The discrepancy between the upload and create node.

[svedach]

I made in Blender cube of material retained in .dae format. Uploaded in Irrlich, I received the following image:



Then I created a cube in Irrlicht addCubeSceneNode(1), awarded him the material from the temporary node generated from .dae file and get a completely different picture:


Why does the color and reflection of the cube so different? The material used is the same.

The CODE:

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scene::IAnimatedMesh*       Mesh = g_GraphicalWorld->SceneManager()->getMesh("Resources/IndividCubePart.dae");
    scene::ISceneNode*          TempNode    = g_GraphicalWorld->SceneManager()->addMeshSceneNode(Mesh);
    video::SMaterial            Material    = TempNode->getMaterial(0);
    _Node = g_GraphicalWorld->SceneManager()->addCubeSceneNode(1);//g_GraphicalWorld->SceneManager()->addMeshSceneNode(Mesh);
 
    _Node->setMaterialFlag(video::EMF_FOG_ENABLE, true);
    _Node->setMaterialFlag(video::EMF_LIGHTING, true);

[CuteAlien]

My guess would be that the mesh vertices have different colors.
Try to add:

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g_GraphicalWorld->SceneManager()-> getMeshManipulator()->setVertexColors (_Node->getMesh(), static_cast<irr::video::S3DVertex*>(Mesh->getMeshBuffer(0)->getVertices())[0].Color );
 

(Note: I didn't compile, so maybe I got something wrong. The idea is - get the first vertex of the first meshbuffer in the Mesh and copy it's color).
Assumes mesh has vertex-type EVT_STANDARD.

[svedach]

Thanks for the answer. Poprobovol your proposed solution, here's what happened:

[CuteAlien]

Hm, lighting very different. Not quite certain - but only thing I can think of right now is that one cube has maybe less vertices shared. So in the Irrlicht cube case it tries to interpolate lighting more over the corner or so. Could be Blender even has one material per side (Irrlicht uses one for the whole cube I think). In short - there's different ways to make a cube...

[svedach]

Thanks for the reply. Is it possible to cube created in Irrlicht display as created in Blender?

[CuteAlien]

Can you upload that cube-file you have so I can take a look at it? I mean - you can obviously have the same look as it is just a description of geometry and that can be created by code as well. Thought maybe not with cubescenenode. Could be to have exact same result you have to create your own cube. Or just use that file - why create it by hand anyway?

[svedach]

Thank you for your help. I do not want to get the exact geometry of the cube, I want the same display. I use a combination of Irrlicht and Bullet Physics to simulate of neural networks learning environment (do not count them for advertising:https://www.youtube.com/channel/UCM773C ... MFpvrVTO2A). I wanted to make a beautiful display of objects in the world, and to do so in Irrlihte difficult.
That model cubes that I use:
http://my-files.ru/ltvq2h
Can you tell me how to simulate the capsule in Irrlihte?

[CuteAlien]

The cube you send me isn't just a cube. It's a cube with round corners:

If you want to use that - then just export it (as .dae or as .obj file) and use that one in Irrlicht.
You can't make a real cube have same lighting results as an object which isn't a real cube. Lighting is depending on vertices and those are not the same.

Thought it might look more similar if you disable GouraudShading in the SMaterial.

[svedach]

Thank you so much. Taking into account the differences in the geometry of the cube, I got the same display effect. You really helped me.