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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 | 72 view(s)

Today, 04:42 AM

sam_thedancer started a thread GLM perspective in OpenGL coding: beginners

Greetings: I see that float aspect = 1.0; projMat = glm::perspective(60.0, aspect, 1.0, 50.0); gives an error in Win7/MS VS 2010 and...

2 replies | 53 view(s)

Today, 05:01 AM

Alfonse Reinheart started a thread Is the bug database a circular file or is it used? in Items of Importance to the OpenGL Community

I would like some confirmation on this from an official source. The OpenGL bug database appears, from all visual evidence, to be nothing more than...

1 replies | 55 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 | 41 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 | 69 view(s)

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 | 48 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 | 40 view(s)

Today, 09:57 AM

bmcclint_gl started a thread OpenGL porting to Java(JOGL) and Array References... in OpenGL coding: beginners

OK…so I ‘m attempting to learn Java and porting some C++/C# code to Java to start to learn JOGL. I have libraries built for all my objects and types...

0 replies | 19 view(s)

Today, 10:42 AM

boingx started a thread Explanation for Algorithm used in OpenGL coding: beginners

hello guys :D this is my first post since im new to this forums. i have this program source whose algorithm im not able to understand; like how...

0 replies | 16 view(s)

Today, 11:48 AM

dexter86 started a thread How to find out, how many tiles ca be rendered on the screen. in OpenGL coding: beginners

I have Plane made of tiles in opengl. I start drawing them at (0, 0, -20) after that i do my translations so that the view is rotated somewhat...

0 replies | 2 view(s)

Today, 11:33 AM

Mars_999 started a thread Amd have bindless texture support? in OpenGL drivers

Nvidia has bindless texture support on 600 and 700 series. Does amd have this yet? Or plan on supporting it.

0 replies | 2 view(s)

Today, 11:38 AM

Graham Sellers replied to a thread Is the bug database a circular file or is it used? in Items of Importance to the OpenGL Community

The bug database does get looked at and cleaned up periodically, although I'll admit there does seem to be a long string of unresolved issues. Most...

1 replies | 55 view(s)

Today, 10:10 AM

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

I like Alfonse's suggestion, the idea that the uniform locations that are not explicitly assigned are slightly randomized is a very, very good idea....

21 replies | 615 view(s)

Today, 08:20 AM

MilesAway1980 replied to a thread Issue compiling OpenGL program that uses GLEW in OpenGL under Windows

Thanks for the reply. I missed including the glew32 library in the linker and added it. However, it only decreased the number of errors from 9 to...

2 replies | 116 view(s)

Today, 07:47 AM

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

My main concern was with shared uniform blocks; std140 just happened to demonstrate this behaviour as well. Since more program information is being...

5 replies | 161 view(s)

Today, 07:19 AM

thokra replied to a thread GLM perspective in OpenGL coding: beginners

So those :p in your text? Wonder why that is? Please put code in code segments and read the forum posting guidelines. Thank you. BTW, this is a C++...

2 replies | 53 view(s)

Today, 07:16 AM

carsten neumann replied to a thread GLM perspective in OpenGL coding: beginners

You are using double literals (60.0 is a double, 60.0f is a float), together with the way template argument deduction works, you get the error when...

2 replies | 53 view(s)

Today, 04:54 AM

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

I've looked at the spec, and it seems clear that the shared notion is not defined in terms of active uniforms. So the uniforms in a shared or std140...

5 replies | 161 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 | 135 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 | 173 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 | 72 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 | 112 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.

5 replies | 161 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

2 replies | 116 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 | 72 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 | 41 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 | 263 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 | 72 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 | 146 view(s)

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