From bae1fb8c08ab5eb4d147a41405cd61eede1c0d34 Mon Sep 17 00:00:00 2001
From: lisyarus <lisyarus@gmail.com>
Date: Sat, 22 Jun 2024 01:16:51 +0300
Subject: [PATCH] Support overall primitive alpha in vecr::renderer

---
 libs/vecr/include/psemek/vecr/renderer.hpp | 1 +
 libs/vecr/source/renderer.cpp              | 1 +
 2 files changed, 2 insertions(+)

diff --git a/libs/vecr/include/psemek/vecr/renderer.hpp b/libs/vecr/include/psemek/vecr/renderer.hpp
index e984e1c1..6fcfc49b 100644
--- a/libs/vecr/include/psemek/vecr/renderer.hpp
+++ b/libs/vecr/include/psemek/vecr/renderer.hpp
@@ -13,6 +13,7 @@ namespace psemek::vecr
 	{
 		any mask = {};
 		float blur = 1.f;
+		float alpha = 1.f;
 		any_colorizer colorizer = {};
 		blend_mode blend = vecr::blend;
 	};
diff --git a/libs/vecr/source/renderer.cpp b/libs/vecr/source/renderer.cpp
index 8c877ca6..4015e79e 100644
--- a/libs/vecr/source/renderer.cpp
+++ b/libs/vecr/source/renderer.cpp
@@ -81,6 +81,7 @@ namespace psemek::vecr
 
 				auto color = colorize(primitive.colorizer, center, sample);
 				color[3] *= blur;
+				color[3] *= primitive.alpha;
 
 				canvas_(x, y) = gfx::to_coloru8(primitive.blend(gfx::to_colorf(canvas_(x, y)), color));
 			}