Shader Practice 4-Snow (kinda failed)

Again, the target is the picture down there. Free scene asset and make some snow affect on it.





The nodes this time is easier, I feel like getting more familiar with serval most used functions. Time to move forward, next time I will make something new based on tutorials. While the probelme is, I'm pretty sure I have clear pipelines, but it doesn't work on default objects. For whatever object it is, it will be like 


All the faces of the object is covered with snow. Compared to the scene in tutorial, I guess it's because that the shader only works on models with specifically separated UV which has the same direction with 'Normal Vector' on Y axis. If the object is just simply covered with a texture on the material, that problem comes. Still, I need to find some delicate models to prove my assumption. 

Comments

Post a Comment

Popular posts from this blog

Thesis Progress - Noise Map

Image
 In another around of research, I found a toolkit and try to use it for my project.  Resource:  https://github.com/mtwoodard/TextureGenerator It's a 3D texture generator designed for raymarching clouds. As we know, the process of my project includes the steps of asset shape then blurred by noise map. Both of them are based on 3D texture. The initial idea was to apply perlin and worely noise, cuz that's the method introduced by many paper. But now, I got this tool which makes it easier.  From last blog, I already had a framework that can drive the 3D texture for some extent. And the noise map makes it pretty close to the final result. Here's what it looks like and it makes me HAPPY. There's an example in the toolkit , I applied it with my 3D texture script. It's not that clear now, then I juggled with some parameters on Blur Material.  Transparency: 0.4 OpacityCorrection: 2.4 Then the outcome shows some really nice work. And each of those plane is attached to tex...
Read more

Thesis Progress - Schedule Check

Image
According to the timetable, the goal of this quarter is to finish the first two parts which are the function experiment for thesis project. So far,  the first method I came up with is going through 40% around, still need some more learning on coding to realize modification. At the same time, I'm still trying to find the other ways that might be better or easier, which could replace the current method. The way I make it should be covered by my capability as much as possible.  Other than that, I'm also considering whether I should have a comparsion between my method and traditional way of making 3D texture. It's mostly from the thesis perspective that I need to show the advantage or benefit of my own method. That requires more specific arrangement on timeline. 
Read more

Thesis Progress - Procedural 3D texture

Image
 According to tutorials, there's some outcome. The function realized plane creating, which would be saved later for my further using.  The problem so far is that the sphere generating function is way too complicate to modify myself, and it closely related to the planes, so it might cost more time on learning.  There's another easier example, what I can understand is the switch from object to worldspace. Once the cube is out of range, the texture could not sample on the object accurately. But not sure if I would use this later, but good to know what's going on in codes.  Resources archive:  https://www.youtube.com/watch?v=FUpsRzricPA&t=3s            The second example is from unity documentation that introduces the usage of 3D texture, this part could be as the framework of raymarching that allows to modify the shape possibily. This part will be put behind currently.  Resources archive:  https://docs.unity3d.com/Manual/...
Read more