# Glass Model This model represents materials with a glass-like quality. It allows for selecting and editing: * `Environment Mapping` * `Normal Mapping` * `Base Texture`, `Color`, and `Blending` * `Reflection Color`, `Roughness`, and `Fresnel` * as well as adjusting `Shadow Sensitivity`. All these **Attributes** are described in greater detail below. ![](/files/nKACRK29zujNhD2QpOHk) ## Attributes ### Material ![Material](/files/FqwButYwhdvX2dTNlHCX) This **Attribute** provides the `Name` of the **Material** as well as the `Shading model` type. It also sets the `Alpha` value if it is toggled on. The `Alpha` channel is additional to the RGB channels and adds a kind of transparency to the object by mixing the background and foreground colors. For example, if the `Alpha` value is set to 0.5, then this would result in a 50% mix of the object and its background, providing a somewhat see-through quality. ### Environment Map ![Environment Map](/files/Rb1tTdpvG8KCnEhSWT5O) This enables the user to set a **Texture** which reflects the environment around an **Object**, meaning that the **Object** reflects the surface surrounding it (whether that be the background, another **Object**, or both combined.). Initially, there is only the **Attribute** `Overwrite Env.` which is toggled off by default. If it is toggled on, all of the other **Attributes** are revealed. `Environment Map` is the desired **Texture** to be used (a *equirectangular* or *cubemap* **Texture** of type *PNG*, *JPG*, *EXR*, or *HDR*). `Tint` provides the color of the tint. The **Texture’s** RGB channels (not alpha) are then multiplied by the chosen tint. `Exposure` determines how bright the **Texture** should be with a value from 0 to infinity. `Rotation` sets the beginning of the image of the provided `Texture` to be "delayed" in the x or direction, moving it from left to right. The resulting "cut off" piece wraps around to the start of the image. Its range is from 0 degrees to 360 degrees. `Tilt` sets the beginning of the image of the provided `Texture` to be "delayed" in the y or direction, moving it from bottom to top. The resulting "cut off" piece wraps around to the start of the image. Its range is from -90 degrees to 90 degrees. `Projection Height` is where the ‘point of visualization’ starts. If set to 50%, this would be halfway from the bottom of the image and it would display upwards from there. To see a visual example of this, please refer to the video linked [here](https://www.youtube.com/watch?v=7axPpWTcFrw). ### Normals ![Normals](/files/mEUvXstp99qcQ66IXj7J) A normal is a line perpendicular to the surface of some object. *Normal mapping* distorts these normals and simulates a surface with light and shadow, even if the object surface itself is flat. This is only possible with a light source. The `Normal Map` sets this surface and `Use Normal Map` toggles it on and off. ### Base ![Base](/files/6pK8FVvGIDYbhOPV1J7R) `Color` of `Base` sets the base diffuse color of the model. `Albedo Map` takes any image to add any desired visual information. Using `Blending`, the `Texture` and `Color` are combined. If `Blending` is set to 1 then 100% of the `Texture` is displayed on the **Object**. If 0.5, then it displays a 50/50 ratio of `Texture` and `Color`. ### Reflection ![Reflection](/files/8SxJCe448aXJIExMw63k) These **Attributes** simulate a reflective surface. `Roughness` determines how rough an object is, limiting or strengthening reflectivity. `Fresnel` encompasses the idea of the angle of incidence (the angle between the line of sight of the observer and the object being observed) influencing the perceived reflectivity of a surface. A wider angle creates less reflection and a smaller angle creates greater reflection. ### Tweak ![Tweak](/files/Tq1GpfShAHLiII0BQ9c0) `Shadow Sensitivity` determines the percentage of influence by the shadow. For example, a 1 would set an **Object's** surface to completely black. 0.5 would mean that even if the **Object** is in shadow, it would still have 50% of its color. ### Property Names It is possible to hover over each **Attribute** and access their property names to be used in code or **Nodes**. A complete list of these names is as follows: * `Use Alpha`: use\_alpha * `Alpha`: alpha * `Overwrite Env.`: env\_overwrite * `Environment Map`: environment\_map * `Tint`: env\_tint * `Exposure`: env\_exposure * `Rotation`: env\_rotate * `Tilt`: env\_tilt * `Projection Height`: env\_projection\_height * `Use Normal Map`: use\_normal\_map * `Normal Map`: normal\_map * `Albedo Map`: albedo\_map * `Color` (Base): albedo\_color * `Blending`: albedo\_map\_blending * `Color` (Reflection): reflection\_color * `Roughness`: reflection\_roughness * `Fresnel`: reflection\_fresnel * `Shadow Sensitivity`: shadow\_sensitivity --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. 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