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Yesterday, 11:07 PM

openlearner started a thread Can a quaternion represent more than 360 degrees of rotation? in OpenGL coding: beginners

I like Euler rotation based on degrees so I can keyframe an animation of a large number of degrees, like 1000, and get multiple full 360-degree...

6 replies | 101 view(s)

Yesterday, 12:43 PM

Alphaomega86 started a thread Multiple Post Processing - FBO Bug? in OpenGL coding: beginners

Hallo I implemented a multiple post processing shader support for my game, but now, i have the following bug: When i use and render my post...

3 replies | 138 view(s)

Yesterday, 07:42 PM

jonatascb started a thread Bump mapping in fragment shader in OpenGL coding: beginners

Hello, I'm learning about bump mapping and I've made this code in a DOJO class: uniform sampler2D sampler2d0; uniform sampler2D sampler2d1;...

1 replies | 84 view(s)

Yesterday, 12:57 PM

jenny_wui started a thread Smoothing the dges of a polygon in Math and Algorithms

Hello every body, I have a polygon consisting of 26 points as shown in the figure. i would just like to smoothen the edges. Could you suggest me some...

0 replies | 75 view(s)

Yesterday, 11:59 PM

SasMaster started a thread Fail to load DDS with NV_DDS utility under linux in OpenGL on Linux

Hi All. I posted this question on SO but got no answer so I am asking it here.Hopefully someone can shed some light.I am using nvidia DDS load...

0 replies | 71 view(s)

Today, 05:20 AM

rondarca95 started a thread Christian Louboutin Shoes 5y in User Hardware, Software, & Gaming Help

Everything hecould raise or borrow is on the horse- and at fine odds "It really is Having spoken to her,without receiving an answer,she brought...

0 replies | 24 view(s)

Today, 07:36 AM

nsunyer started a thread Bindless Textures + Instancing in OpenGL coding: advanced

I would like to render instanced geometry with a per-instance texture. To do so, I want to create a Vertex Attrib (that is consumed in a...

0 replies | 6 view(s)

Today, 07:58 AM

openlearner replied to a thread Can a quaternion represent more than 360 degrees of rotation? in OpenGL coding: beginners

Ah I see what you're saying, thanks.

6 replies | 101 view(s)

Today, 07:04 AM

Alfonse Reinheart replied to a thread Can a quaternion represent more than 360 degrees of rotation? in OpenGL coding: beginners

... 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. ...

6 replies | 101 view(s)

Today, 06:36 AM

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

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

9 replies | 278 view(s)

Today, 06:19 AM

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

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

9 replies | 278 view(s)

Today, 05:56 AM

Alphaomega86 replied to a thread Bump mapping in fragment shader in OpenGL coding: beginners

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

1 replies | 84 view(s)

Today, 02:55 AM

Alphaomega86 replied to a thread Multiple Post Processing - FBO Bug? in OpenGL coding: beginners

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,...

3 replies | 138 view(s)

Today, 02:55 AM

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

Totally agree. This has bugged me for years.

9 replies | 278 view(s)

Today, 02:22 AM

openlearner replied to a thread Can a quaternion represent more than 360 degrees of rotation? in OpenGL coding: beginners

Why is this "wrong" to rotate an object 6 degrees each keyframe? It looks fine and works well.

6 replies | 101 view(s)

Today, 02:08 AM

Alphaomega86 replied to a thread Multiple Post Processing - FBO Bug? in OpenGL coding: beginners

This was not the problem as i tried. You're right, i read and write the same texture! This might be the problem. But, why do i need to swap...

3 replies | 138 view(s)

Today, 01:00 AM

RigidBody replied to a thread How do I compile a .c file that uses glm.h? ["undefined references"] in OpenGL Toolkits (e.g. GLUT, GLFW, GLM)

glm.h is the header file of the library. somewhere in your system, probably in /usr/lib, there has to be something like libglm.so or similar, which...

1 replies | 118 view(s)

Today, 12:00 AM

Alfonse Reinheart replied to a thread Can a quaternion represent more than 360 degrees of rotation? in OpenGL coding: beginners

You're simply doing it the wrong way. If you have a single animation that lasts 10 seconds and during that time, you have a 5 360 degree revolutions,...

6 replies | 101 view(s)

Yesterday, 11:52 PM

openlearner replied to a thread Can a quaternion represent more than 360 degrees of rotation? in OpenGL coding: beginners

Sorry, you misunderstand. I can set a single animation to last, say, 10 seconds, and in that 10 seconds I get 5 full revolutions, or 360*5 degrees....

6 replies | 101 view(s)

Yesterday, 11:24 PM

Alfonse Reinheart replied to a thread Can a quaternion represent more than 360 degrees of rotation? in OpenGL coding: beginners

Why do you need keyframes far enough apart that this is necessary? Generally speaking, keyframes should only be at most 1/10th of a frame apart. You...

6 replies | 101 view(s)

Yesterday, 01:30 PM

carsten neumann replied to a thread Multiple Post Processing - FBO Bug? in OpenGL coding: beginners

GL11.glDrawBuffer(GL11.GL_NONE); GL30.glBindFramebuffer(GL30.GL_FRAMEBUFFER, fbo); usePostProcessingTexture(renderer.getSceneTexture(0)); ...

3 replies | 138 view(s)

Yesterday, 12:36 PM

jenny_wui replied to a thread Finding the convex hull of a set of points in Math and Algorithms

Thanks, a nice implementation has been given to the following link:...

4 replies | 210 view(s)

Yesterday, 12:25 PM

Khronos_webmaster replied to a thread A problem in import 3ds file in OpenGL under Windows

You'll get a faster answer if you read through our Posting Guidelines and rules.

1 replies | 84 view(s)

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