Merge pull request #46 from shader-slang/lsp

Update demo code.

demos/generic.slang

@@ -81,8 +81,10 @@ void printMain()
     // all vector<float ,N> types conform to IMyHashable and thus valid to use in the call.
     printHash(v);
 
-    // The following line will result in a compile error because `int` does not
-    // conform to `IMyHashable`.
-    // printHash(1);
+    // The following lines will result in a compile error because `NonHashable` does not
+    // conform to `IMyHashable`:
+    //
+    // struct NonHashable{int data;}
+    // NonHashable obj = {0};
+    // printHash(obj);
 }
-

demos/image-from-url.slang

@@ -4,29 +4,16 @@ import playground;
 
 //! @myImage: URL("static/jeep.jpg")
 Texture2D<float4> myImage;
+
 float4 imageMain(uint2 dispatchThreadID, int2 screenSize)
 {
-    float2 size = float2(screenSize.x, screenSize.y);
-    float2 center = size / 2.0;
-
-    float2 pos = float2(dispatchThreadID.xy);
-
-    float stripSize = screenSize.x / 40;
-
-    float dist = distance(pos, center) + getTime() * 3;
-    float strip = dist / stripSize % 2.0;
-
     uint imageW;
     uint imageH;
     myImage.GetDimensions(imageW, imageH);
 
-    uint2 scaled = (uint2)floor(float2(dispatchThreadID.xy) / float2(screenSize) * float2(imageW, imageH));
+    uint2 scaled = (uint2)floor(float2(dispatchThreadID.xy) / screenSize.y * float2(imageW, imageH));
     uint2 flipped = uint2(scaled.x, imageH - scaled.y);
 
-    float4 imageColor = myImage[flipped] * 0.8;
-
-    if (strip < 1.0f)
-        return imageColor;
-    else
-        return float4(0.8f - imageColor.x, 0.8f - imageColor.y, 0.8f - imageColor.z, 1.0f);
+    float4 imageColor = myImage[flipped];
+    return imageColor;
 }