1<?xml version="1.0" ?> 2<genxml name="RT" gen=""> 3 <struct name="BINDLESS_SHADER_RECORD" length="2"> 4 <field name="Offset To Local Arguments" start="0" end="2" type="uint"/> 5 <field name="Bindless Shader Dispatch Mode" start="4" end="4" type="uint"> 6 <value name="RT_SIMD16" value="0"/> 7 <value name="RT_SIMD8" value="1"/> 8 </field> 9 <field name="Kernel Start Pointer" start="6" end="31" type="offset"/> 10 </struct> 11 12 <struct name="RT_GENERAL_SBT_HANDLE" length="8"> 13 <field name="General" start="0" end="63" type="BINDLESS_SHADER_RECORD"/> 14 </struct> 15 16 <struct name="RT_TRIANGLES_SBT_HANDLE" length="8"> 17 <field name="Closest Hit" start="0" end="63" type="BINDLESS_SHADER_RECORD"/> 18 <field name="Any Hit" start="64" end="127" type="BINDLESS_SHADER_RECORD"/> 19 </struct> 20 21 <struct name="RT_PROCEDURAL_SBT_HANDLE" length="8"> 22 <field name="Closest Hit" start="0" end="63" type="BINDLESS_SHADER_RECORD"/> 23 <field name="Intersection" start="64" end="127" type="BINDLESS_SHADER_RECORD"/> 24 </struct> 25 26 <struct name="RT_SHADER_TABLE" length="2"> 27 <field name="Base Address" start="0" end="47" type="address"/> 28 <field name="Stride" start="48" end="63" type="uint"/> 29 </struct> 30 31 <struct name="RT_DISPATCH_GLOBALS" length="20"> 32 <!-- These are dictated by hardware --> 33 <field name="Mem Base Address" start="0" end="63" type="address"/> 34 <field name="Call Stack Handler" start="64" end="127" type="BINDLESS_SHADER_RECORD"/> 35 <field name="Async RT Stack Size" start="128" end="159" type="uint"/> 36 <field name="Num DSS RT Stacks" start="160" end="175" type="uint"/> 37 <field name="Max BVH Levels" start="192" end="194" type="uint"/> 38 <field name="Flags" start="224" end="224" type="uint"> 39 <value name="RT_DEPTH_TEST_LESS_EQUAL" value="1"/> 40 </field> 41 42 <!-- These are simply a software interface --> 43 <field name="Hit Group Table" start="256" end="319" type="RT_SHADER_TABLE"/> 44 <field name="Miss Group Table" start="320" end="383" type="RT_SHADER_TABLE"/> 45 <field name="SW Stack Size" start="384" end="415" type="uint"/> 46 <field name="Launch Width" start="416" end="447" type="uint"/> 47 <field name="Launch Height" start="448" end="479" type="uint"/> 48 <field name="Launch Depth" start="480" end="511" type="uint"/> 49 <field name="Callable Group Table" start="512" end="575" type="RT_SHADER_TABLE"/> 50 <field name="Resume Shader Table" start="576" end="639" type="address"/> 51 </struct> 52 53 <struct name="RT_BVH_VEC3" length="3"> 54 <field name="X" start="0" end="31" type="float"/> 55 <field name="Y" start="32" end="63" type="float"/> 56 <field name="Z" start="64" end="95" type="float"/> 57 </struct> 58 59 <struct name="RT_BVH" length="16"> 60 <field name="Root Node Offset" start="0" end="63" type="offset"/> 61 <field name="Bounds Min" start="64" end="159" type="RT_BVH_VEC3"/> 62 <field name="Bounds Max" start="160" end="255" type="RT_BVH_VEC3"/> 63 </struct> 64 65 <struct name="RT_BVH_INTERNAL_NODE" length="16"> 66 <field name="Origin" start="0" end="95" type="RT_BVH_VEC3"/> 67 <field name="Child Offset" start="96" end="127" type="int"/> 68 <field name="Node Type" start="128" end="135" type="uint" prefix="NODE_TYPE"> 69 <value name="INTERNAL" value="0"/> 70 <value name="INSTANCE" value="1"/> 71 <value name="PROCEDURAL" value="3"/> 72 <value name="QUAD" value="4"/> 73 <value name="INVALID" value="7"/> 74 </field> 75 <field name="Child Bounds Exponent X" start="144" end="151" type="int"/> 76 <field name="Child Bounds Exponent Y" start="152" end="159" type="int"/> 77 <field name="Child Bounds Exponent Z" start="160" end="168" type="int"/> 78 <field name="Node Ray Mask" start="168" end="175" type="uint"/> 79 <group count="6" start="176" size="8"> 80 <field name="Child Size" start="0" end="1" type="uint"/> 81 <field name="Child Type" start="2" end="5" type="uint"/> 82 <field name="Start Primitive" start="2" end="5" type="uint"/> 83 </group> 84 <group count="6" start="224" size="8"> 85 <field name="Child Lower X Bound" start="0" end="7" type="uint"/> 86 </group> 87 <group count="6" start="272" size="8"> 88 <field name="Child Upper X Bound" start="0" end="7" type="uint"/> 89 </group> 90 <group count="6" start="320" size="8"> 91 <field name="Child Lower Y Bound" start="0" end="7" type="uint"/> 92 </group> 93 <group count="6" start="368" size="8"> 94 <field name="Child Upper Y Bound" start="0" end="7" type="uint"/> 95 </group> 96 <group count="6" start="416" size="8"> 97 <field name="Child Lower Z Bound" start="0" end="7" type="uint"/> 98 </group> 99 <group count="6" start="464" size="8"> 100 <field name="Child Upper Z Bound" start="0" end="7" type="uint"/> 101 </group> 102 </struct> 103 104 <struct name="RT_BVH_PRIMITIVE_LEAF_DESCRIPTOR" length="2"> 105 <field name="Shader Index" start="0" end="23" type="uint"/> 106 <field name="Geometry Ray Mask" start="24" end="31" type="uint"/> 107 <field name="Geometry Index" start="32" end="60" type="uint"/> 108 <field name="Leaf Type" start="61" end="61" type="uint"> 109 <value name="TYPE_QUAD" value="0"/> 110 <value name="TYPE_OPAQUE_CULLING_ENABLED" value="0"/> 111 <value name="TYPE_OPAQUE_CULLING_DISABLED" value="1"/> 112 </field> 113 <field name="Geometry Flags" start="62" end="63" type="uint"> 114 <value name="GEOMETRY_OPAQUE" value="1"/> 115 </field> 116 </struct> 117 118 <struct name="RT_BVH_QUAD_LEAF" length="16"> 119 <field name="Leaf Descriptor" start="0" end="63" type="RT_BVH_PRIMITIVE_LEAF_DESCRIPTOR"/> 120 <field name="Primitive Index 0" start="64" end="95" type="uint"/> 121 <field name="Primitive Index 1 Delta" start="96" end="112" type="uint"/> 122 <field name="j0" start="112" end="113" type="uint"/> 123 <field name="j1" start="114" end="115" type="uint"/> 124 <field name="j2" start="116" end="117" type="uint"/> 125 <field name="Last Quad" start="118" end="118" type="bool"/> 126 <group count="4" start="128" size="96"> 127 <field name="Quad Vertex" start="0" end="95" type="RT_BVH_VEC3"/> 128 </group> 129 </struct> 130 131 <struct name="RT_BVH_INSTANCE_LEAF" length="32"> 132 <field name="Shader Index" start="0" end="23" type="uint"/> 133 <field name="Geometry Ray Mask" start="24" end="31" type="uint"/> 134 <field name="Instance Contribution To Hit Group Index" start="32" end="55" type="uint"/> 135 <field name="Leaf Type" start="61" end="61" type="uint"> 136 <value name="TYPE_OPAQUE_CULLING_ENABLED" value="0"/> 137 <value name="TYPE_OPAQUE_CULLING_DISABLED" value="1"/> 138 </field> 139 <field name="Geometry Flags" start="62" end="63" type="uint"> 140 <value name="GEOMETRY_OPAQUE" value="1"/> 141 </field> 142 <field name="Start Node Address" start="64" end="111" type="address"/> 143 <field name="Instance Flags" start="112" end="119" type="uint"> 144 <value name="TRIANGLE_CULL_DISABLE" value="1"/> 145 <value name="TRIANGLE_FRONT_COUNTERCLOCKWISE" value="2"/> 146 <value name="FORCE_OPAQUE" value="4"/> 147 <value name="FORCE_NON_OPAQUE" value="8"/> 148 </field> 149 <field name="World To Object m00" start="128" end="159" type="float"/> 150 <field name="World To Object m01" start="160" end="191" type="float"/> 151 <field name="World To Object m02" start="192" end="223" type="float"/> 152 <field name="World To Object m10" start="224" end="255" type="float"/> 153 <field name="World To Object m11" start="256" end="287" type="float"/> 154 <field name="World To Object m12" start="288" end="319" type="float"/> 155 <field name="World To Object m20" start="320" end="351" type="float"/> 156 <field name="World To Object m21" start="352" end="383" type="float"/> 157 <field name="World To Object m22" start="384" end="415" type="float"/> 158 <field name="Object To World m30" start="416" end="447" type="float"/> 159 <field name="Object To World m31" start="448" end="479" type="float"/> 160 <field name="Object To World m32" start="480" end="511" type="float"/> 161 <field name="BVH Address" start="512" end="559" type="address"/> 162 <field name="Instance ID" start="576" end="607" type="uint"/> 163 <field name="Instance Index" start="608" end="639" type="uint"/> 164 <field name="Object To World m00" start="640" end="671" type="float"/> 165 <field name="Object To World m01" start="672" end="703" type="float"/> 166 <field name="Object To World m02" start="704" end="735" type="float"/> 167 <field name="Object To World m10" start="736" end="767" type="float"/> 168 <field name="Object To World m11" start="768" end="799" type="float"/> 169 <field name="Object To World m12" start="800" end="831" type="float"/> 170 <field name="Object To World m20" start="832" end="863" type="float"/> 171 <field name="Object To World m21" start="864" end="895" type="float"/> 172 <field name="Object To World m22" start="896" end="927" type="float"/> 173 <field name="World To Object m30" start="928" end="959" type="float"/> 174 <field name="World To Object m31" start="960" end="991" type="float"/> 175 <field name="World To Object m32" start="992" end="1023" type="float"/> 176 </struct> 177 178 <struct name="RT_BVH_PROCEDURAL_LEAF" length="16"> 179 <field name="Leaf Descriptor" start="0" end="63" type="RT_BVH_PRIMITIVE_LEAF_DESCRIPTOR"/> 180 181 <!-- Software defined --> 182 <field name="Num Primitives" start="64" end="67" type="uint"/> 183 <field name="Last Primitive" start="83" end="95" type="uint"/> 184 <group count="13" start="96" size="32"> 185 <field name="Primitive Index" start="0" end="31" type="uint"/> 186 </group> 187 </struct> 188</genxml> 189