First blood

assets/test_simplelight.fragment

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+precision lowp float;
+
+uniform sampler2D Texture;
+uniform sampler2D NormalMap;
+uniform vec3 LightDirection;
+uniform float TimeOfDayCoef1;
+uniform float TimeOfDayCoef2;
+uniform vec3 TimeOfDayColor;
+varying vec2 texCoord;
+
+varying vec3 camVec;
+varying vec3 normVec;
+
+void main() 
+{
+
+	vec3 nvec = normalize(normVec);
+	
+	float cosf = max(0.0, dot(nvec, -LightDirection));
+	
+	//gl_FragColor =  vec4((texture2D(Texture, texCoord).rgb * (cosf * 0.75 + 0.25)), 1.0); //day
+	//gl_FragColor =  vec4((texture2D(Texture, texCoord).rgb * (cosf * 0.5 + 0.25)), 1.0); //twilight
+	//gl_FragColor =  vec4(((texture2D(Texture, texCoord).rgb + vec3(0.0, 0.1, 0.2)) * (0.4)), 1.0);
+	
+	gl_FragColor =  vec4(((texture2D(Texture, texCoord).rgb + TimeOfDayColor) * (cosf * TimeOfDayCoef1 + TimeOfDayCoef2)), 1.0);
+}