shithub: fnt

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same for linear terms

--- a/rast.c

+++ b/rast.c

@@ -199,10 +199,6 @@

 		      -   z.p2.x*(3*z.p2.y + 2*z.p1.y +   z.p0.y);

 		r = 1;

 	}

-	if(r){

-		L[0] /= 6.0;

-		L[1] /= 6.0;

-	}

 	return r;

 }

@@ -252,8 +248,8 @@

 	K[0] += β₂ - β₁;

 	K[1] += α₁ - α₂;

-	L[0] += (β₂ - β₁)*(α₁ + α₂)/2;

-	L[1] += (α₁ - α₂)*(β₁ + β₂)/2;

+	L[0] += 3.0*(β₂ - β₁)*(α₁ + α₂);

+	L[1] += 3.0*(α₁ - α₂)*(β₁ + β₂);

 	return 1;

 }

@@ -324,9 +320,9 @@

 		}

 		if(z != 0){

-			c[0] += L[0][1] - L[1][1] + L[2][1] - L[3][1] + K[1][1] + K[3][1];

-			c[1] += L[0][0] + L[1][0] - L[2][0] - L[3][0] + K[2][0] + K[3][0];

-			c[2] += L[0][0] - L[1][0] - L[2][0] + L[3][0] + K[2][0] - K[3][0];

+			c[0] += (L[0][1] - L[1][1] + L[2][1] - L[3][1])/6.0 + K[1][1] + K[3][1];

+			c[1] += (L[0][0] + L[1][0] - L[2][0] - L[3][0])/6.0 + K[2][0] + K[3][0];

+			c[2] += (L[0][0] - L[1][0] - L[2][0] + L[3][0])/6.0 + K[2][0] - K[3][0];

 		}

 	}

 	return all;