void RestoreTerrain(Rect selection)
{
if (baked)
{
baked = false;
return;
}
PaintContext prevPaintContext = TerrainPaintUtility.BeginPaintHeightmap(terrain, selection);
Graphics.CopyTexture(prevRenderTexture, prevPaintContext.destinationRenderTexture);
TerrainPaintUtility.EndPaintHeightmap(prevPaintContext, "Terrain");
terrain.terrainData.SyncHeightmap();
}
public override bool OnPaint(Terrain terrain, IOnPaint editContext)
{
// ignore mouse drags
if (Event.current.type == EventType.MouseDrag)
{
return(true);
}
BrushTransform brushXform = TerrainPaintUtility.CalculateBrushTransform(terrain, editContext.uv, editContext.brushSize, 0.0f);
PaintContext paintContext = TerrainPaintUtility.BeginPaintHeightmap(terrain, brushXform.GetBrushXYBounds());
ApplyBrushInternal(paintContext, editContext.brushStrength, editContext.brushTexture, brushXform, terrain, Event.current.shift);
TerrainPaintUtility.EndPaintHeightmap(paintContext, "Terrain Paint - Stamp");
return(true);
}
public void OnSceneGUI(Terrain currentTerrain, IOnSceneGUI editContext)
{
if (m_StartTerrain != null && m_StartPoint != null)
{
// anchor is placed on the start terrain, independent of the active one; needed for multi-tiles
Terrain terrain = m_StartTerrain;
BrushTransform anchorBrushXform = TerrainPaintUtility.CalculateBrushTransform(terrain, m_StartPoint, editContext.brushSize, 0.0f);
PaintContext anchorCtx = TerrainPaintUtility.BeginPaintHeightmap(terrain, anchorBrushXform.GetBrushXYBounds(), 1);
Material brushPreviewMat = BrushUtilities.GetDefaultBrushPreviewMaterial();
brushPreviewMat.color = anchorBrushColor;
BrushUtilities.DrawBrushPreview(anchorCtx, BrushUtilities.BrushPreview.SourceRenderTexture, editContext.brushTexture, anchorBrushXform, brushPreviewMat, 0);
TerrainPaintUtility.ReleaseContextResources(anchorCtx);
}
}
private void DrawBrushPreviews(Terrain terrain, IOnSceneGUI editContext)
{
Vector2 sampleUV;
BrushTransform sampleXform;
PaintContext sampleContext = null;
Material previewMat = Utility.GetDefaultPreviewMaterial();
// draw sample location brush and create context data to be used when drawing target brush previews
if (m_SampleLocation.terrain != null)
{
sampleUV = TerrainUVFromBrushLocation(m_SampleLocation.terrain, m_SampleLocation.pos);
sampleXform = TerrainPaintUtility.CalculateBrushTransform(m_SampleLocation.terrain, sampleUV, commonUI.brushSize, commonUI.brushRotation);
sampleContext = TerrainPaintUtility.BeginPaintHeightmap(m_SampleLocation.terrain, sampleXform.GetBrushXYBounds());
var texelCtx = Utility.CollectTexelValidity(sampleContext.originTerrain, sampleXform.GetBrushXYBounds());
Utility.SetupMaterialForPaintingWithTexelValidityContext(sampleContext, texelCtx, sampleXform, previewMat);
TerrainPaintUtilityEditor.DrawBrushPreview(sampleContext, TerrainBrushPreviewMode.SourceRenderTexture,
editContext.brushTexture, sampleXform, previewMat, 0);
texelCtx.Cleanup();
}
// draw brush preview and mesh preview for current mouse position
if (commonUI.isRaycastHitUnderCursorValid)
{
BrushTransform brushXform = TerrainPaintUtility.CalculateBrushTransform(terrain, commonUI.raycastHitUnderCursor.textureCoord, commonUI.brushSize, commonUI.brushRotation);
PaintContext ctx = TerrainPaintUtility.BeginPaintHeightmap(terrain, brushXform.GetBrushXYBounds(), 1);
var texelCtx = Utility.CollectTexelValidity(ctx.originTerrain, brushXform.GetBrushXYBounds());
Utility.SetupMaterialForPaintingWithTexelValidityContext(ctx, texelCtx, brushXform, previewMat);
TerrainPaintUtilityEditor.DrawBrushPreview(ctx, TerrainBrushPreviewMode.SourceRenderTexture,
editContext.brushTexture, brushXform, previewMat, 0);
if (sampleContext != null && cloneToolProperties.m_PaintHeightmap)
{
ApplyHeightmap(sampleContext, ctx, brushXform, terrain, editContext.brushTexture, commonUI.brushStrength);
RenderTexture.active = ctx.oldRenderTexture;
previewMat.SetTexture("_HeightmapOrig", ctx.sourceRenderTexture);
TerrainPaintUtilityEditor.DrawBrushPreview(ctx, TerrainBrushPreviewMode.DestinationRenderTexture,
editContext.brushTexture, brushXform, previewMat, 1);
}
// Restores RenderTexture.active
ctx.Cleanup();
texelCtx.Cleanup();
}
// Restores RenderTexture.active
sampleContext?.Cleanup();
}
public override bool OnPaint(Terrain terrain, IOnPaint editContext)
{
if (Event.current.shift)
{
m_HeightWorldSpace = terrain.terrainData.GetInterpolatedHeight(editContext.uv.x, editContext.uv.y) + terrain.transform.position.y;
editContext.Repaint(RepaintFlags.UI);
return(true);
}
BrushTransform brushXform = TerrainPaintUtility.CalculateBrushTransform(terrain, editContext.uv, editContext.brushSize, 0.0f);
PaintContext paintContext = TerrainPaintUtility.BeginPaintHeightmap(terrain, brushXform.GetBrushXYBounds());
ApplyBrushInternal(paintContext, editContext.brushStrength, editContext.brushTexture, brushXform, terrain);
TerrainPaintUtility.EndPaintHeightmap(paintContext, "Terrain Paint - Set Height");
return(true);
}
public override bool OnPaint(Terrain terrain, IOnPaint editContext)
{
Rect brushRect = TerrainPaintUtility.CalculateBrushRectInTerrainUnits(terrain, editContext.uv, editContext.brushSize);
TerrainPaintUtility.PaintContext paintContext = TerrainPaintUtility.BeginPaintHeightmap(terrain, brushRect);
Material mat = GetPaintMaterial();
Vector4 brushParams = new Vector4(editContext.brushStrength, 0.0f, m_FeatureSize, 0.0f);
mat.SetTexture("_BrushTex", editContext.brushTexture);
mat.SetVector("_BrushParams", brushParams);
Graphics.Blit(paintContext.sourceRenderTexture, paintContext.destinationRenderTexture, mat, 0);
TerrainPaintUtility.EndPaintHeightmap(paintContext, "Terrain Paint - Terrace Erosion");
return(false);
}
public override bool OnPaint(Terrain terrain, IOnPaint editContext)
{
Rect brushRect = TerrainPaintUtility.CalculateBrushRectInTerrainUnits(terrain, editContext.uv, editContext.brushSize);
TerrainPaintUtility.PaintContext paintContext = TerrainPaintUtility.BeginPaintHeightmap(terrain, brushRect);
Material mat = TerrainPaintUtility.GetBuiltinPaintMaterial();
Vector4 brushParams = new Vector4(editContext.brushStrength, 0.0f, 0.0f, 0.0f);
mat.SetTexture("_BrushTex", editContext.brushTexture);
mat.SetVector("_BrushParams", brushParams);
Graphics.Blit(paintContext.sourceRenderTexture, paintContext.destinationRenderTexture, mat, (int)TerrainPaintUtility.BuiltinPaintMaterialPasses.SmoothHeights);
TerrainPaintUtility.EndPaintHeightmap(paintContext, "Terrain Paint - Smooth Height");
return(true);
}
/// <summary>Smooths the terrain.</summary>
/// <param name="filterStrength">The strength of the smoothing.</param>
/// <param name="blurDirection">The direction the smoothing should preference. Between -1f - 1f.</param>
public static void SmoothHeightmap(float filterStrength, float blurDirection)
{
Material mat = TerrainPaintUtility.GetBuiltinPaintMaterial();
BrushTransform brushXform = TerrainPaintUtility.CalculateBrushTransform(Land, heightmapCentre, Land.terrainData.size.x, 0.0f);
PaintContext paintContext = TerrainPaintUtility.BeginPaintHeightmap(Land, brushXform.GetBrushXYBounds());
Vector4 brushParams = new Vector4(filterStrength, 0.0f, 0.0f, 0.0f);
mat.SetTexture("_BrushTex", terrainFilterTexture);
mat.SetVector("_BrushParams", brushParams);
Vector4 smoothWeights = new Vector4(Mathf.Clamp01(1.0f - Mathf.Abs(blurDirection)), Mathf.Clamp01(-blurDirection), Mathf.Clamp01(blurDirection), 0.0f);
mat.SetVector("_SmoothWeights", smoothWeights);
TerrainPaintUtility.SetupTerrainToolMaterialProperties(paintContext, brushXform, mat);
Graphics.Blit(paintContext.sourceRenderTexture, paintContext.destinationRenderTexture, mat, (int)TerrainPaintUtility.BuiltinPaintMaterialPasses.SmoothHeights);
TerrainPaintUtility.EndPaintHeightmap(paintContext, "Terrain Filter - Smooth Heights");
}
public override bool OnPaint(Terrain terrain, IOnPaint editContext)
{
if (Event.current.type == EventType.MouseDrag)
{
return(true);
}
BrushTransform brushXform = TerrainPaintUtility.CalculateBrushTransform(terrain, editContext.uv, m_BrushSize, m_BrushRotation);
PaintContext paintContext = TerrainPaintUtility.BeginPaintHeightmap(terrain, brushXform.GetBrushXYBounds());
ApplyBrushInternal(paintContext, m_BrushStrength, editContext.brushTexture, brushXform, terrain);
TerrainPaintUtility.EndPaintHeightmap(paintContext, "Terrain Tools - Stamp Tool Extended");
return(true);
}
public override bool OnPaint(Terrain terrain, IOnPaint editContext)
{
if (Event.current.shift)
{
m_Height = terrain.terrainData.GetInterpolatedHeight(editContext.uv.x, editContext.uv.y) / terrain.terrainData.size.y;
editContext.RepaintAllInspectors();
return(true);
}
BrushTransform brushXform = TerrainPaintUtility.CalculateBrushTransform(terrain, editContext.uv, editContext.brushSize, 0.0f);
PaintContext paintContext = TerrainPaintUtility.BeginPaintHeightmap(terrain, brushXform.GetBrushXYBounds());
ApplyBrushInternal(paintContext, editContext.brushStrength, editContext.brushTexture, brushXform);
TerrainPaintUtility.EndPaintHeightmap(paintContext, "Terrain Paint - Set Height");
return(true);
}
public override void OnSceneGUI(Terrain terrain, IOnSceneGUI editContext)
{
// We're only doing painting operations, early out if it's not a repaint
if (Event.current.type != EventType.Repaint)
{
return;
}
if (editContext.hitValidTerrain)
{
BrushTransform brushXform = TerrainPaintUtility.CalculateBrushTransform(terrain, editContext.raycastHit.textureCoord, editContext.brushSize, 0.0f);
PaintContext ctx = TerrainPaintUtility.BeginPaintHeightmap(terrain, brushXform.GetBrushXYBounds(), 1);
TerrainPaintUtilityEditor.DrawBrushPreview(ctx, TerrainPaintUtilityEditor.BrushPreview.SourceRenderTexture, editContext.brushTexture, brushXform, TerrainPaintUtilityEditor.GetDefaultBrushPreviewMaterial(), 0);
TerrainPaintUtility.ReleaseContextResources(ctx);
}
}
private void DrawBrushPreviews(Terrain terrain, IOnSceneGUI editContext)
{
Vector2 sampleUV;
BrushTransform sampleXform;
PaintContext sampleContext = null;
Material previewMat = TerrainPaintUtilityEditor.GetDefaultBrushPreviewMaterial();
// draw sample location brush and create context data to be used when drawing target brush previews
if (m_SampleLocation.terrain != null)
{
sampleUV = TerrainUVFromBrushLocation(m_SampleLocation.terrain, m_SampleLocation.pos);
sampleXform = TerrainPaintUtility.CalculateBrushTransform(m_SampleLocation.terrain, sampleUV, editContext.brushSize, 0);
sampleContext = TerrainPaintUtility.BeginPaintHeightmap(m_SampleLocation.terrain, sampleXform.GetBrushXYBounds());
TerrainPaintUtilityEditor.DrawBrushPreview(sampleContext, TerrainPaintUtilityEditor.BrushPreview.SourceRenderTexture,
editContext.brushTexture, sampleXform, previewMat, 0);
}
// draw brush preview and mesh preview for current mouse position
if (editContext.hitValidTerrain)
{
BrushTransform targetXform = TerrainPaintUtility.CalculateBrushTransform(terrain, editContext.raycastHit.textureCoord, editContext.brushSize, 0f);
PaintContext targetContext = TerrainPaintUtility.BeginPaintHeightmap(terrain, targetXform.GetBrushXYBounds(), 1);
// draw basic preview of brush
TerrainPaintUtilityEditor.DrawBrushPreview(targetContext, TerrainPaintUtilityEditor.BrushPreview.SourceRenderTexture,
editContext.brushTexture, targetXform, previewMat, 0);
if (sampleContext != null && m_PaintHeightmap)
{
ApplyHeightmap(sampleContext, targetContext, targetXform, terrain, editContext.brushTexture, editContext.brushStrength);
// draw preview of brush mesh
RenderTexture.active = targetContext.oldRenderTexture;
previewMat.SetTexture("_HeightmapOrig", targetContext.sourceRenderTexture);
TerrainPaintUtilityEditor.DrawBrushPreview(targetContext, TerrainPaintUtilityEditor.BrushPreview.DestinationRenderTexture,
editContext.brushTexture, targetXform, previewMat, 1);
}
TerrainPaintUtility.ReleaseContextResources(targetContext);
}
if (sampleContext != null)
{
TerrainPaintUtility.ReleaseContextResources(sampleContext);
}
}
override public void OnSceneGUI(Terrain currentTerrain, IOnSceneGUI editContext)
{
if (editContext.hitValidTerrain)
{
Terrain terrain = currentTerrain;
// the smooth brush size is relative to the main brush size
float brushSize = editContext.brushSize * ridgeErodeBrushSize / 100f;
BrushTransform brushXform = TerrainPaintUtility.CalculateBrushTransform(terrain, editContext.raycastHit.textureCoord, brushSize, 0.0f);
PaintContext ctx = TerrainPaintUtility.BeginPaintHeightmap(terrain, brushXform.GetBrushXYBounds(), 1);
Material brushPreviewMat = BrushUtilities.GetDefaultBrushPreviewMaterial();
brushPreviewMat.color = ridgeErodeBrushColor;
BrushUtilities.DrawBrushPreview(ctx, BrushUtilities.BrushPreview.SourceRenderTexture, editContext.brushTexture, brushXform, brushPreviewMat, 0);
TerrainPaintUtility.ReleaseContextResources(ctx);
}
}
private bool DoPaint(Terrain terrain, float brushStrength, Texture brushTexture, BrushTransform brushXform)
{
Rect rect = brushXform.GetBrushXYBounds();
PaintContext paintContext = TerrainPaintUtility.BeginPaintHeightmap(terrain, brushXform.GetBrushXYBounds(), 1);
if (paintContext == null)
{
return(false);
}
paintContext.sourceRenderTexture.filterMode = FilterMode.Bilinear;
Material mat = GetPaintMaterial();
PaintContext maskContext = null;
if (m_TextureMask || m_TextureStencil)
{
TerrainLayer maskTerrainLayer = terrain.terrainData.terrainLayers[m_TextureMask ? m_maskIndex : m_stencilIndex];
maskContext = TerrainPaintUtility.BeginPaintTexture(terrain, rect, maskTerrainLayer);
if (maskContext == null)
{
return(false);
}
mat.SetTexture("_MaskTex", maskContext.sourceRenderTexture);
}
mat.SetInt("_MaskStencil", m_TextureMask ? 1 : (m_TextureStencil ? 2 : 0));
Vector4 brushParams = new Vector4(brushStrength, 0.0f, m_FeatureSize, 0);
mat.SetTexture("_BrushTex", brushTexture);
mat.SetVector("_BrushParams", brushParams);
TerrainPaintUtility.SetupTerrainToolMaterialProperties(paintContext, brushXform, mat);
Graphics.Blit(paintContext.sourceRenderTexture, paintContext.destinationRenderTexture, mat, 0);
TerrainPaintUtility.EndPaintHeightmap(paintContext, "Terrain Paint - Masked Smooth Sharpen");
if (maskContext != null)
{
TerrainPaintUtility.ReleaseContextResources(maskContext);
}
return(true);
}
public override bool OnPaint(Terrain terrain, IOnPaint editContext)
{
BrushTransform brushXform = TerrainPaintUtility.CalculateBrushTransform(terrain, editContext.uv, editContext.brushSize, 0.0f);
Rect rect = brushXform.GetBrushXYBounds();
PaintContext paintContext = TerrainPaintUtility.BeginPaintHeightmap(terrain, rect, 1);
Material mat = GetPaintMaterial();
PaintContext maskContext = null;
if (m_TextureMask || m_TextureStencil)
{
TerrainLayer maskTerrainLayer = terrain.terrainData.terrainLayers[m_TextureMask ? m_maskIndex : m_stencilIndex];
maskContext = TerrainPaintUtility.BeginPaintTexture(terrain, rect, maskTerrainLayer);
if (maskContext == null)
{
return(false);
}
mat.SetTexture("_MaskTex", maskContext.sourceRenderTexture);
}
mat.SetInt("_MaskStencil", m_TextureMask ? 1 : (m_TextureStencil ? 2 : 0));
// apply brush
Vector4 brushParams = new Vector4(
editContext.brushStrength,
m_ErosionStrength,
m_MixStrength,
0.0f);
mat.SetTexture("_BrushTex", editContext.brushTexture);
mat.SetVector("_BrushParams", brushParams);
TerrainPaintUtility.SetupTerrainToolMaterialProperties(paintContext, brushXform, mat);
Graphics.Blit(paintContext.sourceRenderTexture, paintContext.destinationRenderTexture, mat, 0);
TerrainPaintUtility.EndPaintHeightmap(paintContext, "Masked Ridge Erode");
if (maskContext != null)
{
TerrainPaintUtility.ReleaseContextResources(maskContext);
}
return(false);
}
public override void OnSceneGUI(Terrain terrain, IOnSceneGUI editContext)
{
Event evt = Event.current;
if (evt.control && (evt.type == EventType.ScrollWheel))
{
const float k_mouseWheelToHeightRatio = -0.0004f;
// we use distance to modify the scroll speed, so that when a user is up close to the brush, they get fine adjustment, and when the user is far from the brush, it adjusts quickly
m_StampHeightTerrainSpace += Event.current.delta.y * k_mouseWheelToHeightRatio * editContext.raycastHit.distance;
evt.Use();
editContext.Repaint();
}
// We're only doing painting operations, early out if it's not a repaint
if (evt.type != EventType.Repaint)
{
return;
}
if (editContext.hitValidTerrain)
{
BrushTransform brushXform = TerrainPaintUtility.CalculateBrushTransform(terrain, editContext.raycastHit.textureCoord, editContext.brushSize, 0.0f);
PaintContext paintContext = TerrainPaintUtility.BeginPaintHeightmap(terrain, brushXform.GetBrushXYBounds(), 1);
Material material = TerrainPaintUtilityEditor.GetDefaultBrushPreviewMaterial();
TerrainPaintUtilityEditor.DrawBrushPreview(
paintContext, TerrainPaintUtilityEditor.BrushPreview.SourceRenderTexture, editContext.brushTexture, brushXform, material, 0);
// draw result preview
{
ApplyBrushInternal(paintContext, editContext.brushStrength, editContext.brushTexture, brushXform, terrain, evt.shift);
// restore old render target
RenderTexture.active = paintContext.oldRenderTexture;
material.SetTexture("_HeightmapOrig", paintContext.sourceRenderTexture);
TerrainPaintUtilityEditor.DrawBrushPreview(
paintContext, TerrainPaintUtilityEditor.BrushPreview.DestinationRenderTexture, editContext.brushTexture, brushXform, material, 1);
}
TerrainPaintUtility.ReleaseContextResources(paintContext);
}
}
public override bool OnPaint(Terrain terrain, IOnPaint editContext)
{
BrushTransform brushXform = TerrainPaintUtility.CalculateBrushTransform(terrain, editContext.uv, editContext.brushSize, 0.0f);
PaintContext paintContext = TerrainPaintUtility.BeginPaintHeightmap(terrain, brushXform.GetBrushXYBounds(), 1);
paintContext.sourceRenderTexture.filterMode = FilterMode.Bilinear;
Material mat = GetPaintMaterial();
Vector4 brushParams = new Vector4(editContext.brushStrength, 0.0f, m_FeatureSize, 0);
mat.SetTexture("_BrushTex", editContext.brushTexture);
mat.SetVector("_BrushParams", brushParams);
TerrainPaintUtility.SetupTerrainToolMaterialProperties(paintContext, brushXform, mat);
Graphics.Blit(paintContext.sourceRenderTexture, paintContext.destinationRenderTexture, mat, 0);
TerrainPaintUtility.EndPaintHeightmap(paintContext, "Terrain Paint - Flatten Slope Height");
return(false);
}
public bool OnPaint(Terrain terrain, IOnPaint editContext, float brushSize, float brushRotation, float brushStrength, Vector2 uv)
{
if (Event.current != null && Event.current.shift)
{
BrushTransform brushXform = TerrainPaintUtility.CalculateBrushTransform(terrain, uv, brushSize, brushRotation);
PaintContext paintContext = TerrainPaintUtility.BeginPaintHeightmap(terrain, brushXform.GetBrushXYBounds());
Material mat = GetMaterial(); //TerrainPaintUtility.GetBuiltinPaintMaterial();
float m_direction = 0.0f; //TODO: UI for this
Vector4 brushParams = new Vector4(brushStrength, 0.0f, 0.0f, 0.0f);
mat.SetTexture("_BrushTex", editContext.brushTexture);
mat.SetVector("_BrushParams", brushParams);
Vector4 smoothWeights = new Vector4(
Mathf.Clamp01(1.0f - Mathf.Abs(m_direction)), // centered
Mathf.Clamp01(-m_direction), // min
Mathf.Clamp01(m_direction), // max
0);
mat.SetInt("_KernelSize", (int)Mathf.Max(1, kernelSize)); // kernel size
mat.SetVector("_SmoothWeights", smoothWeights);
var texelCtx = Utility.CollectTexelValidity(paintContext.originTerrain, brushXform.GetBrushXYBounds(), 1);
Utility.SetupMaterialForPaintingWithTexelValidityContext(paintContext, texelCtx, brushXform, mat);
paintContext.sourceRenderTexture.wrapMode = TextureWrapMode.Clamp;
var temp = RTUtils.GetTempHandle(paintContext.destinationRenderTexture.descriptor);
temp.RT.wrapMode = TextureWrapMode.Clamp;
mat.SetVector("_BlurDirection", Vector2.right);
Graphics.Blit(paintContext.sourceRenderTexture, temp, mat);
mat.SetVector("_BlurDirection", Vector2.up);
Graphics.Blit(temp, paintContext.destinationRenderTexture, mat);
TerrainPaintUtility.EndPaintHeightmap(paintContext, "Terrain Paint - Smooth Height");
texelCtx.Cleanup();
RTUtils.Release(temp);
return(true);
}
return(false);
}
public override bool OnPaint(Terrain terrain, IOnPaint editContext)
{
float brushStrength = Event.current.shift ? -editContext.brushStrength : editContext.brushStrength;
Material mat = TerrainPaintUtility.GetBuiltinPaintMaterial();
Rect brushRect = TerrainPaintUtility.CalculateBrushRectInTerrainUnits(terrain, editContext.uv, editContext.brushSize);
TerrainPaintUtility.PaintContext paintContext = TerrainPaintUtility.BeginPaintHeightmap(terrain, brushRect);
// apply brush
Vector4 brushParams = new Vector4(brushStrength * 0.01f, 0.0f, 0.0f, 0.0f);
mat.SetTexture("_BrushTex", editContext.brushTexture);
mat.SetVector("_BrushParams", brushParams);
Graphics.Blit(paintContext.sourceRenderTexture, paintContext.destinationRenderTexture, mat, (int)TerrainPaintUtility.BuiltinPaintMaterialPasses.RaiseLowerHeight);
TerrainPaintUtility.EndPaintHeightmap(paintContext, "Terrain Paint - Raise or Lower Height");
return(true);
}
public override void OnSceneGUI(Terrain terrain, IOnSceneGUI editContext)
{
Event evt = Event.current;
if (evt.shift && (evt.type == EventType.ScrollWheel))
{
m_StampHeight += Event.current.delta.y * -0.0000007f * editContext.raycastHit.distance;
evt.Use();
}
// We're only doing painting operations, early out if it's not a repaint
if (evt.type != EventType.Repaint)
{
return;
}
if (editContext.hitValidTerrain)
{
BrushTransform brushXform = TerrainPaintUtility.CalculateBrushTransform(terrain, editContext.raycastHit.textureCoord, editContext.brushSize, 0.0f);
PaintContext paintContext = TerrainPaintUtility.BeginPaintHeightmap(terrain, brushXform.GetBrushXYBounds(), 1);
Material material = TerrainPaintUtilityEditor.GetDefaultBrushPreviewMaterial();
TerrainPaintUtilityEditor.DrawBrushPreview(
paintContext, TerrainPaintUtilityEditor.BrushPreview.SourceRenderTexture, editContext.brushTexture, brushXform, material, 0);
// draw result preview
{
ApplyBrushInternal(paintContext, editContext.brushStrength, editContext.brushTexture, brushXform);
// restore old render target
RenderTexture.active = paintContext.oldRenderTexture;
material.SetTexture("_HeightmapOrig", paintContext.sourceRenderTexture);
TerrainPaintUtilityEditor.DrawBrushPreview(
paintContext, TerrainPaintUtilityEditor.BrushPreview.DestinationRenderTexture, editContext.brushTexture, brushXform, material, 1);
}
TerrainPaintUtility.ReleaseContextResources(paintContext);
}
}
private PaintContext ApplyBrushInternal(Terrain terrain, Vector2 brushCenterTerrainSpaceXZ, int extraBorderPixels)
{
float maxScale = Mathf.Max(m_StampScale.x, m_StampScale.z);
Vector2 brushSizeScaled = new Vector2(maxScale * 2.0f, maxScale * 2.0f);
Rect brushRect = new Rect(brushCenterTerrainSpaceXZ - brushSizeScaled * 0.5f, brushSizeScaled);
PaintContext context = TerrainPaintUtility.BeginPaintHeightmap(terrain, brushRect, extraBorderPixels);
Material mat = GetPaintMaterial();
DrawMesh(terrain, context, maxScale, mat);
// draw to heightmap
mat.SetTexture("_MeshStampTex", m_MeshRenderTexture);
Graphics.Blit(context.sourceRenderTexture, context.destinationRenderTexture, mat, (int)ShaderPasses.StampToHeightmap);
RenderTexture.ReleaseTemporary(m_MeshRenderTexture);
m_MeshRenderTexture = null;
return(context);
}
public override void OnSceneGUI(Terrain terrain, IOnSceneGUI editContext)
{
commonUI.OnSceneGUI2D(terrain, editContext);
if (editContext.hitValidTerrain || commonUI.isInUse)
{
commonUI.OnSceneGUI(terrain, editContext);
if (Event.current.type != EventType.Repaint)
{
return;
}
if (bridgeToolProperties != null && bridgeToolProperties.widthProfile != null)
{
float endWidth = Mathf.Abs(bridgeToolProperties.widthProfile.Evaluate(1.0f));
BrushTransform brushXform = TerrainPaintUtility.CalculateBrushTransform(terrain, commonUI.raycastHitUnderCursor.textureCoord, commonUI.brushSize * endWidth, commonUI.brushRotation);
PaintContext ctx = TerrainPaintUtility.BeginPaintHeightmap(terrain, brushXform.GetBrushXYBounds(), 1);
TerrainPaintUtilityEditor.DrawBrushPreview(ctx, TerrainPaintUtilityEditor.BrushPreview.SourceRenderTexture, editContext.brushTexture, brushXform, TerrainPaintUtilityEditor.GetDefaultBrushPreviewMaterial(), 0);
TerrainPaintUtility.ReleaseContextResources(ctx);
}
}
if (Event.current.type != EventType.Repaint)
{
return;
}
//display a brush preview at the bridge starting location, using starting size from width profile
if (m_StartTerrain != null)
{
float startWidth = Mathf.Abs(bridgeToolProperties.widthProfile.Evaluate(0.0f));
BrushTransform brushTransform = TerrainPaintUtility.CalculateBrushTransform(m_StartTerrain, m_StartPoint, commonUI.brushSize * startWidth, commonUI.brushRotation);
PaintContext sampleContext = TerrainPaintUtility.BeginPaintHeightmap(m_StartTerrain, brushTransform.GetBrushXYBounds());
TerrainPaintUtilityEditor.DrawBrushPreview(sampleContext, TerrainPaintUtilityEditor.BrushPreview.SourceRenderTexture,
editContext.brushTexture, brushTransform, TerrainPaintUtilityEditor.GetDefaultBrushPreviewMaterial(), 0);
TerrainPaintUtility.ReleaseContextResources(sampleContext);
}
}
private void PaintHeightmap(Rect writeBrushRect, Terrain terrain, Material mat)
{
TerrainPaintUtility.PaintContext write = TerrainPaintUtility.BeginPaintHeightmap(terrain, writeBrushRect);
// read created manually to use write's rect with offset
TerrainPaintUtility.PaintContext read = new TerrainPaintUtility.PaintContext();
read.brushRect = new RectInt(write.brushRect.position + m_CloneRectPixelOffsetFromStampRect, write.brushRect.size);
// TODO(wyatt): Uncomment this once Andrew's API changes make it to trunk
read.CreateTerrainTiles(m_Sample.m_Terrain,
m_Sample.m_Terrain.terrainData.heightmapWidth,
m_Sample.m_Terrain.terrainData.heightmapHeight);
read.CreateRenderTargets(m_Sample.m_Terrain.terrainData.heightmapTexture.format);
read.GatherHeightmap(m_Sample.m_Terrain);
// render mix of clone and stamp areas
StampRender(read, write, mat, (int)ShaderPasses.CloneHeightmap);
TerrainPaintUtility.ReleaseContextResources(read);
TerrainPaintUtility.EndPaintHeightmap(write, "Terrain Paint - Clone Stamp Tool (Heightmap)");
}
public override bool OnPaint(Terrain terrain, IOnPaint editContext)
{
BrushTransform brushXform = TerrainPaintUtility.CalculateBrushTransform(terrain, editContext.uv, editContext.brushSize, 0.0f);
PaintContext paintContext = TerrainPaintUtility.BeginPaintHeightmap(terrain, brushXform.GetBrushXYBounds(), 1);
Material mat = GetPaintMaterial();
// apply brush
Vector4 brushParams = new Vector4(
editContext.brushStrength,
m_ErosionStrength,
m_MixStrength,
0.0f);
mat.SetTexture("_BrushTex", editContext.brushTexture);
mat.SetVector("_BrushParams", brushParams);
TerrainPaintUtility.SetupTerrainToolMaterialProperties(paintContext, brushXform, mat);
Graphics.Blit(paintContext.sourceRenderTexture, paintContext.destinationRenderTexture, mat, 0);
TerrainPaintUtility.EndPaintHeightmap(paintContext, "Terrain Ridge Erode");
return(false);
}
public override bool OnPaint(Terrain terrain, IOnPaint editContext)
{
Rect brushRect = TerrainPaintUtility.CalculateBrushRectInTerrainUnits(terrain, editContext.uv, editContext.brushSize);
TerrainPaintUtility.PaintContext paintContext = TerrainPaintUtility.BeginPaintHeightmap(terrain, brushRect);
float finalTwistAmount = m_TwistAmount * -0.001f; //scale to a reasonable value and negate so default mode is clockwise
if (Event.current.shift)
{
finalTwistAmount *= -1.0f;
}
Material mat = GetPaintMaterial();
Vector4 brushParams = new Vector4(editContext.brushStrength, 0.0f, finalTwistAmount, 0.0f);
mat.SetTexture("_BrushTex", editContext.brushTexture);
mat.SetVector("_BrushParams", brushParams);
Graphics.Blit(paintContext.sourceRenderTexture, paintContext.destinationRenderTexture, mat, 0);
TerrainPaintUtility.EndPaintHeightmap(paintContext, "Terrain Paint - Twist Height");
return(false);
}
public override bool OnPaint(Terrain terrain, IOnPaint editContext)
{
if (Event.current.shift)
{
m_Height = terrain.terrainData.GetInterpolatedHeight(editContext.uv.x, editContext.uv.y) / terrain.terrainData.size.y;
editContext.RepaintAllInspectors();
return(true);
}
Material mat = TerrainPaintUtility.GetBuiltinPaintMaterial();
Rect brushRect = TerrainPaintUtility.CalculateBrushRectInTerrainUnits(terrain, editContext.uv, editContext.brushSize);
TerrainPaintUtility.PaintContext paintContext = TerrainPaintUtility.BeginPaintHeightmap(terrain, brushRect);
Vector4 brushParams = new Vector4(editContext.brushStrength * 0.01f, 0.5f * m_Height, 0.0f, 0.0f);
mat.SetTexture("_BrushTex", editContext.brushTexture);
mat.SetVector("_BrushParams", brushParams);
Graphics.Blit(paintContext.sourceRenderTexture, paintContext.destinationRenderTexture, mat, (int)TerrainPaintUtility.BuiltinPaintMaterialPasses.SetHeights);
TerrainPaintUtility.EndPaintHeightmap(paintContext, "Terrain Paint - Set Height");
return(true);
}
public override void OnSceneGUI(Terrain terrain, IOnSceneGUI editContext)
{
// there's probably more logic we need to handle here
if (paintInProgress && (Event.current.type == EventType.MouseUp))
{
MaterialManager mgr = terrain.GetComponent <MaterialManager>();
if (mgr != null)
{
mgr.GetIndexMap().SetIndexMapDirty();
}
paintInProgress = false;
}
// We're only doing painting operations, early out if it's not a repaint
if (Event.current.type != EventType.Repaint)
{
return;
}
if (editContext.hitValidTerrain)
{
if (lastUV != editContext.raycastHit.textureCoord)
{
editContext.Repaint(RepaintFlags.UI);
}
lastUV = editContext.raycastHit.textureCoord;
lastBrushSize = editContext.brushSize;
BrushTransform brushXform = TerrainPaintUtility.CalculateBrushTransform(terrain, editContext.raycastHit.textureCoord, editContext.brushSize, 0.0f);
PaintContext ctx = TerrainPaintUtility.BeginPaintHeightmap(terrain, brushXform.GetBrushXYBounds(), 1);
Material brushPreviewMaterial = GetBrushPreviewMaterial();
Vector4 brushParams = new Vector4(editContext.brushStrength, 0.0f, 0.0f, 0.0f);
brushPreviewMaterial.SetVector("_BrushParams", brushParams);
TerrainPaintUtilityEditor.DrawBrushPreview(ctx, TerrainPaintUtilityEditor.BrushPreview.SourceRenderTexture, editContext.brushTexture, brushXform, brushPreviewMaterial, 0);
TerrainPaintUtility.ReleaseContextResources(ctx);
}
}
public override bool OnPaint(Terrain terrain, IOnPaint editContext)
{
commonUI.OnPaint(terrain, editContext);
if (!commonUI.allowPaint)
{
return(true);
}
if (Event.current.type == EventType.MouseDown)
{
m_PrevBrushPos = editContext.uv;
return(false);
}
if (Event.current.type == EventType.MouseDrag && m_PreviousEvent == EventType.MouseDrag)
{
Vector2 uv = editContext.uv;
if (commonUI.ScatterBrushStamp(ref terrain, ref uv))
{
Material mat = GetPaintMaterial();
Vector2 smudgeDir = uv - m_PrevBrushPos;
BrushTransform brushXform = TerrainPaintUtility.CalculateBrushTransform(terrain, uv, commonUI.brushSize, commonUI.brushRotation);
Vector4 brushParams = new Vector4(commonUI.brushStrength, smudgeDir.x, smudgeDir.y, 0);
mat.SetTexture("_BrushTex", editContext.brushTexture);
mat.SetVector("_BrushParams", brushParams);
//smudge splat map
if (m_AffectMaterials)
{
for (int i = 0; i < terrain.terrainData.terrainLayers.Length; i++)
{
TerrainLayer layer = terrain.terrainData.terrainLayers[i];
if (layer == null)
{
continue; // nothing to paint if the layer is NULL
}
PaintContext sampleContext = TerrainPaintUtility.BeginPaintTexture(terrain, brushXform.GetBrushXYBounds(), layer);
Graphics.Blit(sampleContext.sourceRenderTexture, sampleContext.destinationRenderTexture, mat, 0);
TerrainPaintUtility.EndPaintTexture(sampleContext, "Terrain Paint - Twist Brush (Texture)");
}
}
//smudge the height map
if (m_AffectHeight)
{
PaintContext paintContext = TerrainPaintUtility.BeginPaintHeightmap(terrain, brushXform.GetBrushXYBounds(), 1);
TerrainPaintUtility.SetupTerrainToolMaterialProperties(paintContext, brushXform, mat);
Graphics.Blit(paintContext.sourceRenderTexture, paintContext.destinationRenderTexture, mat, 0);
TerrainPaintUtility.EndPaintHeightmap(paintContext, "Terrain Paint - Twist Brush (Height)");
}
m_PrevBrushPos = uv;
}
}
m_PreviousEvent = Event.current.type;
return(false);
}
public override bool OnPaint(Terrain terrain, IOnPaint editContext)
{
Vector2 uv = editContext.uv;
//grab the starting position & height
if (Event.current.shift)
{
float height = terrain.terrainData.GetInterpolatedHeight(uv.x, uv.y) / terrain.terrainData.size.y;
m_StartPoint = new Vector3(uv.x, uv.y, height);
m_StartTerrain = terrain;
return(true);
}
if (!m_StartTerrain || (Event.current.type == EventType.MouseDrag))
{
return(true);
}
//get the target position & height
float targetHeight = terrain.terrainData.GetInterpolatedHeight(uv.x, uv.y) / terrain.terrainData.size.y;
Vector3 targetPos = new Vector3(uv.x, uv.y, targetHeight);
if (terrain != m_StartTerrain)
{
//figure out the stroke vector in uv,height space
Vector2 targetWorld = transformToWorld(terrain, uv);
Vector2 targetUVs = transformToUVSpace(m_StartTerrain, targetWorld);
targetPos.x = targetUVs.x;
targetPos.y = targetUVs.y;
}
Vector3 stroke = targetPos - m_StartPoint;
float strokeLength = stroke.magnitude;
int numSplats = (int)(strokeLength / (0.001f * m_Spacing));
Terrain currTerrain = m_StartTerrain;
Material mat = GetPaintMaterial();
Vector2 posOffset = new Vector2(0.0f, 0.0f);
Vector2 currUV = new Vector2();
Vector4 brushParams = new Vector4();
Vector2 jitterVec = new Vector2(-stroke.z, stroke.x); //perpendicular to stroke direction
jitterVec.Normalize();
for (int i = 0; i < numSplats; i++)
{
float pct = (float)i / (float)numSplats;
float widthScale = widthProfile.Evaluate(pct);
float heightOffset = heightProfile.Evaluate(pct) / currTerrain.terrainData.size.y;
float strengthScale = strengthProfile.Evaluate(pct);
float jitterOffset = jitterProfile.Evaluate(pct) / Mathf.Max(currTerrain.terrainData.size.x, currTerrain.terrainData.size.z);
Vector3 currPos = m_StartPoint + pct * stroke;
//add in jitter offset (needs to happen before tile correction)
currPos.x += posOffset.x + jitterOffset * jitterVec.x;
currPos.y += posOffset.y + jitterOffset * jitterVec.y;
if (currPos.x >= 1.0f && (currTerrain.rightNeighbor != null))
{
currTerrain = currTerrain.rightNeighbor;
currPos.x -= 1.0f;
posOffset.x -= 1.0f;
}
if (currPos.x <= 0.0f && (currTerrain.leftNeighbor != null))
{
currTerrain = currTerrain.leftNeighbor;
currPos.x += 1.0f;
posOffset.x += 1.0f;
}
if (currPos.y >= 1.0f && (currTerrain.topNeighbor != null))
{
currTerrain = currTerrain.topNeighbor;
currPos.y -= 1.0f;
posOffset.y -= 1.0f;
}
if (currPos.y <= 0.0f && (currTerrain.bottomNeighbor != null))
{
currTerrain = currTerrain.bottomNeighbor;
currPos.y += 1.0f;
posOffset.y += 1.0f;
}
currUV.x = currPos.x;
currUV.y = currPos.y;
int finalBrushSize = (int)(widthScale * (float)editContext.brushSize);
float finalHeight = (m_StartPoint + pct * stroke).z + heightOffset;
BrushTransform brushXform = TerrainPaintUtility.CalculateBrushTransform(currTerrain, currUV, finalBrushSize, 0.0f);
PaintContext paintContext = TerrainPaintUtility.BeginPaintHeightmap(currTerrain, brushXform.GetBrushXYBounds());
mat.SetTexture("_BrushTex", editContext.brushTexture);
brushParams.x = editContext.brushStrength * strengthScale;
brushParams.y = 0.5f * finalHeight;
mat.SetVector("_BrushParams", brushParams);
TerrainPaintUtility.SetupTerrainToolMaterialProperties(paintContext, brushXform, mat);
Graphics.Blit(paintContext.sourceRenderTexture, paintContext.destinationRenderTexture, mat, 0);
TerrainPaintUtility.EndPaintHeightmap(paintContext, "Terrain Paint - Bridge");
}
return(false);
}
public override bool OnPaint(Terrain terrain, IOnPaint editContext)
{
Vector2 uv = editContext.uv;
//grab the starting position & height
if (Event.current.shift)
{
//m_Height = terrain.terrainData.GetInterpolatedHeight(uv.x, uv.y) / terrain.terrainData.size.y;
float height = terrain.terrainData.GetInterpolatedHeight(uv.x, uv.y) / terrain.terrainData.size.y;
m_StartPoint = new Vector3(uv.x, uv.y, height);
m_StartTerrain = terrain;
return(true);
}
if (!m_StartTerrain || (Event.current.type == EventType.MouseDrag))
{
return(true);
}
//get the target position & height
float targetHeight = terrain.terrainData.GetInterpolatedHeight(uv.x, uv.y) / terrain.terrainData.size.y;
Vector3 targetPos = new Vector3(uv.x, uv.y, targetHeight);
if (terrain != m_StartTerrain)
{
//figure out the stroke vector in uv,height space
Vector2 targetWorld = transformToWorld(terrain, uv);
Vector2 targetUVs = transformToUVSpace(m_StartTerrain, targetWorld);
targetPos.x = targetUVs.x;
targetPos.y = targetUVs.y;
}
Vector3 stroke = targetPos - m_StartPoint;
float strokeLength = stroke.magnitude;
int numSplats = (int)(strokeLength / (0.001f * m_Spacing));
Terrain currTerrain = m_StartTerrain;
Material mat = TerrainPaintUtility.GetBuiltinPaintMaterial();
Vector2 posOffset = new Vector2(0.0f, 0.0f);
for (int i = 0; i < numSplats; i++)
{
float pct = (float)i / (float)numSplats;
float widthScale = widthProfile.Evaluate(pct);
float heightScale = heightProfile.Evaluate(pct);
float strengthScale = strengthProfile.Evaluate(pct);
Vector3 currPos = m_StartPoint + pct * stroke;
currPos.x += posOffset.x;
currPos.y += posOffset.y;
if (currPos.x >= 1.0f && (currTerrain.rightNeighbor != null))
{
currTerrain = currTerrain.rightNeighbor;
currPos.x -= 1.0f;
posOffset.x -= 1.0f;
}
if (currPos.x <= 0.0f && (currTerrain.leftNeighbor != null))
{
currTerrain = currTerrain.leftNeighbor;
currPos.x += 1.0f;
posOffset.x += 1.0f;
}
if (currPos.y >= 1.0f && (currTerrain.topNeighbor != null))
{
currTerrain = currTerrain.topNeighbor;
currPos.y -= 1.0f;
posOffset.y -= 1.0f;
}
if (currPos.y <= 0.0f && (currTerrain.bottomNeighbor != null))
{
currTerrain = currTerrain.bottomNeighbor;
currPos.y += 1.0f;
posOffset.y += 1.0f;
}
Vector2 currUV = new Vector2(currPos.x, currPos.y);
int finalBrushSize = (int)(widthScale * (float)editContext.brushSize);
float finalHeight = (m_StartPoint + heightScale * stroke).z;
Rect brushRect = TerrainPaintUtility.CalculateBrushRectInTerrainUnits(currTerrain, currUV, finalBrushSize);
TerrainPaintUtility.PaintContext paintContext = TerrainPaintUtility.BeginPaintHeightmap(currTerrain, brushRect);
Vector4 brushParams = new Vector4(strengthScale * editContext.brushStrength * 0.01f, 0.5f * finalHeight, 0.0f, editContext.brushRotation);
mat.SetTexture("_BrushTex", editContext.brushTexture);
mat.SetVector("_BrushParams", brushParams);
Graphics.Blit(paintContext.sourceRenderTexture, paintContext.destinationRenderTexture, mat, 2);
TerrainPaintUtility.EndPaintHeightmap(paintContext, "Terrain Paint - Bridge");
}
return(false);
}