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Fix 110976: Sequencer Scope Artifacts on NVIDIA 30/40 Series

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This PR fixes an issue with the NVIDIA 3000/4000 series cards. The cause
might be that when blending is turned off and the fragment output has an alpha
of 0.0 the fragment might be discarded. This is a guess of course.

By setting the Alpha to 1.0 for scopes and enabling alpha blending when
drawing the meta data text seems to fix the issue.

Fixes #110976

Pull Request: https://projects.blender.org/blender/blender/pulls/112665
This commit is contained in:
Jeroen Bakker
2023-09-26 17:29:59 +02:00
parent 9c20a29259
commit 4a78d7dc4c
2 changed files with 5 additions and 0 deletions
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1
source/blender/editors/space_sequencer/sequencer_preview_draw.cc
View File

@@ -197,6 +197,7 @@ static ImBuf *sequencer_make_scope(Scene *scene, ImBuf *ibuf, ImBuf *(*make_scop
display_ibuf, &scene->view_settings, &scene->display_settings);
scope = make_scope_fn(display_ibuf);
IMB_rectfill_alpha(scope, 1.0f);
IMB_freeImBuf(display_ibuf);

4
source/blender/editors/util/ed_draw.cc
View File

@@ -869,6 +869,7 @@ void ED_region_image_metadata_draw(
GPUVertFormat *format = immVertexFormat();
uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
immBindBuiltinProgram(GPU_SHADER_3D_UNIFORM_COLOR);
GPU_blend(GPU_BLEND_ALPHA);
immUniformThemeColor(TH_METADATA_BG);
immRectf(pos, rect.xmin, rect.ymin, rect.xmax, rect.ymax);
immUnbindProgram();
@@ -880,6 +881,7 @@ void ED_region_image_metadata_draw(
metadata_draw_imbuf(ibuf, &rect, blf_mono_font, true);
BLF_disable(blf_mono_font, BLF_CLIPPING);
GPU_blend(GPU_BLEND_NONE);
}
/* *** lower box*** */
@@ -894,6 +896,7 @@ void ED_region_image_metadata_draw(
GPUVertFormat *format = immVertexFormat();
uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
immBindBuiltinProgram(GPU_SHADER_3D_UNIFORM_COLOR);
GPU_blend(GPU_BLEND_ALPHA);
immUniformThemeColor(TH_METADATA_BG);
immRectf(pos, rect.xmin, rect.ymin, rect.xmax, rect.ymax);
immUnbindProgram();
@@ -905,6 +908,7 @@ void ED_region_image_metadata_draw(
metadata_draw_imbuf(ibuf, &rect, blf_mono_font, false);
BLF_disable(blf_mono_font, BLF_CLIPPING);
GPU_blend(GPU_BLEND_NONE);
}
GPU_matrix_pop();