Merge pull request #782 from hx2A/fixbug

fix #781 - `PShape.getSpecular()`, `.getEmissive()`, and `.getShininess()`

Author: benfry

core/src/processing/opengl/PShapeOpenGL.java

@@ -2455,7 +2455,7 @@ public void setAmbient(int index, int ambient) {
 
   @Override
   public int getSpecular(int index) {
-    if (family == GROUP) {
+    if (family != GROUP) {
       if (root.tessUpdate) {
         return PGL.nativeToJavaARGB(tessGeo.polySpecular[firstPolyVertex + index]);
       } else {
@@ -2528,7 +2528,7 @@ public void setSpecular(int index, int specular) {
 
   @Override
   public int getEmissive(int index) {
-    if (family == GROUP) {
+    if (family != GROUP) {
       if (root.tessUpdate) {
         return PGL.nativeToJavaARGB(tessGeo.polyEmissive[firstPolyVertex + index]);
       } else {
@@ -2602,7 +2602,7 @@ public void setEmissive(int index, int emissive) {
 
   @Override
   public float getShininess(int index) {
-    if (family == GROUP) {
+    if (family != GROUP) {
       if (root.tessUpdate) {
         return tessGeo.polyShininess[firstPolyVertex + index];
       } else {