Irrlicht Engine

It's here but it isn't useful as an Irrlicht snippet. It has a lot of dependencies. However you can see how the points are stored and the bounds are accessed which might be useful. The code is part of a program for measuring locations on point cloud movies and I'll release it open source when it's f...

Well spotted - the debug code is more or less straight from CAnimatedMeshSceneNode. But actually that's what I want. The bounding box and normals are only there for debugging so performance isn't really an issue. Multiple calls of draw3DLine must be very slow! I guess if I wanted it faster I could d...

Here is a quick implementation of a custom scene node to render point clouds where each point has a colour and a normal. I use it for data generated using 3D photogrammetry (e.g. with VisualSFM). I feed the data in as a structure array (x,y,z),(a,r,g,b),(nx,ny,nz) but it would be easy to adapt. I ha...

There is a small bug in CIrrDeviceOSX.mm with an easy fix. If you compile without _IRR_COMPILE_WITH_JOYSTICK_EVENTS_ defined then the virtual keycodes are not defined because they are defined inside the joystick #ifdef block. However they are used in code elsewhere so they do need be defined. The fi...

Here is a quick patch to allow the 1.9 COBJMeshFileLoader.cpp to cope with bigger meshes. All it does is replace the SMeshBuffer with a 32 bit CDynamicMeshBuffer as used in some of the other asset loaders. There will be a small performance hit in this simple implementation because it doesn't check t...

Thanks for the tip. This code is probably a bit neater than the previous suggestion (as long as I've got the memory management right - my assumption is that once getTexture has happened, I don't need to maintain the memory block):   QFile file(":/images/Floor Textures/floor_checker_2.png")...

For those of us using Qt for our user interfaces it is nice to take advantage of the built in resource management system. This snippet shows how to load up an image from a resource and convert it into an Irrlicht texture. It's not especially neat and involves more copying than I would ideally like b...

I've played with this recently and it is actually pretty straightforward. The current Ogre3D approach is to base everything off a QWindow and use the Qt createWindowContainer() function if you want to put the window content in a widget. This is the approach shown in the Qt5 demo OpenGLWindow and jus...

I recently needed to use a big mesh loaded it into a CDynamicMeshBuffer with the EIT_32BIT setting. I thought the COctreeTriangleSelector ought to work OK but it actually doesn't cope with 32 bit indices - not a bug as such but not documented. I tracked the problem down and it isn't COctreeTriangleS...