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Changed Subtract blend mode of Forward+ and Mobile renderers to match behaviour of the Godot 3 and Compatibility renderers

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The OpenGL implementation has used GL_FUNC_REVERSE_SUBTRACT for a long time, but the new RenderingDevice abstraction used by the Vulkan renderers had been mistakenly set to BLEND_OP_SUBTRACT instead of BLEND_OP_REVERSE_SUBTRACT.

Fixes #77448
This commit is contained in:
Allen Pestaluky
2023-05-26 10:50:35 -04:00
parent d984ad64d4
commit 4e19f34856
4 changed files with 8 additions and 8 deletions
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4
servers/rendering/renderer_rd/renderer_canvas_render_rd.cpp
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@@ -2121,8 +2121,8 @@ void RendererCanvasRenderRD::CanvasShaderData::set_code(const String &p_code) {
} break;
case BLEND_MODE_SUB: {
attachment.enable_blend = true;
attachment.alpha_blend_op = RD::BLEND_OP_SUBTRACT;
attachment.color_blend_op = RD::BLEND_OP_SUBTRACT;
attachment.alpha_blend_op = RD::BLEND_OP_REVERSE_SUBTRACT;
attachment.color_blend_op = RD::BLEND_OP_REVERSE_SUBTRACT;
attachment.src_color_blend_factor = RD::BLEND_FACTOR_SRC_ALPHA;
attachment.dst_color_blend_factor = RD::BLEND_FACTOR_ONE;
attachment.src_alpha_blend_factor = RD::BLEND_FACTOR_SRC_ALPHA;