[62.CAD] Fix alpha of hatch msdf bug

Erfan-Ahmadi · Erfan-Ahmadi · commit b6d7f09b1716 · 2024-07-29T15:42:26.000+03:30
diff --git a/62_CAD/Hatch.h b/62_CAD/Hatch.h
@@ -19,7 +19,7 @@ using namespace nbl;
 
 enum class HatchFillPattern: uint32_t
 {
-	SOLID_FILL,
+	SOLID_FILL = 0,
 	CHECKERED,
 	DIAMONDS,
 	CROSS_HATCH,
diff --git a/62_CAD/fragment_shader.hlsl b/62_CAD/fragment_shader.hlsl
@@ -567,7 +567,7 @@ float4 main(PSInput input) : SV_TARGET
         {
             float3 msdfSample = msdfTextures.Sample(msdfSampler, float3(frac(input.position.xy / HatchFillMSDFSceenSpaceSize), float(textureId))).xyz;
             float msdf = nbl::hlsl::text::msdfDistance(msdfSample, MSDFPixelRange, HatchFillMSDFSceenSpaceSize / MSDFSize);
-            localAlpha = smoothstep(+globals.antiAliasingFactor / 2.0, -globals.antiAliasingFactor / 2.0f, msdf);
+            localAlpha *= smoothstep(+globals.antiAliasingFactor / 2.0, -globals.antiAliasingFactor / 2.0f, msdf);
         }
     }
     else if (objType == ObjectType::FONT_GLYPH) 

Original file line number	Diff line number	Diff line change
`@@ -19,7 +19,7 @@ using namespace nbl;`
`19`	`19`
`20`	`20`	`enum class HatchFillPattern: uint32_t`
`21`	`21`	`{`
`22`		`- SOLID_FILL,`
	`22`	`+ SOLID_FILL = 0,`
`23`	`23`	`CHECKERED,`
`24`	`24`	`DIAMONDS,`
`25`	`25`	`CROSS_HATCH,`
Original file line number	Diff line number	Diff line change
`@@ -567,7 +567,7 @@ float4 main(PSInput input) : SV_TARGET`
`567`	`567`	`{`
`568`	`568`	`float3 msdfSample = msdfTextures.Sample(msdfSampler, float3(frac(input.position.xy / HatchFillMSDFSceenSpaceSize), float(textureId))).xyz;`
`569`	`569`	`float msdf = nbl::hlsl::text::msdfDistance(msdfSample, MSDFPixelRange, HatchFillMSDFSceenSpaceSize / MSDFSize);`
`570`		`- localAlpha = smoothstep(+globals.antiAliasingFactor / 2.0, -globals.antiAliasingFactor / 2.0f, msdf);`
	`570`	`+ localAlpha *= smoothstep(+globals.antiAliasingFactor / 2.0, -globals.antiAliasingFactor / 2.0f, msdf);`
`571`	`571`	`}`
`572`	`572`	`}`
`573`	`573`	`else if (objType == ObjectType::FONT_GLYPH)`