Ton Roosendaal
e868f223dc
Full log: http://www.blender3d.org/cms/Irregular_Shadow_Buffe.785.0.html In short: this is a shadow buffer approach that always results in crispy shadows, independent of lamp buffer size or zoom level. This shadow buffer system also supports transparent shadow. This is part of work on refreshing Shadow Buffers in Blender. You now can choose of two types (Classical, Irregular). More types will follow. Also quality issues for Classical shadow buffers are going to be reviewed, especially to solve the lousy Biasing. For the CVS log record; it is based on articles: Gregory Johnson et al, University of Texas, Austin. (Regular grid method). Timo Aila and Samuli Laine, Helsinki University of Technology. (BSP method).
125 lines
3.3 KiB
C++
125 lines
3.3 KiB
C++
/**
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* $Id$
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*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* The Original Code is Copyright (C) 2006 by Blender Foundation
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL/BL DUAL LICENSE BLOCK *****
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*/
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#ifndef RE_SHADER_EXT_H
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#define RE_SHADER_EXT_H
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/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
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/* this include is for shading and texture exports */
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/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
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/* localized texture result data */
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/* note; tr tg tb ta has to remain in this order */
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typedef struct TexResult {
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float tin, tr, tg, tb, ta;
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int talpha;
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float *nor;
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} TexResult;
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/* localized shade result data */
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typedef struct ShadeResult
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{
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float combined[4];
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float col[4];
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float alpha;
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float diff[3];
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float spec[3];
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float shad[3];
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float ao[3];
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float ray[3];
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float nor[3];
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float winspeed[4];
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} ShadeResult;
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/* localized renderloop data */
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typedef struct ShadeInput
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{
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struct Material *mat;
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struct VlakRen *vlr;
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float co[3];
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/* copy from material, keep synced so we can do memcopy */
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/* current size: 23*4 */
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float r, g, b;
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float specr, specg, specb;
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float mirr, mirg, mirb;
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float ambr, ambb, ambg;
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float amb, emit, ang, spectra, ray_mirror;
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float alpha, refl, spec, zoffs, add;
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float translucency;
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/* end direct copy from material */
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/* individual copies: */
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int har;
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float layerfac;
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/* base material mode (OR-ed result of entire node tree) */
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int mode;
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/* texture coordinates */
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float lo[3], gl[3], uv[3], ref[3], orn[3], winco[3], sticky[3], vcol[3], rad[3];
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float vn[3], vno[3], facenor[3], view[3], refcol[4], displace[3];
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float strand, tang[3], stress, winspeed[4];
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/* dx/dy OSA coordinates */
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float dxco[3], dyco[3];
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float dxlo[3], dylo[3], dxgl[3], dygl[3], dxuv[3], dyuv[3];
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float dxref[3], dyref[3], dxorn[3], dyorn[3];
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float dxno[3], dyno[3], dxview, dyview;
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float dxlv[3], dylv[3];
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float dxwin[3], dywin[3];
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float dxsticky[3], dysticky[3];
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float dxrefract[3], dyrefract[3];
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float dxstrand, dystrand;
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int xs, ys; /* pixel to be rendered */
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short do_preview; /* for nodes, in previewrender */
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short thread;
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short osatex, puno;
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int mask;
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int depth; /* 1 or larger on raytrace shading */
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int facenr;
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unsigned int lay;
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} ShadeInput;
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/* node shaders... */
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struct Tex;
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int multitex_ext(struct Tex *tex, float *texvec, float *dxt, float *dyt, int osatex, struct TexResult *texres);
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/* shaded view */
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struct Render;
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void RE_shade_external(struct Render *re, struct ShadeInput *shi, struct ShadeResult *shr);
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#endif /* RE_SHADER_EXT_H */
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