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I'm trying to do simple mesh viewer using OpenSceneGraph and I want to use Conan for dependencies. The compilation is working well in both debug and release mode (I'm compiling on Windows for now with msvc toolchain).

As soon as I try to load any kind of mesh, the osgDB::readNodeFiles just fail. Looks like the plugin are not linked to the final binary. I checked in the Conan's package, the plugin list of .lib exists and are supposed to be linked I guess. What could I miss ?

There is my conanfile.txt :

I'd like to show my Qt Quick content on a virtual screen inside my OpenSceneGraph scene.

The approach I'm using right now is highly inefficient:

1. Render Qt Quick to the offscreen surface using FBO (FrameBufferObject)
2. Download pixels with QOpenGLFramebufferObject::toImage()
3. Upload pixels to the OSG

So it's GPU-CPU-GPU transfer. Source code

A proper solution should somehow utilize existing FBO and be able to transfer data solely inside the GPU.

There are two options exist:

1. Create FBO on the Qt side and use its texture on the OSG side
2. Create FBO on the OSG side and feed it to the Qt Quick renderer

The Qt part is OK. And I'm completely lost with the OSG. Could anyone provide me with some pointers?

I have the following directory structure:

My goal is to "multiplicate" two OSG::Textures, where one is a Light-Distribution (RGBA picture) the other a black and white filter Image/Texture, that I generate myself. For now both Textures have the same size, even though it would be nice, if its possible that they don't. You can imagine, that I'm trying to remove the black areas on the filter texture from the light texture.

Currently my code works as far as making the whole screen one color, no matter what. I think that something around the gl_MultiTexCoord0 or gl_TexCoord[0] is not correct. I had a look at multiple online sources, but could not get anything else to work.

Sadly I have to use an old version of glew (2.1.0) [-> ? OpenGL #version 120] and OSG (3.0.1) due to framework restrictions.

Because nothing is working correctly, I'll try for now just to show the filterTexture (because if I show the lightTexture, everything is black)... Inside init and update I have multiple "checkError" in place, to see whats going on, but atm there are no errors. Here are my shaders:

I'm tring to test a component class, but, my test won't work.

This is the part of stack error:

From the pymunk examples I've seen that there's a difference between the pymunk coordinates and pygame coordinates. Also, that pymunk is meant just for the 2D physics, while pygame is for rendering objects/sprites on the screen.

So when searching for how to build an environment where the camera follows the player, people (including me) end up getting confused. I've seen the examples here, here, here and here (even surprised that nobody answered this), but given the number of questions related to the same topic being asked repeatedly, I honestly feel the answers do not adequately explain the concept and request that the simplest possible example be shown to the community, where all the code is explained with comments.

I've worked in 3D environments like OGRE and OSG where the camera was a proper concept that could be defined with a view frustum, but I'm surprised the 2D world does not have a pre-defined function for it. So:

If not in the official tutorials of pymunk or pygame, at least could a simple example be provided (with a pymunk body as the player and few pymunk bodies in the world) as an answer here, where a player moves around in a 2D pymunk+pygame world and the camera follows the player?

I'm a newbie on OpenSceneGraph and 3D development.

I have a dxf file that contains a bunch of 3DPOLYLINES (with different colors). So far I have been able to read and display them on a viewer, but I haven been able to change the color of the rendered lines. I believe that I'm not understanding properly the graph relationships.

I'm modifying this example and using the "Quick Start Guide" as reference.

A code snippet of what I have:

When installing Sumo-0.30.0 on Ubuntu 16.04, make resulted in the following error:

I am using a nested Case in my code. There are two variables to check, "src" and "dis"

The first case checks whether the src is within a list