Fix a froxelization bug

we would be short by one froxel on the left, usually this wasn't a problem due to the light falloff.
2020-04-15 22:00:10 -07:00
parent 8ae8dd59b1
commit afade93bad
1 changed files with 3 additions and 1 deletions
@@ -856,7 +856,9 @@ void Froxelizer::froxelizePointAndSpotLight(
                    // find the begin index (left side)
                    for (bx = x0; bx <= xcenter; ++bx) {
                        if (spherePlaneDistanceSquared(cy, planesX[bx].x, planesX[bx].z) > 0) {
-                            // intersection
+                            // intersection, if we intersect with a plane at index bx, we
+                            // actually intrude in the froxel to its left, i.e. with index bx - 1
+                            bx -= bx > 0;
                            break;
                        }
                    }