86 lines
2.0 KiB
C#
86 lines
2.0 KiB
C#
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using System.Collections;
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using System.Collections.Generic;
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using Godot;
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using System;
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namespace Rokojori
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{
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[Tool]
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[GlobalClass]
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public partial class PointMeshBaker:Node
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{
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[Export]
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public Texture2D albedo;
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[Export]
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public Texture2D normal;
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[Export]
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public MeshInstance3D output;
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[Export]
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public int pixelsX;
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[Export]
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public int pixelsY;
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[Export]
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public Vector2 pivot;
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[Export]
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public Vector3 offset;
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[Export]
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public Vector3 scale;
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[ExportToolButton( "Bake")]
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public Callable BakeButton => Callable.From( () =>
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{
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BakePointMesh();
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}
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);
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public void BakePointMesh()
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{
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var mg = new MeshGeometry( true, false, true, false );
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mg.customMeshAttributes.Add( new MeshAttributeVector4List( 0 ) );
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mg.normals = null;
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var albedoImage = albedo.GetImage();
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var normalImage = normal.GetImage();
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var index = 0;
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for ( int x = 0; x < pixelsX; x++ )
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{
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for ( int y = 0; y < pixelsY; y++ )
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{
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var fx = x / (float) pixelsX;
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var fy = 1f - y / (float) pixelsY;
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var position = new Vector3( fx - pivot.X, fy - pivot.Y, 0 ) * scale + offset;
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var colorPosX = Mathf.FloorToInt( fx * albedoImage.GetSize().X );
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var colorPosY = Mathf.FloorToInt( fy * albedoImage.GetSize().Y );
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var color = albedoImage.GetPixel( colorPosX, colorPosY );
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var normalPosX = Mathf.FloorToInt( fx * normalImage.GetSize().X );
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var normalPosY = Mathf.FloorToInt( fy * normalImage.GetSize().Y );
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var normal = normalImage.GetPixel( normalPosX, normalPosY );
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mg.AddPoint( position, color.srgbToLinear(), normal.srgbToLinear().ToVector3() * 2.0f - Vector3.One, 0 );
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// this.LogInfo( "Created point at:", index, position );
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index ++;
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}
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}
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output = output == null ? this.CreateChild<MeshInstance3D>() : output;
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output.Mesh = mg.GenerateMesh( Mesh.PrimitiveType.Points, null, false );
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}
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}
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}
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