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author | Campbell Barton <ideasman42@gmail.com> | 2021-01-28 13:16:17 +0300 |
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committer | Campbell Barton <ideasman42@gmail.com> | 2021-01-28 13:53:56 +0300 |
commit | 8948f73784cb818689ba38aa9ae5008eb3c8290b (patch) | |
tree | 2418b195afac4a14e81aec20bb5ab65ed01a1f9c /source/blender/gpu/intern/gpu_state.cc | |
parent | 51c8d53a7d0e1dfa151482420e2b19ae2ee10c9b (diff) |
Fix T81334: Python view-port drawing depth-test regression
Since 216d78687d2b9468b05fb598d1cef0b8424a40d2 the depth function
(glDepthFunc) was left in an undefined state for drawing callbacks that
use the `bgl` module.
This meant enabling depth-test from Python's bgl module also needed
to set the depth function (which previously wasn't necessary).
Set the depth function as part of GPU_bgl_start
Diffstat (limited to 'source/blender/gpu/intern/gpu_state.cc')
-rw-r--r-- | source/blender/gpu/intern/gpu_state.cc | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/source/blender/gpu/intern/gpu_state.cc b/source/blender/gpu/intern/gpu_state.cc index 407a8dd6e2b..e158601a25c 100644 --- a/source/blender/gpu/intern/gpu_state.cc +++ b/source/blender/gpu/intern/gpu_state.cc @@ -339,6 +339,20 @@ void GPU_bgl_start() /* Expected by many addons (see T80169, T81289). * This will reset the blend function. */ GPU_blend(GPU_BLEND_NONE); + + /* Equivalent of setting the depth func `glDepthFunc(GL_LEQUAL)` + * Needed since Python scripts may enable depth test. + * Without this block the depth test function is undefined. */ + { + eGPUDepthTest depth_test_real = GPU_depth_test_get(); + eGPUDepthTest depth_test_temp = GPU_DEPTH_LESS_EQUAL; + if (depth_test_real != depth_test_temp) { + GPU_depth_test(depth_test_temp); + state_manager.apply_state(); + GPU_depth_test(depth_test_real); + } + } + state_manager.apply_state(); state_manager.use_bgl = true; } |