[Bf-committers] GPU texture painting design doc

Antony Riakiotakis kalast at gmail.com
Wed Jun 20 18:02:10 CEST 2012


I did some profiling of my own. Looks like upload is not currently the
bottleneck. I am pasting the gprof output after an ultra paint-intensive
session.



-----------------------------------------------
index % time    self  children    called     name
[1]     15.8    0.07    0.90  103000+208919  <cycle 19 as a whole> [1]
                0.04    0.81      21             do_projectpaint_thread
<cycle 19> [4]
                0.00    0.08  246842+98310
nearest_point_in_tri_surface <cycle 19> [67]
                0.02    0.01   16258             GPU_default_lights <cycle
19> [133]
                0.01    0.00   41824             BLI_uvproject_from_view
<cycle 19> [325]
                0.00    0.00       9             project_paint_op <cycle
19> [828]
                0.00    0.00     124             GPU_enable_material <cycle
19> [1480]
                0.00    0.00    6491+6350        GPU_verify_image <cycle
19> [3067]
                0.00    0.00     226             project_bucket_iter_init
<cycle 19> [3476]
                0.00    0.00     124             imapaint_ibuf_rgb_get
<cycle 19> [3555]
-----------------------------------------------

-----------------------------------------------
                                  21             BLI_uvproject_from_view
<cycle 19> [325]
[4]     13.8    0.04    0.81      21         do_projectpaint_thread <cycle
19> [4]
                0.00    0.70      51/51          project_bucket_init [9]
                0.04    0.02  204244/204244      brush_painter_do_partial
[83]
                0.03    0.00  327313/327370      normalize_v3_v3 [139]
                0.02    0.00  211135/211135      do_projectpaint_draw [204]
                0.00    0.00  225082/412009
brush_painter_refresh_cache [2919]
                0.00    0.00  198160/642564      mul_v2_fl [2913]
                              192223
nearest_point_in_tri_surface <cycle 19> [67]
-----------------------------------------------
                0.08    0.76      24/24          zbufshadeDA_tile [3]
[5]     13.8    0.08    0.76      24         zbuffer_transp_shade [5]
                0.02    0.36  149371/149371      addtosamp_shr [18]
                0.00    0.27  159469/159469      shade_tra_samples [26]
                0.12    0.00  763472/858921      add_filt_fmask [52]
                0.00    0.00      24/24          zbuffer_abuf_render [1216]
                0.00    0.00      39/568017      BL_ConvertMesh(Mesh*,
Object*, KX_Scene*, KX_BlenderSceneConverter*) <cycle 29> [66]
                0.00    0.00    1433/3272        stats_background [3138]
                0.00    0.00      26/134         sky_tile [3551]
                0.00    0.00      18/33          shade_sample_initialize
[3732]
-----------------------------------------------
                0.01    0.27  242107/683541      shade_input_set_viewco [24]
                0.03    0.49  441434/683541      shade_input_do_shade [11]
[6]     13.1    0.04    0.76  683541         shade_material_loop [6]
                0.11    0.65  260525/260525      shade_lamp_loop [7]
                0.00    0.00  245234/245234      shade_input_init_material
[560]
                0.00    0.00  232094/232094      negate_v3_v3 [2931]
-----------------------------------------------
                0.11    0.65  260525/260525      shade_material_loop [6]
[7]     12.4    0.11    0.65  260525         shade_lamp_loop [7]
                0.16    0.46  241325/241325      do_material_tex [10]
                0.01    0.01   98763/98763       shade_one_light [213]
                0.01    0.00  210550/210550      sub_v3_v3v3 [345]
                0.00    0.00  107056/107056      mistfactor [2949]
                0.00    0.00  103417/295699      add_v3_v3 [2924]
-----------------------------------------------
                0.08    0.62     108/108         project_bucket_init [9]
[8]     11.4    0.08    0.62     108         project_paint_face_init [8]
                0.14    0.00  317868/319473      project_paint_uvpixel_mask
[46]
                0.12    0.02  251184/252651      project_paint_uvpixel_init
[50]
                0.04    0.02 1084653/1552970     undo_copy_tile [61]
                0.05    0.01  298694/298694
project_bucket_point_occluded [81]
                0.01    0.04  280339/280339      screen_px_from_persp [97]
                0.04    0.01  265699/268422      BLI_dlrbTree_search_prev
[95]
                0.00    0.04     200/200         project_bucket_clip_face
[123]
                0.00    0.03       5/5           uv_image_outset [129]
                0.00    0.03  370619/370619      IsectPoly2Df_twoside [156]
                0.01    0.00      74/74          normalize_v2_v2 [326]
                0.00    0.00      67/654         line_clip_rect2f [111]
                0.00    0.00    8183/1004600
isect_sweeping_sphere_tri_v3 [53]
                0.00    0.00    1538/265582      resolve_quad_uv [112]
                0.00    0.00    1680/1680        interp_weights_face_v3
[948]
                0.00    0.00    1891/1891        barycentric_weights [955]
                0.00    0.00     182/34021       BLI_uvproject_camera_info
[307]
                0.00    0.00      76/642         angle_quad_v3 [2732]
                0.00    0.00    2089/48155       invert_m4_m4 [2976]
                0.00    0.00    1479/1884        angle_poly_v3 [3208]
                0.00    0.00     176/176         pixel_bounds_array [3521]
                0.00    0.00      76/76          scale_quad [3597]
                0.00    0.00      25/264095      add_v2_v2v2 [2927]
                0.00    0.00      15/15          project_face_seams_init
[3866]
                0.00    0.00      15/15          pixel_bounds_uv [3865]
-----------------------------------------------
                0.00    0.70      51/51          do_projectpaint_thread
<cycle 19> [4]
[9]     11.4    0.00    0.70      51         project_bucket_init [9]
                0.08    0.62     108/108         project_paint_face_init [8]
-----------------------------------------------


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