1 files changed, 20 insertions, 0 deletions
diff --git a/pacc/hlsl/key.ps.hlsl b/pacc/hlsl/key.ps.hlsl
new file mode 100644
index 0000000..0ca9efd
--- /dev/null
+++ b/pacc/hlsl/key.ps.hlsl
@@ -0,0 +1,20 @@
+struct psinput {
+  float4 texcoord: TEXCOORD;
+};
+
+struct psoutput {
+  float4 fragcolor: COLOR;
+};
+
+sampler palette: register(s0);
+sampler tex: register(s1);
+float uni_key: register(c0);
+float color: register(c1);
+
+psoutput key(psinput input) {
+  psoutput output;
+  float index = tex2D(tex, input.texcoord.xy).r;
+  if (index < (uni_key + (0.5/255.0)) || (uni_key + (1.5/255.0)) < index) discard;
+  output.fragcolor = tex1D(palette, color);
+  return output;
+}