Problem with gfm.math.matrix (some gamedevs out there ?)

[Guillaume Piolat]

On Thursday, 3 September 2020 at 12:36:35 UTC, Thomas wrote:
> ---------------------
> import std.stdio;
>
> int main()
> {
>
>     import gfm.math.matrix;
>
>     const int width = 800;
>     const int height = 600;
>
>     auto projectionMatrix = mat4!(float).identity();

Note that instead of `mat4!(float)` you can just use `mat4f`.



>     auto ratio = cast(float)width / cast(float)height;
>
>     projectionMatrix = mat4!(float).perspective( 45.0f, ratio, 
> 0.0f, 100.0f );

As others said, zNear is zero so your matrix is not invertible.
I guess perspective should warn about that.