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colors are inverted on the result texture

This commit is contained in:
Stedd 2023-10-08 00:56:53 +02:00
parent 9782c69826
commit 27339bdda4
3 changed files with 14 additions and 14 deletions
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2
Assets/Scenes/SampleScene.unity
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@ -367,7 +367,7 @@ MonoBehaviour:
m_Name: m_Name:
m_EditorClassIdentifier: m_EditorClassIdentifier:
_computeShader: {fileID: 7200000, guid: 3df3413c2fff3cc41a2eb5505b4c260c, type: 3} _computeShader: {fileID: 7200000, guid: 3df3413c2fff3cc41a2eb5505b4c260c, type: 3}
_inputTexture: {fileID: 10305, guid: 0000000000000000f000000000000000, type: 0} _inputTexture: {fileID: 10309, guid: 0000000000000000f000000000000000, type: 0}
_resultTexture: {fileID: 0} _resultTexture: {fileID: 0}
--- !u!1 &963194225 --- !u!1 &963194225
GameObject: GameObject:

13
Assets/Scripts/ComputeController.cs
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@ -1,10 +1,12 @@
using UnityEngine; using UnityEngine;
using UnityEngine.Serialization;
public class ComputeController : MonoBehaviour public class ComputeController : MonoBehaviour
{ {
[SerializeField] private ComputeShader _computeShader; [SerializeField] private ComputeShader _computeShader;
[SerializeField] private Texture2D _inputTexture; [SerializeField] private Texture2D _inputTexture;
[SerializeField] private RenderTexture _resultTexture; [SerializeField] private RenderTexture _resultTexture;
private int _kernelHandle; private int _kernelHandle;
private static readonly int Result = Shader.PropertyToID("result"); private static readonly int Result = Shader.PropertyToID("result");
private static readonly int SourceTexture = Shader.PropertyToID("source_texture"); private static readonly int SourceTexture = Shader.PropertyToID("source_texture");
@ -13,11 +15,9 @@ public class ComputeController : MonoBehaviour
{ {
_kernelHandle = _computeShader.FindKernel("cs_main"); _kernelHandle = _computeShader.FindKernel("cs_main");
_resultTexture = new(100, 100, 24) _resultTexture = new(512, 512, 24);
{ _resultTexture.name = "ResultTexture";
enableRandomWrite = true, _resultTexture.enableRandomWrite = true;
name = "Test"
};
_resultTexture.Create(); _resultTexture.Create();
_computeShader.SetTexture(_kernelHandle, Result, _resultTexture); _computeShader.SetTexture(_kernelHandle, Result, _resultTexture);
@ -28,6 +28,7 @@ public class ComputeController : MonoBehaviour
private void OnGUI() private void OnGUI()
{ {
GUI.DrawTexture(new(0, 0, _resultTexture.width, _resultTexture.height), _resultTexture); GUI.DrawTexture(new Rect(0, 0, _resultTexture.width, _resultTexture.height), _resultTexture);
GUI.DrawTexture(new Rect(0, 0, _inputTexture.width, _inputTexture.height), _inputTexture);
} }
} }

9
Assets/Shaders/ColorInverter.compute
View File

@ -1,8 +1,6 @@
// Each #kernel tells which function to compile; you can have many kernels
#pragma kernel cs_main #pragma kernel cs_main
// Create a RenderTexture with enableRandomWrite flag and set it // The output texture
// with cs.SetTexture
RWTexture2D<float4> result; RWTexture2D<float4> result;
// Input texture // Input texture
@ -11,7 +9,8 @@ Texture2D<float4> source_texture;
[numthreads(8, 8, 1)] [numthreads(8, 8, 1)]
void cs_main(uint3 id : SV_DispatchThreadID) void cs_main(uint3 id : SV_DispatchThreadID)
{ {
float4 color = result[id.xy]; float4 color = source_texture[id.xy];
color.rgb = 1 - color.rgb; // invert the color color.rgb = 1 - color.rgb;
//color.rgb = float4(0, 1, 1, 0);
result[id.xy] = color; result[id.xy] = color;
} }