Add hint for GL

Author: deprilula28

include/nbl/video/SPhysicalDeviceFeatures.h

@@ -506,7 +506,7 @@ struct SPhysicalDeviceFeatures
     bool           rectangularLines = false;
     bool           bresenhamLines = false;
     bool           smoothLines = false;
-    // GL HINT (remove when implemented): !IsGLES for all stipples
+    // end of hint
     bool           stippledRectangularLines = false;
     bool           stippledBresenhamLines = false;
     bool           stippledSmoothLines = false;

src/nbl/video/IOpenGL_PhysicalDeviceBase.h

@@ -804,7 +804,11 @@ class IOpenGL_PhysicalDeviceBase : public IOpenGLPhysicalDeviceBase
 			m_features.samplerFilterMinmax = false; // no such sampler in GL
 			m_features.shaderSubgroupExtendedTypes = m_glfeatures.isFeatureAvailable(COpenGLFeatureMap::NBL_AMD_shader_ballot);
 			m_features.bufferDeviceAddress = false; // no such capability in GL
-			
+
+			m_features.stippledRectangularLines = !IsGLES;
+			m_features.stippledBresenhamLines = !IsGLES;
+			m_features.stippledSmoothLines = !IsGLES;
+
 			/* Vulkan 1.3 Core */
 			m_features.subgroupSizeControl = false;
 			m_features.computeFullSubgroups = false;