lumière spéculaire calculé dans le fragment shader

lab3/src/debug.log

 [1120/133929.315:ERROR:directory_reader_win.cc(43)] FindFirstFile: Le chemin daccs spcifi est introuvable. (0x3)
 [1126/175840.510:ERROR:directory_reader_win.cc(43)] FindFirstFile: Le chemin daccs spcifi est introuvable. (0x3)
+[1127/141033.333:ERROR:directory_reader_win.cc(43)] FindFirstFile: Le chemin daccs spcifi est introuvable. (0x3)

lab3/src/lab3.js

@@ -116,30 +116,44 @@ var VSHADER_SOURCE_PONCTUAL =
 
   'uniform mat4 u_MvpMatrix;\n' +
   'uniform mat4 u_ModelMatrix;\n' +   
-  'uniform mat4 u_NormalMatrix;\n' +
+  'uniform mat4 u_NormalMatrix;\n' + 
 
-  'uniform vec3 u_LightColor;\n' +     
-  'uniform vec3 u_LightPosition;\n' +  
-  'uniform vec3 u_AmbientLight;\n' +  
+  'uniform vec3 u_AmbientLight;\n' + 
+
+  'varying vec3 normal;\n' + 
+  'varying vec4 vertexPosition;\n' + 
+  'varying vec3 ambient;\n' + 
 
   'varying vec4 v_Color;\n' +
+
   'void main() {\n' +
   '  gl_Position = u_MvpMatrix * a_Position;\n' +
-  '  vec3 normal = normalize(vec3(u_NormalMatrix * a_Normal));\n' +
-  '  vec4 vertexPosition = u_ModelMatrix * a_Position;\n' +
-  '  vec3 lightDirection = normalize(u_LightPosition - vec3(vertexPosition));\n' +
-  '  float nDotL = max(dot(normal, lightDirection), 0.0);\n' +
-  '  vec3 diffuse = u_LightColor * a_Color.rgb * nDotL;\n' +
-  '  v_Color = vec4(diffuse, a_Color.a);\n' + 
+  '  normal = normalize(vec3(u_NormalMatrix * a_Normal));\n' +
+  '  vertexPosition = u_ModelMatrix * a_Position;\n' +
+
+  '  ambient = u_AmbientLight * a_Color.xyz;\n' +
+
+  '  v_Color = a_Color;\n' +
   '}\n';
 
 var FSHADER_SOURCE_PONCTUAL =
-  '#ifdef GL_ES\n' +
   'precision mediump float;\n' +
-  '#endif\n' +
+
+  'uniform vec3 u_LightColor;\n' +     
+  'uniform vec3 u_LightPosition;\n' +  
+
   'varying vec4 v_Color;\n' +
+  'varying vec3 normal;\n' + 
+  'varying vec4 vertexPosition;\n' + 
+  'varying vec3 ambient;\n' +
+
   'void main() {\n' +
-  '  gl_FragColor = v_Color;\n' +
+
+  '  vec3 lightDirection = normalize(u_LightPosition - vec3(vertexPosition));\n' +
+  '  float nDotL = max(dot(normal, lightDirection), 0.0);\n' +
+  '  vec3 diffuse = u_LightColor * v_Color.rgb * nDotL;\n' +
+
+  '  gl_FragColor = vec4(diffuse + ambient, v_Color.a);\n' +
   '}\n';
 
 function initElements(){