depth_tex_f_with_simple_shadow.glsl

precision mediump float;

uniform vec3 uLightPos;
uniform float uxPixelOffset;
uniform float uyPixelOffset;
varying vec3 vPosition;
varying vec4 vColor;
varying vec3 vNormal;

void main() {
    vec3 lightVec = uLightPos - vPosition;
    lightVec = normalize(lightVec);
    float specular = pow(max(dot(vNormal, lightVec), 0.0), 5.0);
    float diffuse = max(dot(vNormal, lightVec), 0.1);
    float ambient = 0.3;

    gl_FragColor = (vColor * (diffuse + ambient + specular));
}