Support multiple tangents for BI render & viewport

Normal Map node support for GLSL mode and the internal render (multiple tangents support).

The Normal Map node is a useful node which is present in the Cycles render.
It makes it possible to use normal mapping without additional material node in a node tree.
This patch implements Normal Map node for GLSL mode and the internal render.

Previously only the active UV layer was used to calculate tangents.

1 files changed, 1 insertions, 1 deletions

diff --git a/source/gameengine/Converter/BL_BlenderDataConversion.cpp b/source/gameengine/Converter/BL_BlenderDataConversion.cpp
index c2cfd8808a9..ec99de45918 100644
--- a/source/gameengine/Converter/BL_BlenderDataConversion.cpp
+++ b/source/gameengine/Converter/BL_BlenderDataConversion.cpp
@@ -962,7 +962,7 @@ RAS_MeshObject* BL_ConvertMesh(Mesh* mesh, Object* blenderobj, KX_Scene* scene,
 		if (CustomData_get_layer_index(&dm->faceData, CD_TANGENT) == -1) {
 			bool generate_data = false;
 			if (CustomData_get_layer_index(&dm->loopData, CD_TANGENT) == -1) {
-				DM_calc_loop_tangents(dm);
+				DM_calc_loop_tangents(dm, true, NULL, 0);
 				generate_data = true;
 			}
 			DM_generate_tangent_tessface_data(dm, generate_data);