init

gamedata/shaders/d3d11/fluid_grid_oobb.vs.hlsl

@@ -0,0 +1,49 @@
+#include "fluid_common.hlsli"
+
+//	Vertex
+v2g_fluidsim_clip main(v_fluidsim input)
+{
+    v2g_fluidsim_clip output = (v2g_fluidsim_clip)0;
+
+    output.pos = float4(input.position.x, input.position.y, input.position.z, 1.0);
+    output.cell0 = float3(input.textureCoords0.x, input.textureCoords0.y, input.textureCoords0.z);
+    output.texcoords = float3((input.textureCoords0.x) / (textureWidth),
+        (input.textureCoords0.y) / (textureHeight),
+        (input.textureCoords0.z + 0.5) / (textureDepth));
+
+    float x = output.texcoords.x;
+    float y = output.texcoords.y;
+    float z = output.texcoords.z;
+
+    // compute single texel offsets in each dimension
+    float invW = 1.0 / textureWidth;
+    float invH = 1.0 / textureHeight;
+    float invD = 1.0 / textureDepth;
+
+    output.LR = float2(x - invW, x + invW);
+    output.BT = float2(y - invH, y + invH);
+    output.DU = float2(z - invD, z + invD);
+
+    //	float3	clip0				: SV_ClipDistance0;
+    //	float3	clip1				: SV_ClipDistance1;
+    // for (int i = 0; i < 3; ++i)
+    // {
+        // output.clip0[i] = dot(float4(output.cell0, 1), OOBBClipPlane[i]);
+        // output.clip1[i] = dot(float4(output.cell0, 1), OOBBClipPlane[i + 3]);
+        // //	Make box a voxel bigger in each direction
+        // //	BOX_EXPANSION - voxel diagonal length
+        // // output.clip0[i] += BOX_EXPANSION;
+        // // output.clip1[i] += BOX_EXPANSION;
+    // }
+	
+	output.clip0.x = dot(float4(output.cell0, 1), OOBBClipPlane[0]);
+	output.clip0.y = dot(float4(output.cell0, 1), OOBBClipPlane[1]);
+	output.clip0.z = dot(float4(output.cell0, 1), OOBBClipPlane[2]);
+	
+	output.clip1.x = dot(float4(output.cell0, 1), OOBBClipPlane[3]);
+	output.clip1.y = dot(float4(output.cell0, 1), OOBBClipPlane[4]);
+	output.clip1.z = dot(float4(output.cell0, 1), OOBBClipPlane[5]);
+
+    return output;
+}
+