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// Copyright 2022 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
#pragma once
#ifdef __cplusplus
namespace ispc {
#endif // __cplusplus
#if defined(__cplusplus) && !defined(OSPRAY_TARGET_SYCL)
typedef void *Camera_initRay;
#else
struct Camera;
struct CameraSample;
struct Ray;
struct RayCone;
// Fct pointer type for 'virtual' method that sets a pixel,
// generated ray.dir must be normalized to ensure ray.t is world-space distance
// generated rayCone is in normalized camera coordinates for y (height)
typedef void (*Camera_initRay)(const Camera *uniform,
varying Ray &ray,
varying RayCone &rayCone,
const varying CameraSample &sample);
#endif
enum CameraType
{
CAMERA_TYPE_PERSPECTIVE,
CAMERA_TYPE_ORTHOGRAPHIC,
CAMERA_TYPE_PANORAMIC,
CAMERA_TYPE_UNKNOWN,
};
struct Camera
{
CameraType type;
Camera_initRay initRay; // the 'virtual' initRay() method
float nearClip;
box2f subImage; // viewable tile / subrange to compute, in [0..1]^2 x [0..1]^2
range1f shutter; // camera shutter open start and end time, in [0..1]
bool globalShutter;
bool motionBlur; // for the camera itself only, not in general
bool needLensSample;
bool needTimeSample;
bool rollingShutterHorizontal;
float rollingShutterDuration;
RTCScene scene; // only to call rtcGetGeometryTransformFromScene
#ifdef __cplusplus
Camera()
: type(CAMERA_TYPE_UNKNOWN),
initRay(nullptr),
nearClip(1e-6f),
subImage(0.f),
shutter(0.f),
globalShutter(false),
motionBlur(false),
needLensSample(false),
needTimeSample(false),
rollingShutterHorizontal(false),
rollingShutterDuration(0.f),
scene(nullptr)
{}
};
} // namespace ispc
#else
};
#endif // __cplusplus
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