Who cares? I mean, it's nice to know but, like Alfonse said, debug-contexts are for finding bugs and are not intended for production code.

hi, i guess you need to give a bit more information. But what i can say .. you may rotate in you 3D world, to get a final oriantation... ...

No, that didn't make any difference :(

Your discussion led me to an interesting experiment. If you don't mind, I would hijack your thread for the short survey on debug-context performance....

Lots of thanks, it worked! Just one note: Since we send our data to the fragment shader through the vertex shader, we also need to add the...

thanks i am yet at sourceforge but theres no links allowed here below 5 messages for new members

hi, i guess almost everybody makes this mistake at least once in the fragment shader .. :-) you are adding 5*2 values that you took from the...

Also, the texture is up-side down...

Type-o -- I mean to say shared/std140. The uniform block size is constant for shared regardless of which uniforms were used in the shader and the...

This statement is true if you replace the words everything after "it" with "is in violation of the specification." This is a driver bug. No...

Yes, that is what we're talking about: using debug contexts to help find bugs in your code. Welcome to the conversation; glad you could make it. ...

Thanks. I will try to follow this example to refactor my code.

I'm glad you are answering your own questions. :) When I said slots, I meant entries in an array (or table). Remember, also, that hash tables...

OK, for the moment, let's ignore the possibility of explicit uniform location and assume that the compiler has carte blanc to assign uniform...

Of course they don't work. `glVertexAttribPointer` can only feed floating-point attributes. Thus, whatever type you pass will be converted into a...

This doesn't make sense. Uniform locations are assigned at link time, so this is a link-time-only issue. There are no performance implications at...

Since you want the vertex attribute to be an integer in the shader you'll want glVertexAttribIPointer (notice the "I"). On a quick glance the...

Ah I see what you're saying, thanks.

... What are you talking about? I was the one who suggested that you rotate it 6 degrees every 1/30th of a second. I didn't say that it was wrong. ...

I ran into this numerous times, albeit during some rapid prototyping which resulted in code which should never make anywhere else - and it worked...

Interestingly, I have never had such problem. Maybe because I'm using object-wrapper which fetches uniform location in the initialization function,...

This example uses vertex and fragment shader: http://fabiensanglard.net/bumpMapping/index.php

I got it :) I did not even have to swap between two textures. I just copy the screen to the scene texture. filters.get(i).filter(scene,...