Fix triangle lighting in native renderer.

PiperOrigin-RevId: 841796563 Change-Id: I778e0e02aa8b4033531d4fadc091610418ab909e
2025-12-08 09:26:02 -08:00
parent 15145c0098
commit 735b31fc89
1 changed files with 1 additions and 0 deletions
@@ -448,6 +448,7 @@ static void renderGeom(const mjvGeom* geom, int mode, const float* headpos,
  case mjGEOM_TRIANGLE:                       // triangle
    glDisable(GL_CULL_FACE);
    glBegin(GL_TRIANGLES);
+    glNormal3f(0, 0, 1);
    glVertex3f(0, 0, 0);
    glVertex3f(size[0], 0, 0);
    glVertex3f(0, size[1], 0);