Many of the computer games that are coming out today come from this gaming engine. Unreal Engine is a very powerful game engine. The Unreal Engine gaming engine provides a collection of the most complete tools for 1 last thing and this is more nit picky then anything id say the layer of cracks that seems to be a copy of the top layer beneath maybe just for that layer use your fernsel inverted as a opacity to make them disappear towards the edge of your geo.Unreal Engine is a very powerful game engine. But I do think on top of this having a few pieces of geo inside your ice to create the look of cracks that light up at the right viewing angle would be a great touch. I really like this tho, I think I can use something similar for a jade statue. Shader looks great, tho the normal on the top seems almost invisible. This first section just makes a basic mask using the texture we created earlier, but we also add some fresnel, so that the edges of the object do not become completely transparent as this can make the object feel floaty, and not very grounded in the world. We need to keep this in mind as we build the opacity graph, so that we adress both these needs correctly
With translucency on the other hand, white areas = opaque, black areas = completely transparent. It is important to note that Opacity serves two purposes in this material, since our material uses a subsurface shading model, the opacity controls how much subsurface scattering happens on the surface of the object, in the opacity map, white areas = more scattering black areas= less scattering. (Note: The translucent version of the material is quite expensive, use carefully, ideally any objects that use this shader should mip out to a cheaper version of the material quickly) So, this will affect how the Opacity output is used depending on whether we enable translucency or not In the following sections we will set up the Opacity output for the material, this part of the graph affect the material in two ways.ġ.) It controls teh amount of subsurface scattering that occurs on the surfae of the meshĢ.) With translucency enabled,it controls how opaque/Translucent the material is. The gif below shows what the result of this network looks like.
This is done so the bubbles are not visible if they are under the Opaque sections of the ice surface. We multiply the end result of this network with the an the inverted result of Mask_01 from the previous section. Next we repeat the procedure for setting up tiling values,We set a higher tiling value to make the bubbles appear smaller, to help improve the fake depth effect, In the Bump offset node we set a heihgt ratio of -1.0. First we set up two scalar parameters and add it to the texture coordinate, this will let us add some offsets in the U and V directions to create some variation. We set a height ratio value of -0.2, so the bubbles appear just below the surface.Ģ) This section will be bubbles that are deeper inside the surface. In the graph above we repeat the process of setting up tiling parameters for the textures for each texture sample.ġ) This will be the upper most layer of bubbles,we will sue the Blue Channel of the texture as that is where we stored the blobby bubble pattern. Lighting is especially important to get some nice looking subsurface, In my screenshots, I’ve used Epic’s Lightstage map, which by default has good lighting for showcasing assets, but I tweaked it a little to suit my needs, I set up a basic 3-point lighting system with a strong rim/backlight to show the subsurface and added a little bit of color grading to add a cooler atmosphere. Lighting is definitely very important, especially with materials like this which use subsurface and translucent elements.
#DOWNLOAD UNREAL ENGINE 4 CRACK CRACK#
The crack pattern is actually used multiple times in the shader, its used to mask bubbles, it’s used control the roughness in specific areas, and it’s also got an offset version layered underneath to fake subsurface cracks. When I went back to my reference images, this was a common pattern that I saw, so it made sense to try and make crack pattern like this.
So I had to go back and re-think the patterns I used, and that’s when I noticed the crack patterns on Frozen lake surfaces.
I had initially gone with a more cloudy pattern, but I got some feedback about how it looked more like jello than ice.
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