Take mrlinds' suggestion in #40

dubois · dubois · commit fee645ebfcb8 · 2019-11-06T13:07:15.000-08:00
Change-Id: Id000b0154052c9f6bbd526ddad06a94ccb14a92f
diff --git a/UnitySDK/Assets/TiltBrush/Assets/Brushes/Basic/Embers/Embers.shader b/UnitySDK/Assets/TiltBrush/Assets/Brushes/Basic/Embers/Embers.shader
@@ -82,7 +82,8 @@ Category {
         float fft = (tex2Dlod(_FFTTex, float4(pos.y,0,0,0)).b)*2 + .1;
         dispVec.y += fft;
 #endif
-        return dispVec * kDecimetersToWorldUnits;
+        // Allow scaling to affect particle speed and distance in toolkit
+        return dispVec * kDecimetersToWorldUnits  * length(unity_ObjectToWorld[0].xyz);
       }
 
       v2f vert (ParticleVertexWithSpread_t v) {

Original file line number	Diff line number	Diff line change
`@@ -82,7 +82,8 @@ Category {`
`82`	`82`	`float fft = (tex2Dlod(_FFTTex, float4(pos.y,0,0,0)).b)*2 + .1;`
`83`	`83`	`dispVec.y += fft;`
`84`	`84`	`#endif`
`85`		`- return dispVec * kDecimetersToWorldUnits;`
	`85`	`+ // Allow scaling to affect particle speed and distance in toolkit`
	`86`	`+ return dispVec * kDecimetersToWorldUnits * length(unity_ObjectToWorld[0].xyz);`
`86`	`87`	`}`
`87`	`88`
`88`	`89`	`v2f vert (ParticleVertexWithSpread_t v) {`