Refactor array initialization

vanruesc · vanruesc · commit 1e73033bbfa2 · 2023-10-30T12:50:05.000+01:00
Addresses pmndrs#506
diff --git a/src/materials/glsl/depth-downsampling.frag b/src/materials/glsl/depth-downsampling.frag
@@ -39,15 +39,16 @@ float readDepth(const in vec2 uv) {
  * Returns the index of the most representative depth in the 2x2 neighborhood.
  */
 
-int findBestDepth(const in highp float samples[4]) {
+int findBestDepth(const in float samples[4]) {
 
 	// Calculate the centroid.
 	float c = (samples[0] + samples[1] + samples[2] + samples[3]) * 0.25;
 
-	highp float distances[] = float[4](
-		abs(c - samples[0]), abs(c - samples[1]),
-		abs(c - samples[2]), abs(c - samples[3])
-	);
+	float distances[4];
+	distances[0] = abs(c - samples[0]);
+	distances[1] = abs(c - samples[1]);
+	distances[2] = abs(c - samples[2]);
+	distances[3] = abs(c - samples[3]);
 
 	float maxDistance = max(
 		max(distances[0], distances[1]),
@@ -116,27 +117,30 @@ int findBestDepth(const in highp float samples[4]) {
 void main() {
 
 	// Gather depth samples in a 2x2 neighborhood.
-	highp float d[] = float[4](
-		readDepth(vUv0), readDepth(vUv1),
-		readDepth(vUv2), readDepth(vUv3)
-	);
+	float d[4];
+	d[0] = readDepth(vUv0);
+	d[1] = readDepth(vUv1);
+	d[2] = readDepth(vUv2);
+	d[3] = readDepth(vUv3);
 
 	int index = findBestDepth(d);
 
 	#ifdef DOWNSAMPLE_NORMALS
 
 		// Gather all corresponding normals to avoid dependent texel fetches.
-		highp vec3 n[] = vec3[4](
-			texture2D(normalBuffer, vUv0).rgb, texture2D(normalBuffer, vUv1).rgb,
-			texture2D(normalBuffer, vUv2).rgb, texture2D(normalBuffer, vUv3).rgb
-		);
+		vec3 n[4];
+		n[0] = texture2D(normalBuffer, vUv0).rgb;
+		n[1] = texture2D(normalBuffer, vUv1).rgb;
+		n[2] = texture2D(normalBuffer, vUv2).rgb;
+		n[3] = texture2D(normalBuffer, vUv3).rgb;
 
 	#else
 
-		highp vec3 n[] = vec3[4](
-			vec3(0.0), vec3(0.0),
-			vec3(0.0), vec3(0.0)
-		);
+		vec3 n[4];
+		n[0] = vec3(0.0);
+		n[1] = vec3(0.0);
+		n[2] = vec3(0.0);
+		n[3] = vec3(0.0);
 
 	#endif
 
