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ALS technical notes: Difference between revisions
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→Glossy surfaces
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This parameter regulates how strong the Fresnel term of a glossy surface is. Many smooth surfaces reflect much more under shallow angles such that an environment reflection is not very prominent when looking under 90 degrees but dominates the visuals when looking under a grazing angle. The parameter sets the relative strength of a Fresnel reflection with respect to the basic reflection definition which is assumed to hold for vertical viewing (i.e. setting the parameter to 0.8 gives you extra glossiness under shallow angles). | This parameter regulates how strong the Fresnel term of a glossy surface is. Many smooth surfaces reflect much more under shallow angles such that an environment reflection is not very prominent when looking under 90 degrees but dominates the visuals when looking under a grazing angle. The parameter sets the relative strength of a Fresnel reflection with respect to the basic reflection definition which is assumed to hold for vertical viewing (i.e. setting the parameter to 0.8 gives you extra glossiness under shallow angles). | ||
The following comparison shows the default color mixing (left) for a reflecting white livery (which appears grey) and for grain merge (right) which preserves the original color much better. In addition, note the enhanced Fresnel reflectivity at the tail on the right picture. | |||
[[File:Reflect model default.jpg|400px|Effect of color mixing in a reflection]] | |||
[[File:Reflect grain merge.jpg|400px|Effect of grain merge in reflection]] | |||
== The exhaust flame effect == | == The exhaust flame effect == | ||