mirror of
https://github.com/nillerusr/source-engine.git
synced 2024-12-23 06:36:54 +00:00
77 lines
2.6 KiB
C
77 lines
2.6 KiB
C
|
//========= Copyright Valve Corporation, All rights reserved. ============//
|
||
|
|
//
|
||
|
|
// Purpose:
|
||
|
|
//
|
||
|
|
// $Workfile: $
|
||
|
|
// $Date: $
|
||
|
|
//
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// $Log: $
|
||
|
|
//
|
||
|
|
// $NoKeywords: $
|
||
|
|
//=============================================================================//
|
||
|
|
|
||
|
|
#ifndef RADIAL_H
|
||
|
|
#define RADIAL_H
|
||
|
|
#pragma once
|
||
|
|
|
||
|
|
#include "mathlib/bumpvects.h"
|
||
|
|
#include "mathlib/ssemath.h"
|
||
|
|
#include "lightmap.h"
|
||
|
|
|
||
|
|
#define RADIALDIST2 2 // (1.25*1.25+1.25*1.25)
|
||
|
|
#define RADIALDIST 1.42 // 1.77 // sqrt( RADIALDIST2 )
|
||
|
|
|
||
|
|
#define WEIGHT_EPS 0.00001f
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// The radial_t data structure is used to accumulate irregularly spaced and irregularly
|
||
|
|
// shaped direct and indirect lighting samples into a uniformly spaced and shaped luxel grid.
|
||
|
|
//
|
||
|
|
// The name "radial" is more historical than discriptive; it stems from the filtering method,
|
||
|
|
// one of several methods initially tried. Since all the other methods have since been deleted,
|
||
|
|
// it would probably be more accurate to rename it something like "LuxelAccumulationBucket" or
|
||
|
|
// something similar, but since "radial" is fairly meaningless it's not like it's actually confusing
|
||
|
|
// the issue.
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
typedef struct radial_s
|
||
|
|
{
|
||
|
|
int facenum;
|
||
|
|
lightinfo_t l;
|
||
|
|
int w, h;
|
||
|
|
float weight[SINGLEMAP];
|
||
|
|
LightingValue_t light[NUM_BUMP_VECTS + 1][SINGLEMAP];
|
||
|
|
} radial_t;
|
||
|
|
|
||
|
|
|
||
|
|
void WorldToLuxelSpace( lightinfo_t const *l, Vector const &world, Vector2D &coord );
|
||
|
|
void LuxelSpaceToWorld( lightinfo_t const *l, float s, float t, Vector &world );
|
||
|
|
|
||
|
|
void WorldToLuxelSpace( lightinfo_t const *l, FourVectors const &world, FourVectors &coord );
|
||
|
|
void LuxelSpaceToWorld( lightinfo_t const *l, fltx4 s, fltx4 t, FourVectors &world );
|
||
|
|
|
||
|
|
void AddDirectToRadial( radial_t *rad,
|
||
|
|
Vector const &pnt,
|
||
|
|
Vector2D const &coordmins, Vector2D const &coordmaxs,
|
||
|
|
Vector const light[NUM_BUMP_VECTS+1],
|
||
|
|
bool hasBumpmap, bool neighborHasBumpmap );
|
||
|
|
|
||
|
|
void AddBounceToRadial( radial_t *rad,
|
||
|
|
Vector const &pnt,
|
||
|
|
Vector2D const &coordmins, Vector2D const &coordmaxs,
|
||
|
|
Vector const light[NUM_BUMP_VECTS+1],
|
||
|
|
bool hasBumpmap, bool neighborHasBumpmap );
|
||
|
|
|
||
|
|
bool SampleRadial( radial_t *rad, Vector& pnt, Vector light[NUM_BUMP_VECTS+1], int bumpSampleCount );
|
||
|
|
|
||
|
|
radial_t *AllocateRadial( int facenum );
|
||
|
|
void FreeRadial( radial_t *rad );
|
||
|
|
|
||
|
|
bool SampleRadial( radial_t *rad, Vector& pnt, Vector light[NUM_BUMP_VECTS + 1], int bumpSampleCount );
|
||
|
|
radial_t *BuildPatchRadial( int facenum );
|
||
|
|
|
||
|
|
// utilities
|
||
|
|
bool FloatLess( float const& src1, float const& src2 );
|
||
|
|
|
||
|
|
#endif
|