New lightmapper

-Added LocalVector (needed it)
-Added stb_rect_pack (It's pretty cool, we could probably use it for other stuff too)
-Fixes and changes all around the place
-Added library for 128 bits fixed point (required for Delaunay3D)

modules/denoise/denoise_wrapper.cpp

@@ -0,0 +1,34 @@
+#include "denoise_wrapper.h"
+#include "thirdparty/oidn/include/OpenImageDenoise/oidn.h"
+#include <stdio.h>
+
+void *oidn_denoiser_init() {
+	OIDNDeviceImpl *device = oidnNewDevice(OIDN_DEVICE_TYPE_CPU);
+	oidnCommitDevice(device);
+	return device;
+}
+
+bool oidn_denoise(void *deviceptr, float *p_floats, int p_width, int p_height) {
+	OIDNDeviceImpl *device = (OIDNDeviceImpl *)deviceptr;
+	OIDNFilter filter = oidnNewFilter(device, "RTLightmap");
+	oidnSetSharedFilterImage(filter, "color", (void *)p_floats, OIDN_FORMAT_FLOAT3, p_width, p_height, 0, 0, 0);
+	oidnSetSharedFilterImage(filter, "output", (void *)p_floats, OIDN_FORMAT_FLOAT3, p_width, p_height, 0, 0, 0);
+	oidnSetFilter1b(filter, "hdr", true);
+	//oidnSetFilter1f(filter, "hdrScale", 1.0f);
+	oidnCommitFilter(filter);
+	oidnExecuteFilter(filter);
+
+	const char *msg;
+	bool success = true;
+	if (oidnGetDeviceError(device, &msg) != OIDN_ERROR_NONE) {
+		printf("LightmapDenoiser: %s\n", msg);
+		success = false;
+	}
+
+	oidnReleaseFilter(filter);
+	return success;
+}
+
+void oidn_denoiser_finish(void *device) {
+	oidnReleaseDevice((OIDNDeviceImpl *)device);
+}