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// Copyright 2009 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
// camera.ih Defines the abstract base class of an ISPC-side camera
#pragma once
#include "common/Ray.ih"
#include "common/RayCone.ih"
#include "rkcommon/math/box.ih"
// c++ shared
#include "CameraShared.h"
OSPRAY_BEGIN_ISPC_NAMESPACE
struct FeatureFlagsHandler;
// Specifies the input parameters (time, screen, and lens
// samples) required for 'initRay' to generate a primary ray
struct CameraSample
{
vec2f screen; // normalized screen sample, in [0..1]
vec2f lens;
float time;
vec2f pixel_center;
};
inline vec2f Camera_subRegion(const Camera *uniform self, const vec2f &screen)
{
return lerp(screen, self->subImage.lower, self->subImage.upper);
}
inline float Camera_shutterTime(
const Camera *uniform self, const vec2f &screen, float time)
{
if (self->globalShutter)
return lerp(time, self->shutter.lower, self->shutter.upper);
time *= self->rollingShutterDuration;
const float pos = self->rollingShutterHorizontal ? screen.x : screen.y;
return clamp(time + lerp(pos, self->shutter.lower, self->shutter.upper));
}
OSPRAY_END_ISPC_NAMESPACE
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