Files
Examples/OpenGL/playground/resources/shaders/phong.frag

26 lines
545 B
GLSL

#version 330
in vec3 Normal;
in vec3 FragPos;
uniform vec3 lightPos;
out vec4 outColour;
vec3 objectColour = vec3(0.58, 0.61, 0.627);
vec3 lightColour = vec3(0.0, 1.0, 1.0);
void main() {
float ambientStrength = 0.5;
vec3 ambient = ambientStrength * lightColour;
vec3 norm = normalize(Normal);
vec3 lightDir = normalize(lightPos - FragPos);
float diff = max(dot(norm, lightDir), 0.0);
vec3 diffuse = diff * lightColour;
vec3 result = (ambient + diffuse) * objectColour;
outColour = vec4(result, 1.0);
}