Enhance rendernode example with opacity support

The opacity is already animated in the QML scene but enabling
blending and using inheritedOpacity() was not done. Until now.

Change-Id: Iaaf50c20302e29db85c5dfaeaab4d069cb18714e
Reviewed-by: Andy Nichols <andy.nichols@qt.io>

1 files changed, 4 insertions, 3 deletions

diff --git a/examples/quick/scenegraph/rendernode/shader.hlsl b/examples/quick/scenegraph/rendernode/shader.hlsl
index 8b9b9ff9d8..f300fe7aa5 100644
--- a/examples/quick/scenegraph/rendernode/shader.hlsl
+++ b/examples/quick/scenegraph/rendernode/shader.hlsl
@@ -2,15 +2,16 @@ cbuffer ConstantBuffer : register(b0)
 {
         float4x4 modelview;
         float4x4 projection;
+        float opacity;
 };
 
 struct PSInput
 {
         float4 position : SV_POSITION;
-        float4 color : COLOR;
+        float3 color : COLOR;
 };
 
-PSInput VS_Simple(float4 position : POSITION, float4 color : COLOR)
+PSInput VS_Simple(float4 position : POSITION, float3 color : COLOR)
 {
         PSInput result;
 
@@ -23,5 +24,5 @@ PSInput VS_Simple(float4 position : POSITION, float4 color : COLOR)
 
 float4 PS_Simple(PSInput input) : SV_TARGET
 {
-        return input.color;
+        return float4(input.color, 1.0) * opacity;
 }