Initial commit

internal/render/gpu_preference/gpu_preference.c

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+
+// define the two symbols on Windows so that application
+// could benefit from using the more powerful discrete GPU
+
+#if defined (_WIN32)
+
+__declspec(dllexport) unsigned long NvOptimusEnablement = 1;
+__declspec(dllexport) unsigned long AmdPowerXpressRequestHighPerformance = 1;
+
+#endif

internal/render/gpu_preference/gpu_preference.go

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+package gpu_preference
+
+import "C"

internal/render/gpu_preference/linux_nvidia.go

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+//+build nvidia
+
+package gpu_preference
+
+import (
+	"os"
+	"runtime"
+)
+
+func init() {
+	if runtime.GOOS == "linux" {
+		os.Setenv("__NV_PRIME_RENDER_OFFLOAD", "1")
+		os.Setenv("__GLX_VENDOR_LIBRARY_NAME", "nvidia")
+	}
+}