Irrlicht Engine

I wrote something similar long time ago, these may be of some help:

To rotate / revolve node in world space & in local space:
http://irrlicht.sourceforge.net/forum/v ... =9&t=47924
Look at rotateNodeInLocalSpace() or revolveNodeInLocalSpace()

Regards,
smso

user
lolgamegd01
is a spammer

See:
http://irrlicht.sourceforge.net/forum/v ... =7&t=49811

Regards,
smso

The following code fragments maybe helpful: using namespace irr;   core::array<video::S3DVertex> Vertices; core::array<u16> Indices;   void setupPixmapQuad() {     Vertices.set_used(4);       //S3DVertex => pos, normal, color, texcoords     video::SColor color(128, 255, 255, 255);     Vertices[0] = ...

See my code snippet to create a frustrum mesh:

http://irrlicht.sourceforge.net/forum/v ... =9&t=45413

Regards,
smso

I used the transformed bounding box for finding the y-offset to prevent the character from walking below the ground, e.g. f32 getAnimatedMeshSceneNodeYOffset(scene::IAnimatedMeshSceneNode*  node) {     f32 scale = 1.0f;     scene::ISceneNode* parent = node->getParent();     if (parent)         scale...

Sure this can be done in irrlicht. Extract the vertices and indices from the data files by parsing with std::ifstream and std::stringstream. Then set up a scene::SMesh from the vertices and indices and create a scene::IMeshSceneNode for rendering. Cautious: Index in irrlicht starts from 0 instead of...

@arnir:

... (but follow geometry "under the decal" - it's good!)...

Then you should update invFinalMat only when firing the gun,
i.e. calculate invFinalMat outside the shader callback and send it to the shader callback at the proper moment.

Regards,
smso

hendu wrote:No, the function does correspond to the multiplication (the fourth component of a 4-wide vector is simply ignored), and OP's case should indeed work.

Sorry, my fault.
I looked at the source code "matix4.h" and confirm hendu's saying.

Regards,
smso

The transformVect() function is not the same as "multiplication of vector by a matrix". Think about this:
matrix4 is 4x4 and vector3df is 3x1 (or 1x3 ?)...

Regards,
smso

You may be interested in this:

http://irrlicht.sourceforge.net/forum/v ... =9&t=47304

Regards,
smso

You should disable lighting for the node if no light was used:
Regards,
smso

It seems that your model is not centered at the origin. Try revolveNodeInLocalSpace() instead.
pivot is the offset from the origin

Regards,
smso

See:
http://irrlicht.sourceforge.net/forum/v ... =9&t=47924

Regards,
smso

Try another mesh and/or turn on the debug data of the node.

Regards,
smso