Dynamic shadows artifacts

[anonymous_user_c94f194d]

GetScreenSpaceData has non trivial cost associated with it. Suggest that you replace it with a function, that would grab only normals from gbuffer(or at least double check, if unused parts of it are compiled out of ASM. I believe they are not.), as well as exposing constants on that lerp for control, but overall, that would be a feasible temporary workaround. There are other potential uses for surface normal during shadow filtering btw.

There is ASM diff.
Untitled diff - Diff Checker

Actual code that is added is pretty short.

 15: sample_l(texture2d)(float,float,float,float) r2.xyz, r0.xyxx, t0.xyzw, s0, l(0)
  16: mad r2.xyz, r2.xyzx, l(2.000000, 2.000000, 2.000000, 0.000000), l(-1.000000, -1.000000, -1.000000, 0.000000)
  17: dp3 r1.w, r2.xyzx, r2.xyzx
  18: rsq r1.w, r1.w
  19: mul r2.xyz, r1.wwww, r2.xyzx
  20: dp3_sat r1.w, r2.xyzx, cb2[2].xyzx
  21: mad r1.w, r1.w, l(0.900000), l(0.100000)
  22: mul r1.w, r1.w, cb0[0].z