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Work on understanding how character models are loaded.

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This commit is contained in:
Simon Brooke 2024-05-19 20:49:22 +01:00
parent 73cf796b19
commit a528db9e8e
2 changed files with 46 additions and 41 deletions
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2
doc/Understanding-jme3-character-models.md
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@ -99,6 +99,8 @@ To be fair I don't know what proportion of subclasses of `Control` have skeleton
As there are now a lot of branches to cover, I'm going to concentrate on the `SkinningControl` one, which *seems* to be the current state of the art. I haven't at this stage investigated how `AssetManager.loadModel(String)` determines which classes to instantiate when loading a model, but I'm going to assume that I can coerce my models to be loaded in a non-deprecated form.
(Confirmed: I am getting instances of SkinningControls when I load models).
A [`SkinningControl`](https://javadoc.jmonkeyengine.org/v3.6.1-stable/com/jme3/anim/SkinningControl.html) has a private instance variable `armature`:
```java

85
src/cc/journeyman/simulated_genetics/launcher.clj
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@ -1,10 +1,10 @@
(ns cc.journeyman.simulated-genetics.launcher
(:require [clojure.tools.cli :refer [parse-opts]]
[jme-clj.core :refer [add-control add-to-root app-settings cam
defsimpleapp fly-cam get-height-map image
image-based-height-map load-height-map
load-model load-texture material set* start
terrain-lod-control terrain-quad]]
[jme-clj.core :refer [add-control add-light-to-root add-to-root app-settings attach-child bitmap-text box cam
defsimpleapp detach-all-child fly-cam geo get* get-height-map gui-node image
image-based-height-map light load-font load-height-map
load-model load-texture material root-node rotate scale set* start
terrain-lod-control terrain-quad vec3]]
[taoensso.telemere :refer [set-min-level! trace!]])
(:import (com.jme3.texture Texture$WrapMode))
(:gen-class))
@ -34,6 +34,8 @@
(declare app)
(def models (atom {}))
(def cli-options
"I haven't yet thought out what command line arguments (if any) I need.
This is a placeholder."
@ -44,44 +46,45 @@
["-h" "--help"]])
(defn init
"Again, placeholder. This initialises a bit of standard jMonkeyEngine
terrain, just to check I have things wired up correctly."
;; cribbed from jme-clj examples/hello-asset.clj
[]
(set* (fly-cam) :move-speed 50)
(let [grass (set* (load-texture "jme3/textures/terrain/splat/grass.jpg")
:wrap Texture$WrapMode/Repeat)
dirt (set* (load-texture "jme3/textures/terrain/splat/dirt.jpg")
:wrap Texture$WrapMode/Repeat)
rock (set* (load-texture "jme3/textures/terrain/splat/road.jpg")
:wrap Texture$WrapMode/Repeat)
mat (material "Common/MatDefs/Terrain/Terrain.j3md")
height-map-tex (load-texture
"jme3/textures/terrain/splat/mountains512.png")
height-map (->> height-map-tex image image-based-height-map
load-height-map)
patch-size 65
terrain (terrain-quad "my terrain" patch-size 513
(get-height-map height-map))
(let [root-node (root-node)
mat-default (material "Common/MatDefs/Misc/ShowNormals.j3md")
model (trace! (load-model "model-prototypes/male.glb"))]
(trace! (-> model (set* :material mat-default)
(set* :local-translation 0.0 -5.0 -2.0)
(add-to-root)))
(-> mat
(set* :texture "Alpha"
(load-texture "jme3/textures/terrain/splat/alphamap.png"))
(set* :texture "Tex1" grass)
(set* :float "Tex1Scale" (float 64))
(set* :texture "Tex2" dirt)
(set* :float "Tex2Scale" (float 32))
(set* :texture "Tex3" rock)
(set* :float "Tex3Scale" (float 128)))
(-> terrain
(set* :material mat)
(set* :local-translation 0 -100 0)
(set* :local-scale 2 1 2)
(add-to-root)
(add-control (terrain-lod-control terrain (cam))))))
;; teapot (load-model "Models/Teapot/Teapot.obj")
;; teapot (set* teapot :material mat-default)
;; root-node (attach-child root-node teapot)
;; Create a wall with a simple texture from test_data
;; box (box 2.5 2.5 1.0)
;; mat-brick (material "Common/MatDefs/Misc/Unshaded.j3md")
;; texture (load-texture "Textures/Terrain/BrickWall/BrickWall.jpg")
;; mat-brick (set* mat-brick :texture "ColorMap" texture)
;; wall (geo "Box" box)
;; wall (-> wall (set* :material mat-brick) (set* :local-translation 2.0 -2.5 0.0))
;; root-node (attach-child root-node wall)
;; Display a line of text with a default font
gui-node (detach-all-child (gui-node))
gui-font (load-font "Interface/Fonts/Default.fnt")
size (-> gui-font (get* :char-set) (get* :rendered-size))
hello-text (bitmap-text gui-font false)
hello-text (-> hello-text
(set* :size size)
(set* :text "Hello World")
(set* :local-translation 300 (get* hello-text :line-height) 0))]
(attach-child gui-node hello-text)
; Load a model from test_data (OgreXML + material + texture)
(let [model (load-model "model-prototypes/female.glb")]
(swap! models assoc :model model)
(println (format "Model is of type `%s`" (type model)))
(-> model
(scale 0.05 0.05 0.05)
(rotate 0.0 -3.0 0.0)
(set* :local-translation 0.0 -5.0 -2.0))
(attach-child root-node model))
;; You must add a light to make the model visible
(-> (light :directional)
(set* :direction (vec3 -0.1 -0.7 -1.0))
(add-light-to-root))))
(defsimpleapp app :init init)