Create first version of blender add on and fix hidden edges with new gpu code

blender/plugin.py

@@ -1,136 +0,0 @@
-import bpy
-import bmesh
-import socket
-import json
-
-HOST = "localhost"
-PORT = 51677
-
-# Persistent global storage for knowing which meshes
-# have already been sent to osci-render
-bpy.context.scene.collection["osci_render"] = {}
-col = bpy.context.scene.collection["osci_render"]
-col["seen_objs"] = {}
-
-camera = bpy.context.scene.camera
-
-sock = None
-
-
-class OBJECT_PT_osci_render_settings(bpy.types.Panel):
-    bl_idname = "OBJECT_PT_osci_render_settings"
-    bl_label = "osci-render settings"
-    bl_space_type = "PROPERTIES"
-    bl_region_type = "WINDOW"
-    bl_context = "render"
-
-    def draw_header(self, context):
-        layout = self.layout
-
-    def draw(self, context):
-        global sock
-        if sock is None:
-            self.layout.operator("render.osci_render_connect", text="Connect to osci-render")
-        else:
-            self.layout.operator("render.osci_render_close", text="Close osci-render connection")
-
-
-class osci_render_connect(bpy.types.Operator):
-    bl_label = "Connect to osci-render"
-    bl_idname = "render.osci_render_connect"
-    bl_description = "Connect to osci-render"
-
-    def execute(self, context):
-        global sock
-        if sock is None:
-            try:
-                col["seen_objs"] = {}
-                sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
-                sock.connect((HOST, PORT))
-                send_scene_to_osci_render(bpy.context.scene)
-            except OSError as exp:
-                sock.close()
-                sock = None
-
-        return {"FINISHED"}
-
-
-class osci_render_close(bpy.types.Operator):
-    bl_label = "Close osci-render connection"
-    bl_idname="render.osci_render_close"
-
-    def execute(self, context):
-        global sock
-        if sock is not None:
-            sock.send("CLOSE\n".encode('utf-8'))
-            sock.close()
-            sock = None
-
-        return {"FINISHED"}
-
-
-def send_scene_to_osci_render(scene):
-    global sock
-    if sock is not None:
-        engine_info = {"objects": []}
-        new_objs = []
-
-        for obj in bpy.data.objects:
-            if obj.type == 'MESH':
-                object_info = {"name": obj.name}
-                if obj.name not in col["seen_objs"]:
-                    col["seen_objs"][obj.name] = 1
-                    new_objs.append(obj.name)
-
-                    mesh = bmesh.new()
-                    mesh.from_mesh(obj.data)
-
-                    object_info["vertices"] = []
-                    # If there are bugs, the vertices here might not match up with the vert.index in edges/faces
-                    for vert in mesh.verts:
-                        object_info["vertices"].append({
-                            "x": vert.co[0],
-                            "y": vert.co[1],
-                            "z": vert.co[2],
-                        })
-
-                    object_info["edges"] = [vert.index for edge in mesh.edges for vert in edge.verts]
-                    object_info["faces"] = [[vert.index for vert in face.verts] for face in mesh.faces]
-
-                camera_space = camera.matrix_world.inverted() @ obj.matrix_world
-                object_info["matrix"] = [camera_space[i][j] for i in range(4) for j in range(4)]
-
-                engine_info["objects"].append(object_info)
-
-
-        engine_info["focalLength"] = -0.1 * bpy.data.cameras[0].lens
-
-        try:
-            json_str = json.dumps(engine_info, separators=(',', ':')) + '\n'
-            sock.sendall(json_str.encode('utf-8'))
-        except OSError as exc:
-            # Remove all newly added objects if no connection was made
-            # so that the object data will be sent on next attempt
-            for obj_name in new_objs:
-                col["seen_objs"].pop(obj_name)
-
-
-operations = [OBJECT_PT_osci_render_settings, osci_render_connect, osci_render_close]
-
-
-def register():
-    bpy.app.handlers.frame_change_pre.append(send_scene_to_osci_render)
-    bpy.app.handlers.depsgraph_update_post.append(send_scene_to_osci_render)
-    for operation in operations:
-        bpy.utils.register_class(operation)
-
-
-def unregister():
-    bpy.app.handlers.frame_change_pre.clear()
-    bpy.app.handlers.depsgraph_update_post.clear()
-    for operation in operations.reverse():
-        bpy.utils.unregister_class(operation)
-
-
-if __name__ == "__main__":
-    register()

src/main/java/sh/ball/engine/CameraDrawKernel.java

@@ -13,6 +13,8 @@ import java.util.List;
 
 public class CameraDrawKernel extends Kernel {
 
+  private static final int MIN_GPU_VERTICES = 50;
+
   private WorldObject prevObject = null;
   private float[] vertices;
   private float[] vertexResult;
@@ -131,6 +133,8 @@ public class CameraDrawKernel extends Kernel {
   }
 
   private List<Shape> executeKernel(boolean cpu) {
+    cpu |= vertices.length / 3 < MIN_GPU_VERTICES;
+
     if (cpu) {
       for (int i = 0; i < vertices.length / 3; i++) {
         processVertex(i);