bool ITerrainLayerCustomUI.OnTerrainLayerGUI(TerrainLayer terrainLayer, Terrain terrain)
{
var terrainLayers = terrain.terrainData.terrainLayers;
if (!DoesTerrainUseMaskMaps(terrainLayers))
{
return(false);
}
// Don't use the member field enableHeightBlend as ShaderGUI.OnGUI might not be called if the material UI is folded.
bool heightBlend = terrain.materialTemplate.HasProperty(kEnableHeightBlend) && terrain.materialTemplate.GetFloat(kEnableHeightBlend) > 0;
terrainLayer.diffuseTexture = EditorGUILayout.ObjectField(styles.diffuseTexture, terrainLayer.diffuseTexture, typeof(Texture2D), false) as Texture2D;
TerrainLayerUtility.ValidateDiffuseTextureUI(terrainLayer.diffuseTexture);
var diffuseRemapMin = terrainLayer.diffuseRemapMin;
var diffuseRemapMax = terrainLayer.diffuseRemapMax;
EditorGUI.BeginChangeCheck();
bool enableDensity = false;
if (terrainLayer.diffuseTexture != null)
{
var rect = GUILayoutUtility.GetLastRect();
rect.y += 16 + 4;
rect.width = EditorGUIUtility.labelWidth + 64;
rect.height = 16;
++EditorGUI.indentLevel;
var diffuseTint = new Color(diffuseRemapMax.x, diffuseRemapMax.y, diffuseRemapMax.z);
diffuseTint = EditorGUI.ColorField(rect, styles.colorTint, diffuseTint, true, false, false);
diffuseRemapMax.x = diffuseTint.r;
diffuseRemapMax.y = diffuseTint.g;
diffuseRemapMax.z = diffuseTint.b;
diffuseRemapMin.x = diffuseRemapMin.y = diffuseRemapMin.z = 0;
if (!heightBlend)
{
rect.y = rect.yMax + 2;
enableDensity = EditorGUI.Toggle(rect, styles.opacityAsDensity, diffuseRemapMin.w > 0);
}
--EditorGUI.indentLevel;
}
diffuseRemapMax.w = 1;
diffuseRemapMin.w = enableDensity ? 1 : 0;
if (EditorGUI.EndChangeCheck())
{
terrainLayer.diffuseRemapMin = diffuseRemapMin;
terrainLayer.diffuseRemapMax = diffuseRemapMax;
}
terrainLayer.normalMapTexture = EditorGUILayout.ObjectField(styles.normalMapTexture, terrainLayer.normalMapTexture, typeof(Texture2D), false) as Texture2D;
TerrainLayerUtility.ValidateNormalMapTextureUI(terrainLayer.normalMapTexture, TerrainLayerUtility.CheckNormalMapTextureType(terrainLayer.normalMapTexture));
if (terrainLayer.normalMapTexture != null)
{
var rect = GUILayoutUtility.GetLastRect();
rect.y += 16 + 4;
rect.width = EditorGUIUtility.labelWidth + 64;
rect.height = 16;
++EditorGUI.indentLevel;
terrainLayer.normalScale = EditorGUI.FloatField(rect, styles.normalScale, terrainLayer.normalScale);
--EditorGUI.indentLevel;
}
terrainLayer.maskMapTexture = EditorGUILayout.ObjectField(heightBlend ? styles.maskMapTexture : styles.maskMapTextureWithoutHeight, terrainLayer.maskMapTexture, typeof(Texture2D), false) as Texture2D;
TerrainLayerUtility.ValidateMaskMapTextureUI(terrainLayer.maskMapTexture);
var maskMapRemapMin = terrainLayer.maskMapRemapMin;
var maskMapRemapMax = terrainLayer.maskMapRemapMax;
++EditorGUI.indentLevel;
EditorGUI.BeginChangeCheck();
m_ShowChannelRemapping = EditorGUILayout.Foldout(m_ShowChannelRemapping, terrainLayer.maskMapTexture != null ? s_Styles.channelRemapping : s_Styles.defaultValues);
if (m_ShowChannelRemapping)
{
if (terrainLayer.maskMapTexture != null)
{
float min, max;
min = maskMapRemapMin.x; max = maskMapRemapMax.x;
EditorGUILayout.MinMaxSlider(s_Styles.metallic, ref min, ref max, 0, 1);
maskMapRemapMin.x = min; maskMapRemapMax.x = max;
min = maskMapRemapMin.y; max = maskMapRemapMax.y;
EditorGUILayout.MinMaxSlider(s_Styles.ao, ref min, ref max, 0, 1);
maskMapRemapMin.y = min; maskMapRemapMax.y = max;
if (heightBlend)
{
EditorGUILayout.LabelField(styles.height);
++EditorGUI.indentLevel;
m_HeightParametrization = (HeightParametrization)EditorGUILayout.EnumPopup(styles.heightParametrization, m_HeightParametrization);
if (m_HeightParametrization == HeightParametrization.Amplitude)
{
// (height - heightBase) * amplitude
float amplitude = Mathf.Max(maskMapRemapMax.z - maskMapRemapMin.z, Mathf.Epsilon); // to avoid divide by zero
float heightBase = -maskMapRemapMin.z / amplitude;
amplitude = EditorGUILayout.FloatField(styles.heightAmplitude, amplitude * 100) / 100;
heightBase = EditorGUILayout.FloatField(styles.heightBase, heightBase);
maskMapRemapMin.z = -heightBase * amplitude;
maskMapRemapMax.z = (1 - heightBase) * amplitude;
}
else
{
maskMapRemapMin.z = EditorGUILayout.FloatField(styles.heightMin, maskMapRemapMin.z * 100) / 100;
maskMapRemapMax.z = EditorGUILayout.FloatField(styles.heightMax, maskMapRemapMax.z * 100) / 100;
}
--EditorGUI.indentLevel;
}
min = maskMapRemapMin.w; max = maskMapRemapMax.w;
EditorGUILayout.MinMaxSlider(s_Styles.smoothness, ref min, ref max, 0, 1);
maskMapRemapMin.w = min; maskMapRemapMax.w = max;
}
else
{
maskMapRemapMin.x = maskMapRemapMax.x = EditorGUILayout.Slider(s_Styles.metallic, maskMapRemapMin.x, 0, 1);
maskMapRemapMin.y = maskMapRemapMax.y = EditorGUILayout.Slider(s_Styles.ao, maskMapRemapMin.y, 0, 1);
if (heightBlend)
{
maskMapRemapMin.z = maskMapRemapMax.z = EditorGUILayout.FloatField(s_Styles.heightCm, maskMapRemapMin.z * 100) / 100;
}
maskMapRemapMin.w = maskMapRemapMax.w = EditorGUILayout.Slider(s_Styles.smoothness, maskMapRemapMin.w, 0, 1);
}
}
if (EditorGUI.EndChangeCheck())
{
terrainLayer.maskMapRemapMin = maskMapRemapMin;
terrainLayer.maskMapRemapMax = maskMapRemapMax;
}
--EditorGUI.indentLevel;
EditorGUILayout.Space();
TerrainLayerUtility.TilingSettingsUI(terrainLayer);
return(true);
}
bool ITerrainLayerCustomUI.OnTerrainLayerGUI(TerrainLayer terrainLayer, Terrain terrain)
{
var terrainLayers = terrain.terrainData.terrainLayers;
// Don't use the member field enableHeightBlend as ShaderGUI.OnGUI might not be called if the material UI is folded.
// heightblend shouldn't be available if we are in multi-pass mode, because it is guaranteed to be broken.
bool heightBlendAvailable = (terrainLayers.Length <= 4);
bool heightBlend = heightBlendAvailable && terrain.materialTemplate.HasProperty(kEnableHeightBlend) && (terrain.materialTemplate.GetFloat(kEnableHeightBlend) > 0);
terrainLayer.diffuseTexture = EditorGUILayout.ObjectField(styles.diffuseTexture, terrainLayer.diffuseTexture, typeof(Texture2D), false) as Texture2D;
TerrainLayerUtility.ValidateDiffuseTextureUI(terrainLayer.diffuseTexture);
var diffuseRemapMin = terrainLayer.diffuseRemapMin;
var diffuseRemapMax = terrainLayer.diffuseRemapMax;
EditorGUI.BeginChangeCheck();
bool enableDensity = false;
if (terrainLayer.diffuseTexture != null)
{
var rect = GUILayoutUtility.GetLastRect();
rect.y += 16 + 4;
rect.width = EditorGUIUtility.labelWidth + 64;
rect.height = 16;
++EditorGUI.indentLevel;
var diffuseTint = new Color(diffuseRemapMax.x, diffuseRemapMax.y, diffuseRemapMax.z);
diffuseTint = EditorGUI.ColorField(rect, styles.colorTint, diffuseTint, true, false, false);
diffuseRemapMax.x = diffuseTint.r;
diffuseRemapMax.y = diffuseTint.g;
diffuseRemapMax.z = diffuseTint.b;
diffuseRemapMin.x = diffuseRemapMin.y = diffuseRemapMin.z = 0;
if (!heightBlend)
{
rect.y = rect.yMax + 2;
enableDensity = EditorGUI.Toggle(rect, styles.opacityAsDensity, diffuseRemapMin.w > 0);
}
--EditorGUI.indentLevel;
}
diffuseRemapMax.w = 1;
diffuseRemapMin.w = enableDensity ? 1 : 0;
if (EditorGUI.EndChangeCheck())
{
terrainLayer.diffuseRemapMin = diffuseRemapMin;
terrainLayer.diffuseRemapMax = diffuseRemapMax;
}
// Display normal map UI
terrainLayer.normalMapTexture = EditorGUILayout.ObjectField(styles.normalMapTexture, terrainLayer.normalMapTexture, typeof(Texture2D), false) as Texture2D;
TerrainLayerUtility.ValidateNormalMapTextureUI(terrainLayer.normalMapTexture, TerrainLayerUtility.CheckNormalMapTextureType(terrainLayer.normalMapTexture));
if (terrainLayer.normalMapTexture != null)
{
var rect = GUILayoutUtility.GetLastRect();
rect.y += 16 + 4;
rect.width = EditorGUIUtility.labelWidth + 64;
rect.height = 16;
++EditorGUI.indentLevel;
terrainLayer.normalScale = EditorGUI.FloatField(rect, styles.normalScale, terrainLayer.normalScale);
--EditorGUI.indentLevel;
}
// Display the mask map UI and the remap controls
terrainLayer.maskMapTexture = EditorGUILayout.ObjectField(heightBlend ? styles.maskMapTexture : styles.maskMapTextureWithoutHeight, terrainLayer.maskMapTexture, typeof(Texture2D), false) as Texture2D;
TerrainLayerUtility.ValidateMaskMapTextureUI(terrainLayer.maskMapTexture);
var maskMapRemapMin = terrainLayer.maskMapRemapMin;
var maskMapRemapMax = terrainLayer.maskMapRemapMax;
var smoothness = terrainLayer.smoothness;
var metallic = terrainLayer.metallic;
++EditorGUI.indentLevel;
EditorGUI.BeginChangeCheck();
m_ShowChannelRemapping = EditorGUILayout.Foldout(m_ShowChannelRemapping, terrainLayer.maskMapTexture != null ? s_Styles.channelRemapping : s_Styles.defaultValues);
if (m_ShowChannelRemapping)
{
if (terrainLayer.maskMapTexture != null)
{
float min, max;
min = maskMapRemapMin.x; max = maskMapRemapMax.x;
EditorGUILayout.MinMaxSlider(s_Styles.metallic, ref min, ref max, 0, 1);
maskMapRemapMin.x = min; maskMapRemapMax.x = max;
min = maskMapRemapMin.y; max = maskMapRemapMax.y;
EditorGUILayout.MinMaxSlider(s_Styles.ao, ref min, ref max, 0, 1);
maskMapRemapMin.y = min; maskMapRemapMax.y = max;
if (heightBlend)
{
EditorGUILayout.LabelField(styles.height);
++EditorGUI.indentLevel;
m_HeightParametrization = (HeightParametrization)EditorGUILayout.EnumPopup(styles.heightParametrization, m_HeightParametrization);
if (m_HeightParametrization == HeightParametrization.Amplitude)
{
// (height - heightBase) * amplitude
float amplitude = Mathf.Max(maskMapRemapMax.z - maskMapRemapMin.z, Mathf.Epsilon); // to avoid divide by zero
float heightBase = maskMapRemapMin.z / amplitude;
amplitude = EditorGUILayout.FloatField(styles.heightAmplitude, amplitude * 100) / 100;
heightBase = EditorGUILayout.FloatField(styles.heightBase, heightBase * 100) / 100;
maskMapRemapMin.z = heightBase * amplitude;
maskMapRemapMax.z = (1.0f - heightBase) * amplitude;
}
else
{
maskMapRemapMin.z = EditorGUILayout.FloatField(styles.heightMin, maskMapRemapMin.z * 100) / 100;
maskMapRemapMax.z = EditorGUILayout.FloatField(styles.heightMax, maskMapRemapMax.z * 100) / 100;
}
--EditorGUI.indentLevel;
}
min = maskMapRemapMin.w; max = maskMapRemapMax.w;
EditorGUILayout.MinMaxSlider(s_Styles.smoothness, ref min, ref max, 0, 1);
maskMapRemapMin.w = min; maskMapRemapMax.w = max;
}
else
{
metallic = EditorGUILayout.Slider(s_Styles.metallic, metallic, 0, 1);
// AO and Height are still exclusively controlled via the maskRemap controls
// metallic and smoothness have their own values as fields within the LayerData.
maskMapRemapMax.y = EditorGUILayout.Slider(s_Styles.ao, maskMapRemapMax.y, 0, 1);
if (heightBlend)
{
maskMapRemapMax.z = EditorGUILayout.FloatField(s_Styles.heightCm, maskMapRemapMax.z * 100) / 100;
}
// There's a possibility that someone could slide max below the existing min value
// so we'll just protect against that by locking the min value down a little bit.
// In the case of height (Z), we are trying to set min to no lower than zero value unless
// max goes negative. Zero is a good sensible value for the minimum. For AO (Y), we
// don't need this extra protection step because the UI blocks us from going negative
// anyway. In both cases, pushing the slider below the min value will lock them together,
// but min will be "left behind" if you go back up.
maskMapRemapMin.y = Mathf.Min(maskMapRemapMin.y, maskMapRemapMax.y);
maskMapRemapMin.z = Mathf.Min(Mathf.Max(0, maskMapRemapMin.z), maskMapRemapMax.z);
if (TextureHasAlpha(terrainLayer.diffuseTexture))
{
GUIStyle warnStyle = new GUIStyle(GUI.skin.label);
warnStyle.wordWrap = true;
GUILayout.Label("Smoothness is controlled by diffuse alpha channel", warnStyle);
}
else
{
smoothness = EditorGUILayout.Slider(s_Styles.smoothness, smoothness, 0, 1);
}
}
}
if (EditorGUI.EndChangeCheck())
{
terrainLayer.maskMapRemapMin = maskMapRemapMin;
terrainLayer.maskMapRemapMax = maskMapRemapMax;
terrainLayer.smoothness = smoothness;
terrainLayer.metallic = metallic;
}
--EditorGUI.indentLevel;
EditorGUILayout.Space();
TerrainLayerUtility.TilingSettingsUI(terrainLayer);
return(true);
}
