90 lines
1.7 KiB
GLSL
90 lines
1.7 KiB
GLSL
|
|
|
|
#version 450 core
|
|
|
|
|
|
/**
|
|
Bind points for different SSBOs
|
|
*/
|
|
#define DIRECT_LIGHT_SSBO_BIND_POINT 3
|
|
|
|
/**
|
|
transparency
|
|
*/
|
|
#define SMALL_EPSILON 0.001
|
|
|
|
/**
|
|
The direct global light
|
|
*/
|
|
struct DirectLight {
|
|
vec3 direction;
|
|
vec3 color;
|
|
vec3 ambientColor;
|
|
};
|
|
|
|
|
|
out vec4 FragColor;
|
|
|
|
layout(std430, binding = DIRECT_LIGHT_SSBO_BIND_POINT) restrict buffer dirLightSSBO {
|
|
DirectLight directLight;
|
|
};
|
|
|
|
struct Material {
|
|
sampler2D diffuse;
|
|
sampler2D specular;
|
|
float shininess;
|
|
};
|
|
|
|
|
|
in vec3 FragPos;
|
|
in vec3 Normal;
|
|
in vec2 TexCoord;
|
|
in vec4 FragPosLightSpace;
|
|
|
|
uniform vec3 viewPos;
|
|
uniform Material material;
|
|
|
|
//texture stuff
|
|
// uniform sampler2D ourTexture;
|
|
uniform int hasTransparency;
|
|
// uniform sampler2D specularTexture;
|
|
|
|
//light depth map
|
|
uniform sampler2D shadowMap;
|
|
|
|
// function prototypes
|
|
float calcLightIntensityTotal(vec3 normal);
|
|
|
|
|
|
void main(){
|
|
if(hasTransparency == 1){
|
|
if(texture(material.diffuse, TexCoord).a < 0.1){
|
|
discard;
|
|
}
|
|
}
|
|
vec4 textureColor = texture(material.diffuse, TexCoord);
|
|
|
|
//grab light intensity
|
|
vec3 norm = normalize(Normal);
|
|
vec3 lightIntensity = vec3(calcLightIntensityTotal(norm));
|
|
|
|
//calculate final color
|
|
vec3 finalColor = textureColor.rgb * lightIntensity;
|
|
FragColor = vec4(finalColor, textureColor.a);
|
|
}
|
|
|
|
float calcLightIntensityAmbient(){
|
|
//calculate average of ambient light
|
|
float avg = (directLight.color.x + directLight.color.y + directLight.color.z)/3.0;
|
|
return avg;
|
|
}
|
|
|
|
//
|
|
float calcLightIntensityTotal(vec3 normal){
|
|
//ambient intensity
|
|
float ambientLightIntensity = calcLightIntensityAmbient();
|
|
|
|
//sum
|
|
float total = ambientLightIntensity;
|
|
return total;
|
|
} |