quakeforge/include/QF/scene/light.h
Bill Currie 2b879af3e1 Fix most of the hacks for clang
gcc didn't like a couple of the changes (rightly so: one was actually
incorrect), and the fix for qfcc I didn't think to suggest while working
with Emily.

The general CFLAGS etc fixes mostly required just getting the order of
operations right: check for attributes after setting the warnings flags,
though those needed some care for gcc as it began warning about main
wanting the const attribute.

Fixing the imui link errors required moving the ui functions and setup
to vulkan_lighting.c, which is really the only place they're used.
2023-08-11 18:29:30 +09:00

75 lines
2.2 KiB
C

/*
light.h
Entity management
Copyright (C) 2021 Bill Currie <bill@taniwha.org>
Author: Bill Currie <bill@taniwha.org>
Date: 2021/02/26
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
*/
#ifndef __QF_scene_light_h
#define __QF_scene_light_h
#include "QF/darray.h"
#include "QF/qtypes.h"
#include "QF/simd/types.h"
struct mod_brush_s;
#define NumStyles 64
#define LM_LINEAR 0 // light - dist (or radius + dist if -ve)
#define LM_INVERSE 1 // distFactor1 * light / dist
#define LM_INVERSE2 2 // distFactor2 * light / (dist * dist)
#define LM_INFINITE 3 // light
#define LM_AMBIENT 4 // light
#define LM_INVERSE3 5 // distFactor2 * light / (dist + distFactor2)**2
typedef struct light_s {
vec4f_t color;
vec4f_t position;
vec4f_t direction;
vec4f_t attenuation;
} light_t;
typedef struct lightingdata_s {
struct set_s *sun_pvs;
// A fat PVS of leafs visible from visible leafs so hidden lights can
// illuminate the leafs visible to the player
struct set_s *pvs;
struct mleaf_s *leaf; // the last leaf used to generate the pvs
struct scene_s *scene;
} lightingdata_t;
lightingdata_t *Light_CreateLightingData (struct scene_s *scene);
void Light_DestroyLightingData (lightingdata_t *ldata);
void Light_ClearLights (lightingdata_t *ldata);
void Light_AddLight (lightingdata_t *ldata, const light_t *light,
uint32_t style);
void Light_EnableSun (lightingdata_t *ldata);
void Light_DecayLights (lightingdata_t *ldata, float frametime,
double realtime);
void Light_LinkLight (lightingdata_t *ldata, uint32_t entid);
#endif//__QF_scene_light_h