#Shadow complex map in lava factory how to#

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Specular Roll Off does not affect the reflections produced when you render using raytracing. The horizontal dimension of the graph represents the brightness of specular reflections and the vertical represents the facing angle with the view. Water and wax both have a relatively low refractive index, thus this can help simulate the look of a waxed car finish, an ocean surface or a wet object. Making the graph slope down to the right simulates the fresnel effect, where objects with a low refractive index are more reflective towards the edge (where the normal is perpendicular to the view). The facing ratio is the input to the graph. This modulates or scales the intensity of the specular highlight. If there is more than one ramp index, the specular color varies based on the brightness of the highlight.įor descriptions of the attributes, which are the same as the Color attributes, see Color. By making the Specular Color brighter or dimmer, you can control the brightness of the specular reflections on an object. The final color of a specular reflection is a combination of the Specular Color and the color of the light. Is the color of the specular reflections, also called hot spots, on the material. For more information, see Specular Shading attributes (Blinn). EccentricityĬontrols how big the specular highlights, or hot spots, are. It is a simple multiplier of the specular color.

Two color entries have been entered into the ramp, the first of which has its position mapped to a fractal texture.Ĭontrols how bright the specular highlights are. However, you only see the effect of the texture in the material sample swatch and in the shader icon (in the hypershade), not in the Ramp Editor.Ĭonsider the following example. You can map textures to your ramp in both the Ramp Editor and within the Attribute Editor. To alter the effect of the texture, increase or decrease the Alpha Gain value.įor more interesting effects, you can also alter the Interpolation method of the ramp in the Attribute Editor. Increase or decrease the Alpha Offset value. To alter the position of the handle, expand the Color Balance section of the texture in the Attribute Editor. The position is now fully defined by the texture that you have chosen. Right-click the Selected Position attribute in the Attribute Editor (or Ramp Editor) and choose Create New Texture to map a texture.Īfter you have mapped a texture to the position of a handle, the position field becomes locked (the text box appears yellow). Alternatively, you can experiment with the settings to create complex effects such as natural looking watercolors, or making the gradient more blurry in some areas and sharper in others.Ĭlick the handle above the ramp to select it. For example, you can make the boundary between two colors a blurry, noise-like pattern using the noise texture. Using this technique, you can create variations within the color boundaries of a ramp. You can map the position of a ramp index to a texture to achieve interesting effects. Mapping the position of a ramp index to a texture

Shadow complex map in lava factory