Brecht Van Lommel
25a434fd25
=============================== - One shadowbuffer per thread. - Added more break tests in shadow buffer code. - Removed R.clipcrop global, solution is not nice yet, but at least threadsafe. - Fixed bug in strand render shadow buffer code.
118 lines
3.6 KiB
C++
118 lines
3.6 KiB
C++
/*
|
|
* shadbuf_ext.h
|
|
*
|
|
* $Id$
|
|
*
|
|
* ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
|
|
*
|
|
* 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. The Blender
|
|
* Foundation also sells licenses for use in proprietary software under
|
|
* the Blender License. See http://www.blender.org/BL/ for information
|
|
* about this.
|
|
*
|
|
* 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 the Free Software Foundation,
|
|
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*
|
|
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
|
|
* All rights reserved.
|
|
*
|
|
* The Original Code is: all of this file.
|
|
*
|
|
* Contributor(s): none yet.
|
|
*
|
|
* ***** END GPL/BL DUAL LICENSE BLOCK *****
|
|
*/
|
|
|
|
#ifndef SHADBUF_EXT_H
|
|
#define SHADBUF_EXT_H
|
|
|
|
#include "render_types.h"
|
|
|
|
struct ObjectRen;
|
|
|
|
/**
|
|
* Calculates shadowbuffers for a vector of shadow-giving lamps
|
|
* @param lar The vector of lamps
|
|
*/
|
|
void makeshadowbuf(struct Render *re, LampRen *lar);
|
|
void freeshadowbuf(struct LampRen *lar);
|
|
|
|
void threaded_makeshadowbufs(struct Render *re);
|
|
|
|
/**
|
|
* Determines the shadow factor for a face and lamp. There is some
|
|
* communication with global variables here.
|
|
* @returns The shadow factors: 1.0 for no shadow, 0.0 for complete
|
|
* shadow.
|
|
* @param shb The shadowbuffer to find the shadow factor in.
|
|
* @param inp The inproduct between viewvector and ?
|
|
*
|
|
*/
|
|
float testshadowbuf(struct ShadBuf *shb, float *rco, float *dxco, float *dyco, float inp);
|
|
|
|
/**
|
|
* Determines the shadow factor for lamp <lar>, between <p1>
|
|
* and <p2>. (Which CS?)
|
|
*/
|
|
float shadow_halo(LampRen *lar, float *p1, float *p2);
|
|
|
|
/**
|
|
* Irregular shadowbuffer
|
|
*/
|
|
|
|
struct MemArena;
|
|
struct APixstr;
|
|
|
|
void ISB_create(RenderPart *pa, struct APixstr *apixbuf);
|
|
void ISB_free(RenderPart *pa);
|
|
float ISB_getshadow(ShadeInput *shi, ShadBuf *shb);
|
|
|
|
/* data structures have to be accessible both in camview(x, y) as in lampview(x, y) */
|
|
/* since they're created per tile rendered, speed goes over memory requirements */
|
|
|
|
|
|
/* buffer samples, allocated in camera buffer and pointed to in lampbuffer nodes */
|
|
typedef struct ISBSample {
|
|
float zco[3]; /* coordinate in lampview projection */
|
|
short *shadfac; /* initialized zero = full lighted */
|
|
int obi; /* object for face lookup */
|
|
int facenr; /* index in faces list */
|
|
} ISBSample;
|
|
|
|
/* transparent version of buffer sample */
|
|
typedef struct ISBSampleA {
|
|
float zco[3]; /* coordinate in lampview projection */
|
|
short *shadfac; /* NULL = full lighted */
|
|
int obi; /* object for face lookup */
|
|
int facenr; /* index in faces list */
|
|
struct ISBSampleA *next; /* in end, we want the first items to align with ISBSample */
|
|
} ISBSampleA;
|
|
|
|
/* used for transparent storage only */
|
|
typedef struct ISBShadfacA {
|
|
struct ISBShadfacA *next;
|
|
int obi;
|
|
int facenr;
|
|
float shadfac;
|
|
} ISBShadfacA;
|
|
|
|
/* What needs to be stored to evaluate shadow, for each thread in ShadBuf */
|
|
typedef struct ISBData {
|
|
short *shadfacs; /* simple storage for solid only */
|
|
ISBShadfacA **shadfaca;
|
|
struct MemArena *memarena;
|
|
int minx, miny, rectx, recty; /* copy from part disprect */
|
|
} ISBData;
|
|
|
|
#endif /* SHADBUF_EXT_H */
|
|
|