196 lines
8.5 KiB
C#
196 lines
8.5 KiB
C#
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using System.Collections.Generic;
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using UnityEngine;
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namespace Pinwheel.Griffin.PaintTool
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{
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public class GMetallicPainter : IGTexturePainter, IGTexturePainterWithLivePreview
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{
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public string Instruction
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{
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get
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{
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string s = string.Format(
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"Modify terrain Metallic Map Red channel.\n" +
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" - Hold Left Mouse to paint.\n" +
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" - Hold Ctrl & Left Mouse to erase.\n" +
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" - Hold Shift & Left Mouse to smooth.\n" +
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"This painter uses the Red channel of brush color.\n" +
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"Use a material that utilizes Metallic Map to see the result.");
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return s;
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}
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}
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public string HistoryPrefix
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{
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get
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{
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return "Metallic Painting";
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}
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}
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public List<GTerrainResourceFlag> GetResourceFlagForHistory(GTexturePainterArgs args)
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{
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return GCommon.MetallicResourceFlags;
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}
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private void SetupTextureGrid(GStylizedTerrain t, Material mat)
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{
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mat.SetTexture("_MainTex_Left",
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t.LeftNeighbor && t.LeftNeighbor.TerrainData ?
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t.LeftNeighbor.TerrainData.Shading.MetallicMapOrDefault :
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Texture2D.blackTexture);
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mat.SetTexture("_MainTex_TopLeft",
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t.LeftNeighbor && t.LeftNeighbor.TopNeighbor && t.LeftNeighbor.TopNeighbor.TerrainData ?
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t.LeftNeighbor.TopNeighbor.TerrainData.Shading.MetallicMapOrDefault :
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Texture2D.blackTexture);
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mat.SetTexture("_MainTex_TopLeft",
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t.TopNeighbor && t.TopNeighbor.LeftNeighbor && t.TopNeighbor.LeftNeighbor.TerrainData ?
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t.TopNeighbor.LeftNeighbor.TerrainData.Shading.MetallicMapOrDefault :
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Texture2D.blackTexture);
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mat.SetTexture("_MainTex_Top",
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t.TopNeighbor && t.TopNeighbor.TerrainData ?
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t.TopNeighbor.TerrainData.Shading.MetallicMapOrDefault :
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Texture2D.blackTexture);
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mat.SetTexture("_MainTex_TopRight",
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t.RightNeighbor && t.RightNeighbor.TopNeighbor && t.RightNeighbor.TopNeighbor.TerrainData ?
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t.RightNeighbor.TopNeighbor.TerrainData.Shading.MetallicMapOrDefault :
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Texture2D.blackTexture);
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mat.SetTexture("_MainTex_TopRight",
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t.TopNeighbor && t.TopNeighbor.RightNeighbor && t.TopNeighbor.RightNeighbor.TerrainData ?
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t.TopNeighbor.RightNeighbor.TerrainData.Shading.MetallicMapOrDefault :
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Texture2D.blackTexture);
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mat.SetTexture("_MainTex_Right",
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t.RightNeighbor && t.RightNeighbor.TerrainData ?
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t.RightNeighbor.TerrainData.Shading.MetallicMapOrDefault :
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Texture2D.blackTexture);
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mat.SetTexture("_MainTex_BottomRight",
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t.RightNeighbor && t.RightNeighbor.BottomNeighbor && t.RightNeighbor.BottomNeighbor.TerrainData ?
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t.RightNeighbor.BottomNeighbor.TerrainData.Shading.MetallicMapOrDefault :
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Texture2D.blackTexture);
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mat.SetTexture("_MainTex_BottomRight",
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t.BottomNeighbor && t.BottomNeighbor.RightNeighbor && t.BottomNeighbor.RightNeighbor.TerrainData ?
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t.BottomNeighbor.RightNeighbor.TerrainData.Shading.MetallicMapOrDefault :
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Texture2D.blackTexture);
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mat.SetTexture("_MainTex_Bottom",
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t.BottomNeighbor && t.BottomNeighbor.TerrainData ?
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t.BottomNeighbor.TerrainData.Shading.MetallicMapOrDefault :
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Texture2D.blackTexture);
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mat.SetTexture("_MainTex_BottomLeft",
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t.LeftNeighbor && t.LeftNeighbor.BottomNeighbor && t.LeftNeighbor.BottomNeighbor.TerrainData ?
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t.LeftNeighbor.BottomNeighbor.TerrainData.Shading.MetallicMapOrDefault :
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Texture2D.blackTexture);
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mat.SetTexture("_MainTex_BottomLeft",
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t.BottomNeighbor && t.BottomNeighbor.LeftNeighbor && t.BottomNeighbor.LeftNeighbor.TerrainData ?
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t.BottomNeighbor.LeftNeighbor.TerrainData.Shading.MetallicMapOrDefault :
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Texture2D.blackTexture);
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}
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public void Paint(Pinwheel.Griffin.GStylizedTerrain terrain, GTexturePainterArgs args)
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{
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if (terrain.TerrainData == null)
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return;
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if (args.MouseEventType == GPainterMouseEventType.Up)
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{
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return;
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}
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Vector2[] uvCorners = new Vector2[args.WorldPointCorners.Length];
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for (int i = 0; i < uvCorners.Length; ++i)
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{
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uvCorners[i] = terrain.WorldPointToUV(args.WorldPointCorners[i]);
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}
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Rect dirtyRect = GUtilities.GetRectContainsPoints(uvCorners);
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if (!dirtyRect.Overlaps(new Rect(0, 0, 1, 1)))
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return;
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Texture2D bg = terrain.TerrainData.Shading.MetallicMapOrDefault;
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int metallicResolution = terrain.TerrainData.Shading.MetallicMapResolution;
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RenderTexture rt = GTerrainTexturePainter.Internal_GetRenderTexture(metallicResolution);
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GCommon.CopyToRT(bg, rt);
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Material mat = GInternalMaterials.MetallicPainterMaterial;
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mat.SetColor("_Color", args.Color);
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mat.SetTexture("_MainTex", bg);
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SetupTextureGrid(terrain, mat);
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mat.SetTexture("_Mask", args.BrushMask);
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mat.SetFloat("_Opacity", args.Opacity);
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if (args.EnableTerrainMask)
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{
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mat.SetTexture("_TerrainMask", terrain.TerrainData.Mask.MaskMapOrDefault);
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}
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else
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{
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mat.SetTexture("_TerrainMask", Texture2D.blackTexture);
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}
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int pass =
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args.ActionType == GPainterActionType.Normal ? 0 :
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args.ActionType == GPainterActionType.Negative ? 1 :
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args.ActionType == GPainterActionType.Alternative ? 2 : 0;
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GCommon.DrawQuad(rt, uvCorners, mat, pass);
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RenderTexture.active = rt;
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terrain.TerrainData.Shading.MetallicMap.ReadPixels(
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new Rect(0, 0, metallicResolution, metallicResolution), 0, 0);
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terrain.TerrainData.Shading.MetallicMap.Apply();
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RenderTexture.active = null;
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terrain.TerrainData.SetDirty(GTerrainData.DirtyFlags.Shading);
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if (!args.ForceUpdateGeometry)
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return;
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terrain.TerrainData.Geometry.SetRegionDirty(dirtyRect);
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terrain.TerrainData.SetDirty(GTerrainData.DirtyFlags.Geometry);
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}
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public void Editor_DrawLivePreview(GStylizedTerrain terrain, GTexturePainterArgs args, Camera cam)
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{
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#if UNITY_EDITOR
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Vector2[] uvCorners = new Vector2[args.WorldPointCorners.Length];
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for (int i = 0; i < uvCorners.Length; ++i)
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{
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uvCorners[i] = terrain.WorldPointToUV(args.WorldPointCorners[i]);
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}
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Rect dirtyRect = GUtilities.GetRectContainsPoints(uvCorners);
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if (!dirtyRect.Overlaps(new Rect(0, 0, 1, 1)))
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return;
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Texture2D bg = terrain.TerrainData.Shading.MetallicMapOrDefault;
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int metallicResolution = terrain.TerrainData.Shading.MetallicMapResolution;
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RenderTexture rt = GTerrainTexturePainter.Internal_GetRenderTexture(terrain, metallicResolution);
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GCommon.CopyToRT(bg, rt);
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Material mat = GInternalMaterials.MetallicPainterMaterial;
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mat.SetColor("_Color", args.Color);
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mat.SetTexture("_MainTex", bg);
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SetupTextureGrid(terrain, mat);
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mat.SetTexture("_Mask", args.BrushMask);
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mat.SetFloat("_Opacity", args.Opacity);
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if (args.EnableTerrainMask)
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{
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mat.SetTexture("_TerrainMask", terrain.TerrainData.Mask.MaskMapOrDefault);
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}
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else
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{
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mat.SetTexture("_TerrainMask", Texture2D.blackTexture);
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}
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int pass =
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args.ActionType == GPainterActionType.Normal ? 0 :
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args.ActionType == GPainterActionType.Negative ? 1 :
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args.ActionType == GPainterActionType.Alternative ? 2 : 0;
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GCommon.DrawQuad(rt, uvCorners, mat, pass);
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GLivePreviewDrawer.DrawMetallicSmoothnessLivePreview(terrain, cam, rt, dirtyRect);
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#endif
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}
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}
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}
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