61 lines
1.8 KiB
Plaintext
61 lines
1.8 KiB
Plaintext
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#version 300 es
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/*this will affect all the float guys (float, vecN, matN )*/
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precision mediump float;
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in vec3 fragPos; //vertice in coordinata del mondo
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in vec3 fragNormal;
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in vec2 frag_uv; //coordinate 2d di texure
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in vec3 fragBaryc;
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in vec3 T;
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in vec3 B;
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in vec3 N;
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uniform vec3 lightCol;
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uniform vec3 lightPos;
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uniform vec3 eyePos;
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//uniform vec3 diffuseColor;
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uniform sampler2D colorMap; //campionatore 2d
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uniform sampler2D normalMap; //campionatore 2d
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out vec4 FragColor;
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float illuminazione(vec3 lucePos, vec3 fragPos, vec3 eyePos, vec3 fragNormal){
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fragNormal = normalize(fragNormal);
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vec3 aLuceDir = normalize(lucePos - fragPos);
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vec3 allOcchioDir = normalize(eyePos - fragPos);
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float lightDistance = length(lucePos - fragPos);
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vec3 rimbalzoDir = normalize(reflect(-aLuceDir,fragNormal));
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rimbalzoDir = reflect(-aLuceDir,fragNormal);
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float attenuation = 1.0f / (0.01 * lightDistance);
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float diffuseFactor = max(dot(aLuceDir, fragNormal), 0.0);
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float specularFactor = pow(max(dot(rimbalzoDir, allOcchioDir), 0.0), 500.0f);
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return attenuation * ( specularFactor + diffuseFactor );
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//return attenuation * diffuseFactor;
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}
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void main()
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{
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vec3 Nor = normalize(N);
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vec3 Tan = normalize(T);
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vec3 Bit = normalize(B);
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mat3 TBN = mat3(Tan,Bit,Nor);
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vec4 texColor = texture(colorMap,frag_uv);
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vec3 normalPix = texture(normalMap,frag_uv).rgb;
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normalPix = normalPix * 2.0 - 1.0;
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normalPix = normalize(TBN * normalPix);
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normalPix = normalize(TBN * vec3(0,0,1));
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vec3 result = texColor.rgb * illuminazione(lightPos, fragPos, eyePos, normalPix);
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//FragColor = vec4(normalPix, 1.0f);
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FragColor = vec4(texColor.xyz * illuminazione(lightPos, fragPos, eyePos, fragNormal), 1.0f);
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}
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