);
osg::Uniform* outputtex = new osg::Uniform(outputtex,1);
osg::Uniform* fNoiseOffsetExtX = new osg::Uniform(fNoiseOffsetExtX,0.02f);
osg::Uniform* fNoiseOffsetExtY = new osg::Uniform(fNoiseOffsetExtY,0.02f);
osg::Uniform* fNoiseOffsetHumX = new osg::Uniform(fNoiseOffsetHumX,0.02f);
osg::Uniform* fNoiseOffsetHumY = new osg::Uniform(fNoiseOffsetHumY,0.02f);
osg::Uniform* fNoiseOffsetActX = new osg::Uniform(fNoiseOffsetActX,0.02f);
osg::Uniform* fNoiseOffsetActY = new osg::Uniform(fNoiseOffsetActY,0.02f);
class UniformVarying : public osg::Uniform::Callback
{
public:
virtual void operator () (osg::Uniform* uniform, osg::NodeVisitor* nv)
{
const osg::FrameStamp* fs = nv-getFrameStamp();
double simulationTime = fs-getSimulationTime();
if (_firstCall)
{
_firstCall = false;
_startTime = simulationTime;
}
_time = simulationTime-_startTime;
uniform-set(_time);
_startTime = simulationTime;
// std::cout_timestd::endl;
fNoiseOffsetActX-set(random(0,0.5));
fNoiseOffsetActY-set(random(0,0.5));
fNoiseOffsetHumX-set(random(0,0.5));
fNoiseOffsetHumY-set(random(0,0.5));
fNoiseOffsetExtX-set(random(0,0.5));
fNoiseOffsetExtY-set(random(0,0.5));
osg::ref_ptrosg::StateSet cellstateset1
=cellCamera-getOrCreateStateSet();
osg::ref_ptrosg::StateSet cellstateset2
=cellCamera2-getOrCreateStateSet();
osg::ref_ptrosg::StateSet finalstateset1
=finalCamera-getOrCreateStateSet();
if(seq)
{
inputtex-set(0);
outputtex-set(1);
//
Re: [osg-users] FBO Rendering
Sorry guys for my f**king outlook
Here is shaders and source u can take from 1-st message
Roman
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of J.P. Delport
Sent: Tuesday, May 20, 2008 2:17 PM
To: OpenSceneGraph Users
Subject: Re: [osg-users] FBO Rendering
Hi,
sorry, I cannot read the attachments in your mail. I will try to make a
simple ping-pong example instead.
jp
Roman Grigoriev wrote:
Here is my shaders. It's shaders from my current version that do not use MRT.
Source code you can take from my previous messageÎÅÉIf you want to have my
setup with FBO MRT just email me. ÎÅÉÎÅÉÎÅÉÎÅÉ-Original
Message-ÎÅÉFrom: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of J.P.
DelportÎÅÉSent: Tuesday, May 20, 2008 1:46 PMÎÅÉTo: OpenSceneGraph
UsersÎÅÉSubject: Re: [osg-users] FBO RenderingÎÅÉÎÅÉHi,ÎÅÉÎÅÉòÏÍÁÎ
çÒÉÇÏÒØÅ× wrote:ÎÅÉ Hi I try to implement cellular automata clouds on OSG
and have some problemÎÅÉ ÎÅÉ 1) I can't use (or don't know) ping-pong
rendering technique as ÎÅÉ described here
http://www.m3xbox.com/GPU_blog/?m=200712ÎÅÉ ÎÅÉ Because when I attach 2
textures to camera FBO in rendering loop camera ÎÅÉ render to 2 FBO but I
need to change dynamically which draw buffer I ÎÅÉ need to draw/
ÎÅÉÎÅÉCan
you not also pass the draw buffer as a uniform to the shader and ÎÅÉthen use
that in glFragData[buffer] call? This can select which of two ÎÅÉtextures to
render to.ÎÅÉÎÅÉ I've red about RenderStage but how to control it is ÎÅÉ
unclear for me. I've make a workaround that create another camera that ÎÅÉ
render FBO texture to another FBO texture that can I attach in 1 stage ÎÅÉ
to calculate cellular automata.ÎÅÉÎÅÉIf you have the same shader code for
both cameras, I think you can get ÎÅÉaway with only a single camera and
multiple targets.ÎÅÉÎÅÉ ÎÅÉ 2) I'd like to do RTT rendering not in every
frame. But As I understand ÎÅÉ OSG create rendercashe to strore rendering
order how can I dynamically ÎÅÉ attach and remove camera from rendering
order? ÎÅÉÎÅÉSwitching on and off could be done with Switch node or mask
as
Robert ÎÅÉsaid. Not sure about switching order dynamically, but I'm still
not
sure ÎÅÉyou need it.ÎÅÉÎÅÉ ÎÅÉ See my example. If anyone is interested
in my program I can share.ÎÅÉÎÅÉIf you could send me a simple version of
your shader I can have a look.ÎÅÉÎÅÉjpÎÅÉÎÅÉ ÎÅÉ Thanx in advanceÎÅÉ
ÎÅÉ RomanÎÅÉ ÎÅÉ
ÎÅÉ
ÎÅÉ
ÎÅÉ ___ÎÅÉ osg-users mailing
listÎÅÉ osg-users@lists.openscenegraph.orgÎÅÉ
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.orgÎÅÉÎÅÉ--
ÎÅÉThis message is subject to the CSIR's copyright terms and conditions,
e-mail legal notice, and implemented Open Document Format (ODF) standard.
ÎÅÉThe full disclaimer details can be found at
http://www.csir.co.za/disclaimer.html.ÎÅÉÎÅÉThis message has been scanned
for viruses and dangerous content by MailScanner, ÎÅÉand is believed to be
clean. MailScanner thanks Transtec Computers for their
support.ÎÅÉÎÅÉ___ÎÅÉosg-users
mailing
list[EMAIL
PROTECTED]ÎÅÉhttp://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.orgÎÅÉ
begin 666 cell_fp.glsl
M#0HO*D9204=-14Y47U-([EMAIL PROTECTED]/+@(.[AZ^#W[[EMAIL PROTECTED]G5N
M:69OFT@V%MQEC)$($-E;Q?=5X.PT*+R_JX/#RX[EMAIL PROTECTED]
M;FEF;W)M('-A;7!L97(R1!.;[EMAIL PROTECTED]@\/+@(.[C\.#MZ/?H
MXN#^^7C[B#NX?KE[. -G5N:69OFT@V%MQEC)$($5L:7!S;VED7W1E
M#L-@T*=6YI9F]R;2!F;]A=!D=EM93L-@T*+R_QZ_/[EMAIL PROTECTED]SE
M^7MZ/[EMAIL PROTECTED]@[EMAIL PROTECTED];FEF;W)M(9L;V%T(9.;VES94]F9G-E=$5X
[EMAIL PROTECTED];FEF;W)M(9L;V%T(9.;VES94]F9G-E=$5X=%D[#0IU;FEF;W)M
M(9L;V%T(9.;VES94]F9G-E=$AU;[EMAIL PROTECTED];FEF;W)M(9L;V%T(9.;VES
M94]F9G-E=$AU;5D[#0IU;FEF;W)M(9L;V%T(9.;[EMAIL PROTECTED]
M#0IU;FEF;W)M(9L;V%T(9.;VES94]F9G-E=$%C=%D[#0H-B\O\.#G[.7P
M^R#QZ^[_(.[AZ^#J[N(-G5N:69OFT@:6YT(9396=M96YT5VED=@[#0IU
M;FEF;W)M(EN=!F4V5G;65N=$AE:[EMAIL PROTECTED]B\O\.#G[.7P^R#JX/#R
M^R#NX[EMAIL PROTECTED];FEF;W)M(EN=!F5VED=@[#0IU;FEF;W)M(EN=!F
M25I9VAT.R -@T*+R_Q[.7YYWH_R#O[B#JX/#RY2#NX[EMAIL PROTECTED](.3K_R#B
M^_?H\OE[C_(.'KZ.;@Z?CH]2#Q[O'EY.7I( T*=6YI9F]R;2!F;]A= @
[EMAIL PROTECTED];2!F;]A= @[EMAIL PROTECTED]
M;2!F;]A= @9D]F9G-E=%HQ.PT*=6YI9F]R;2!F;]A= @9D]F9G-E=%HR
M.PT*#0IF;]A= [EMAIL PROTECTED]/=AEE-E9VUE;[EMAIL PROTECTED]
M;G1);F1E%]L;V-A;[EMAIL PROTECTED],B!V3]C86Q55E]L;V-A;D-GL-G9E8S(@
M=DQO8V%L55X.PT*=F5C,B!T96UP.PT*#0II9B H*9!8W1396=M96YT26YD
M97A?;]C86P\,D@)[EMAIL PROTECTED]9!8W1396=M96YT26YD97A?;]C86P^,S$I*2 -
M@E[#0H)F5T=7)N(# N,#L-@E]0T*96QS90T*7L-@EV3[EMAIL PROTECTED]
M#UV3]C86Q55E]L;V-A;YX*VUO9AF06-T4V5G;65N=$EN95X7VQO8V%L
M+#0N,DJ9E-E9VUE;G17:61T:]F5VED=@[#0H)=DQO8V%L55X+GD]=DQO
M8V%L559?;]C86PN2MF;]OBAF06-T4V5G;65N=$EN95X7VQO8V%L+S0I
Re: [osg-users] FBO Rendering
Thanx
Now I try to use integer textures and bitwise operation for cellular automata I
think this reduce texture memory for textures but this trick only work on G80.
Roman
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of J.P. Delport
Sent: Tuesday, May 20, 2008 5:29 PM
To: OpenSceneGraph Users
Subject: Re: [osg-users] FBO Rendering
Hi Roman,
attached is an example I made that uses ping-pong rendering. It tries to
simulate the game of life, see e.g.
http://en.wikipedia.org/wiki/Conway's_Game_of_Life
Each iteration depends on the previous one.
I hope the code makes sense. At least the output looks pretty :)
regards
jp
Роман Григорьев wrote:
Sorry guys for my f**king outlook
Here is shaders and source u can take from 1-st message Roman
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of J.P. Delport
Sent: Tuesday, May 20, 2008 2:17 PM
To: OpenSceneGraph Users
Subject: Re: [osg-users] FBO Rendering
Hi,
sorry, I cannot read the attachments in your mail. I will try to make a
simple ping-pong example instead.
jp
Roman Grigoriev wrote:
Here is my shaders. It's shaders from my current version that do not use
MRT.
Source code you can take from my previous messageÎÅÉIf you want to have my
setup with FBO MRT just email me. ÎÅÉÎÅÉÎÅÉÎÅÉ-Original
Message-ÎÅÉFrom: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of J.P.
DelportÎÅÉSent: Tuesday, May 20, 2008 1:46 PMÎÅÉTo: OpenSceneGraph
UsersÎÅÉSubject: Re: [osg-users] FBO RenderingÎÅÉÎÅÉHi,ÎÅÉÎÅÉòÏÍÁÎ
çÒÉÇÏÒØÅ× wrote:ÎÅÉ Hi I try to implement cellular automata clouds on OSG
and have some problemÎÅÉ ÎÅÉ 1) I can't use (or don't know) ping-pong
rendering technique as ÎÅÉ described here
http://www.m3xbox.com/GPU_blog/?m=200712ÎÅÉ ÎÅÉ Because when I attach 2
textures to camera FBO in rendering loop camera ÎÅÉ render to 2 FBO but I
need to change dynamically which draw buffer I ÎÅÉ need to draw/
ÎÅÉÎÅÉCan
you not also pass the draw buffer as a uniform to the shader and ÎÅÉthen
use
that in glFragData[buffer] call? This can select which of two ÎÅÉtextures
to
render to.ÎÅÉÎÅÉ I've red about RenderStage but how to control it is
ÎÅÉ
unclear for me. I've make a workaround that create another camera that ÎÅÉ
render FBO texture to another FBO texture that can I attach in 1 stage ÎÅÉ
to calculate cellular automata.ÎÅÉÎÅÉIf you have the same shader code for
both cameras, I think you can get ÎÅÉaway with only a single camera and
multiple targets.ÎÅÉÎÅÉ ÎÅÉ 2) I'd like to do RTT rendering not in
every
frame. But As I understand ÎÅÉ OSG create rendercashe to strore rendering
order how can I dynamically ÎÅÉ attach and remove camera from rendering
order? ÎÅÉÎÅÉSwitching on and off could be done with Switch node or mask
as
Robert ÎÅÉsaid. Not sure about switching order dynamically, but I'm still
not
sure ÎÅÉyou need it.ÎÅÉÎÅÉ ÎÅÉ See my example. If anyone is interested
in my program I can share.ÎÅÉÎÅÉIf you could send me a simple version of
your shader I can have a look.ÎÅÉÎÅÉjpÎÅÉÎÅÉ ÎÅÉ Thanx in
advanceÎÅÉ
ÎÅÉ RomanÎÅÉ ÎÅÉ
ÎÅÉ
ÎÅÉ
ÎÅÉ ___ÎÅÉ osg-users mailing
listÎÅÉ osg-users@lists.openscenegraph.orgÎÅÉ
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.orgÎÅÉÎÅÉ--
ÎÅÉThis message is subject to the CSIR's copyright terms and conditions,
e-mail legal notice, and implemented Open Document Format (ODF) standard.
ÎÅÉThe full disclaimer details can be found at
http://www.csir.co.za/disclaimer.html.ÎÅÉÎÅÉThis message has been scanned
for viruses and dangerous content by MailScanner, ÎÅÉand is believed to be
clean. MailScanner thanks Transtec Computers for their
support.ÎÅÉÎÅÉ___ÎÅÉosg-users
mailing
list[EMAIL
PROTECTED]ÎÅÉhttp://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.orgÎÅÉ
begin 666 cell_fp.glsl
M#0HO*D9204=-14Y47U-([EMAIL PROTECTED]/+@(.[AZ^#W[[EMAIL PROTECTED]G5N
M:69OFT@V%MQEC)$($-E;Q?=5X.PT*+R_JX/#RX[EMAIL PROTECTED]
M;FEF;W)M('-A;7!L97(R1!.;[EMAIL PROTECTED]@\/+@(.[C\.#MZ/?H
MXN#^^7C[B#NX?KE[. -G5N:69OFT@V%MQEC)$($5L:7!S;VED7W1E
M#L-@T*=6YI9F]R;2!F;]A=!D=EM93L-@T*+R_QZ_/[EMAIL PROTECTED]SE
M^7MZ/[EMAIL PROTECTED]@[EMAIL
PROTECTED];FEF;W)M(9L;V%T(9.;VES94]F9G-E=$5X
[EMAIL PROTECTED];FEF;W)M(9L;V%T(9.;VES94]F9G-E=$5X=%D[#0IU;FEF;W)M
M(9L;V%T(9.;VES94]F9G-E=$AU;[EMAIL PROTECTED];FEF;W)M(9L;V%T(9.;VES
M94]F9G-E=$AU;5D[#0IU;FEF;W)M(9L;V%T(9.;[EMAIL PROTECTED]
M#0IU;FEF;W)M(9L;V%T(9.;VES94]F9G-E=$%C=%D[#0H-B\O\.#G[.7P
M^R#QZ^[_(.[AZ^#J[N(-G5N:69OFT@:6YT(9396=M96YT5VED=@[#0IU
M;FEF;W)M(EN=!F4V5G;65N=$AE:[EMAIL PROTECTED]B\O\.#G[.7P^R#JX/#R
M^R#NX[EMAIL PROTECTED];FEF;W)M(EN=!F5VED=@[#0IU;FEF;W)M(EN=!F
M25I9VAT.R -@T*+R_Q[.7YYWH_R#O[B#JX/#RY2
