diff options
| author | Clément Foucault <foucault.clem@gmail.com> | 2020-11-05 16:12:02 +0300 |
|---|---|---|
| committer | Clément Foucault <foucault.clem@gmail.com> | 2020-11-05 20:00:27 +0300 |
| commit | 15eec7f8b985852219e842ef434f80b6cf9ed165 (patch) | |
| tree | 5d61f8fd422a277730da039f741953a128b0370e /source/blender/gpu | |
| parent | 4988f5f39ca2819516a487019008fb7e0dc28b28 (diff) | |
Fix T80842 Grease Pencil: Subtract mode is not working as expected
The blend equation was not set correctly inside the GL Module
since the refactor.
Diffstat (limited to 'source/blender/gpu')
| -rw-r--r-- | source/blender/gpu/opengl/gl_state.cc | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/source/blender/gpu/opengl/gl_state.cc b/source/blender/gpu/opengl/gl_state.cc index 3a474da8b8e..5483f889a8a 100644 --- a/source/blender/gpu/opengl/gl_state.cc +++ b/source/blender/gpu/opengl/gl_state.cc @@ -437,6 +437,13 @@ void GLStateManager::set_blend(const eGPUBlend value) } } + if (value == GPU_BLEND_SUBTRACT) { + glBlendEquation(GL_FUNC_REVERSE_SUBTRACT); + } + else { + glBlendEquation(GL_FUNC_ADD); + } + /* Always set the blend function. This avoid a rendering error when blending is disabled but * GPU_BLEND_CUSTOM was used just before and the frame-buffer is using more than 1 color target. */ |