57 lines
2.5 KiB
C#
57 lines
2.5 KiB
C#
using UnityEngine;
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namespace SDFr
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{
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public class SDFPreview : AVolumePreview<SDFData>
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{
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private bool _disposing;
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private static readonly int _SDFVolumeLocalToWorld = Shader.PropertyToID("_SDFVolumeLocalToWorld");
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private static readonly int _SDFVolumeWorldToLocal = Shader.PropertyToID("_SDFVolumeWorldToLocal");
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private static readonly int _SDFVolumeFlip = Shader.PropertyToID("_SDFVolumeFlip");
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private static readonly int _BlitScaleBiasRt = Shader.PropertyToID("_BlitScaleBiasRt");
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private static readonly int _BlitScaleBias = Shader.PropertyToID("_BlitScaleBias");
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private static readonly int _SDFPreviewEpsilon = Shader.PropertyToID("_SDFPreviewEpsilon");
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private static readonly int _SDFPreviewNormalDelta = Shader.PropertyToID("_SDFPreviewNormalDelta");
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public Texture3D debugTex3D; //for viewing existing texture3D not baked with SDFr
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public SDFPreview(SDFData sdfData, Shader shader, Transform transform) : base(sdfData,shader,transform)
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{
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}
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public void Draw( Camera camera, bool flip, float epsilon, float normalDelta )
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{
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if (_disposing) return;
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if (camera == null) return;
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if (_data == null) return;
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if (_props == null) return;
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if (_cmd == null) return;
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if (_material == null) return;
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_data.SetMaterialProperties(_props);
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if (debugTex3D != null)
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{
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_props.SetTexture("_SDFVolumeTex",debugTex3D);
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}
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_props.SetMatrix(_SDFVolumeLocalToWorld, LocalToWorldNoScale);
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_props.SetMatrix(_SDFVolumeWorldToLocal, LocalToWorldNoScale.inverse);
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_props.SetFloat(_SDFVolumeFlip, flip ? -1f : 1f);
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_props.SetVector(_BlitScaleBiasRt,new Vector4(1f,1f,0f,0f));
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_props.SetVector(_BlitScaleBias, new Vector4(1f, 1f, 0f, 0f));
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_props.SetFloat(_SDFPreviewEpsilon,epsilon);
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_props.SetFloat(_SDFPreviewNormalDelta,normalDelta);
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AVolumeUtils.SetupRaymarchingMatrix(
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camera.fieldOfView,
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camera.worldToCameraMatrix,
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new Vector2(camera.pixelWidth, camera.pixelHeight));
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_cmd.Clear();
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_cmd.DrawProcedural(Matrix4x4.identity, _material, 0, MeshTopology.Quads, 4, 1, _props);
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Graphics.ExecuteCommandBuffer(_cmd);
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}
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}
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} |