[package]
name = "nalgebra-glm"
version = "0.2.0"
authors = ["sebcrozet <developer@crozet.re>"]

description = "A computer-graphics oriented API for nalgebra, inspired by the C++ GLM library."
documentation = "https://www.nalgebra.org/rustdoc_glm/nalgebra_glm/index.html"
homepage = "https://nalgebra.org"
repository = "https://github.com/rustsim/nalgebra"
readme = "../README.md"
categories = [ "science" ]
keywords = [ "linear", "algebra", "matrix", "vector", "math" ]
license = "BSD-3-Clause"

[features]

## Default to produce opengl compatible matrices and conventions
default = ["opengl_projection"]

## Produce projection matrices and default to coordinate space behaviour that is compatible with OpenGL's NDC space
opengl_projection = ["right_hand_default", "negone_to_one_clip_default"]

## Produce projection matrices and default to coordinate space behaviour that is compatible with Vulkan's NDC space
vulkan_projection = ["right_hand_default", "zero_to_one_clip_default", "projection_y_flip"]

## Produce projection matrices and default to coordinate space behaviour that is compatible with DirectX's NDC space
directx_projection = ["left_hand_default", "zero_to_one_clip_default"]

## Applies an implicit `mat[(1,1)] *= -1` to all projection matrices. Essentially flips the output of using the matrix
## about the x axis (vertical flip)
projection_y_flip = [] 

## Whether to default to left hand (DirectX) or right hand (OpenGL/Vulkan) coordinate system behaviour
left_hand_default = []
right_hand_default = []

## Whether to default to 0 to 1 depth range (DirectX, Vulkan, Metal) or -1 to 1 (OpenGL) behaviour
zero_to_one_clip_default = []
negone_to_one_clip_default = []

[dependencies]
num-traits = { version = "0.2", default-features = false }
approx = { version = "0.3", default-features = false }
alga = "0.7"
nalgebra = { path =  "..", version = "^0.16.4" }