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Fix position reconstruction formula in ssao

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This commit is contained in:
Vincent Lejeune 2014-07-12 19:54:52 +02:00
parent abe8275969
commit d7139920ed
1 changed files with 3 additions and 3 deletions
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6
data/shaders/ssao.frag
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@ -38,8 +38,8 @@ const float invSamples = 1. / SAMPLES;
vec3 getXcYcZc(int x, int y, float zC)
{
// We use perspective symetric projection matrix hence P(0,2) = P(1, 2) = 0
float xC= (1. - 2 * (float(x) + 0.5) / screen.x) * zC / ProjectionMatrix[0][0];
float yC= (1. + 2 * (float(y) + 0.5) / screen.y) * zC / ProjectionMatrix[1][1];
float xC= (2 * (float(x)) / screen.x - 1.) * zC / ProjectionMatrix[0][0];
float yC= (2 * (float(y)) / screen.y - 1.) * zC / ProjectionMatrix[1][1];
return vec3(xC, yC, zC);
}
@ -53,7 +53,7 @@ void main(void)
// get the normal of current fragment
vec3 ddx = dFdx(FragPos);
vec3 ddy = dFdy(FragPos);
vec3 norm = -normalize(cross(ddy, ddx));
vec3 norm = normalize(cross(ddy, ddx));
float r = radius / FragPos.z;
float phi = 3. * (x ^ y) + x * y;