project32.md

project32 (Shader Module)

The project32 shader module is an extension of the project shader module that adds some projection utilities.

GLSL Functions

project_position_to_clipspace

32 bit implementation of the project_position_to_clipspace interface.

vec4 project_position_to_clipspace(vec3 position, vec3 position64Low, vec3 offset)
vec4 project_position_to_clipspace(vec3 position, vec3 position64Low, vec3 offset, out vec4 commonPosition)

Parameters:

• position - vertex position in the layer's coordinate system.
• position64Low - lower part of the vertex position, calculated as aLow = a - Math.fround(a).
• offset - offset from the coordinate, in common space
• commonPosition - projected position in the common space

Returns: Projected position in the clipspace.