feat: opaque amror

src/components/ArmorMesh/shaders/fragment.glsl

@@ -1,4 +1,6 @@
-varying vec3 vViewPosition;
+// split shaders due to https://github.com/FarazzShaikh/THREE-CustomShaderMaterial/issues/48
+
+varying vec3 vCSMViewPosition;
 uniform float thickness;
 uniform float penetration;
 uniform float ricochet;
@@ -7,7 +9,7 @@ uniform float normalization;
 
 void main() {
   vec3 normalizedNormal = normalize(vNormal);
-  vec3 normalizedViewPosition = normalize(vViewPosition);
+  vec3 normalizedViewPosition = normalize(vCSMViewPosition);
   float cosAngle = dot(normalizedNormal, -normalizedViewPosition);
   float angle = acos(cosAngle);
 
@@ -18,18 +20,18 @@ void main() {
   float finalPenetration = penetration;
   float effectiveArmor = thickness / cos(angle - finalNormalization);
 
-  if(angle < ricochet) {
+  if (angle < ricochet) {
     // no auto-ricochet, resume checks
-    if(threeCaliberRule) {
+    if (threeCaliberRule) {
       penetrationChance = 1.0;
     } else {
       float maxRandomPenetrationBuff = finalPenetration * 0.05;
       float penetrationDifference = effectiveArmor - finalPenetration;
 
-      if(penetrationDifference > maxRandomPenetrationBuff) {
+      if (penetrationDifference > maxRandomPenetrationBuff) {
         // even with a +5% buff, can't penetrate
         penetrationChance = 0.0;
-      } else if(penetrationDifference < -maxRandomPenetrationBuff) {
+      } else if (penetrationDifference < -maxRandomPenetrationBuff) {
         // event with a -5% nerf, can penetrate
         penetrationChance = 1.0;
       } else {
@@ -39,5 +41,5 @@ void main() {
     }
   }
 
-  csm_FragColor *= vec4(1.0, 0.0, 0.0, (1.0 - penetrationChance) * 0.5);
+  csm_FragColor = vec4(1.0, 0.0, 0.0, (1.0 - penetrationChance) * 0.5);
 }