set default value for point size register

src/video_core/engines/maxwell_3d.cpp

@@ -66,6 +66,9 @@ void Maxwell3D::InitializeRegisterDefaults() {
     regs.stencil_back_func_func = Regs::ComparisonOp::Always;
     regs.stencil_back_func_mask = 0xFFFFFFFF;
     regs.stencil_back_mask = 0xFFFFFFFF;
+    // TODO(Rodrigo): Most games do not set a point size. I think this is a case of a
+    // register carrying a default value. Assume it's OpenGL's default (1).
+    regs.point_size = 1.0f;
 }
 
 void Maxwell3D::CallMacroMethod(u32 method, std::vector<u32> parameters) {

src/video_core/renderer_opengl/gl_rasterizer.cpp

@@ -1119,11 +1119,7 @@ void RasterizerOpenGL::SyncTransformFeedback() {
 
 void RasterizerOpenGL::SyncPointState() {
     const auto& regs = Core::System::GetInstance().GPU().Maxwell3D().regs;
-
-    // TODO(Rodrigo): Most games do not set a point size. I think this is a case of a
-    // register carrying a default value. For now, if the point size is zero, assume it's
-    // OpenGL's default (1).
-    state.point.size = regs.point_size == 0 ? 1 : regs.point_size;
+    state.point.size = regs.point_size;
 }
 
 void RasterizerOpenGL::CheckAlphaTests() {