1 files changed, 64 insertions, 0 deletions
diff --git a/NvBlast/samples/resources/shaders/physx_primitive_plane.hlsl b/NvBlast/samples/resources/shaders/physx_primitive_plane.hlsl
new file mode 100644
index 0000000..3b2ec5d
--- /dev/null
+++ b/NvBlast/samples/resources/shaders/physx_primitive_plane.hlsl
@@ -0,0 +1,64 @@
+#include "common_buffers.hlsl"
+#include "lighting.hlsl"
+
+struct VS_INPUT
+{
+	float3 position : POSITION0;
+	float3 normal : NORMAL0;
+	float2 uv : TEXCOORD0;
+};
+
+struct VS_OUTPUT
+{
+	float4 position : SV_POSITION;
+	float4 worldPos : POSITION0;
+	float2 uv : TEXCOORD0;
+	float3 normal : NORMAL0;
+};
+
+float filterwidth(float2 v)
+{
+  float2 fw = max(abs(ddx(v)), abs(ddy(v)));
+  return max(fw.x, fw.y);
+}
+
+float2 bump(float2 x) 
+{
+	return (floor(x/2) + 2.f * max((x/2) - floor(x/2) - .5f, 0.f)); 
+}
+
+float checker(float2 uv)
+{
+  float width = filterwidth(uv);
+  float2 p0 = uv - 0.5 * width;
+  float2 p1 = uv + 0.5 * width;
+  
+  float2 i = (bump(p1) - bump(p0)) / width;
+  return i.x * i.y + (1 - i.x) * (1 - i.y);
+}
+
+VS_OUTPUT VS(VS_INPUT iV)
+{
+	VS_OUTPUT oV;
+
+	float4 worldSpacePos = mul(float4(iV.position, 1.0f), model);
+	oV.position = mul(worldSpacePos, viewProjection);
+
+	oV.uv = iV.uv;
+
+	oV.worldPos = worldSpacePos;
+
+	// normals
+	float3 worldNormal = mul(iV.normal,  (float3x3)model);
+	oV.normal = worldNormal;
+
+	return oV;
+}
+
+float4 PS(VS_OUTPUT iV) : SV_Target0
+{
+	float4 color = defaultColor;
+	color *= 1.0 - 0.25 * checker(iV.uv);
+	float3 lightColor = CalcPixelLight(color.xyz, iV.worldPos.xyz, iV.normal);	
+	return float4(lightColor, 1);
+}
+\ No newline at end of file