93 lines
1.9 KiB
GLSL
93 lines
1.9 KiB
GLSL
#version 450 core
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#extension GL_ARB_shading_language_include : require
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#include "../../lib/lights.fs"
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#include "../../lib/material.fs"
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//foliage.fs
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/**
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* Transparency of the foliage
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*/
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#define FOLIAGE_TRANSPARENCY 1.0
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in vec3 FragPos;
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in vec3 ViewFragPos;
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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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in vec3 normalRot1;
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in vec3 normalRot2;
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uniform dvec3 viewPos;
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// uniform DirLight dirLight;
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// uniform PointLight pointLights[NR_POINT_LIGHTS];
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// uniform SpotLight spotLight;
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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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uniform vec3 baseColor;
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uniform vec3 tipColor;
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uniform mat4 view;
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/**
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The output
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*/
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out vec4 FragColor;
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// function prototypes
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float easeIn(float interpolator);
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float easeOut(float interpolator);
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void main(){
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//basic vars
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float heightPercent = TexCoord.y;
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//calculate color
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vec3 textureColor = mix(baseColor,tipColor,easeIn(heightPercent));
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//mix normals
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float normalMix = TexCoord.x;
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float normalMultiplier = -(1.0 + -2.0 * int(gl_FrontFacing));
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vec3 norm = normalize(mix(normalRot1,normalRot2,normalMix) * normalMultiplier);
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// vec3 norm = normalize(Normal * normalMultiplier);
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vec3 viewDir = normalize(vec3(viewPos) - FragPos);
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//grab light intensity
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vec3 lightIntensity = vec3(calcLightIntensityTotal(norm));
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// Calculate the light to apply
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vec3 light = getTotalLight(
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material,
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textureColor,
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vec3(viewPos.xyz),
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FragPosLightSpace,
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ViewFragPos,
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FragPos,
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norm,
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viewDir
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);
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//calculate final color
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vec3 finalColor = light;
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//this final calculation is for transparency
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FragColor = vec4(finalColor, FOLIAGE_TRANSPARENCY);
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}
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float easeIn(float interpolator){
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return interpolator * interpolator;
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}
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float easeOut(float interpolator){
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return 1 - easeIn(1 - interpolator);
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} |