54 lines
1.7 KiB
Plaintext
54 lines
1.7 KiB
Plaintext
#version 460
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#extension GL_NV_ray_tracing : enable
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#extension GL_EXT_ray_query : enable
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struct Ray
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{
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vec3 pos;
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float tmin;
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vec3 dir;
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float tmax;
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};
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layout(binding = 0, set = 0) uniform accelerationStructureNV rtas;
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layout(std430, set = 0, binding = 2) buffer Rays { Ray rays[]; };
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layout(shaderRecordNV) buffer block
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{
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uint idx;
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};
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uint launchIndex()
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{
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return gl_LaunchIDNV.z*gl_LaunchSizeNV.x*gl_LaunchSizeNV.y + gl_LaunchIDNV.y*gl_LaunchSizeNV.x + gl_LaunchIDNV.x;
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}
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rayQueryEXT g_rayQueryArray[4];
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rayQueryEXT g_rayQueryUnused;
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void main()
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{
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uint index = launchIndex();
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Ray ray = rays[index];
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rayQueryEXT rayQuery0a;
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rayQueryEXT rayQuery0b;
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g_rayQueryArray[idx] = rayQuery0b; // Stored here, then overwritten with rayQuery0a
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g_rayQueryArray[idx] = rayQuery0a;
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// No separate allocation, just a handle copy
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// optimizations should have eliminated load from global array
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rayQueryEXT rayQuery0c = g_rayQueryArray[idx];
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// rayQuery0a is the one actually used here
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rayQueryInitializeEXT(rayQuery0c, rtas, gl_RayFlagsOpaqueEXT, gl_RayFlagsCullBackFacingTrianglesEXT, ray.pos, ray.tmin, ray.dir, ray.tmax);
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// AllocateRayQuery occurs here, rather than next to allocas
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// Should not be extray allocate, since above should allocate and copy
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rayQueryEXT rayQuery1c;
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// update the rayFlags as RAY_FLAG_FORCE_OPAQUE
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rayQueryInitializeEXT(rayQuery1c, rtas, gl_RayFlagsOpaqueEXT, gl_RayFlagsCullFrontFacingTrianglesEXT, ray.pos, ray.tmin, ray.dir, ray.tmax);
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rayQueryInitializeEXT(rayQuery1c, rtas, gl_RayFlagsOpaqueEXT|gl_RayFlagsNoOpaqueEXT, gl_RayFlagsCullOpaqueEXT, ray.pos, ray.tmin, ray.dir, ray.tmax);
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}
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