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The best demo I've seen and with source code

Posted Saturday, 19 March, 2011 - 00:41 by migueltk

Hi, ...
I want to share with all of this demo, GLSLDemo awesome! and also the author provides the source code. It uses OpenGL, I have not compiled the project but hope to soon.
Adapt this project to OpenTK would be a good showcase of the possibilities of OpenTK.

Ah! and do not forget to put the 3D glasses.

P.D: How I can insert a frame of video in this post?


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flopoloco's picture

Re: The best demo I've seen and with source code

Posted Tuesday, 22 March, 2011 - 22:56 by flopoloco

Really cool demo.

iframe tag does not work about video embed...

migueltk's picture

Re: The best demo I've seen and with source code

Posted Wednesday, 23 March, 2011 - 08:15 by migueltk

I would like to add a video and here, as I can do this.

ATI video cards there is any error in the shaders and start the demo the screen is black, you should press the A button to switch to 3D view and see the demo.

migueltk's picture

Re: The best demo I've seen and with source code

Posted Wednesday, 23 March, 2011 - 08:18 by migueltk

I would like to add a video as it is here http://www.opentk.com/project/labyrinth, as I can do this .
ATI video cards there is any error in the shaders and start the demo the screen is black, you should press the A button to switch to 3D view and see the demo.

the Fiddler's picture

Re: The best demo I've seen and with source code

Posted Wednesday, 23 March, 2011 - 20:59 by the Fiddler

Iframes may cause security issues, thus can only be used by privileged users.

Cool demo, btw!

migueltk's picture

Re: The best demo I've seen and with source code

Posted Thursday, 24 March, 2011 - 08:48 by migueltk

I understand, I hope that in future all can embed videos.

I modified the shaders "reflection_refraction_perpixel3.frag" and "postfx.frag"for the demo work on ATI graphics cards.

In a file "reflection_refraction_perpixel3.frag" to modify the code line 42:
Original code:
normal_final_view +=  bumpmapping_factor*(2.0 * texture2D(texNormalMap, gl_TexCoord[0].st) - 1.0);      // DOT3 bump mapping

Modified code:
normal_final_view += vec3(bumpmapping_factor*(2.0 * texture2D(texNormalMap, gl_TexCoord[0].st) - 1.0)); // DOT3 bump mapping

In a file "postfx.frag" to modify the code line 29:
Original code:
return colorIn.r * 0.299 + colorIn.g * 0.587 + colorIn.b * 0.114;

Modified code:
return vec4(colorIn.r * 0.299 + colorIn.g * 0.587 + colorIn.b * 0.114);

Toanso's picture

Re: The best demo I've seen and with source code

Posted Thursday, 7 April, 2011 - 04:58 by Toanso
migueltk wrote:

Hi, ...
I want to share with all of this demo, GLSLDemo awesome! and also the author provides the source code. It uses OpenGL, I have not compiled the project but hope to soon.
Adapt this project to OpenTK would be a good showcase of the possibilities of OpenTK.

Ah! and do not forget to put the 3D glasses.

P.D: How I can insert a frame of video in this post?

sorry~~ where can i find the source code?

migueltk's picture

Re: The best demo I've seen and with source code

Posted Thursday, 7 April, 2011 - 07:48 by migueltk

You must display the imformation box of the video "to see complete description " and follow the links ...

Anyway below are the links.

More info (french) : http://yannick.gerometta.free.fr/base.php?id=glsldemo
Executable : http://yannick.gerometta.free.fr/files/GLSLDemo_win32_v1.0.zip
Source : http://yannick.gerometta.free.fr/files/GLSLDemo_src_v1.0.zip

Toanso's picture

Re: The best demo I've seen and with source code

Posted Friday, 8 April, 2011 - 04:56 by Toanso

Thanks a lot, it' very cool, but i also have not compiled it successfully.
There are something wrong when initlizes the SceenManager 

void SceneManager::Init()
{
for(std::map<std::string, SceneBase*>::iterator it = m_SceneDB.begin(); it != m_SceneDB.end(); it++)
		(*it).second->Init();
}

did you meet this problem??

migueltk's picture

Re: The best demo I've seen and with source code

Posted Friday, 8 April, 2011 - 15:19 by migueltk

Try it with the source code I've used.

GLSL Demo

the Fiddler's picture

Re: The best demo I've seen and with source code

Posted Friday, 8 April, 2011 - 16:16 by the Fiddler

If it still won't work, post the compiler errors so we can see what might be the issue.

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