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/*
* $Id$
*
* ***** BEGIN GPL 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.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2006 Blender Foundation
* All rights reserved.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/render/intern/include/shading.h
* \ingroup render
*/
struct ShadeInput;
struct ShadeResult;
struct RenderPart;
struct RenderLayer;
struct PixStr;
struct LampRen;
struct VlakRen;
struct StrandSegment;
struct StrandPoint;
struct ObjectInstanceRen;
struct Isect;
/* shadeinput.c */
#define RE_MAX_OSA 16
/* needed to calculate shadow and AO for an entire pixel */
typedef struct ShadeSample {
int tot; /* amount of shi in use, can be 1 for not FULL_OSA */
RenderLayer *rlpp[RE_MAX_OSA]; /* fast lookup from sample to renderlayer (fullsample buf) */
/* could be malloced once */
ShadeInput shi[RE_MAX_OSA];
ShadeResult shr[RE_MAX_OSA];
} ShadeSample;
/* also the node shader callback */
void shade_material_loop(struct ShadeInput *shi, struct ShadeResult *shr);
void shade_volume_loop(struct ShadeInput *shi, struct ShadeResult *shr);
void shade_input_set_triangle_i(struct ShadeInput *shi, struct ObjectInstanceRen *obi, struct VlakRen *vlr, short i1, short i2, short i3);
void shade_input_set_triangle(struct ShadeInput *shi, volatile int obi, volatile int facenr, int normal_flip);
void shade_input_copy_triangle(struct ShadeInput *shi, struct ShadeInput *from);
void shade_input_calc_viewco(struct ShadeInput *shi, float x, float y, float z, float view[3], float *dxyview, float *co, float *dxco, float *dyco);
void shade_input_set_viewco(struct ShadeInput *shi, float x, float y, float sx, float sy, float z);
void shade_input_set_uv(struct ShadeInput *shi);
void shade_input_set_normals(struct ShadeInput *shi);
void shade_input_set_vertex_normals(struct ShadeInput *shi);
void shade_input_flip_normals(struct ShadeInput *shi);
void shade_input_set_shade_texco(struct ShadeInput *shi);
void shade_input_set_strand(struct ShadeInput *shi, struct StrandRen *strand, struct StrandPoint *spoint);
void shade_input_set_strand_texco(struct ShadeInput *shi, struct StrandRen *strand, struct StrandVert *svert, struct StrandPoint *spoint);
void shade_input_do_shade(struct ShadeInput *shi, struct ShadeResult *shr);
void shade_input_init_material(struct ShadeInput *shi);
void shade_input_initialize(struct ShadeInput *shi, struct RenderPart *pa, struct RenderLayer *rl, int sample);
void shade_sample_initialize(struct ShadeSample *ssamp, struct RenderPart *pa, struct RenderLayer *rl);
void shade_samples_do_AO(struct ShadeSample *ssamp);
void shade_samples_fill_with_ps(struct ShadeSample *ssamp, struct PixStr *ps, int x, int y);
int shade_samples(struct ShadeSample *ssamp, struct PixStr *ps, int x, int y);
void vlr_set_uv_indices(struct VlakRen *vlr, int *i1, int *i2, int *i3);
void calc_R_ref(struct ShadeInput *shi);
/* shadeoutput. */
void shade_lamp_loop(struct ShadeInput *shi, struct ShadeResult *shr);
void shade_color(struct ShadeInput *shi, ShadeResult *shr);
void ambient_occlusion(struct ShadeInput *shi);
void environment_lighting_apply(struct ShadeInput *shi, struct ShadeResult *shr);
ListBase *get_lights(struct ShadeInput *shi);
float lamp_get_visibility(struct LampRen *lar, const float co[3], float lv[3], float *dist);
void lamp_get_shadow(struct LampRen *lar, ShadeInput *shi, float inp, float shadfac[4], int do_real);
float fresnel_fac(float *view, float *vn, float fresnel, float fac);
/* rayshade.c */
extern void shade_ray(struct Isect *is, struct ShadeInput *shi, struct ShadeResult *shr);
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