Messages

1

Graphics / Re: Squares when drawing SFML graphics with OpenGL

« on: October 23, 2014, 05:05:10 pm »

Sorry, but I manged to fix it. My texture states were a bit jumbled up, so changing it to
glActiveTexture(GL_TEXTURE0);
made it work fine.

Thanks anyway. No need to keep this thread open.

2

Graphics / Re: Squares when drawing SFML graphics with OpenGL

« on: October 23, 2014, 05:02:01 pm »

I'm more comfortable using OpenGL for most purposes. I used two FBOs before, and it worked just fine. Now I'm using three, though it started glitching before that.

3

Graphics / Squares when drawing SFML graphics with OpenGL

« on: October 23, 2014, 04:54:37 pm »

I'm trying to draw a texture and a string after rendering the OpenGL stuff. It worked fine before and then it suddenly started glitching at one point. I use FBOs for post-processing, so the final step is just rendering an FBO texture on screen. I don't see what the problem could be here, any lingering OpenGL states that aren't pushed?

This is the code I'm testing with:

sf::RenderWindow window(sf::VideoMode(WIDTH, HEIGHT, 32),
              "Game", sf::Style::Titlebar | sf::Style::Close, sf::ContextSettings(32)
               );

...

glUseProgram(0);
glBindVertexArray(0);
glActiveTexture(0);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindTexture(GL_TEXTURE_2D, 0);

window.pushGLStates();

sf::Sprite spr;
spr.setPosition(sf::Vector2f(10.f, 10.f));
spr.setScale(sf::Vector2f(2.f, 2.f));
spr.setTexture(TEX[3]);
text.setString("test string 1");
text.setPosition(sf::Vector2f(10.f, 10.f));
window.draw(spr);
window.draw(text);

window.popGLStates();
window.display();
 

And this is what I get:



Thanks.

4

Graphics / Trouble with render texture and OpenGL

« on: September 24, 2014, 05:29:15 pm »

Hi. I'm trying to implement an in-game camera similar to Fatal Frame. What I figured out is first drawing the scene in front of the camera, and then the scene the player actually sees.

I have a render texture that everything is drawn to, which I use for post-processing. What I do is copy the texture data from it to a regular sf::texture right after rendering the camera scene, and then I use that sf::texture as the camera screen for this sort of effect. http://i.imgur.com/1pvB9Tp.gif

Anyway, copying the texture data of the render texture really slows everything down. If I disable it, the FPS jumps from ~200 to ~1500. I tried simply using the render texture itself as a camera screen, which just leads to artifacts. http://i.imgur.com/4yy54h5.png
Is there a better way to do this?

Thanks

EDIT: Never mind, I'll just use multiple FBOs for it. Solved.