1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
|
// Amplify Shader Editor - Visual Shader Editing Tool
// Copyright (c) Amplify Creations, Lda <info@amplify.pt>
// Billboard based on:
// https://gist.github.com/renaudbedard/7a90ec4a5a7359712202
using System;
using UnityEngine;
using System.Collections.Generic;
namespace AmplifyShaderEditor
{
public enum BillboardType
{
Cylindrical,
Spherical
}
[Serializable]
public class BillboardOpHelper
{
public static readonly string BillboardTitleStr = " Billboard";
public static readonly string BillboardTypeStr = "Type";
public static readonly string BillboardRotIndStr = "Ignore Rotation";
public static readonly string[] BillboardCylindricalInstructions = { "//Calculate new billboard vertex position and normal",
"float3 upCamVec = float3( 0, 1, 0 )"};
public static readonly string[] BillboardSphericalInstructions = { "//Calculate new billboard vertex position and normal",
"float3 upCamVec = normalize ( UNITY_MATRIX_V._m10_m11_m12 )"};
public static readonly string[] BillboardCommonInstructions = { "float3 forwardCamVec = -normalize ( UNITY_MATRIX_V._m20_m21_m22 )",
"float3 rightCamVec = normalize( UNITY_MATRIX_V._m00_m01_m02 )",
"float4x4 rotationCamMatrix = float4x4( rightCamVec, 0, upCamVec, 0, forwardCamVec, 0, 0, 0, 0, 1 )",
"{0} = normalize( mul( float4( {0} , 0 ), rotationCamMatrix )).xyz"};
public static readonly string[] BillboardRotDependent = { "//This unfortunately must be made to take non-uniform scaling into account",
"//Transform to world coords, apply rotation and transform back to local",
"{0} = mul( {1} , unity_ObjectToWorld ){2}",
"{0} = mul( {1} , rotationCamMatrix ){2}",
"{0} = mul( {1} , unity_WorldToObject ){2}"};
public static readonly string[] BillboardRotIndependent = { "{0}.x *= length( unity_ObjectToWorld._m00_m10_m20 )",
"{0}.y *= length( unity_ObjectToWorld._m01_m11_m21 )",
"{0}.z *= length( unity_ObjectToWorld._m02_m12_m22 )",
"{0} = mul( {0}, rotationCamMatrix )",
"{0}.xyz += unity_ObjectToWorld._m03_m13_m23",
"//Need to nullify rotation inserted by generated surface shader",
"{0} = mul( unity_WorldToObject, {0} )"};
public static readonly string[] BillboardHDRotDependent = { "//This unfortunately must be made to take non-uniform scaling into account",
"//Transform to world coords, apply rotation and transform back to local",
"{0} = mul( {1} , GetObjectToWorldMatrix() ){2}",
"{0} = mul( {1} , rotationCamMatrix ){2}",
"{0} = mul( {1} , GetWorldToObjectMatrix() ){2}"};
public static readonly string[] BillboardHDRotIndependent = { "{0}.x *= length( GetObjectToWorldMatrix()._m00_m10_m20 )",
"{0}.y *= length( GetObjectToWorldMatrix()._m01_m11_m21 )",
"{0}.z *= length( GetObjectToWorldMatrix()._m02_m12_m22 )",
"{0} = mul( {0}, rotationCamMatrix )",
"{0}.xyz += GetObjectToWorldMatrix()._m03_m13_m23",
"//Need to nullify rotation inserted by generated surface shader",
"{0} = mul( GetWorldToObjectMatrix(), {0} )"};
[SerializeField]
private bool m_isBillboard = false;
[SerializeField]
private BillboardType m_billboardType = BillboardType.Cylindrical;
[SerializeField]
private bool m_rotationIndependent = false;
public void Draw( ParentNode owner )
{
bool visible = owner.ContainerGraph.ParentWindow.InnerWindowVariables.ExpandedVertexOptions;
bool enabled = m_isBillboard;
NodeUtils.DrawPropertyGroup( owner, ref visible, ref m_isBillboard, BillboardTitleStr, () =>
{
m_billboardType = (BillboardType)owner.EditorGUILayoutEnumPopup( BillboardTypeStr, m_billboardType );
m_rotationIndependent = owner.EditorGUILayoutToggle( BillboardRotIndStr, m_rotationIndependent );
} );
owner.ContainerGraph.ParentWindow.InnerWindowVariables.ExpandedVertexOptions = visible;
if( m_isBillboard != enabled )
{
UIUtils.RequestSave();
}
}
public void FillDataCollectorWithInternalData( ref MasterNodeDataCollector dataCollector )
{
if( m_isBillboard )
{
FillDataCollector( ref dataCollector, m_billboardType, m_rotationIndependent, "v.vertex", "v.normal", false );
}
}
// This should be called after the Vertex Offset and Vertex Normal ports are analised
public static void FillDataCollector( ref MasterNodeDataCollector dataCollector, BillboardType billboardType, bool rotationIndependent, string vertexPosValue, string vertexNormalValue, bool vertexIsFloat3 )
{
switch( billboardType )
{
case BillboardType.Cylindrical:
{
for( int i = 0; i < BillboardCylindricalInstructions.Length; i++ )
{
dataCollector.AddVertexInstruction( BillboardCylindricalInstructions[ i ] + ( dataCollector.IsTemplate ? ";" : string.Empty ), -1, true );
}
}
break;
case BillboardType.Spherical:
{
for( int i = 0; i < BillboardCylindricalInstructions.Length; i++ )
{
dataCollector.AddVertexInstruction( BillboardSphericalInstructions[ i ] + ( dataCollector.IsTemplate ? ";" : string.Empty ), -1, true );
}
}
break;
}
for( int i = 0; i < BillboardCommonInstructions.Length; i++ )
{
string value = ( i == 3 ) ? string.Format( BillboardCommonInstructions[ i ], vertexNormalValue ) : BillboardCommonInstructions[ i ];
dataCollector.AddVertexInstruction( value + ( dataCollector.IsTemplate ? ";" : string.Empty ), -1, true );
}
if( rotationIndependent )
{
for( int i = 0; i < BillboardRotIndependent.Length; i++ )
{
string value = string.Empty;
if( dataCollector.IsTemplate && dataCollector.TemplateDataCollectorInstance.CurrentSRPType != TemplateSRPType.BuiltIn )
{
value = ( i != 5 ) ? string.Format( BillboardHDRotIndependent[ i ], vertexPosValue ) : BillboardHDRotIndependent[ i ];
}
else
{
value = ( i != 5 ) ? string.Format( BillboardRotIndependent[ i ], vertexPosValue ) : BillboardRotIndependent[ i ];
}
dataCollector.AddVertexInstruction( value + ( dataCollector.IsTemplate ? ";" : string.Empty ), -1, true );
}
}
else
{
string vertexPosConverted = vertexIsFloat3 ? string.Format( "float4({0},0)", vertexPosValue ) : vertexPosValue;
for( int i = 0; i < BillboardRotDependent.Length; i++ )
{
string value = string.Empty;
if( dataCollector.IsTemplate && dataCollector.TemplateDataCollectorInstance.CurrentSRPType == TemplateSRPType.HD )
{
value = ( i > 1 ) ? string.Format( BillboardHDRotDependent[ i ], vertexPosValue, vertexPosConverted, ( vertexIsFloat3 ? ".xyz" : string.Empty ) ) : BillboardHDRotDependent[ i ];
}
else
{
value = ( i > 1 ) ? string.Format( BillboardRotDependent[ i ], vertexPosValue, vertexPosConverted, ( vertexIsFloat3 ? ".xyz" : string.Empty ) ) : BillboardRotDependent[ i ];
}
dataCollector.AddVertexInstruction( value + ( dataCollector.IsTemplate ? ";" : string.Empty ), -1, true );
}
}
}
public string[] GetInternalMultilineInstructions()
{
// This method is only used on Surface ... no HD variation is needed
return GetMultilineInstructions( m_billboardType, m_rotationIndependent, "v.vertex", "v.normal" );
}
public static string[] GetMultilineInstructions( BillboardType billboardType, bool rotationIndependent, string vertexPosValue, string vertexNormalValue )
{
// This method is only used on Surface ... no HD variation is needed
List<string> body = new List<string>();
switch( billboardType )
{
case BillboardType.Cylindrical:
{
for( int i = 0; i < BillboardCylindricalInstructions.Length; i++ )
{
body.Add( BillboardCylindricalInstructions[ i ] );
}
}
break;
case BillboardType.Spherical:
{
for( int i = 0; i < BillboardCylindricalInstructions.Length; i++ )
{
body.Add( BillboardSphericalInstructions[ i ] );
}
}
break;
}
for( int i = 0; i < BillboardCommonInstructions.Length; i++ )
{
string value = ( i == 3 ) ? string.Format( BillboardCommonInstructions[ i ], vertexNormalValue ) : BillboardCommonInstructions[ i ];
body.Add( value );
}
if( rotationIndependent )
{
for( int i = 0; i < BillboardRotIndependent.Length; i++ )
{
string value = ( i != 5 ) ? string.Format( BillboardRotIndependent[ i ], vertexPosValue ) : BillboardRotIndependent[ i ];
body.Add( value );
}
}
else
{
for( int i = 0; i < BillboardRotDependent.Length; i++ )
{
string value = ( i > 1 ) ? string.Format( BillboardRotDependent[ i ], vertexPosValue ) : BillboardRotDependent[ i ];
body.Add( value );
}
}
return body.ToArray();
}
public void ReadFromString( ref uint index, ref string[] nodeParams )
{
m_isBillboard = Convert.ToBoolean( nodeParams[ index++ ] );
m_billboardType = (BillboardType)Enum.Parse( typeof( BillboardType ), nodeParams[ index++ ] );
if( UIUtils.CurrentShaderVersion() > 11007 )
{
m_rotationIndependent = Convert.ToBoolean( nodeParams[ index++ ] );
}
}
public void WriteToString( ref string nodeInfo )
{
IOUtils.AddFieldValueToString( ref nodeInfo, m_isBillboard );
IOUtils.AddFieldValueToString( ref nodeInfo, m_billboardType );
IOUtils.AddFieldValueToString( ref nodeInfo, m_rotationIndependent );
}
public bool IsBillboard { get { return m_isBillboard; } }
}
}
|
