Sergey Sharybin
08cea96ab0
This assumptions are now made: - Internally float buffers are always linear alpha-premul colors - Readers should worry about delivering float buffers with that assumptions. - There's an input image setting to say whether it's stored with straight/premul alpha on the disk. - Byte buffers are now assumed have straight alpha, readers should deliver straight alpha. Some implementation details: - Removed scene's color unpremultiply setting, which was very much confusing and was wrong for default settings. Now all renderers assumes to deliver premultiplied alpha. - IMB_buffer_byte_from_float will now linearize alpha when converting from buffer. - Sequencer's effects were changed to assume bytes have got straight alpha. Most of effects will work with bytes still, however for glow it was more tricky to avoid data loss, so there's a commented out glow implementation which converts byte buffer to floats first, operates on floats and returns bytes back. It's slower and not sure if it should actually be used -- who're using glow on alpha anyway? - Sequencer modifiers should also be working nice with straight bytes now. - GLSL preview will predivide float textures to make nice shading, shading with byte textures worked nice (GLSL was assuming straight alpha). - Blender Internal will set alpha=1 to the whole sky. The same happens in Cycles and there's no way to avoid this -- sky is neither straight nor premul and doesn't fit color pipeline well. - Straight alpha mode for render result was also eliminated. - Conversion to correct alpha need to be done before linearizing float buffer. - TIFF will now load and save files with proper alpha mode setting in file meta data header. - Remove Use Alpha from texture mapping and replaced with image datablock setting. Behaves much more predictable and clear from code point of view and solves possible regressions when non-premultiplied images were used as textures with ignoring alpha channel.
101 lines
3.2 KiB
C++
101 lines
3.2 KiB
C++
/*
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2007 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 LICENSE BLOCK *****
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*/
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/** \file blender/render/intern/include/render_result.h
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* \ingroup render
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*/
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#ifndef __RENDER_RESULT_H__
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#define __RENDER_RESULT_H__
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#define PASS_VECTOR_MAX 10000.0f
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#define RR_USE_MEM 0
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#define RR_USE_EXR 1
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#define RR_ALL_LAYERS NULL
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struct ImBuf;
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struct ListBase;
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struct Render;
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struct RenderData;
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struct RenderLayer;
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struct RenderResult;
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struct Scene;
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struct rcti;
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struct ColorManagedDisplaySettings;
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struct ColorManagedViewSettings;
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/* New */
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struct RenderResult *render_result_new(struct Render *re,
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struct rcti *partrct, int crop, int savebuffers, const char *layername);
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struct RenderResult *render_result_new_full_sample(struct Render *re,
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struct ListBase *lb, struct rcti *partrct, int crop, int savebuffers);
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struct RenderResult *render_result_new_from_exr(void *exrhandle, const char *colorspace, int predivide, int rectx, int recty);
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/* Merge */
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void render_result_merge(struct RenderResult *rr, struct RenderResult *rrpart);
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/* Free */
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void render_result_free(struct RenderResult *rr);
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void render_result_free_list(struct ListBase *lb, struct RenderResult *rr);
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/* Single Layer Render */
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void render_result_single_layer_begin(struct Render *re);
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void render_result_single_layer_end(struct Render *re);
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/* EXR Tile File Render */
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void render_result_exr_file_begin(struct Render *re);
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void render_result_exr_file_end(struct Render *re);
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void render_result_exr_file_merge(struct RenderResult *rr, struct RenderResult *rrpart);
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void render_result_exr_file_path(struct Scene *scene, const char *layname, int sample, char *filepath);
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int render_result_exr_file_read(struct Render *re, int sample);
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int render_result_exr_file_read_path(struct RenderResult *rr, struct RenderLayer *rl_single, const char *filepath);
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/* Combined Pixel Rect */
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struct ImBuf *render_result_rect_to_ibuf(struct RenderResult *rr, struct RenderData *rd);
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void render_result_rect_from_ibuf(struct RenderResult *rr, struct RenderData *rd,
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struct ImBuf *ibuf);
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void render_result_rect_fill_zero(struct RenderResult *rr);
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void render_result_rect_get_pixels(struct RenderResult *rr,
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unsigned int *rect, int rectx, int recty,
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const struct ColorManagedViewSettings *view_settings,
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const struct ColorManagedDisplaySettings *display_settings);
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#endif /* __RENDER_RESULT_H__ */
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