---
title: "ProjectionPreludeUniformsType | JavaScript maps SDK"
description: "Documentation for MapTiler SDK"
---

> For AI agents: a documentation index is available at [/llms.txt](https://docs.maptiler.com/llms.txt). Markdown versions of all pages are available by appending .md to any URL.

# Type Alias ProjectionPreludeUniformsType

type ProjectionPreludeUniformsType \= {  
    [u\_projection\_clipping\_plane](#u_projection_clipping_plane): [Uniform4f](https://docs.maptiler.com/sdk-js/api-reference/classes/Externals.Uniform4f/);  
    [u\_projection\_fallback\_matrix](#u_projection_fallback_matrix): [UniformMatrix4f](https://docs.maptiler.com/sdk-js/api-reference/classes/Externals.UniformMatrix4f/);  
    [u\_projection\_matrix](#u_projection_matrix): [UniformMatrix4f](https://docs.maptiler.com/sdk-js/api-reference/classes/Externals.UniformMatrix4f/);  
    [u\_projection\_tile\_mercator\_coords](#u_projection_tile_mercator_coords): [Uniform4f](https://docs.maptiler.com/sdk-js/api-reference/classes/Externals.Uniform4f/);  
    [u\_projection\_transition](#u_projection_transition): [Uniform1f](https://docs.maptiler.com/sdk-js/api-reference/classes/Externals.Uniform1f/);  
}

##### Index

### Properties[](#properties)

[u\_projection\_clipping\_plane](#u_projection_clipping_plane) [u\_projection\_fallback\_matrix](#u_projection_fallback_matrix) [u\_projection\_matrix](#u_projection_matrix) [u\_projection\_tile\_mercator\_coords](#u_projection_tile_mercator_coords) [u\_projection\_transition](#u_projection_transition)

## Properties[](#properties-1)

### u\_projection\_clipping\_plane[](#u_projection_clipping_plane)

u\_projection\_clipping\_plane: [Uniform4f](https://docs.maptiler.com/sdk-js/api-reference/classes/Externals.Uniform4f/)

### u\_projection\_fallback\_matrix[](#u_projection_fallback_matrix)

u\_projection\_fallback\_matrix: [UniformMatrix4f](https://docs.maptiler.com/sdk-js/api-reference/classes/Externals.UniformMatrix4f/)

### u\_projection\_matrix[](#u_projection_matrix)

u\_projection\_matrix: [UniformMatrix4f](https://docs.maptiler.com/sdk-js/api-reference/classes/Externals.UniformMatrix4f/)

### u\_projection\_tile\_mercator\_coords[](#u_projection_tile_mercator_coords)

u\_projection\_tile\_mercator\_coords: [Uniform4f](https://docs.maptiler.com/sdk-js/api-reference/classes/Externals.Uniform4f/)

### u\_projection\_transition[](#u_projection_transition)

u\_projection\_transition: [Uniform1f](https://docs.maptiler.com/sdk-js/api-reference/classes/Externals.Uniform1f/)