62 lines
1.6 KiB
C
62 lines
1.6 KiB
C
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#pragma once
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#include "Plane.h"
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namespace Cesium3DTilesSelection {
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/**
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* @brief A culling volume, defined by four planes.
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*
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* The planes describe the culling volume that may be created for
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* the view frustum of a camera. The normals of these planes will
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* point inwards.
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*/
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struct CullingVolume final {
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/**
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* @brief The left plane of the culling volume.
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*
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* Defaults to (0,0,1), with a distance of 0.
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*/
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CesiumGeometry::Plane leftPlane{glm::dvec3(0.0, 0.0, 1.0), 0.0};
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/**
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* @brief The right plane of the culling volume.
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*
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* Defaults to (0,0,1), with a distance of 0.
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*/
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CesiumGeometry::Plane rightPlane{glm::dvec3(0.0, 0.0, 1.0), 0.0};
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/**
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* @brief The top plane of the culling volume.
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*
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* Defaults to (0,0,1), with a distance of 0.
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*/
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CesiumGeometry::Plane topPlane{glm::dvec3(0.0, 0.0, 1.0), 0.0};
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/**
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* @brief The bottom plane of the culling volume.
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*
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* Defaults to (0,0,1), with a distance of 0.
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*/
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CesiumGeometry::Plane bottomPlane{glm::dvec3(0.0, 0.0, 1.0), 0.0};
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};
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/**
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* @brief Creates a {@link CullingVolume} for a perspective frustum.
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*
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* @param position The eye position
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* @param direction The viewing direction
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* @param up The up-vector of the frustum
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* @param fovx The horizontal Field-Of-View angle, in radians
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* @param fovy The vertical Field-Of-View angle, in radians
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* @return The {@link CullingVolume}
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*/
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CullingVolume createCullingVolume(
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const glm::dvec3& position,
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const glm::dvec3& direction,
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const glm::dvec3& up,
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double fovx,
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double fovy) noexcept;
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} // namespace Cesium3DTilesSelection
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