drewcassidy/KSP-Conformal-Decals
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Fix transform handling and projection culling

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Now to figure out why my collider is disappearing...
This commit is contained in:
Andrew Cassidy 2020-05-31 23:04:59 -07:00
parent a12b11a339
commit 91a6613707
4 changed files with 136 additions and 92 deletions
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3
Distribution/GameData/ConformalDecals/Parts/decal-blank.cfg
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@ -45,7 +45,8 @@ PART
{
name = ModuleConformalDecal
decalPreviewTransform = Decal-Front
decalFront = Decal-Front
decalBack = Decal-Back
MATERIAL
{

BIN
Distribution/GameData/ConformalDecals/Plugins/ConformalDecals.dll
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207
Source/ConformalDecals/ModuleConformalDecal.cs
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@ -1,15 +1,10 @@
using System;
using System.Collections.Generic;
using ConformalDecals.MaterialModifiers;
using UniLinq;
using UnityEngine;
namespace ConformalDecals {
public class ModuleConformalDecal : PartModule {
[KSPField] public string decalPreviewTransform = "";
[KSPField] public string decalModelTransform = "";
[KSPField] public string decalProjectorTransform = "";
[KSPField(guiName = "#LOC_ConformalDecals_gui-scale", guiActive = false, guiActiveEditor = true, isPersistant = true, guiFormat = "F2", guiUnits = "m"),
UI_FloatRange(minValue = 0.05f, maxValue = 4f, stepIncrement = 0.05f)]
public float scale = 1.0f;
@ -20,7 +15,7 @@ namespace ConformalDecals {
[KSPField(guiName = "#LOC_ConformalDecals_gui-opacity", guiActive = false, guiActiveEditor = true, isPersistant = true, guiFormat = "F2", guiUnits = "m"),
UI_FloatRange(minValue = 0.05f, maxValue = 4f, stepIncrement = 0.05f)]
public float opacity= 1.0f;
public float opacity = 1.0f;
[KSPField(guiName = "#LOC_ConformalDecals_gui-cutoff", guiActive = false, guiActiveEditor = true, isPersistant = true, guiFormat = "F2", guiUnits = "m"),
UI_FloatRange(minValue = 0.05f, maxValue = 4f, stepIncrement = 0.05f)]
@ -29,21 +24,33 @@ namespace ConformalDecals {
[KSPField(guiName = "#LOC_ConformalDecals_gui-aspectratio", guiActive = true, guiFormat = "F2")]
public float aspectRatio = 1.0f;
[KSPField] public MaterialPropertyCollection materialProperties;
[KSPField] public string decalFront = string.Empty;
[KSPField] public string decalBack = string.Empty;
[KSPField] public string decalModel = string.Empty;
[KSPField] public string decalProjector = string.Empty;
[KSPField] public Transform decalPreviewTransformRef;
[KSPField] public Transform decalModelTransformRef;
[KSPField] public Transform decalProjectorTransformRef;
[KSPField] public Transform modelTransformRef;
[KSPField] public Transform colliderTransformRef;
[KSPField] public BoxCollider colliderRef;
[KSPField] public Transform decalFrontTransform;
[KSPField] public Transform decalBackTransform;
[KSPField] public Transform decalModelTransform;
[KSPField] public Transform decalProjectorTransform;
[KSPField] public bool adjustableScale = true;
[KSPField] public bool adjustableDepth = true;
[KSPField] public bool adjustableOpacity = true;
[KSPField] public bool adjustableCutoff = true;
[KSPField] public bool updateBackScale = true;
[KSPField] public MaterialPropertyCollection materialProperties;
private List<ProjectionTarget> _targets;
private bool _isAttached;
private Matrix4x4 _orthoMatrix;
private Bounds _decalBounds;
private bool IsAttached => part.parent != null;
private Vector2 _backTextureBaseScale;
private Material _backMaterial;
public override void OnLoad(ConfigNode node) {
this.Log("Loading module");
@ -62,35 +69,42 @@ namespace ConformalDecals {
aspectRatio = 1;
}
// find preview object references
modelTransformRef = part.transform.Find("model");
// find front transform
decalFrontTransform = part.FindModelTransform(decalFront);
if (decalFrontTransform == null) throw new FormatException($"Could not find decalFront transform: '{decalFront}'.");
decalPreviewTransformRef = part.FindModelTransform(decalPreviewTransform);
if (decalPreviewTransformRef == null) throw new FormatException("Missing decal preview reference");
if (String.IsNullOrEmpty(decalModelTransform)) {
decalModelTransformRef = decalPreviewTransformRef;
// find back transform
this.Log($"decalBack name is {decalBack}");
this.Log($"updateBaseScale is {updateBackScale}");
if (string.IsNullOrEmpty(decalBack)) {
if (updateBackScale) {
this.LogWarning("updateBackScale is true but has no specified decalBack transform!");
this.LogWarning("Setting updateBackScale to false.");
updateBackScale = false;
}
}
else {
decalModelTransformRef = part.FindModelTransform(decalModelTransform);
if (decalModelTransformRef == null) throw new FormatException("Missing decal mesh reference");
decalBackTransform = part.FindModelTransform(decalBack);
if (decalBackTransform == null) throw new FormatException($"Could not find decalBack transform: '{decalBack}'.");
}
if (String.IsNullOrEmpty(decalProjectorTransform)) {
decalProjectorTransformRef = modelTransformRef;
// find model transform
if (string.IsNullOrEmpty(decalModel)) {
decalModelTransform = decalFrontTransform;
}
else {
decalProjectorTransformRef = part.FindModelTransform(decalProjectorTransform);
if (decalProjectorTransform == null) throw new FormatException("Missing decal projector reference");
decalModelTransform = part.FindModelTransform(decalModel);
if (decalModelTransform == null) throw new FormatException($"Could not find decalModel transform: '{decalModel}'.");
}
colliderTransformRef = new GameObject("Decal Collider").transform;
colliderTransformRef.parent = modelTransformRef;
colliderTransformRef.position = decalProjectorTransformRef.position;
colliderTransformRef.rotation = decalProjectorTransformRef.rotation;
colliderTransformRef.gameObject.SetActive(false);
colliderRef = colliderTransformRef.gameObject.AddComponent<BoxCollider>();
// find projector transform
if (string.IsNullOrEmpty(decalProjector)) {
decalProjectorTransform = part.transform.Find("model");
}
else {
decalProjectorTransform = part.FindModelTransform(decalProjector);
if (decalProjectorTransform == null) throw new FormatException($"Could not find decalProjector transform: '{decalProjector}'.");
}
}
catch (Exception e) {
this.LogException("Exception parsing partmodule", e);
@ -99,25 +113,47 @@ namespace ConformalDecals {
public override void OnStart(StartState state) {
this.Log("Starting module");
// generate orthogonal projection matrix and offset it by 0.5 on x and y axes
_orthoMatrix = Matrix4x4.identity;
_orthoMatrix[0, 3] = 0.5f;
_orthoMatrix[1, 3] = 0.5f;
// setup OnTweakEvent for scale and depth fields in editor
if ((state & StartState.Editor) != 0) {
// setup OnTweakEvent for scale and depth fields in editor
GameEvents.onEditorPartEvent.Add(OnEditorEvent);
GameEvents.onVariantApplied.Add(OnVariantApplied);
Fields[nameof(scale)].uiControlEditor.onFieldChanged = OnTweakEvent;
Fields[nameof(depth)].uiControlEditor.onFieldChanged = OnTweakEvent;
Fields[nameof(scale)].uiControlEditor.onFieldChanged = OnScaleTweakEvent;
Fields[nameof(depth)].uiControlEditor.onFieldChanged = OnScaleTweakEvent;
}
// get back material if necessary
if (updateBackScale) {
this.Log("Getting material and base scale for back material");
var backRenderer = decalBackTransform.GetComponent<MeshRenderer>();
if (backRenderer == null) {
this.LogError($"Specified decalBack transform {decalBack} has no renderer attached! Setting updateBackScale to false.");
updateBackScale = false;
}
else if ((_backMaterial = backRenderer.material) == null) {
this.LogError($"Specified decalBack transform {decalBack} has a renderer but no material! Setting updateBackScale to false.");
updateBackScale = false;
}
else {
_backTextureBaseScale = _backMaterial.GetTextureScale(PropertyIDs._MainTex);
}
}
// set initial attachment state
if (part.parent == null) {
OnDetach();
}
else {
// if we start in the flight scene attached, call Attach
if (IsAttached) Attach();
OnAttach();
}
}
private void OnDestroy() {
public void OnDestroy() {
GameEvents.onEditorPartEvent.Remove(OnEditorEvent);
GameEvents.onVariantApplied.Remove(OnVariantApplied);
@ -125,45 +161,47 @@ namespace ConformalDecals {
Camera.onPreCull -= Render;
}
public void OnTweakEvent(BaseField field, object obj) {
// scale or depth values have been changed, so update the projection matrix for each target
Project();
private void OnScaleTweakEvent(BaseField field, object obj) {
// scale or depth values have been changed, so update scale
// and update projection matrices if attached
UpdateScale();
if (_isAttached) UpdateProjection();
}
public void OnVariantApplied(Part eventPart, PartVariant variant) {
if (IsAttached && eventPart == part.parent) {
Detach();
Attach();
private void OnVariantApplied(Part eventPart, PartVariant variant) {
if (_isAttached && eventPart == part.parent) {
OnDetach();
OnAttach();
}
}
public void OnEditorEvent(ConstructionEventType eventType, Part eventPart) {
private void OnEditorEvent(ConstructionEventType eventType, Part eventPart) {
if (eventPart != this.part) return;
switch (eventType) {
case ConstructionEventType.PartAttached:
Attach();
OnAttach();
break;
case ConstructionEventType.PartDetached:
Detach();
OnDetach();
break;
case ConstructionEventType.PartOffsetting:
case ConstructionEventType.PartRotating:
case ConstructionEventType.PartDragging:
Project();
UpdateProjection();
break;
}
}
public void Attach() {
if (!IsAttached) {
private void OnAttach() {
if (part.parent == null) {
this.LogError("Attach function called but part has no parent!");
_isAttached = false;
return;
}
_isAttached = true;
this.Log($"Decal attached to {part.parent.partName}");
this.Log($"{materialProperties == null}");
this.Log($"{decalModelTransformRef == null}");
if (_targets == null) {
_targets = new List<ProjectionTarget>();
@ -194,58 +232,61 @@ namespace ConformalDecals {
}
// hide preview model
decalModelTransformRef.gameObject.SetActive(false);
// enable decal collider
colliderTransformRef.gameObject.SetActive(true);
decalModelTransform.gameObject.SetActive(false);
// add to preCull delegate
Camera.onPreCull += Render;
Project();
UpdateScale();
UpdateProjection();
}
public void Detach() {
// unhide preview model
decalModelTransformRef.gameObject.SetActive(true);
private void OnDetach() {
_isAttached = false;
// enable decal collider
colliderTransformRef.gameObject.SetActive(false);
// unhide preview model
decalModelTransform.gameObject.SetActive(true);
// remove from preCull delegate
Camera.onPreCull -= Render;
UpdateScale();
}
[KSPEvent(guiActive = false, guiName = "Project", guiActiveEditor = true, active = true)]
public void Project() {
if (!IsAttached) return;
private void UpdateScale() {
var size = new Vector2(scale, scale * aspectRatio);
float width = scale;
float height = scale * aspectRatio;
// generate orthogonal matrix scale values
_orthoMatrix[0, 0] = 1 / width;
_orthoMatrix[1, 1] = 1 / height;
// update orthogonal matrix scale
_orthoMatrix[0, 0] = 1 / size.x;
_orthoMatrix[1, 1] = 1 / size.y;
_orthoMatrix[2, 2] = 1 / depth;
// generate bounding box for decal for culling purposes
_decalBounds.center = Vector3.forward * (depth / 2);
_decalBounds.extents = new Vector3(width / 2, height / 2, depth / 2);
_decalBounds.extents = new Vector3(size.x / 2, size.y / 2, depth / 2);
// rescale preview model
decalModelTransformRef.localScale = new Vector3(width, height, (width + height) / 2);
decalModelTransform.localScale = new Vector3(size.x, size.y, (size.x + size.y) / 2);
// assign dimensions to collider
colliderRef.center = _decalBounds.center;
colliderRef.size = _decalBounds.size;
// update back material scale
if (updateBackScale) {
_backMaterial.SetTextureScale(PropertyIDs._MainTex, new Vector2(size.x * _backTextureBaseScale.x, size.y * _backTextureBaseScale.y));
}
// update material scale
materialProperties.UpdateMaterial(size);
}
private void UpdateProjection() {
if (!_isAttached) return;
// project to each target object
foreach (var target in _targets) {
target.Project(_orthoMatrix, colliderRef.bounds, decalProjectorTransformRef);
target.Project(_orthoMatrix, new OrientedBounds(decalProjectorTransform.localToWorldMatrix, _decalBounds), decalProjectorTransform);
}
}
public void Render(Camera camera) {
if (!IsAttached) return;
private void Render(Camera camera) {
if (!_isAttached) return;
// render on each target object
foreach (var target in _targets) {

6
Source/ConformalDecals/ProjectionTarget.cs
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@ -45,9 +45,9 @@ namespace ConformalDecals {
}
}
public void Project(Matrix4x4 orthoMatrix, Bounds projectorBounds, Transform projector) {
public void Project(Matrix4x4 orthoMatrix, OrientedBounds projectorBounds, Transform projector) {
var targetBounds = _targetRenderer.bounds;
if (targetBounds.Intersects(projectorBounds)) {
if (projectorBounds.Intersects(targetBounds)) {
_projectionEnabled = true;
var projectorToTargetMatrix = target.worldToLocalMatrix * projector.localToWorldMatrix;
@ -58,9 +58,11 @@ namespace ConformalDecals {
decalMPB.SetMatrix(_projectionMatrixID, projectionMatrix);
decalMPB.SetVector(_decalNormalID, decalNormal);
decalMPB.SetVector(_decalTangentID, decalTangent);
Debug.Log($"Projection enabled for {target.gameObject}");
}
else {
_projectionEnabled = false;
Debug.Log($"Projection disabled for {target.gameObject}");
}
}