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#version 330 core
out vec4 fragColor;
in vec3 normal_cameraSpace;
in vec3 camera_worldSpace;
in vec3 normal_worldSpace;
in vec3 pos;
uniform int wire = 0;
uniform float red = 1.0;
uniform float green = 1.0;
uniform float blue = 1.0;
uniform float alpha = 1.0;
void main() {
// Do lighting in camera space
vec3 lightDir = normalize(vec3(0, 0.5, 1));
float d = clamp(dot(normal_cameraSpace, lightDir), 0, 1);
vec3 reflectedLight = lightDir - 2 * dot(lightDir, normal_worldSpace) * normal_worldSpace;
vec3 posToCam = normalize(camera_worldSpace - pos);
float spec = pow(dot(posToCam, reflectedLight), 2.f);
fragColor = clamp(0.5f * vec4(red * d, green * d, blue * d, 0.5f) + 0.5f * vec4(1, 1, 1, 1) * spec, 0, 1);
}
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