Update 7-Textures.md

7-Textures.md

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+<a name="7"></a>
+<a name="textures"></a>
+## 7. Textures
+
+This section will focus on Texture assets and their internals.
+
+### Sections
+
+> 7.1 [Dimensions Are Powers of 2](#textures-dimension)
+
+> 7.2 [Texture Density Should Be Uniform](#textures-dimension)
+
+> 7.3 [Textures Should Be No Bigger than 8192](#textures-max-size)
+
+> 7.4 [Correct Texture Groups](#textures-textures-group)
+
+<a name="7.1"></a>
+<a name="textures-dimensions"></a>
+### 7.1 Dimensions Are Powers of 2 
+
+All textures, except for UI textures, must have its dimensions in multiples of powers of 2. Textures do not have to be square.
+
+For example, `128x512`, `1024x1024`, `2048x1024`, `1024x2048`, `1x512`.
+
+<a name="7.2"></a>
+<a name="textures-density"></a>
+### 7.2 Texture Density Should Be Uniform
+
+All textures should be of a size appropriate for their standard use case. Appropriate texture density varies from project to project, but all textures within that project should have a consistent density.
+
+For example, if a project's texture density is 8 pixel per 1 unit, a texture that is meant to be applied to a 100x100 unit cube should be 1024x1024, as that is the closest power of 2 that matches the project's texture density. 
+
+<a name="7.3"></a>
+<a name="textures-max-size"></a>
+### 7.3 Textures Should Be No Bigger than 8192 
+
+No texture should have a dimension that exceeds 8192 in size, unless you have a very explicit reason to do so. Often, using a texture this big is simply just a waste of resources.
+
+<a name="7.4"></a>
+<a name="textures-group"></a>
+### 7.4 Textures Should Be Grouped Correctly 
+
+Every texture has a Texture Group property used for LODing, and this should be set correctly based on its use. For example, all UI textures should belong in the UI texture group.
+
+**[⬆ Back to Top](#textures)**