Messages

1

Graphics / Re: SFML 2.1 FrameBufferObject alternative with postprocessing shader?

« on: September 15, 2014, 04:01:30 pm »

Hey guys, still here. Wondering if anyone could help me get this mother running.

I was literally typing this when I found out what I was doing wrong. Anyway, I was using Vertex Buffer Objects, some OpenGL functions and stuff, when I found out that window.draw() needs resetGLStates to work correctly after OpenGL calls. So that's what I added, and now it works!

                g_FBO.setActive(); // Have to do this or it complains about the VBOs
                IdleGL(); // Idle function of GL
                DisplayGL(); // Render function
                g_Window->resetGLStates(); // Reset GL states
                g_Window->draw(sf::Sprite(g_FBO.getTexture())); // Draw texture as sprite.
                g_Window->display(); // Display window

Also, I created the FBO with a depth texture of course!

2

Graphics / Re: Sprite properties turn into 'unable to read memory'

« on: September 11, 2014, 08:08:38 pm »

0x00000004 means that the address of the class you're using is probably 0x00000000. This means that you're using a pointer and that you forgot to initialise this!

Look where you're using the instance CEditBox, check if it is using -> and that new is added.

This is probably what you're dealing with

CEditBox *t_EditBox;
t_EditBox->DoSomethingWithText();

This is what it needs to become

CEditBox *t_EditBox = new CEditBox();
t_EditBox->DoSomethingWithText();

//.. And when you're done using this editbox..
delete t_EditBox;

Or simply:

CEditBox t_EditBox = CEditBox();
t_EditBox.DoSomethingWithText();

Then deleting will be handled for you when you leave the scope

3

Graphics / Re: SFML 2.1 FrameBufferObject alternative with postprocessing shader?

« on: September 11, 2014, 04:18:58 pm »

Ah, that did it! Now to figure out if it actually renders.. Getting a completely white screen.

4

Graphics / Re: SFML 2.1 FrameBufferObject alternative with postprocessing shader?

« on: September 11, 2014, 01:15:08 pm »

Your edit gave me this error, which is the same for my code.

error C2664: 'void sf::RenderTarget::draw(const sf::Vertex *,unsigned int,sf::PrimitiveType,const sf::RenderStates &)' : cannot convert argument 2 from 'sf::Shader' to 'const sf::RenderStates &'
1>          Reason: cannot convert from 'sf::Shader' to 'const sf::RenderStates'

It's basically the example that I gave that doesn't work, there's little to no difference between

window.draw(sf::Sprite(m_FBO.getTexture()), m_ScreenShader);

and

sf::Sprite sprite(m_FBO.getTexture());
window.draw(sprite, m_ScreenShader);

Currently I am trying other stuff out, this seems to look like what I need, but need to test it out if it truly renders to m_FBO before m_FBO.display();. Haven't created any test objects.

void Application::Render()
{
        m_FBO.display();
        m_ScreenShader.setParameter("m_Texture", m_Texture);
        sf::Shader::bind(&m_ScreenShader);
        draw(sf::Sprite(m_FBO.getTexture()));

        display();     
        sf::Shader::bind(0);
}

5

Graphics / SFML 2.1 FrameBufferObject alternative with postprocessing shader?

« on: September 11, 2014, 11:51:45 am »

Hey guys, does anyone have an example of a shader attached to the RenderTexture?

In the shader tutorial it says you can simply do

window.draw(sf::Sprite(m_FBO.getTexture()), m_ScreenShader);

But it's not in the API documentation, nor can I use it this way. I am new to SFML, so help would be awesome