Documentation

glsl is a QuasiQuoter which produces GLSL source code with #line directives inserted so that error locations point to the correct location in the Haskell source file. It also permits basic string interpolation.

• Interpolated variables are prefixed with $
• They can optionally be surrounded with braces like ${foo}
• Interpolated variables are converted to strings with show
• To escape a $ use \$

An explicit example (interactive is from doctest):

>>> let version = 450 :: Int in [glsl|#version $version|]
"#version 450\n#extension GL_GOOGLE_cpp_style_line_directive : enable\n#line 72 \"<interactive>\"\n"

Note that line number will be thrown off if any of the interpolated variables contain newlines.