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Today, 03:19 AM

HasasnChr started a thread Need Help In Modifiying My Code OPENGL in OpenGL coding: beginners

i have this code of a colored cube in openGL however i want to make it a 3d cube and i want to rotate it , can anyone help me with coding ( AS IN...

0 replies | 4 view(s)

Today, 03:10 AM

thomas.d replied to a thread Work groups with priorities in Suggestions for the next release of OpenGL

An alternative (probably easier to implement -- but not what I would prefer, since it would require shared contexts, extra synchronization, more...

1 replies | 111 view(s)

Today, 03:03 AM

viveksrivastava replied to a thread 2D rotation in OpenGL coding: beginners

void make_scene() { init(); glRotatef(scene_zangel,0.0,0.0,1.0); glRotatef(scene_xangel,1.0,0.0,0.0);...

2 replies | 159 view(s)

Today, 02:36 AM

viveksrivastava replied to a thread OpenGL rotation function? in OpenGL coding: beginners

void rotation_inbuilt() { printf("My rotation value of thetax thetay thetaz:- %f\t,%f\t,%f\t",theta_x,theta_y,theta_z); ...

3 replies | 44 view(s)

Today, 02:28 AM

viveksrivastava replied to a thread orientation and rotation in OpenGL coding: beginners

Thanks :o , "You can represent rotations and orientations with the same mathematical constructs (ie: matrices and quaternions)" Tell me basic...

3 replies | 101 view(s)

Today, 01:31 AM

tonyo_au replied to a thread Nvidia 319/320 drivers and shared layout UBOs in OpenGL drivers

Why do you need to query locations in a std140 buffer. They are at known offsets from the start of the buffer or am I misunderstanding something.

3 replies | 117 view(s)

Today, 01:22 AM

tonyo_au replied to a thread Issue compiling OpenGL program that uses GLEW in OpenGL under Windows

You have not included the glew library in your link

1 replies | 96 view(s)

Today, 01:19 AM

tonyo_au replied to a thread OpenGL rotation function? in OpenGL coding: beginners

rotated_vector = rotation_matrix *original_vector Use this for glm with opengl

3 replies | 44 view(s)

Today, 01:16 AM

tonyo_au replied to a thread problem with glBufferData in OpenGL coding: beginners

check for an opengl error prior to this code with glGetError();

1 replies | 28 view(s)

Today, 01:08 AM

tonyo_au replied to a thread Contouring in OpenGL in OpenGL coding: beginners

I brute force mine. Look at the triangle, see what contours cross it, save them - now I have poly lines and I can label along the length of the poly...

5 replies | 251 view(s)

Yesterday, 11:58 PM

bug343 replied to a thread OpenGL rotation function? in OpenGL coding: beginners

The GLMath (glm) libraries have functions to generate a rotation transformation matrix. These functions have been written by many people for...

3 replies | 44 view(s)

Yesterday, 10:49 PM

bug343 started a thread OpenGL red book 4.3 or SuperBIble 4.3? in OpenGL coding: beginners

Which book do you recommend for a beginner? I heard from another friend who is a beginner that the red book 4.3 does not do a fine job of explaining...

0 replies | 29 view(s)

Yesterday, 10:39 PM

bug343 started a thread problem with glBufferData in OpenGL coding: beginners

I am writing a hello world that draws a simple triangle and trying out VAO. GLuint vbo; GLuint vao; .....

1 replies | 28 view(s)

Yesterday, 08:19 PM

Quantumcat started a thread OpenGL rotation function? in OpenGL coding: beginners

I have some objects with vectors of positions. I have been successful getting them to sit on the floor by calculating their centre, and translating...

3 replies | 44 view(s)

Yesterday, 07:02 PM

fakhir started a thread GL ES: Fragment shader optimization in OpenGL Shading Language

Summary: I get FPS slowdown as soon as I try to tint the sprites (i.e: multiply texture with color in the fragment shader) Details: Hardware:...

0 replies | 61 view(s)

Yesterday, 04:37 PM

The Little Body replied to a thread Smoothing the dges of a polygon in Math and Algorithms

Something like this http://www.opengl.org/discussion_boards/showthread.php/131788-How-to-draw-a-bezier-curve-through-its-control-points ?

1 replies | 138 view(s)

Yesterday, 11:13 AM

raluk22 replied to a thread Working with glFrustum and gluLookAt in OpenGL coding: beginners

Thanks a lot :) so this is the whole thing: The projection() function is where I make the transformation, in Display() case 'p' is where I call...

2 replies | 78 view(s)

Yesterday, 10:59 AM

uwi2k2 replied to a thread Working with glFrustum and gluLookAt in OpenGL coding: beginners

hi, if the rest of the code is no big secret pls post it. so i can copy it - modefy it - and post it back .. thats mutch easyer than anything...

2 replies | 78 view(s)

Yesterday, 10:54 AM

uwi2k2 replied to a thread Falling objects game in OpenGL coding: beginners

hi, without some code of yours we can´t help you. anyway you need a GameLoop that is running over and over again. cu uwi

1 replies | 118 view(s)

Yesterday, 10:38 AM

raluk22 started a thread Working with glFrustum and gluLookAt in OpenGL coding: beginners

Hello everybody! I just started working with OpenGL and I have this problem with glFrustum and gluLookAt. I have to obtain the first image but the...

2 replies | 78 view(s)

Yesterday, 08:32 AM

kaberdock replied to a thread DepthMap with glreadPixels in OpenGL coding: beginners

I found the problem, is the data type of the mat that I was saving the image. Sorry for the post

2 replies | 71 view(s)

Yesterday, 08:22 AM

kaberdock replied to a thread DepthMap with glreadPixels in OpenGL coding: beginners

this is the image: imageshack.us/a/img267/2125/depthmap.png

2 replies | 71 view(s)

Yesterday, 08:20 AM

kaberdock started a thread DepthMap with glreadPixels in OpenGL coding: beginners

Hello everyone, I'm trying to get a depthmap of the scene using glreadpixels, mi command is it: glReadPixels(0, 0, img.cols, img.rows,...

2 replies | 71 view(s)

Yesterday, 06:01 AM

thokra replied to a thread write data to arbitrary position in OpenGL Shading Language

Have fun with interreflections. ;)

3 replies | 187 view(s)

Yesterday, 05:22 AM

beorht replied to a thread write data to arbitrary position in OpenGL Shading Language

Thanks for your quick and detailed reply, i will take a look at shader image load/store and opencl you mentioned My major concern is portability and...

3 replies | 187 view(s)

Yesterday, 04:48 AM

cordura334 started a thread Falling objects game in OpenGL coding: beginners

hello everyone i am making a falling objects game for my semester project and i am facing a problem with the code. i can't create the objects...

1 replies | 118 view(s)

Yesterday, 04:37 AM

thokra replied to a thread Quality of Implementation: Debug shader variable locations in OpenGL drivers

The thing is, ouputting messages is costly as hell. :) And being able to have the GL report stuff on its own without querying with glGetError() is...

20 replies | 603 view(s)

Yesterday, 04:01 AM

thokra replied to a thread write data to arbitrary position in OpenGL Shading Language

Well, shader image load/store lets you read from and write to arbitrary positions of an image - however, you'll need not only GL4 capable hardware,...

3 replies | 187 view(s)

Yesterday, 03:17 AM

Nowhere-01 replied to a thread screen-space reflections in OpenGL coding: advanced

hey, thanks for sharing your code. i've already implemented SSR at this moment. it has some problems. but the one that bugs me the most is because of...

2 replies | 227 view(s)

Yesterday, 03:16 AM

Aleksandar replied to a thread Quality of Implementation: Debug shader variable locations in OpenGL drivers

Nope! Just said that blocking message output does not necessarily mean not collecting information. Of course it is highly appreciable to prevent...

20 replies | 603 view(s)

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