Impostors: combine metallic gloss & depth atlases

1 files changed, 4 insertions, 3 deletions

diff --git a/impostor.cginc b/impostor.cginc
index 048eaf6..1afbdea 100755
--- a/impostor.cginc
+++ b/impostor.cginc
@@ -108,7 +108,7 @@ AtlasUvGrad PrepareAtlasUvGrad(float2 cell, float2 uvInCell, float invGridRes) {
 
 float SampleImpostorDepthCell(float2 cell, float2 uvInCell, float invGridRes) {
     AtlasUvGrad uv = PrepareAtlasUvGrad(cell, uvInCell, invGridRes);
-    return _Impostors_Depth_Atlas.SampleGrad(bilinear_clamp_s, uv.atlasUv, uv.gradX, uv.gradY).r;
+    return _Impostors_Metallic_Gloss_Depth_Atlas.SampleGrad(bilinear_clamp_s, uv.atlasUv, uv.gradX, uv.gradY).b;
 }
 
 float SampleImpostorAlphaCell(float2 cell, float2 uvInCell, float invGridRes) {
@@ -121,7 +121,8 @@ ImpostorSample SampleImpostorCell(float2 cell, float2 uvInCell, float invGridRes
     ImpostorSample s;
     s.albedo = _Impostors_Atlas.SampleGrad(bilinear_clamp_s, uv.atlasUv, uv.gradX, uv.gradY);
     s.normal = _Impostors_Normal_Atlas.SampleGrad(bilinear_clamp_s, uv.atlasUv, uv.gradX, uv.gradY);
-    s.metallicGloss = _Impostors_Metallic_Gloss_Atlas.SampleGrad(bilinear_clamp_s, uv.atlasUv, uv.gradX, uv.gradY);
+    float4 mgd = _Impostors_Metallic_Gloss_Depth_Atlas.SampleGrad(bilinear_clamp_s, uv.atlasUv, uv.gradX, uv.gradY);
+    s.metallicGloss = float4(mgd.rg, 0, 0);
     return s;
 }
 
@@ -331,7 +332,7 @@ ImpostorResult impostor_frag(float3 worldPos) {
     float3 normalOS = blended.normal.xyz * 2.0 - 1.0;
     result.normal = normalize(mul((float3x3)unity_ObjectToWorld, normalOS));
     result.metallic = blended.metallicGloss.r;
-    result.smoothness = blended.metallicGloss.a;
+    result.smoothness = blended.metallicGloss.g;
 
 #if defined(_IMPOSTORS_DEPTH)
     // Reuse depth samples for position reconstruction