R26_dev8 - First public commit

Shaders/BoundingSphereVS.hlsl

@@ -0,0 +1,32 @@
+#include "Common.hlsli"
+
+cbuffer VSSceneVars : register(b0)
+{
+    float4x4 ViewProj;
+    float4x4 ViewInv;
+    float SegmentCount;
+    float VertexCount;
+    float Pad1;
+    float Pad2;
+}
+cbuffer VSSphereVars : register(b1)
+{
+    float3 Center;
+    float Radius;
+}
+
+
+float4 main(uint id : SV_VertexID) : SV_POSITION
+{
+    static const float twopi = 6.283185307179586476925286766559;
+    uint seg = id;
+    float t = twopi*((float)seg)/SegmentCount;
+    float ct = cos(t);
+    float st = sin(t);
+    float r = Radius;
+    float3 o = float3(ct*r, st*r, 0);
+    float3 f = Center.xyz + mul(o, (float3x3)ViewInv);
+    float4 cpos = mul(float4(f,1), ViewProj);
+    cpos.z = DepthFunc(cpos.zw);
+    return cpos;
+}