Merge pull request #87 from prime-optimal/fix/metal-scalar-distance

phandasm · web-flow · commit 0826fb994516 · 2026-07-11T22:53:51.000Z
Fix shaders failing to compile with Metal renderer
diff --git a/data/gradient.effect b/data/gradient.effect
@@ -65,13 +65,13 @@ float4 PSSolid(VertInOut vert_in) : TARGET
 
 float4 PSGradient(VertGrad vert_in) : TARGET
 {
-    float lerp_t = saturate((distance(vert_in.tex.y, grad_center) - grad_offset) / grad_height);
+    float lerp_t = saturate((abs(vert_in.tex.y - grad_center) - grad_offset) / grad_height);
 	return lerp(color_base, color_crest, lerp_t);
 }
 
 float4 PSRange(VertGrad vert_in) : TARGET
 {
-    float ratio = 1.0 - saturate((distance(vert_in.tex.y, grad_center) - grad_offset) / grad_height);
+    float ratio = 1.0 - saturate((abs(vert_in.tex.y - grad_center) - grad_offset) / grad_height);
     if (ratio > range_middle)
         return color_base;  // Green
     else if (ratio < range_crest)

Original file line number	Diff line number	Diff line change
`@@ -65,13 +65,13 @@ float4 PSSolid(VertInOut vert_in) : TARGET`
`65`	`65`
`66`	`66`	`float4 PSGradient(VertGrad vert_in) : TARGET`
`67`	`67`	`{`
`68`		`- float lerp_t = saturate((distance(vert_in.tex.y, grad_center) - grad_offset) / grad_height);`
	`68`	`+ float lerp_t = saturate((abs(vert_in.tex.y - grad_center) - grad_offset) / grad_height);`
`69`	`69`	`return lerp(color_base, color_crest, lerp_t);`
`70`	`70`	`}`
`71`	`71`
`72`	`72`	`float4 PSRange(VertGrad vert_in) : TARGET`
`73`	`73`	`{`
`74`		`- float ratio = 1.0 - saturate((distance(vert_in.tex.y, grad_center) - grad_offset) / grad_height);`
	`74`	`+ float ratio = 1.0 - saturate((abs(vert_in.tex.y - grad_center) - grad_offset) / grad_height);`
`75`	`75`	`if (ratio > range_middle)`
`76`	`76`	`return color_base; // Green`
`77`	`77`	`else if (ratio < range_crest)`