100 lines
2.5 KiB
Plaintext
100 lines
2.5 KiB
Plaintext
|
#version 330 core
|
||
|
|
|
||
|
|
out vec4 FragColor;
|
||
|
|
|
||
|
|
struct Light {
|
||
|
|
vec3 direction;
|
||
|
|
vec3 color;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct PLight {
|
||
|
|
vec3 position;
|
||
|
|
vec3 color;
|
||
|
|
float constant;
|
||
|
|
float linear;
|
||
|
|
float quadratic;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct SLight {
|
||
|
|
vec3 position;
|
||
|
|
vec3 direction;
|
||
|
|
float cutOff;
|
||
|
|
float outerCutOff;
|
||
|
|
};
|
||
|
|
|
||
|
|
uniform vec3 objectColor;
|
||
|
|
uniform vec3 lightColor;
|
||
|
|
uniform vec3 lightPos;
|
||
|
|
uniform vec3 viewPos;
|
||
|
|
|
||
|
|
uniform sampler2D diffuseTex;
|
||
|
|
uniform sampler2D specTex;
|
||
|
|
uniform float shininess;
|
||
|
|
uniform Light light;
|
||
|
|
uniform PLight plight;
|
||
|
|
uniform SLight slight;
|
||
|
|
|
||
|
|
in vec3 Normal;
|
||
|
|
in vec3 FragPos;
|
||
|
|
|
||
|
|
in vec2 TexCoords;
|
||
|
|
|
||
|
|
float near = 0.1;
|
||
|
|
float far = 100.0;
|
||
|
|
|
||
|
|
float LinearizeDepth(float depth)
|
||
|
|
{
|
||
|
|
float z = depth * 2.0 - 1.0; // back to NDC
|
||
|
|
return (2.0 * near * far) / (far + near - z * (far - near));
|
||
|
|
}
|
||
|
|
|
||
|
|
// void main()
|
||
|
|
// {
|
||
|
|
// float depth = LinearizeDepth(gl_FragCoord.z) / far; // divide by far for demonstration
|
||
|
|
// FragColor = vec4(vec3(depth), 1.0);
|
||
|
|
// }
|
||
|
|
void main()
|
||
|
|
{
|
||
|
|
//vec3 dirDir = normalize(-Directional.direction);
|
||
|
|
|
||
|
|
float ambientStrength = 1.f;
|
||
|
|
vec3 ambient = ambientStrength * vec3(texture(diffuseTex, TexCoords));
|
||
|
|
|
||
|
|
// vec3 norm = normalize(Normal);
|
||
|
|
|
||
|
|
// vec3 diffuse;
|
||
|
|
|
||
|
|
// Directional
|
||
|
|
//vec3 lightDir = normalize(-light.direction);
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
// Point
|
||
|
|
// float distance = length(plight.position - FragPos);
|
||
|
|
// float attenuation = 1.f / (plight.constant + plight.linear * distance + plight.quadratic * (distance * distance));
|
||
|
|
// vec3 lightDir = normalize(lightPos - FragPos);
|
||
|
|
|
||
|
|
// float diff = max(dot(norm, lightDir), 0.f);
|
||
|
|
//diffuse = diff * lightColor * vec3(texture(diffuseTex, TexCoords)) * attenuation;
|
||
|
|
|
||
|
|
// Spot
|
||
|
|
// lightDir = normalize(slight.position - FragPos);
|
||
|
|
// float theta = dot(lightDir, normalize(-slight.direction));
|
||
|
|
// float epsilon = slight.cutOff - slight.outerCutOff;
|
||
|
|
// float intensity = clamp((theta - slight.outerCutOff) / epsilon, 0.f, 1.f);
|
||
|
|
// diffuse = lightColor * diff * vec3(texture(diffuseTex, TexCoords)) * intensity;
|
||
|
|
|
||
|
|
// float specularStrength = 0.5f;
|
||
|
|
// vec3 viewDir = normalize(viewPos - FragPos);
|
||
|
|
// vec3 reflectDir = reflect(-lightDir, norm);
|
||
|
|
// float spec = pow(max(dot(viewDir, reflectDir), 0.f), 32);
|
||
|
|
// vec3 specular = specularStrength * spec * lightColor * texture(specTex, TexCoords).rgb;
|
||
|
|
|
||
|
|
// if(texture(specTex, TexCoords).r < 0.1f)
|
||
|
|
// discard;
|
||
|
|
|
||
|
|
//vec3 result = (ambient + diffuse + specular) * objectColor;
|
||
|
|
|
||
|
|
FragColor = vec4(ambient, 1.f);
|
||
|
|
}
|