Brecht Van Lommel
2262d0a45a
of polygons, to avoid shadow flicker between frames. Added some code that makes it possible to generate APixbuf's from strands.
103 lines
3.0 KiB
C++
103 lines
3.0 KiB
C++
/*
|
|
* $Id$
|
|
*
|
|
* ***** 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: none of this file.
|
|
*
|
|
* Contributor(s): Brecht Van Lommel.
|
|
*
|
|
* ***** END GPL/BL DUAL LICENSE BLOCK *****
|
|
*/
|
|
|
|
#ifndef STRAND_H
|
|
#define STRAND_H
|
|
|
|
struct StrandVert;
|
|
struct StrandRen;
|
|
struct StrandBuffer;
|
|
struct ShadeSample;
|
|
struct StrandPart;
|
|
struct Render;
|
|
struct RenderPart;
|
|
struct RenderBuckets;
|
|
struct RenderPrimitiveIterator;
|
|
struct ZSpan;
|
|
struct ObjectInstanceRen;
|
|
|
|
typedef struct StrandPoint {
|
|
/* position within segment */
|
|
float t;
|
|
|
|
/* camera space */
|
|
float co[3];
|
|
float nor[3];
|
|
float tan[3];
|
|
float strandco;
|
|
float width;
|
|
|
|
/* derivatives */
|
|
float dtco[3], dsco[3];
|
|
float dtstrandco;
|
|
|
|
/* outer points */
|
|
float co1[3], co2[3];
|
|
float hoco1[4], hoco2[4];
|
|
float zco1[3], zco2[3];
|
|
int clip1, clip2;
|
|
|
|
/* screen space */
|
|
float hoco[4];
|
|
float x, y;
|
|
|
|
/* simplification */
|
|
float alpha;
|
|
} StrandPoint;
|
|
|
|
typedef struct StrandSegment {
|
|
struct StrandVert *v[4];
|
|
struct StrandRen *strand;
|
|
struct StrandBuffer *buffer;
|
|
struct ObjectInstanceRen *obi;
|
|
float sqadaptcos;
|
|
|
|
StrandPoint point1, point2;
|
|
int shaded;
|
|
} StrandSegment;
|
|
|
|
void strand_eval_point(StrandSegment *sseg, StrandPoint *spoint);
|
|
void render_strand_segment(struct Render *re, float winmat[][4], struct StrandPart *spart, struct ZSpan *zspan, int totzspan, StrandSegment *sseg);
|
|
void project_strands(Render *re, void (*projectfunc)(float *, float mat[][4], float *), int do_pano, int do_buckets);
|
|
|
|
struct RenderBuckets *init_buckets(struct Render *re);
|
|
void add_buckets_primitive(struct RenderBuckets *buckets, float *min, float *max, void *prim);
|
|
void free_buckets(struct RenderBuckets *buckets);
|
|
void project_hoco_to_bucket(struct RenderBuckets *buckets, float *hoco, float *bucketco);
|
|
|
|
struct RenderPrimitiveIterator *init_primitive_iterator(struct Render *re, struct RenderBuckets *buckets, struct RenderPart *pa);
|
|
void *next_primitive_iterator(struct RenderPrimitiveIterator *iter);
|
|
void free_primitive_iterator(struct RenderPrimitiveIterator *iter);
|
|
|
|
#endif
|
|
|