From 231ec09a767e6328c7d1af7171e27446275763ae Mon Sep 17 00:00:00 2001
From: Marcos <m.reifonas@gmail.com>
Date: Mon, 13 Jul 2026 18:29:33 +0000
Subject: [PATCH] =?UTF-8?q?=F0=9F=9A=80=20Auto-deploy:=20BrainWind=20atual?=
 =?UTF-8?q?izado=20em=2013/07/2026=2018:29:33?=
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---
 app/src/components/SceneCanvas.tsx |  1 +
 app/src/lib/canvas-capture.ts      | 10 +++++++---
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/app/src/components/SceneCanvas.tsx b/app/src/components/SceneCanvas.tsx
index b554703..fca7dc9 100644
--- a/app/src/components/SceneCanvas.tsx
+++ b/app/src/components/SceneCanvas.tsx
@@ -41,6 +41,7 @@ function CanvasInner({ fallback: _, shadows, ...canvasProps }: SceneCanvasProps)
   return (
     <Canvas
       frameloop="demand"
+      gl={{ preserveDrawingBuffer: true }}
       {...canvasProps}
       shadows={shadowConfig}
       onCreated={(state) => {
diff --git a/app/src/lib/canvas-capture.ts b/app/src/lib/canvas-capture.ts
index 5a20676..ce1f952 100644
--- a/app/src/lib/canvas-capture.ts
+++ b/app/src/lib/canvas-capture.ts
@@ -73,9 +73,8 @@ export async function captureCanvasImage(
     outW = Math.round((outH / srcH) * srcW);
   }
 
-  if (outW === srcW && outH === srcH) {
-    return canvasToDataURL(canvas, format, quality);
-  }
+  // Removido o short-circuit (outW === srcW) para forçar a passagem pelo canvas 2D
+  // e garantir que o fundo transparente seja preenchido de branco.
 
   const off = document.createElement('canvas');
   off.width = outW;
@@ -85,6 +84,11 @@ export async function captureCanvasImage(
 
   ctx.imageSmoothingEnabled = true;
   ctx.imageSmoothingQuality = 'high';
+  
+  // Preencher fundo com branco para evitar preto em áreas transparentes (especialmente em JPEGs ou PDFs)
+  ctx.fillStyle = '#ffffff';
+  ctx.fillRect(0, 0, outW, outH);
+  
   ctx.drawImage(canvas, 0, 0, outW, outH);
 
   return off.toDataURL(`image/${format}`, quality);