renderer: faster Tess_SurfacePolychain() with VectorNormalizeFast() in R_CalcTangents()

illwieckz · illwieckz · commit 39c25ac577ef · 2025-09-30T17:51:06.000+02:00
diff --git a/src/engine/renderer/tr_main.cpp b/src/engine/renderer/tr_main.cpp
@@ -94,8 +94,8 @@ void R_CalcTangents( vec3_t tangent, vec3_t binormal,
 	binormal[1] = dtx[0] * dpy[1] - dpx[1] * dty[0];
 	binormal[2] = dtx[0] * dpy[2] - dpx[2] * dty[0];
 
-	VectorNormalize( tangent );
-	VectorNormalize( binormal );
+	VectorNormalizeFast( tangent );
+	VectorNormalizeFast( binormal );
 }
 
 void R_CalcTangents( vec3_t tangent, vec3_t binormal,

Original file line number	Diff line number	Diff line change
`@@ -94,8 +94,8 @@ void R_CalcTangents( vec3_t tangent, vec3_t binormal,`
`94`	`94`	`binormal[1] = dtx[0] * dpy[1] - dpx[1] * dty[0];`
`95`	`95`	`binormal[2] = dtx[0] * dpy[2] - dpx[2] * dty[0];`
`96`	`96`
`97`		`- VectorNormalize( tangent );`
`98`		`- VectorNormalize( binormal );`
	`97`	`+ VectorNormalizeFast( tangent );`
	`98`	`+ VectorNormalizeFast( binormal );`
`99`	`99`	`}`
`100`	`100`
`101`	`101`	`void R_CalcTangents( vec3_t tangent, vec3_t binormal,`