Jeroen Bakker
d6525e8d13
This project moves the current UV/Image editor drawing to the draw manager.
Why would we do this:
**Performance**:
Current implementation would draw each texel per time. Multiple texels could be
drawn per pixel what would overwrite the previous result. You can notice this
when working with large textures. Repeat image drawing made this visible by
drawing for a small period of time and stop drawing the rest. Now the rendering
is fast and all repeated images are drawn.
**Alpha drawing**:
Current implementation would draw directly in display space. Giving incorrect
results when displaying alpha transparent images.
This addresses {T52680}, {T74709}, {T79518}
The image editor now can show emission only colors. See {D8234} for
examples.
**Current Limitations**
Using images that are larger than supported by your GPU are resized (eg larger
than 16000x16000 are resized to 8k). This leaves some blurring artifacts. It is
a low priority to add support back of displaying individual pixels of huge
images. There is a design task {T80113} with more detail.
**Implementation overview**
Introduced an Image Engine in the draw module. this engine is responsible for
drawing the texture in the main area of the UV/Image editor. The overlay engine
has a edit_uv overlay which is responsible to draw the UV's, shadows and
overlays specifically for the UV Image editor. The background + checker pattern
is drawn by the overlay_background.
The patch will allow us to share overlays between the 3d viewport and UV/Image
editor more easily. In most cases we just need to switch the `pos` with the `u`
attribute in the vertex shader.
The project can be activated in the user preferences as experimental features.
In a later commit this will be reversed.
Reviewed By: Clément Foucault
Differential Revision: https://developer.blender.org/D8234
99 lines
3.7 KiB
C++
99 lines
3.7 KiB
C++
/*
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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) 2008 Blender Foundation.
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* All rights reserved.
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*/
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/** \file
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* \ingroup spimage
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*/
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#pragma once
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/* internal exports only */
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struct ARegion;
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struct ARegionType;
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struct SpaceImage;
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struct bContext;
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struct bNodeTree;
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struct wmOperatorType;
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/* space_image.c */
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extern const char *image_context_dir[]; /* doc access */
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/* image_draw.c */
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void draw_image_main(const struct bContext *C, struct ARegion *region);
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void draw_image_main_helpers(const struct bContext *C, struct ARegion *region);
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void draw_image_cache(const struct bContext *C, struct ARegion *region);
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void draw_image_grease_pencil(struct bContext *C, bool onlyv2d);
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void draw_image_sample_line(struct SpaceImage *sima);
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/* image_ops.c */
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bool space_image_main_region_poll(struct bContext *C);
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bool space_image_view_center_cursor_poll(struct bContext *C);
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void IMAGE_OT_view_all(struct wmOperatorType *ot);
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void IMAGE_OT_view_pan(struct wmOperatorType *ot);
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void IMAGE_OT_view_selected(struct wmOperatorType *ot);
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void IMAGE_OT_view_center_cursor(struct wmOperatorType *ot);
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void IMAGE_OT_view_zoom(struct wmOperatorType *ot);
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void IMAGE_OT_view_zoom_in(struct wmOperatorType *ot);
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void IMAGE_OT_view_zoom_out(struct wmOperatorType *ot);
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void IMAGE_OT_view_zoom_ratio(struct wmOperatorType *ot);
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void IMAGE_OT_view_zoom_border(struct wmOperatorType *ot);
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#ifdef WITH_INPUT_NDOF
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void IMAGE_OT_view_ndof(struct wmOperatorType *ot);
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#endif
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void IMAGE_OT_new(struct wmOperatorType *ot);
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void IMAGE_OT_open(struct wmOperatorType *ot);
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void IMAGE_OT_match_movie_length(struct wmOperatorType *ot);
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void IMAGE_OT_replace(struct wmOperatorType *ot);
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void IMAGE_OT_reload(struct wmOperatorType *ot);
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void IMAGE_OT_save(struct wmOperatorType *ot);
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void IMAGE_OT_save_as(struct wmOperatorType *ot);
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void IMAGE_OT_save_sequence(struct wmOperatorType *ot);
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void IMAGE_OT_save_all_modified(struct wmOperatorType *ot);
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void IMAGE_OT_pack(struct wmOperatorType *ot);
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void IMAGE_OT_unpack(struct wmOperatorType *ot);
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void IMAGE_OT_invert(struct wmOperatorType *ot);
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void IMAGE_OT_resize(struct wmOperatorType *ot);
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void IMAGE_OT_cycle_render_slot(struct wmOperatorType *ot);
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void IMAGE_OT_clear_render_slot(struct wmOperatorType *ot);
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void IMAGE_OT_add_render_slot(struct wmOperatorType *ot);
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void IMAGE_OT_remove_render_slot(struct wmOperatorType *ot);
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void IMAGE_OT_sample(struct wmOperatorType *ot);
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void IMAGE_OT_sample_line(struct wmOperatorType *ot);
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void IMAGE_OT_curves_point_set(struct wmOperatorType *ot);
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void IMAGE_OT_change_frame(struct wmOperatorType *ot);
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void IMAGE_OT_read_viewlayers(struct wmOperatorType *ot);
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void IMAGE_OT_render_border(struct wmOperatorType *ot);
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void IMAGE_OT_clear_render_border(struct wmOperatorType *ot);
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void IMAGE_OT_tile_add(struct wmOperatorType *ot);
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void IMAGE_OT_tile_remove(struct wmOperatorType *ot);
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void IMAGE_OT_tile_fill(struct wmOperatorType *ot);
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/* image_panels.c */
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struct ImageUser *ntree_get_active_iuser(struct bNodeTree *ntree);
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void image_buttons_register(struct ARegionType *art);
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