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author | Clément Foucault <foucault.clem@gmail.com> | 2018-02-26 21:41:17 +0300 |
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committer | Clément Foucault <foucault.clem@gmail.com> | 2018-02-26 21:41:17 +0300 |
commit | 13261304a331b4cff37de477ddf19c915ed64b2c (patch) | |
tree | 3660f94436af2e4d44d8310247280ab456243543 /source/blender/editors/space_view3d/view3d_draw.c | |
parent | 0940e89e604d85d717f792b73e30e5e96a42e7c6 (diff) |
DRW: Add new Draw Manager OpenGL Context.
This separate context allows two things:
- It allows viewports in multi-windows configuration.
- F12 render can use this context in a separate thread and do a non-blocking render.
The downside is that the context cannot be used while rendering so a request to refresh a viewport will lock the UI. This is something that will be adressed in the future.
Under the hood what does that mean:
- Not adding more mess with VAOs management in gawain.
- Doing depth only draw for operators / selection needs to be done in an offscreen buffer.
- The 3D cursor "autodis" operator is still reading the backbuffer so we need to copy the result to it.
- All FBOs needed by the drawmanager must to be created/destroyed with its context active.
- We cannot use batches created for UI in the DRW context and vice-versa. There is a clear separation of resources that enables the use of safe multi-threading.
Diffstat (limited to 'source/blender/editors/space_view3d/view3d_draw.c')
-rw-r--r-- | source/blender/editors/space_view3d/view3d_draw.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/source/blender/editors/space_view3d/view3d_draw.c b/source/blender/editors/space_view3d/view3d_draw.c index 6e3a0883489..68996cdf906 100644 --- a/source/blender/editors/space_view3d/view3d_draw.c +++ b/source/blender/editors/space_view3d/view3d_draw.c @@ -2131,11 +2131,13 @@ ImBuf *ED_view3d_draw_offscreen_imbuf( } const bool own_ofs = (ofs == NULL); + DRW_opengl_context_enable(); if (own_ofs) { /* bind */ ofs = GPU_offscreen_create(sizex, sizey, use_full_sample ? 0 : samples, true, false, err_out); if (ofs == NULL) { + DRW_opengl_context_disable(); return NULL; } } @@ -2267,6 +2269,8 @@ ImBuf *ED_view3d_draw_offscreen_imbuf( GPU_offscreen_free(ofs); } + DRW_opengl_context_disable(); + if (ibuf->rect_float && ibuf->rect) IMB_rect_from_float(ibuf); |