[Bf-committers] GPU texture painting design doc
Campbell Barton
ideasman42 at gmail.com
Thu Jun 21 10:04:54 CEST 2012
Interesting, though this could be because how we measure the times differently.
rather then using a typical profiler I just disabled viewport-drawing
and updating the OpenGL texture.
Then timed a fairly long stroke created with grease pencil ---
with/without display updates disabled.
Even so my time could have been skewed by some driver/hardware blah
blah - or just the test case I ran.
On Wed, Jun 20, 2012 at 6:02 PM, Antony Riakiotakis <kalast at gmail.com> wrote:
> 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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--
- Campbell
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