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