Fix for bug #13363: ray (qmc) shadows had some light leaking issues,

due to jittering of the start position for antialiasing in a pixel.

Now it distributes the start position over the fixed osa sample
positions, instead of of random positions in space. The ugly bit is
that a custom ordering was defined for osa 8/11/16 to ensure that the
first 4 are distributed relatively fair for adaptive sampling to decide
if more samples need to be taken.

1 files changed, 2 insertions, 1 deletions

diff --git a/source/blender/render/intern/include/shading.h b/source/blender/render/intern/include/shading.h
index 6f1cb8dd7a9..54311d2515a 100644
--- a/source/blender/render/intern/include/shading.h
+++ b/source/blender/render/intern/include/shading.h
@@ -56,7 +56,8 @@ void shade_material_loop(struct ShadeInput *shi, struct ShadeResult *shr);
 void shade_input_set_triangle_i(struct ShadeInput *shi, struct ObjectInstanceRen *obi, struct VlakRen *vlr, short i1, short i2, short i3);
 void shade_input_set_triangle(struct ShadeInput *shi, volatile int obi, volatile int facenr, int normal_flip);
 void shade_input_copy_triangle(struct ShadeInput *shi, struct ShadeInput *from);
-void shade_input_set_viewco(struct ShadeInput *shi, float x, float y, float z);
+void shade_input_calc_viewco(struct ShadeInput *shi, float x, float y, float z, float *view, float *dxyview, float *co, float *dxco, float *dyco);
+void shade_input_set_viewco(struct ShadeInput *shi, float x, float y, float sx, float sy, float z);
 void shade_input_set_uv(struct ShadeInput *shi);
 void shade_input_set_normals(struct ShadeInput *shi);
 void shade_input_flip_normals(struct ShadeInput *shi);