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Code Issues Releases Wiki Activity

fix fresnel effect

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XProger
2019-07-08 01:59:17 +03:00
parent 098d907a5b
commit ed5a7acbf4
1 changed files with 3 additions and 4 deletions
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7
src/shaders/water.glsl
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@@ -104,9 +104,8 @@ vec3 calcNormal(vec2 tc, float base) {
#define PI 3.141592653589793
float calcFresnel(float VoH, float f0) {
float f = pow(1.0 - VoH, 5.0);
return f + f0 * (1.0 - f);
float calcFresnel(float NdotV, float f0) {
return f0 + (1.0 - f0) * pow(1.0 - NdotV, 5.0);
}
#ifdef WATER_DROP
@@ -234,7 +233,7 @@ vec3 calcNormal(vec2 tc, float base) {
vec4 refr = vec4(mix(refrA.xyz, refrB.xyz, refrA.w), 1.0);
vec4 refl = texture2D(sReflect, vec2(tc.x, 1.0 - tc.y) + dudv * uParam.w);
float fresnel = calcFresnel(max(0.0, dot(normal, viewVec)), 0.12);
float fresnel = calcFresnel(abs(dot(normal, viewVec)), 0.12);
vec4 color = mix(refr, refl, fresnel);
color.xyz += spec * 1.5;