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Public 成员函数 | 静态 Public 成员函数 | 所有成员列表
eve::graphics::fog::AnalyticalVolLight类 参考

Analytic volumetric light: ray ∩ capped frustum, depth-clipped short integral. 更多...

#include <AnalyticalVolLight.h>

Public 成员函数

Result< FogRayResult > integrate (const AnalyticBeam &beam, const FogProfile &profile, const glm::vec3 &origin, const glm::vec3 &direction, float sceneDepth, int segments, float mediumDensity) const
 Integrate the beam contribution along a view ray.
 

静态 Public 成员函数

static std::optional< FogRayInterval > intersectBeam (const glm::vec3 &origin, const glm::vec3 &direction, const AnalyticBeam &beam)
 Intersect a view ray with a capped beam; empty on miss.
 

详细描述

Analytic volumetric light: ray ∩ capped frustum, depth-clipped short integral.

Segment counts of 2 / 4 / 8 map to Fast / Enhanced / PhysicalReference budgets.

在文件 AnalyticalVolLight.h 第 36 行定义.

成员函数说明

◆ integrate()

Result< FogRayResult > eve::graphics::fog::AnalyticalVolLight::integrate ( const AnalyticBeam &  beam,
const FogProfile &  profile,
const glm::vec3 &  origin,
const glm::vec3 &  direction,
float  sceneDepth,
int  segments,
float  mediumDensity 
) const

Integrate the beam contribution along a view ray.

参数
sceneDepthScene hit distance; <=0 means no opaque occluder.
segments2, 4, or 8 short integral segments.
mediumDensityApproximate homogeneous density inside the beam.

在文件 AnalyticalVolLight.cpp 第 65 行定义.

引用了 eve::graphics::fog::AnalyticBeam::apex, center, eve::graphics::fog::AnalyticBeam::color, dir, eve::graphics::fog::AnalyticBeam::direction, direction, eve::Diagnostic::error(), eve::graphics::fog::FogProfile::extinctionAt(), eve::Result< T >::failure(), eve::graphics::fog::AnalyticBeam::farDistance, eve::graphics::fog::AnalyticBeam::farRadius, eve::graphics::fog::FogRayResult::inScatter, eve::graphics::fog::AnalyticBeam::intensity, intersectBeam(), eve::InvalidArgument, mask, eve::graphics::fog::AnalyticBeam::nearDistance, eve::graphics::fog::AnalyticBeam::nearRadius, eve::graphics::fog::FogRayResult::opticalDepth, origin, p, eve::graphics::fog::FogProfile::phase(), phase, radius, eve::graphics::fog::FogRayResult::samplesUsed, eve::graphics::fog::FogProfile::scatteringAt(), eve::Result< T >::success(), t, eve::graphics::fog::FogRayResult::transmittance , 以及 u.

被这些函数引用 eve::graphics::fog::FogSystem::integrateBeam().

◆ intersectBeam()

std::optional< FogRayInterval > eve::graphics::fog::AnalyticalVolLight::intersectBeam ( const glm::vec3 &  origin,
const glm::vec3 &  direction,
const AnalyticBeam &  beam 
)
static

Intersect a view ray with a capped beam; empty on miss.

在文件 AnalyticalVolLight.cpp 第 13 行定义.

引用了 eve::graphics::fog::AnalyticBeam::apex, b, c, center, d, eve::graphics::fog::AnalyticBeam::direction, direction, eve::graphics::fog::AnalyticBeam::farDistance, eve::graphics::fog::AnalyticBeam::farRadius, eve::graphics::fog::AnalyticBeam::nearDistance, eve::graphics::fog::AnalyticBeam::nearRadius, origin, p, radius, s, t , 以及 u.

被这些函数引用 integrate().

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