Render support meshes with a vertical stripe...

...so they are easier to tell apart from normal meshes, especially for single extrusion printers

plugins/SolidView/SolidView.py

@@ -28,6 +28,7 @@ class SolidView(View):
         self._enabled_shader = None
         self._disabled_shader = None
         self._non_printing_shader = None
+        self._support_mesh_shader = None
 
         self._extruders_model = ExtrudersModel()
         self._theme = None
@@ -54,6 +55,11 @@ class SolidView(View):
             self._non_printing_shader.setUniformValue("u_diffuseColor", Color(*self._theme.getColor("model_non_printing").getRgb()))
             self._non_printing_shader.setUniformValue("u_opacity", 0.6)
 
+        if not self._support_mesh_shader:
+            self._support_mesh_shader = OpenGL.getInstance().createShaderProgram(Resources.getPath(Resources.Shaders, "striped.shader"))
+            self._support_mesh_shader.setUniformValue("u_vertical_stripes", True)
+            self._support_mesh_shader.setUniformValue("u_width", 5.0)
+
         global_container_stack = Application.getInstance().getGlobalContainerStack()
         if global_container_stack:
             support_extruder_nr = global_container_stack.getProperty("support_extruder_nr", "value")
@@ -117,6 +123,16 @@ class SolidView(View):
                             renderer.queueNode(node, shader = self._non_printing_shader, transparent = True)
                     elif getattr(node, "_outside_buildarea", False):
                         renderer.queueNode(node, shader = self._disabled_shader)
+                    elif per_mesh_stack and per_mesh_stack.getProperty("support_mesh", "value"):
+                        # Render support meshes with a vertical stripe that is darker
+                        shade_factor = 0.6
+                        uniforms["diffuse_color_2"] = [
+                            uniforms["diffuse_color"][0] * shade_factor,
+                            uniforms["diffuse_color"][1] * shade_factor,
+                            uniforms["diffuse_color"][2] * shade_factor,
+                            1.0
+                        ]
+                        renderer.queueNode(node, shader = self._support_mesh_shader, uniforms = uniforms)
                     else:
                         renderer.queueNode(node, shader = self._enabled_shader, uniforms = uniforms)
                 if node.callDecoration("isGroup") and Selection.isSelected(node):

resources/shaders/striped.shader

@@ -32,6 +32,7 @@ fragment =
     uniform highp vec3 u_viewPosition;
 
     uniform mediump float u_width;
+    uniform mediump bool u_vertical_stripes;
 
     varying highp vec3 v_position;
     varying highp vec3 v_vertex;
@@ -40,7 +41,9 @@ fragment =
     void main()
     {
         mediump vec4 finalColor = vec4(0.0);
-        mediump vec4 diffuseColor = (mod((-v_position.x + v_position.y), u_width) < (u_width / 2.)) ? u_diffuseColor1 : u_diffuseColor2;
+        mediump vec4 diffuseColor = u_vertical_stripes ?
+            (((mod(v_vertex.x, u_width) < (u_width / 2.)) ^^ (mod(v_vertex.z, u_width) < (u_width / 2.))) ? u_diffuseColor1 : u_diffuseColor2) :
+            ((mod((-v_position.x + v_position.y), u_width) < (u_width / 2.)) ? u_diffuseColor1 : u_diffuseColor2);
 
         /* Ambient Component */
         finalColor += u_ambientColor;
@@ -98,6 +101,7 @@ fragment41core =
     uniform highp vec3 u_viewPosition;
 
     uniform mediump float u_width;
+    uniform mediump bool u_vertical_stripes;
 
     in highp vec3 v_position;
     in highp vec3 v_vertex;
@@ -108,7 +112,9 @@ fragment41core =
     void main()
     {
         mediump vec4 finalColor = vec4(0.0);
-        mediump vec4 diffuseColor = (mod((-v_position.x + v_position.y), u_width) < (u_width / 2.)) ? u_diffuseColor1 : u_diffuseColor2;
+        mediump vec4 diffuseColor = u_vertical_stripes ?
+            (((mod(v_vertex.x, u_width) < (u_width / 2.)) ^^ (mod(v_vertex.z, u_width) < (u_width / 2.))) ? u_diffuseColor1 : u_diffuseColor2) :
+            ((mod((-v_position.x + v_position.y), u_width) < (u_width / 2.)) ? u_diffuseColor1 : u_diffuseColor2);
 
         /* Ambient Component */
         finalColor += u_ambientColor;
@@ -138,6 +144,7 @@ u_diffuseColor2 = [0.5, 0.5, 0.5, 1.0]
 u_specularColor = [0.4, 0.4, 0.4, 1.0]
 u_shininess = 20.0
 u_width = 5.0
+u_vertical_stripes = 0
 
 [bindings]
 u_modelMatrix = model_matrix
@@ -145,7 +152,8 @@ u_viewProjectionMatrix = view_projection_matrix
 u_normalMatrix = normal_matrix
 u_viewPosition = view_position
 u_lightPosition = light_0_position
-u_diffuseColor = diffuse_color
+u_diffuseColor1 = diffuse_color
+u_diffuseColor2 = diffuse_color_2
 
 [attributes]
 a_vertex = vertex