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Improved SSR shader

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This commit is contained in:
Antoine Pilote
2023-09-23 16:18:50 -04:00
parent 0cf8491568
commit 50bc020f6e
1 changed files with 7 additions and 15 deletions
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22
Editor/resources/Shaders/ssr.shader
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@@ -43,7 +43,7 @@ uniform float samplingCoefficient = 0.001f;
vec3 ReflectedVector;
float Metallic;
const float reflectionSpecularFalloffExponent = 3.0;
const float reflectionSpecularFalloffExponent = 5.0;
float random(vec2 uv) {
return fract(sin(dot(uv, vec2(12.9898, 78.233))) * 43758.5453123); //simple random function
}
@@ -86,7 +86,7 @@ vec3 SSR(vec3 position, vec3 reflection) {
screenEdgefactor *
-ReflectedVector.z;
return texture(textureFrame, screenPosition).xyz * color * clamp(ReflectionMultiplier, 0.0, 0.9);
return texture(textureFrame, screenPosition).xyz * color * clamp(ReflectionMultiplier, 0.0, 1.0);
}
if (isBinarySearchEnabled && delta > 0) {
break;
@@ -126,7 +126,7 @@ vec3 SSR(vec3 position, vec3 reflection) {
}
}
return vec3(0.0);
return vec3(0, 0, 0);
}
vec3 fresnelSchlick(float cosTheta, vec3 F0)
@@ -160,21 +160,13 @@ void main() {
vec2 coeffs = vec2(random(UV + vec2(0, i)) + random(UV + vec2(i, 0))) * samplingCoefficient;
vec3 reflectionDirectionRandomized = reflectionDirection + firstBasis * coeffs.x + secondBasis * coeffs.y;
vec3 tempColor = SSR(position, normalize(reflectionDirectionRandomized));
if(tempColor != vec3(0))
resultingColor += vec4(tempColor, 1.0f);
resultingColor += vec4(tempColor, 1.0f);
}
if(resultingColor.w != 0)
resultingColor /= resultingColor.w;
if (resultingColor.xyz == vec3(0.0f))
{
outColor = vec4(1, 0, 0, 0);
return;
}
if (resultingColor.w != 0)
resultingColor /= resultingColor.w;
outColor = vec4(resultingColor.xyz * Fresnel, 1.0) ;