Review shader exaples to work on web (GLSL 100)

examples/shaders/resources/shaders/glsl330/basic_lighting.vs

@@ -1,33 +0,0 @@
-#version 330
-
-// Input vertex attributes
-in vec3 vertexPosition;
-in vec2 vertexTexCoord;
-in vec3 vertexNormal;
-in vec4 vertexColor;
-
-// Input uniform values
-uniform mat4 mvp;
-uniform mat4 matModel;
-
-// Output vertex attributes (to fragment shader)
-out vec3 fragPosition;
-out vec2 fragTexCoord;
-out vec4 fragColor;
-out vec3 fragNormal;
-
-// NOTE: Add here your custom variables
-
-void main()
-{
-    // Send vertex attributes to fragment shader
-    fragPosition = vec3(matModel*vec4(vertexPosition, 1.0f));
-    fragTexCoord = vertexTexCoord;
-    fragColor = vertexColor;
-    
-    mat3 normalMatrix = transpose(inverse(mat3(matModel)));
-    fragNormal = normalize(normalMatrix*vertexNormal);
-
-    // Calculate final vertex position
-    gl_Position = mvp*vec4(vertexPosition, 1.0);
-}