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Type: Posts; User: Vylsain

1. ## Thread: Nearest-Depth Upsampling

by Vylsain
Replies
0
Views
339

### Nearest-Depth Upsampling

Hello everyone.

I'm looking for ways to optimize my particle rendering system.
I implemented low resolution off screen particles explained in this article :
...
2. ## Thread: Draw a portion of a transform feedback buffer

by Vylsain
Replies
4
Views
927

### Ok ! The way I implemented it now seems...

Ok !

The way I implemented it now seems appropriate.

Thank you Dark Photon. ;)
3. ## Thread: Draw a portion of a transform feedback buffer

by Vylsain
Replies
4
Views
927

### I think I know where my problem is coming from. ...

I think I know where my problem is coming from.

I implemented TF following that tutorial : http://ogldev.atspace.co.uk/www/tutorial28/tutorial28.html

In this example, glDrawArrays is called...
4. ## Thread: Draw a portion of a transform feedback buffer

by Vylsain
Replies
4
Views
927

### Draw a portion of a transform feedback buffer

Hello everyone.

I am using TF buffers to render precipitations.
I'd like to render more or less particles depending on precipitations intensity.

What is the best way to do that ?

Thank you.
5. ## Thread: Off screen particles rendering problems

by Vylsain
Replies
0
Views
429

### Off screen particles rendering problems

Hi everyone.

I faced a fillrate bottleneck in my terrain rendering engine when I began to render weather effects and especially when flying through clouds.

Then, I've implemented the technique...
6. ## Thread: Ground fog algorithm

by Vylsain
Replies
5
Views
1,832

### That's it ! That halfspace fog method works...

That's it !

That halfspace fog method works perfectly ! I had some mathematical problems to solve because my terrain is based on an ellipsoid.
The result is exactly what I was looking for : a...
7. ## Thread: Ground fog algorithm

by Vylsain
Replies
5
Views
1,832

### Hehe ! Terrain and weather rendering is a really...

Hehe ! Terrain and weather rendering is a really interesting subject.

Your fog effect is looking really good. It's a good simplification if you're looking for a layered fog that will only be seen...
8. ## Thread: Ground fog algorithm

by Vylsain
Replies
5
Views
1,832

### Thank you Brokenmind and sorry for the delay,...

Thank you Brokenmind and sorry for the delay, thought nobody had an answer.

I don't understand why b dissappears from the denominator since it is the result of the integration of exp(-b*Ky*t) from...
9. ## Thread: Ground fog algorithm

by Vylsain
Replies
5
Views
1,832

### Ground fog algorithm

Hello everyone.

I'm trying to implement a ground fog shader for my terrain rendering engine.
The technique is described in this article : http://www.iquilezles.org/www/articles/fog/fog.htm

The...
10. ## Thread: Sharing contexts with GLX for multithreaded app

by Vylsain
Replies
2
Views
881

### Oh ok. That's the first time I use theads and...

Oh ok. That's the first time I use theads and even though that's completely logical and the first thing to check, I missed that ! :whistle:

Thank you for your help mbentrup ! :)
11. ## Thread: Sharing contexts with GLX for multithreaded app

by Vylsain
Replies
2
Views
881

### Sharing contexts with GLX for multithreaded app

Hello everyone.

I'm programming a flight simulator app and I have data for the whole world.
Then, there is a lot of textures and geometry to load so I made a background thread that dynamically...
12. ## Thread: Send a texture buffer to a shader

by Vylsain
Replies
4
Views
1,749

### Yes you are right. I've been trying to use...

Yes you are right.

I've been trying to use that technique but I don't even understand how it works...

I'm very sorry that you lose your time.

Thank you.
13. ## Thread: Send a texture buffer to a shader

by Vylsain
Replies
4
Views
1,749

### Thank you for your answer Alfonse. I ) THE...

I ) THE BUFFER OBJECT

In fact, i tried the proper way before but without success. I was doing this :

glBindBuffer(GL_TEXTURE_BUFFER, m_bufferId);
...
14. ## Thread: Send a texture buffer to a shader

by Vylsain
Replies
4
Views
1,749

### Send a texture buffer to a shader

Hello everyone.

I'm trying to send a texture buffer to my fragment shader. This texture buffer contains the coordinates of control points to make a Bézier interpolation in my shader.
These...
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