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46 行
1.8 KiB

using System;
using System.Collections.Generic;
using UnityEngine.Rendering;
namespace UnityEngine.Experimental.Rendering
{
public class TexturePadding
{
static readonly int _RectOffset = Shader.PropertyToID("_RectOffset");
static readonly int _InOutTexture = Shader.PropertyToID("_InOutTexture");
ComputeShader m_CS;
int m_KMainTopRight;
int m_KMainTop;
int m_KMainRight;
public TexturePadding(ComputeShader cs)
{
m_CS = cs;
m_KMainTopRight = m_CS.FindKernel("KMainTopRight");
m_KMainTop = m_CS.FindKernel("KMainTop");
m_KMainRight = m_CS.FindKernel("KMainRight");
}
public void Pad(CommandBuffer cmd, RenderTexture inOutTexture, RectInt from, RectInt to)
{
if (from.width < to.width)
{
cmd.SetComputeIntParams(m_CS, _RectOffset, from.width, 0);
cmd.SetComputeTextureParam(m_CS, m_KMainRight, _InOutTexture, inOutTexture);
cmd.DispatchCompute(m_CS, m_KMainRight, to.width - from.width, from.height, 1);
}
if (from.height < to.height)
{
cmd.SetComputeIntParams(m_CS, _RectOffset, 0, from.height);
cmd.SetComputeTextureParam(m_CS, m_KMainTop, _InOutTexture, inOutTexture);
cmd.DispatchCompute(m_CS, m_KMainTop, from.width, to.height - from.height, 1);
}
if (from.width < to.width && from.height < to.height)
{
cmd.SetComputeIntParams(m_CS, _RectOffset, from.width, from.height);
cmd.SetComputeTextureParam(m_CS, m_KMainTopRight, _InOutTexture, inOutTexture);
cmd.DispatchCompute(m_CS, m_KMainTopRight, to.width - from.width, to.height - from.height, 1);
}
}
}
}