diff --git a/show-material/assets/effects/standard-fresnel-ibl.effect b/show-material/assets/effects/standard-fresnel-ibl.effect
index 9f2af22..3603c6f 100644
--- a/show-material/assets/effects/standard-fresnel-ibl.effect
+++ b/show-material/assets/effects/standard-fresnel-ibl.effect
@@ -13,13 +13,14 @@ CCEffect %{
         alphaThreshold: { value: 0.5, target: albedoScaleAndCutoff.w, editor: { parent: USE_ALPHA_TEST, slide: true, range: [0, 1.0], step: 0.001 } }
         occlusion:      { value: 1.0, target: pbrParams.x, editor: { slide: true, range: [0, 1.0], step: 0.001 }  }
         roughness:      { value: 0.8, target: pbrParams.y, editor: { slide: true, range: [0, 1.0], step: 0.001 }  }
+        metallic:       { value: 0.6, target: pbrParams.z, editor: { slide: true, range: [0, 1.0], step: 0.001 } }
+        SpecularIntensity: { value: 0.5, target: pbrParams.w, editor: {  slide: true, range: [0.0, 1.0], step: 0.001 } }
         highlightColor: { value: [0.8, 0.8, 0.8, 1.0], editor: { displayName: Highlight Color, type: color } }
         Fresnelcol:    { value: [0.9, 0.9, 0.9, 1.0], editor: { displayName: Fresnel Color, type: color } }
-        _fresnelBase:  { value: 0.1, target: rampParams.x, editor: { range: [0.1, 1.0] } }
-        _fresnelScale:  { value: 0.5, target: rampParams.y, editor: { range: [0.1, 1.0] } }
-        _fresnelIndensity: { value: 5.0, target: rampParams.z, editor: { range: [0.0, 5.0] } }
-        metallic:       { value: 0.6, target: pbrParams.z, editor: { slide: true, range: [0, 1.0], step: 0.001 } }
-        normalStrenth:  { value: 1.0, target: pbrParams.w, editor: { parent: USE_NORMAL_MAP, slide: true, range: [0, 1.0], step: 0.001 } }
+        _fresnelBase:  { value: 0.1, target: rampParams.x, editor: { slide: true, range: [0.1, 1.0], step: 0.001 } }
+        _fresnelScale:  { value: 0.5, target: rampParams.y, editor: { slide: true, range: [0.1, 1.0], step: 0.001 } }
+        _fresnelIndensity: { value: 5.0, target: rampParams.z, editor: { slide: true, range: [0.0, 5.0], step: 0.001 } }
+        normalStrenth:  { value: 1.0, target: rampParams.w, editor: { parent: USE_NORMAL_MAP, slide: true, range: [0, 1.0], step: 0.001 } }
         emissive:       { value: [0.0, 0.0, 0.0, 1.0], editor: { type: color } }
         emissiveScale:  { value: [1.0, 1.0, 1.0], target: emissiveScaleParam.xyz }
         mainTexture:    { value: grey, target: albedoMap, editor: { displayName: AlbedoMap } }
@@ -75,11 +76,6 @@ CCEffect %{
         alphaThreshold: { value: 0.5, target: albedoScaleAndCutoff.w, editor: { parent: USE_ALPHA_TEST } }
         occlusion:      { value: 1.0, target: pbrParams.x }
         roughness:      { value: 0.8, target: pbrParams.y }
-        highlightColor: { value: [0.8, 0.8, 0.8, 1.0], editor: { displayName: Highlight Color, type: color } }
-        Fresnelcol:    { value: [0.9, 0.9, 0.9, 1.0], editor: { displayName: Fresnel Color, type: color } }
-        _fresnelBase:  { value: 0.1, target: rampParams.x, editor: { range: [0.1, 1.0] } }
-        _fresnelScale:  { value: 0.5, target: rampParams.y, editor: { range: [0.1, 1.0] } }
-        _fresnelIndensity: { value: 5.0, target: rampParams.z, editor: { range: [0.0, 5.0] } }
         metallic:       { value: 0.6, target: pbrParams.z }
         normalStrenth:  { value: 1.0, target: pbrParams.w, editor: { parent: USE_NORMAL_MAP } }
         emissive:       { value: [0.0, 0.0, 0.0, 1.0], editor: { type: color } }
@@ -242,6 +238,7 @@ CCProgram standard-fs %{
   #define OCCLUSION_CHANNEL r
   #define ROUGHNESS_CHANNEL g
   #define METALLIC_CHANNEL  b
+  #define SpecularIntensity_CHANNEL w
 
   #if USE_ALPHA_TEST
     #pragma define ALPHA_TEST_CHANNEL options([a, r])
@@ -249,7 +246,8 @@ CCProgram standard-fs %{
 
   void surf (out StandardSurface s) {
     vec4 baseColor = albedo;
-    #if USE_VERTEX_COLORnp
+    #if USE_VERTEX_COLOR
+      baseColor.rgb *= SRGBToLinear(v_color.rgb);//use  linear
       baseColor *= v_color;
     #endif
     #if USE_ALBEDO_MAP
@@ -267,7 +265,24 @@ CCProgram standard-fs %{
     float fresnel = fresnelBase + fresnelScale*pow(1.0 - dot(N, viewDir), fresnelIndensity);
     s.albedo = baseColor;
     s.albedo.rgb *= albedoScaleAndCutoff.xyz;
-    s.albedo.rgb += mix((s.albedo.rgb)+(highlightColor.rgb), Fresnelcol.rgb, fresnel) * Fresnelcol.a;
+
+  vec3 fresnel_color = Fresnelcol.rgb;
+  #if CC_USE_IBL
+    vec3 RR = -viewDir;
+    vec4 envmap = fragTextureLod(cc_environment, RR,  cc_ambientGround.w);
+    #if CC_USE_IBL == IBL_RGBE
+      vec3 env = unpackRGBE(envmap);
+    #else
+      vec3 env = SRGBToLinear(envmap.rgb);
+    #endif
+    fresnel_color = env * cc_ambientSky.w * 50.0;
+  #endif
+    
+    
+    
+    
+    
+    s.albedo.rgb += mix((s.albedo.rgb)+(highlightColor.rgb),fresnel_color.rgb, fresnel) * Fresnelcol.a;
     
 
     #if USE_ALPHA_TEST
@@ -284,20 +299,24 @@ CCProgram standard-fs %{
     #if USE_NORMAL_MAP
       vec3 nmmp = texture(normalMap, NORMAL_UV).xyz - vec3(0.5);
       s.normal =
-        (nmmp.x * pbrParams.w) * normalize(v_tangent) +
-        (nmmp.y * pbrParams.w) * normalize(v_bitangent) +
+        (nmmp.x * rampParams.w) * normalize(v_tangent) +
+        (nmmp.y * rampParams.w) * normalize(v_bitangent) +
         nmmp.z * normalize(s.normal);
     #endif
 
     s.position = v_position;
 
     vec4 pbr = pbrParams;
+    
     #if USE_PBR_MAP
       vec4 res = texture(pbrMap, PBR_UV);
       pbr.x *= res.OCCLUSION_CHANNEL;
       pbr.y *= res.ROUGHNESS_CHANNEL;
       pbr.z *= res.METALLIC_CHANNEL;
+      pbr.w *= res.SpecularIntensity_CHANNEL;//F0
     #endif
+
+
     #if USE_METALLIC_ROUGHNESS_MAP
       vec4 metallicRoughness = texture(metallicRoughnessMap, PBR_UV);
       pbr.z *= metallicRoughness.METALLIC_CHANNEL;
@@ -309,6 +328,7 @@ CCProgram standard-fs %{
     s.occlusion = clamp(pbr.x, 0.0, 0.96);
     s.roughness = clamp(pbr.y, 0.04, 1.0);
     s.metallic = pbr.z;
+    s.SpecularIntensity = pbr.w;
 
     s.emissive = emissive.rgb * emissiveScaleParam.xyz;
     #if USE_EMISSIVE_MAP