Development Journal of a Raytracer

Today I was spending some time to finish with the basic setup of Arch Linux in a virtual machine. I actually like Arch and will probably install it directly on the machine.

But I also continued a bit on the layered materials. I modeled a bottle which I will try to use to finish the layered materials. But first I have to check the current code again, there is something strange going on. I haven't made the bottle highly transparent, but it looked nearly opaque and also much too bright. So it seems I still have some bug in the changes I did previously for the layered materials.

I will also add a small new feature to the materials. I intend to add a second texture class to my main material class. That class of materials has three components, the color, the normal (or rather change of normal) and the lighting model to use. Texture is obviously a color component and I want to add one, where I can limit the texture to a small part of uv-space.

The intended purpose is for a label on the bottle. I currently have no good way to do that, I would need to use a huge texture image where most of the image is fully transparent. There would be a second way, I could use a different uv-mapping of the object. But currently I don't have that feature in my program and it would be much more difficult to add. The limitation of the uv-space is easy.