OMG! I am confused :confused: Well, I did understand the first half. But how can I change the number of contour lines? Will Edge detection algorithm...

One more concern, i was using glVertexAttribP4uiv with GL_INT_2_10_10_10_REV. For signed data type, we have to use same API. So i was calling it with...

A relatively easy way is to write to a buffer the contour level of each pixel based on it's world height value as you render the terrain. Then do an...

It doesn't take an array. Well, it kind of does, but it's only an array with one unsigned integer element in length. Really, I have no idea why they...

Thanks a lot guys. I thought glVertexAttribP4ui works with buffer objects so i was passing it 0 as offset. I didn't understand 'y'. And when i...

Thanks! I will send you the pieces of code that matter the most.

Found the issue, topic can be deleted now, sorry for bothering you:)

You should move the buffer object binding call after the vao binding call i.e GLuint myvbo; glGenBuffers(1, &myvbo); //commented this to go...

glGetString(GL_VERSION) returns "2.1" and glGetString(GL_SHADING_LANGUAGE_VERSION) returns "1.20" This is what Apple's app, "OpenGL Driver...

thank you so much.:D I tried your code with an image and it worked. But I need to read a video stream frame by frame, process the frames ( eliminate...

Try to find out what driver version you have and change the version to match. Try glGetString(GL_VERSION) If you want or need to stay with version...

Well, it doesn't complain anymore :) But still, nothing shows up... I have never tried using shaders before, so I have no idea, where something...

hi, its hard to give you more hints without seeing the code. if you send me a priv-msg with the code i will change it for you so you see the...

Try changing "in" to "varying" and leave the version the same.

You need to describe a bit more. What sort of map - a terrain, a sensor value map, what are its coordinate system? What exactly is you OpenGL...

That didn't solve it. :( Now I get this error instead: "version '320' is not supported" The tutorial I'm reading uses version 1.50, but that does...

Edit: It doesn't seem to want me to add pictures, so if anyone could help me out with that, that would be great.

This is not a C++ forum; this is an OpenGL forum. Your questions show that you don't understand the language very well. So please go back to learning...

Wow, there is not even a single reply for this? Anyway, to clarify the problem, I have a position sensor by which x, y, and z are provided. The 2D...

You have set your version as 1.2 before "in" was valid. Change your version to 320

When I try using glimg::Dimensions dims = ImageSet->glimg::ImageSet::GetDimensions(); after I have loaded the image into an image set and...

Was, past tense. 1) I debugged, submitted patches, or otherwise precipitated them fixing things. 2) I found out they are a strictly hobbyist...

I find it odd that you are having trouble with building ClanLib on Linux. ClanLib started off being Linux only. In its beginnings it was mostly a...

Thank you for your response! I was using glFrustum(-320,320,-(WHEIGHT/2),WHEIGHT/2,-1000,1000);, but nothing was rendering. Using the glGetError()...