LYGIA Shader Library

Use:

<mat3> rotate3dY(<float> radians)

Check it on Github

#ifndef FNC_ROTATE3DY
#define FNC_ROTATE3DY
mat3 rotate3dY(const in float theta){
    return mat3(vec3(cos(theta),0.,-sin(theta)),
                vec3(0.,1.,0.),
                vec3(sin(theta),0.,cos(theta)));
}
#endif

Use:

<float3x3> rotate3dY(<float> radians)

Check it on Github

#ifndef FNC_ROTATE3DY
#define FNC_ROTATE3DY
float3x3 rotate3dY(const in float theta){
    return float3x3(float3(cos(theta),0.,-sin(theta)),
                    float3(0.,1.,0.),
                    float3(sin(theta),0.,cos(theta)));
}
#endif

Check it on Github

fn rotate3dY(r: f32) -> mat3x3<f32> {
    return mat3x3<f32>(   vec3f(cos(r), 0.0, -sin(r)),
                        vec3f(0.0, 1.0, 0.0),
                        vec3f(sin(r), 0.0, cos(r)) );
}