cajeta.math.Camera — the projection and view matrix builders a renderer’s camera produces. A pure static-utility class (no instance state); each method returns a Matrix<float32,4,4>. Conventions are locked: right-handed view space (camera looks down −z, +x right, +y up), clip-space depth range [0, 1] (Vulkan / D3D, not OpenGL’s [-1, 1]), and column-vector transforms (m * v) with row-major storage.

package snip.camera;

import cajeta.math.Camera;

public final class Demo {
    public static void run() {
        Matrix<float32,4,4> proj = Camera.perspective(1.0472f, 1.7778f, 0.1f, 1000.0f);
        Vector<float32,3> eye = stack Vector<float32,3>(0.0f, 2.0f, 5.0f);
        Vector<float32,3> at = stack Vector<float32,3>(0.0f, 0.0f, 0.0f);
        Vector<float32,3> up = stack Vector<float32,3>(0.0f, 1.0f, 0.0f);
        Matrix<float32,4,4> viewMat = Camera.lookAt(eye, at, up);
        Matrix<float32,4,4> viewProj = proj * viewMat;   // builtin matrix multiply
        return;
    }
}

Methods

Signature
`static Matrix<float32,4,4> perspective(float32 fovyRadians, float32 aspect, float32 near, float32 far)` ⚑	Right-handed perspective projection with clip depth `[0,1]`; `fovyRadians` is the vertical field of view in radians
`static Matrix<float32,4,4> ortho(float32 left, float32 right, float32 bottom, float32 top, float32 near, float32 far)` ⚑	Right-handed orthographic projection with clip depth `[0,1]`
`static Matrix<float32,4,4> lookAt(Vector<float32,3> eye, Vector<float32,3> center, Vector<float32,3> up)` ⚑	Right-handed view matrix placing the camera at `eye` looking toward `center` with the given `up` reference

⚑ = @EntryPoint

Camera

Methods

See also