Minitutorial about polishing cut fractals (en)Sometimes we find that, in an already rendered fractal, there is an interference between the fractals and a plane, resulting in a fractal that seems to have been cut (fig. 1). There are at least three ways to avoid this:
A. Activating "In and Outside" rendering. This is what I did when I didn't know much about MB3D. It is very slow. Can easily duplicate the time of a fractal because have to render both sides. The description itself of the inside mode is "slow raymarching on the inside with maximum iterations".
B. Avoiding the "cut surfaces" by walking in or out (remember to tick first, "Fixed zoom and steps"(!), or changing iterations, etc. In resume, using 3D Navi. This is most of the times the better solution.
C. We can re-calculate those parts of the image.
And this what I want to explain in this simple tutorial. Sometimes you ca
Manip Academy #14 - MeshNew mesh from grayscale
This tool could be useful...or not, but it's fun to use. Result is what it is...little weird. I made wallpaper from it.
Here we go...
1. Open new file. I make it 1920 x 1080 (wallpaper size), but you can make any size you want. If the file dimensions are high, it takes more pc cpu power.
2. Open texture file (you can download it from here Burning Black Cracked Yogurt - texture). You can use any texture, but the result is different.
3. Choose Elliptical marque tool and make copy of the texture (middle, where is more red).
4. Move it to the new layer and scale it down, so it fits and make a copy of it (just in case).
5. Choose Blur -> Gaussian blur -> Make radius about 5,0. More radius, more softer result.