Fix bug in Draco encoding for glTF, files are now smaller

Data was not quantified properly. It also lets the library choose the suitable
encoding method rather than forcing it to use the edgebreaker method.

Differential Revision: https://developer.blender.org/D6183

1 files changed, 3 insertions, 4 deletions

diff --git a/extern/draco/src/draco-compressor.cpp b/extern/draco/src/draco-compressor.cpp
index 9e63b8d35cb..3262a2c4d4d 100644
--- a/extern/draco/src/draco-compressor.cpp
+++ b/extern/draco/src/draco-compressor.cpp
@@ -38,6 +38,7 @@
 #include "draco/point_cloud/point_cloud.h"
 #include "draco/core/vector_d.h"
 #include "draco/io/mesh_io.h"
+#include "draco/compression/encode.h"
 
 #if defined(_MSC_VER)
 #define DLL_EXPORT(retType) extern "C" __declspec(dllexport) retType __cdecl
@@ -158,16 +159,14 @@ DLL_EXPORT(bool) compress(
     printf("%s: Normal quantization bits:   %d\n", logTag, compressor->quantizationBitsNormal);
     printf("%s: Position quantization bits: %d\n", logTag, compressor->quantizationBitsTexCoord);
 
-    draco::ExpertEncoder encoder(compressor->mesh);
+    draco::Encoder encoder;
 
     encoder.SetSpeedOptions(10 - compressor->compressionLevel, 10 - compressor->compressionLevel);
     encoder.SetAttributeQuantization(draco::GeometryAttribute::POSITION, compressor->quantizationBitsPosition);
     encoder.SetAttributeQuantization(draco::GeometryAttribute::NORMAL, compressor->quantizationBitsNormal);
     encoder.SetAttributeQuantization(draco::GeometryAttribute::TEX_COORD, compressor->quantizationBitsTexCoord);
 
-    encoder.SetEncodingMethod(draco::MESH_EDGEBREAKER_ENCODING);
-
-    draco::Status result = encoder.EncodeToBuffer(&compressor->encoderBuffer);
+    draco::Status result = encoder.EncodeMeshToBuffer(compressor->mesh, &compressor->encoderBuffer);
 
     if(!result.ok()) {
         printf("%s: Could not compress mesh: %s\n", logTag, result.error_msg());