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#pragma once
#include "mat4.h"
#include "spatial3.h"
typedef struct Camera {
Spatial3 spatial;
mat4 projection;
} Camera;
/// Create an orthographic camera.
///
/// The camera is positioned at the origin with canonical right/up/forward
/// vectors.
///
/// \param left The coordinate for the left vertical clipping plane.
/// \param right The coordinate for the right vertical clipping plane.
/// \param bottom The coordinate for the bottom horizontal clipping plane.
/// \param top The coordinate for the top horizontal clipping plane.
/// \param near The distance to the near clipping plane.
/// \param far The distance to the far clipping plane.
static inline Camera camera_orthographic(R left, R right, R bottom, R top,
R near, R far) {
return (Camera){.spatial = spatial3_make(),
.projection =
mat4_ortho(left, right, bottom, top, near, far)};
}
/// Create a perspective camera.
///
/// The camera is positioned at the origin with canonical right/up/forward
/// vectors.
///
/// \param fovy The vertical field of view angle in degrees.
/// \param aspect The aspect ratio that determines the field of view in the
/// x-direction.
/// \param near Distance to the near clipping plane.
/// \param far Distance to the far clipping plane.
static inline Camera camera_perspective(R fovy, R aspect, R near, R far) {
return (Camera){.spatial = spatial3_make(),
.projection = mat4_perspective(fovy, aspect, near, far)};
}
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