Add instancing distance culling, scale deformation

* GPU instance distance culling now takes a min/max range
* Fold recovers ops from material, allowing state to persist across
  editor restarts
* Add scale node to vertex deformation framework
* Remove fold presets - dumb LLM idea, unused
* Drop more "undeform" code; unused, was for ray marching, which does
  not work well
* Fix reflection energy compensation; was using cloth math, which makes
  things too bright

1 files changed, 0 insertions, 3 deletions

diff --git a/pbr.cginc b/pbr.cginc
index b7392f7..c8e58c8 100755
--- a/pbr.cginc
+++ b/pbr.cginc
@@ -146,8 +146,6 @@ void apply_marble(float3 world_pos, inout float3 albedo) {
 Pbr getPbr(v2f i) {
   Pbr pbr = (Pbr) 0;
 
-  instancing_frag(i);
-
   float3 n = normalize(i.normal);
   float3 t = normalize(i.tangent.xyz);
   t = normalize(t - n * dot(n, t));  // Gram-Schmidt to avoid skew
@@ -172,7 +170,6 @@ Pbr getPbr(v2f i) {
   pbr.metallic = imp.metallic;
 #if defined(_IMPOSTORS_DEPTH)
   pbr.objPos = imp.objPos;
-  pbr.debug = imp.debug;
 #endif
 #else
   pbr.albedo = _MainTex.Sample(aniso16_trilinear_repeat_s, uv_parallax * _MainTex_ST.xy + _MainTex_ST.zw);