Detailed description

A simple implementation of the TPTVertexProcessor policy interface required by all the PTLibCore functions. This class is responsible of processing each vertex generated by the path tracer, including:

the computation of NEE weights
the computation of scattering weights
the accumulation of emissive surface hits
the accumulation of NEE samples

#include <pathtracer_vertex_processor.h>

Public Methods
template<typename PTContext >
FERMAT_DEVICE uint32	preprocess_vertex (const PTContext &context, const RenderingContextView &renderer, const PixelInfo pixel_info, const EyeVertex &ev, const float cone_radius, const cugar::Bbox3f scene_bbox, const uint32 prev_vertex_info, const cugar::Vector3f w, const float p_prev)

template<typename PTContext >
FERMAT_DEVICE void	compute_nee_weights (const PTContext &context, const RenderingContextView &renderer, const PixelInfo pixel_info, const uint32 prev_vertex_info, const uint32 vertex_info, const EyeVertex &ev, const cugar::Vector3f &f_d, const cugar::Vector3f &f_g, const cugar::Vector3f &w, const cugar::Vector3f &f_L, cugar::Vector3f &out_w_d, cugar::Vector3f &out_w_g, uint32 &out_vertex_info)

template<typename PTContext >
FERMAT_DEVICE void	compute_scattering_weights (const PTContext &context, const RenderingContextView &renderer, const PixelInfo pixel_info, const uint32 prev_vertex_info, const uint32 vertex_info, const EyeVertex &ev, const uint32 out_comp, const cugar::Vector3f &g, const cugar::Vector3f &w, cugar::Vector3f &out_w, uint32 &out_vertex_info)
	[PTVertexProcessor::compute_nee_weights] More...

template<typename PTContext >
FERMAT_DEVICE void	accumulate_emissive (const PTContext &context, RenderingContextView &renderer, const PixelInfo pixel_info, const uint32 prev_vertex_info, const uint32 vertex_info, const EyeVertex &ev, const cugar::Vector3f &w)
	[PTVertexProcessor::compute_scattering_weights] More...

template<typename PTContext >
FERMAT_DEVICE void	accumulate_nee (const PTContext &context, RenderingContextView &renderer, const PixelInfo pixel_info, const uint32 vertex_info, const bool shadow_hit, const cugar::Vector3f &w_d, const cugar::Vector3f &w_g)
	[PTVertexProcessor::accumulate_emissive] More...

Member Function Documentation

◆ accumulate_emissive()

template<typename PTContext >

FERMAT_DEVICE void PTVertexProcessor::accumulate_emissive	(	const PTContext &	context,
		RenderingContextView &	renderer,
		const PixelInfo	pixel_info,
		const uint32	prev_vertex_info,
		const uint32	vertex_info,
		const EyeVertex &	ev,
		const cugar::Vector3f &	w
	)

inline

[PTVertexProcessor::compute_scattering_weights]

[PTVertexProcessor::accumulate_emissive] accumulate an emissive surface hit

Parameters

context	the current context
renderer	the current renderer
pixel_info	packed pixel info
vertex_info	packed vertex info
ev	the eye vertex
w	the emissive sample weight

◆ accumulate_nee()

template<typename PTContext >

FERMAT_DEVICE void PTVertexProcessor::accumulate_nee	(	const PTContext &	context,
		RenderingContextView &	renderer,
		const PixelInfo	pixel_info,
		const uint32	vertex_info,
		const bool	shadow_hit,
		const cugar::Vector3f &	w_d,
		const cugar::Vector3f &	w_g
	)

inline

[PTVertexProcessor::accumulate_emissive]

[PTVertexProcessor::accumulate_nee] accumulate a NEE sample

Parameters

context	the current context
renderer	the current renderer
pixel_info	packed pixel info
vertex_info	packed vertex info
hit	the hit information
w_d	the diffuse nee weight
w_g	the glossy nee weight

◆ compute_nee_weights()

template<typename PTContext >

FERMAT_DEVICE void PTVertexProcessor::compute_nee_weights	(	const PTContext &	context,
		const RenderingContextView &	renderer,
		const PixelInfo	pixel_info,
		const uint32	prev_vertex_info,
		const uint32	vertex_info,
		const EyeVertex &	ev,
		const cugar::Vector3f &	f_d,
		const cugar::Vector3f &	f_g,
		const cugar::Vector3f &	w,
		const cugar::Vector3f &	f_L,
		cugar::Vector3f &	out_w_d,
		cugar::Vector3f &	out_w_g,
		uint32 &	out_vertex_info
	)

inline

[PTVertexProcessor::compute_nee_weights] compute nee weights given a vertex

Parameters

context	the current context
renderer	the current renderer
pixel_info	packed pixel info
vertex_info	packed vertex info
ev	the eye vertex
f_d	the diffuse brdf
f_g	the glossy brdf
w	the current path weight
f_L	the current light EDF sample contribution, including the MIS weight
out_w_d	the output diffuse weight
out_w_g	the output glossy weight
out_vertex_info	the output packed vertex info

[PTVertexProcessor::compute_nee_weights_body]

◆ compute_scattering_weights()

template<typename PTContext >

FERMAT_DEVICE void PTVertexProcessor::compute_scattering_weights	(	const PTContext &	context,
		const RenderingContextView &	renderer,
		const PixelInfo	pixel_info,
		const uint32	prev_vertex_info,
		const uint32	vertex_info,
		const EyeVertex &	ev,
		const uint32	out_comp,
		const cugar::Vector3f &	g,
		const cugar::Vector3f &	w,
		cugar::Vector3f &	out_w,
		uint32 &	out_vertex_info
	)

inline

[PTVertexProcessor::compute_nee_weights]

[PTVertexProcessor::compute_scattering_weights] compute scattering weights given a vertex

Parameters

context	the current context
renderer	the current renderer
pixel_info	packed pixel info
vertex_info	packed vertex info
ev	the local vertex
out_comp	the bsdf scattering component
g	the bsdf scattering weight (= f/p)
w	the current path weight
out_w	the output path weight
out_vertex_info	the output vertex info

◆ preprocess_vertex()

template<typename PTContext >

FERMAT_DEVICE uint32 PTVertexProcessor::preprocess_vertex	(	const PTContext &	context,
		const RenderingContextView &	renderer,
		const PixelInfo	pixel_info,
		const EyeVertex &	ev,
		const float	cone_radius,
		const cugar::Bbox3f	scene_bbox,
		const uint32	prev_vertex_info,
		const cugar::Vector3f	w,
		const float	p_prev
	)

inline

preprocess a vertex and return some packed vertex info

Parameters

context	the current context
renderer	the current renderer
pixel_info	packed pixel info
ev	the eye vertex
cone_radius	the current cone radius
scene_bbox	the scene bounding box

The documentation for this struct was generated from the following file:

C:/p4research/research/jpantaleoni/Fermat-Public/src/pathtracer_vertex_processor.h

Detailed description

Public Methods

Member Function Documentation

◆ accumulate_emissive()

◆ accumulate_nee()

◆ compute_nee_weights()

◆ compute_scattering_weights()

◆ preprocess_vertex()