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blender-archive/source/blender/render/intern/include/volumetric.h

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* Volume rendering This is an initial commit to get it in SVN and make it easier to work on. Don't expect it to work perfectly, it's still in development and there's plenty of work still needing to be done. And so no I'm not very interested in hearing bug reports or feature requests at this stage :) There's some info on this, and a todo list at: http://mke3.net/weblog/volume-rendering/ Right now I'm trying to focus on getting shading working correctly (there's currently a problem in which 'surfaces' of the volume facing towards or away from light sources are getting shaded differently to how they should be), then I'll work on integration issues, like taking materials behind the volume into account, blending with alpha, etc. You can do simple testing though, mapping textures to density or emission on a cube with volume material.
2008-09-22 01:51:24 +00:00
/**
*
* ***** 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., 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.
*
cleaned some code and split volume precaching into a new file
2008-11-15 04:16:46 +00:00
* Contributor(s): Matt Ebb.
* Volume rendering This is an initial commit to get it in SVN and make it easier to work on. Don't expect it to work perfectly, it's still in development and there's plenty of work still needing to be done. And so no I'm not very interested in hearing bug reports or feature requests at this stage :) There's some info on this, and a todo list at: http://mke3.net/weblog/volume-rendering/ Right now I'm trying to focus on getting shading working correctly (there's currently a problem in which 'surfaces' of the volume facing towards or away from light sources are getting shaded differently to how they should be), then I'll work on integration issues, like taking materials behind the volume into account, blending with alpha, etc. You can do simple testing though, mapping textures to density or emission on a cube with volume material.
2008-09-22 01:51:24 +00:00
*
* ***** END GPL LICENSE BLOCK *****
*/
cleaned some code and split volume precaching into a new file
2008-11-15 04:16:46 +00:00
float vol_get_stepsize(struct ShadeInput *shi, int context);
float vol_get_density(struct ShadeInput *shi, float *co);
* a few more small cleanups
2009-08-20 08:18:54 +00:00
void vol_get_scattering(ShadeInput *shi, float *scatter_col, float *co, float stepsize, float density);
cleaned some code and split volume precaching into a new file
2008-11-15 04:16:46 +00:00
Volume rendering * Fixed an old problem where if both the camera and a solid surface were inside a volume, the volume wouldn't attenuate in front of the surface (was visible in the blender conference art festival clouds animation: http://mke3.net/blender/devel/rendering/volumetrics/vol_shade_cam_inside.mov * Initial support for refracting solids inside volumes. I might be able to make this work better, but not sure at the moment. It's a bit dodgy, limited by the code that does the recursive ray shading - it's really not set up for this kind of thing and could use a refactor very much.
2008-12-31 05:08:04 +00:00
void shade_volume_outside(ShadeInput *shi, ShadeResult *shr);
void shade_volume_inside(ShadeInput *shi, ShadeResult *shr);
void shade_volume_shadow(struct ShadeInput *shi, struct ShadeResult *shr, struct Isect *last_is);
cleaned some code and split volume precaching into a new file
2008-11-15 04:16:46 +00:00
#define STEPSIZE_VIEW 0
#define STEPSIZE_SHADE 1
#define VOL_IS_BACKFACE 1
#define VOL_IS_SAMEMATERIAL 2
#define VOL_BOUNDS_DEPTH 0
Volume rendering * Fixed an old problem where if both the camera and a solid surface were inside a volume, the volume wouldn't attenuate in front of the surface (was visible in the blender conference art festival clouds animation: http://mke3.net/blender/devel/rendering/volumetrics/vol_shade_cam_inside.mov * Initial support for refracting solids inside volumes. I might be able to make this work better, but not sure at the moment. It's a bit dodgy, limited by the code that does the recursive ray shading - it's really not set up for this kind of thing and could use a refactor very much.
2008-12-31 05:08:04 +00:00
#define VOL_BOUNDS_SS 1
#define VOL_SHADE_OUTSIDE 0
2.5 - Warning cleanups (for mingw+scons) Also, made the Outliner's horizontal scrollbar work better for keymaps view. It's still using an approximation of the width, but at least you can scroll now.
2009-08-26 00:38:43 +00:00
#define VOL_SHADE_INSIDE 1
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