lay out separate geomtries along the X-axis

Author: devsh

12_MeshLoaders/main.cpp

@@ -268,8 +268,13 @@ class MeshLoadersApp final : public MonoWindowApplication, public BuiltinResourc
 			}
 			if (geometries.empty())
 				return false;
-			
-			auto bound = hlsl::shapes::AABB<3,double>::create();
+
+			using aabb_t = hlsl::shapes::AABB<3,double>;
+			auto printAABB = [&](const aabb_t& aabb, const char* extraMsg="")->void
+			{
+				m_logger->log("%s AABB is (%f,%f,%f) -> (%f,%f,%f)",ILogger::ELL_INFO,extraMsg,aabb.minVx.x,aabb.minVx.y,aabb.minVx.z,aabb.maxVx.x,aabb.maxVx.y,aabb.maxVx.z);
+			};
+			auto bound = aabb_t::create();
 			// convert the geometries
 			{
 				smart_refctd_ptr<CAssetConverter> converter = CAssetConverter::create({.device=m_device.get()});
@@ -344,36 +349,47 @@ class MeshLoadersApp final : public MonoWindowApplication, public BuiltinResourc
 						return false;
 					}
 				}
-
+				
+				auto tmp = hlsl::float32_t4x3(
+					hlsl::float32_t3(1,0,0),
+					hlsl::float32_t3(0,1,0),
+					hlsl::float32_t3(0,0,1),
+					hlsl::float32_t3(0,0,0)
+				);
+				core::vector<hlsl::float32_t3x4> worldTforms;
 				const auto& converted = reservation.getGPUObjects<ICPUPolygonGeometry>();
 				for (const auto& geom : converted)
 				{
-					geom.value->visitAABB([&bound](const auto& aabb)->void
+					geom.value->visitAABB([&bound,&worldTforms,&tmp,&printAABB](const auto& aabb)->void
 						{
 							hlsl::shapes::AABB<3,double> promoted;
 							promoted.minVx = aabb.minVx;
 							promoted.maxVx = aabb.maxVx;
-							bound = hlsl::shapes::util::union_(promoted,bound);
+							printAABB(promoted,"Geometry");
+							tmp[3].x += promoted.getExtent().x;
+							const auto promotedWorld = hlsl::float64_t3x4(worldTforms.emplace_back(hlsl::transpose(tmp)));
+							const auto transformed = hlsl::shapes::util::transform(promotedWorld,promoted);
+							printAABB(transformed,"Transformed");
+							bound = hlsl::shapes::util::union_(transformed,bound);
 						}
 					);
 				}
+				printAABB(bound,"Total");
 				if (!m_renderer->addGeometries({ &converted.front().get(),converted.size() }))
 					return false;
+
+				auto worlTformsIt = worldTforms.begin();
 				for (const auto& geo : m_renderer->getGeometries())
 					m_renderer->m_instances.push_back({
-						.world = hlsl::float32_t3x4(
-							hlsl::float32_t4(1,0,0,0),
-							hlsl::float32_t4(0,1,0,0),
-							hlsl::float32_t4(0,0,1,0)
-						),
+						.world = *(worlTformsIt++),
 						.packedGeo = &geo
 					});
 			}
 
 			// get scene bounds and reset camera
 			{
 				const double distance = 0.05;
-				const auto diagonal = bound.maxVx-bound.minVx;
+				const auto diagonal = bound.getExtent();
 				{
 					const auto measure = hlsl::length(diagonal);
 					const auto aspectRatio = float(m_window->getWidth())/float(m_window->getHeight());