Irrlicht Engine

Check your mesh normals. Have you done a scale on the mesh? If you have, your normals have gone bad and need recalculating. I had this problem too. Some meshes (I didn't scale) were fine, others (that I did scale) were awful.

With built in transparency, which uses pixel blending not alpha, there are no "artifacts". However that isn´t very useful to know. As far as I've learned, all blending techniques are, at the base level, the same. Alpha is simply a component of a 32bit color that can be used by the blendin...

The Torus model is not bad. Disable the shader but keep the built in transparency material and screenshot that.

That's not the entire shader code is it? Have you used the transparency material on the torus without the shader? Using a texture you can use EMT_TRANSPARENT_ALPHA_CHANNEL as long as the texture itself has alpha'd pixels in it. Without a texture (or with) you would want to use EMT_TRANSPARENT_ADD_CO...

The torus is okay. I'm going to assume from here on that your shader is not working correctly because it is verified not an Irrlicht problem.

I uploaded one on the previous page of posts. Was it too sparse for you?

How nice of you to imply ;) I bet I have more experience than you. (I too can do ad-hom!) Absolutely I could be wrong. Let's wait for the model to be posted. LOL, you're right. I meant no disrespect in it. For all I know you could be a professional 3d modeler. But I really meant it for the poster m...

hendu, those "artifacts" from the picture in the above post is from extra polies inside the torus that shouldn't be there. I'm pretty sure of it. I use the transparent material(s) often enough for glass objects and there have never been any undesired artifacts. I make all my models myself ...

What torus mesh are you using? Upload it. I think something is wrong with it.

did that already. with the tree loaded the FPS takes quite a hit, I guess its just too complex an object to run in real-time well. I´ve seen some RT 3D that handles trees on large landscapes from that french guy, had thought they were meshes but guess he´s using another technique.. Most people use ...

well its a tree in this case, so there is the trunk, broughs, twigs, 6 materials for 6 meshbuffers, and 1 massive mesh buffer for all the needles. Total 7. Should the needles be best separated into two separate meshes, a ring of needles for the ends of all twigs, and a small row of needles that can...

That model has over 1,000,000 vertices and 700,000 faces, and You ABSOLUTELY MAD if you think this is going to work in Irrlicht or any other game engine. Try using the Sapling add on to make a tree -- It can be turned on in blender: File -> User preferences -> addons -> Add Curve -> Sapling [X] I to...

Tried that. Can't remember the outcome.. I think nothing happened. Would have to try it again to be sure.

Hybrid.. actually... I do scale the controls down. I always recalculate the normals for mesh because they are bad when I load the .obj file. So I changed the scale to 1,1,1 and set the materials to default and it looked better. But how do I normalize normals on a node after it is scaled? Or should I...

If you use GIMP, there is a normal map plug-in out there that does a fantastic job of creating normal maps for you. It has some good options and it hasn't crashed, yet.

http://code.google.com/p/gimp-normalmap/