Update rshapes.c

src/rshapes.c

@@ -1432,6 +1432,7 @@ void DrawTriangle(Vector2 v1, Vector2 v2, Vector2 v3, Color color)
     Rectangle shapeRect = GetShapesTextureRectangle();
 
     rlBegin(RL_QUADS);
+        rlNormal3f(0.0f, 0.0f, 1.0f);
         rlColor4ub(color.r, color.g, color.b, color.a);
 
         rlTexCoord2f(shapeRect.x/texShapes.width, shapeRect.y/texShapes.height);
@@ -1441,7 +1442,7 @@ void DrawTriangle(Vector2 v1, Vector2 v2, Vector2 v3, Color color)
         rlVertex2f(v2.x, v2.y);
 
         rlTexCoord2f((shapeRect.x + shapeRect.width)/texShapes.width, (shapeRect.y + shapeRect.height)/texShapes.height);
-        rlVertex2f(v2.x, v2.y);
+        rlVertex2f(v3.x, v3.y);
 
         rlTexCoord2f((shapeRect.x + shapeRect.width)/texShapes.width, shapeRect.y/texShapes.height);
         rlVertex2f(v3.x, v3.y);