Experimental: this API is experimental and might be changed or removed in the future.
TerrainPaintTool<T0>
class in
UnityEditor.Experimental.TerrainAPI
/
Inherits from:ScriptableObject
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using UnityEngine;
using UnityEditor;
using UnityEngine.Experimental.TerrainAPI;
namespace UnityEditor.Experimental.TerrainAPI
{
public class MyPaintHeightTool : TerrainPaintTool<MyPaintHeightTool>
{
Material m_Material = null;
Material GetPaintMaterial()
{
if (m_Material == null)
m_Material = new Material(Shader.Find("Hidden/Terrain/PaintHeight"));
return m_Material;
}
public override string GetName()
{
return "My Paint Height Tool";
}
public override string GetDesc()
{
return "Left click to raise.\n\nHold shift and left click to lower.";
}
public override void OnSceneGUI(Terrain terrain, IOnSceneGUI editContext)
{
TerrainPaintUtilityEditor.ShowDefaultPreviewBrush(terrain, editContext.brushTexture, editContext.brushSize);
}
public override bool OnPaint(Terrain terrain, IOnPaint editContext)
{
Material mat = TerrainPaintUtility.GetBuiltinPaintMaterial();
float rotationDegrees = 0.0f;
BrushTransform brushXform = TerrainPaintUtility.CalculateBrushTransform(terrain, editContext.uv, editContext.brushSize, rotationDegrees);
PaintContext paintContext = TerrainPaintUtility.BeginPaintHeightmap(terrain, brushXform.GetBrushXYBounds());
// apply brush
Vector4 brushParams = new Vector4(editContext.brushStrength * 0.01f, 0.0f, 0.0f, 0.0f);
mat.SetTexture("_BrushTex", editContext.brushTexture);
mat.SetVector("_BrushParams", brushParams);
TerrainPaintUtility.SetupTerrainToolMaterialProperties(paintContext, brushXform, mat);
Graphics.Blit(paintContext.sourceRenderTexture, paintContext.destinationRenderTexture, mat, (int)TerrainPaintUtility.BuiltinPaintMaterialPasses.RaiseLowerHeight);
TerrainPaintUtility.EndPaintHeightmap(paintContext, "Terrain Paint - MyPaintHeightTool");
return false;
}
}
}