Ao map now only attenuates indirect lighting in PBR shader

Author: Nehon

jme3-core/src/main/resources/Common/MatDefs/Light/PBRLighting.frag

@@ -196,6 +196,7 @@ void main(){
     #endif
 
     gl_FragColor.rgb = vec3(0.0);
+    vec3 ao = vec3(1.0);
 
     #ifdef LIGHTMAP
        vec3 lightMapColor;
@@ -206,7 +207,7 @@ void main(){
        #endif
        #ifdef AO_MAP
          lightMapColor.gb = lightMapColor.rr;
-         diffuseColor.rgb  *= lightMapColor;
+         ao = lightMapColor;
        #else
          gl_FragColor.rgb += diffuseColor.rgb * lightMapColor;
        #endif
@@ -268,7 +269,7 @@ void main(){
         indirectSpecular = ApproximateSpecularIBLPolynomial(g_PrefEnvMap, specularColor.rgb, Roughness, ndotv, dominantR, nbMipMaps);
         indirectSpecular *= vec3(horiz);
 
-        vec3 indirectLighting =  indirectDiffuse + indirectSpecular;
+        vec3 indirectLighting = (indirectDiffuse + indirectSpecular) * ao;
 
         gl_FragColor.rgb = gl_FragColor.rgb + indirectLighting * step( 0.0, g_LightProbeData.w);
     #endif

jme3-examples/src/main/java/jme3test/light/pbr/TestPBRLighting.java

@@ -33,27 +33,22 @@
 
 import com.jme3.app.SimpleApplication;
 import com.jme3.bounding.BoundingSphere;
-import com.jme3.environment.util.*;
-import com.jme3.light.LightProbe;
-import com.jme3.environment.LightProbeFactory;
 import com.jme3.environment.EnvironmentCamera;
+import com.jme3.environment.LightProbeFactory;
 import com.jme3.environment.generation.JobProgressAdapter;
+import com.jme3.environment.util.EnvMapUtils;
+import com.jme3.environment.util.LightsDebugState;
 import com.jme3.input.ChaseCamera;
 import com.jme3.input.KeyInput;
 import com.jme3.input.controls.ActionListener;
 import com.jme3.input.controls.KeyTrigger;
 import com.jme3.light.DirectionalLight;
+import com.jme3.light.LightProbe;
 import com.jme3.material.Material;
-import com.jme3.math.ColorRGBA;
-import com.jme3.math.FastMath;
-import com.jme3.math.Vector3f;
+import com.jme3.math.*;
 import com.jme3.post.FilterPostProcessor;
-import com.jme3.post.filters.FXAAFilter;
 import com.jme3.post.filters.ToneMapFilter;
-import com.jme3.post.ssao.SSAOFilter;
-import com.jme3.scene.Geometry;
-import com.jme3.scene.Node;
-import com.jme3.scene.Spatial;
+import com.jme3.scene.*;
 import com.jme3.texture.plugins.ktx.KTXLoader;
 import com.jme3.util.MaterialDebugAppState;
 import com.jme3.util.SkyFactory;

jme3-testdata/src/main/resources/Models/Tank/Tank_AO.png

@@ -6,6 +6,8 @@ Material Tank : Common/MatDefs/Light/PBRLighting.j3md {
         NormalMap : Flip Models/Tank/Tank_Normal.png
         BaseColorMap : Flip Models/Tank/Tank_Base_Color.png
         EmissiveMap : Flip Models/Tank/Tank_Emissive.png
+        LightMap: Flip Models/Tank/Tank_AO.png
+        LightMapAsAOMap: true;
         EmissiveIntensity : 2.0
 
      }