Simplify geometry to reduce AABB precision issues

AABBs are allowed to hit conservatively for precision reasons, which was
causing failures in some cases. Extremely simplify the geometry to make
it very unlikely that we'll get false hits.

Affects:

dEQP-VK.ray_tracing_pipeline.misc.recursiveTraces*

Components: Vulkan
VK-GL-CTS issue: 2444

Change-Id: Ie8a9ffde2761354a395c6367e6bca8145a22bbf3

diff --git a/external/vulkancts/modules/vulkan/ray_tracing/vktRayTracingMiscTests.cpp b/external/vulkancts/modules/vulkan/ray_tracing/vktRayTracingMiscTests.cpp
index 5a06634..78797f5 100644 (file)
--- a/external/vulkancts/modules/vulkan/ray_tracing/vktRayTracingMiscTests.cpp
+++ b/external/vulkancts/modules/vulkan/ray_tracing/vktRayTracingMiscTests.cpp
@@ -6083,7 +6083,7 @@ public:
                std::unique_ptr<GridASProvider> asProviderPtr(
                        new GridASProvider(     tcu::Vec3 (0,                                   0,      0),                             /* gridStartXYZ          */
                                                                tcu::Vec3 (1,                                   1,      1),                             /* gridCellSizeXYZ       */
-                                                               tcu::UVec3(1 + m_depthToUse,    1,      m_nRaysToTest),
+                                                               tcu::UVec3(1,                                   1,      1),
                                                                tcu::Vec3 (2,                                   0,      2),                             /* gridInterCellDeltaXYZ */
                                                                m_geometryType)
                );
@@ -6223,7 +6223,7 @@ public:
                                                "        currentNOriginRay = parentNOriginRay;\n"
                                                "        currentResultItem = nItem;\n"
                                                "\n"
-                                               "        vec3  cellStartXYZ  = vec3(parentDepth * 2.0, 0.0, parentNOriginRay * 2.0);\n"
+                                               "        vec3  cellStartXYZ  = vec3(0.0, 0.0, 0.0);\n"
                                                "        vec3  cellEndXYZ    = cellStartXYZ + vec3(1.0);\n"
                                                "        vec3  targetHit     = mix(cellStartXYZ, cellEndXYZ, vec3(0.5) );\n"
                                                "        vec3  targetMiss    = targetHit + vec3(0, 10, 0);\n"
@@ -6318,7 +6318,7 @@ public:
                                                "        currentNOriginRay = parentNOriginRay;\n"
                                                "        currentResultItem = nItem;\n"
                                                "\n"
-                                               "        vec3  cellStartXYZ  = vec3(parentDepth * 2.0, 0.0, parentNOriginRay * 2.0);\n"
+                                               "        vec3  cellStartXYZ  = vec3(0.0, 0.0, 0.0);\n"
                                                "        vec3  cellEndXYZ    = cellStartXYZ + vec3(1.0);\n"
                                                "        vec3  targetHit     = mix(cellStartXYZ, cellEndXYZ, vec3(0.5) );\n"
                                                "        vec3  targetMiss    = targetHit + vec3(0, 10, 0);\n"
@@ -6364,7 +6364,7 @@ public:
                                "    float tmax         = 9.0;\n"
                                "\n"
                                "    uint  cullMask      = 0xFF;\n"
-                               "    vec3  cellStartXYZ  = vec3(0.0, 0.0, nInvocation * 2.0);\n"
+                               "    vec3  cellStartXYZ  = vec3(0.0, 0.0, 0.0);\n"
                                "    vec3  cellEndXYZ    = cellStartXYZ + vec3(1.0);\n"
                                "    vec3  targetHit     = mix(cellStartXYZ, cellEndXYZ, vec3(0.5) );\n"
                                "    vec3  targetMiss    = targetHit + vec3(0, 10, 0);\n"