From 55988df821de8c6bbe22ace451efa1337cdc1680 Mon Sep 17 00:00:00 2001 From: Mike Date: Tue, 23 Apr 2024 18:08:50 +0800 Subject: [PATCH] add error messages for CUDA/CPU backends with mega-wave integrator (#28) --- src/integrators/megawave.cpp | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/src/integrators/megawave.cpp b/src/integrators/megawave.cpp index e07de707..4e7fb8cb 100644 --- a/src/integrators/megawave.cpp +++ b/src/integrators/megawave.cpp @@ -266,6 +266,13 @@ class MegakernelWaveFrontInstance final : public ProgressiveIntegrator::Instance }; luisa::unique_ptr MegakernelWaveFront::build(Pipeline &pipeline, CommandBuffer &command_buffer) const noexcept { + if (auto backend = luisa::string{pipeline.device().backend_name()}; backend == "cuda" || backend == "cpu") { + for (auto &c : backend) { c = static_cast(std::toupper(c)); } + LUISA_ERROR_WITH_LOCATION("The {} backend does not support the 'meagwave' integrator: " + "thread-block synchronization is not supported inside " + "ray-tracing kernels on this backend. " + "You can use 'megapath' or 'wavepath' instead.", backend); + } return luisa::make_unique(pipeline, command_buffer, this); }