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Commits
| Author | SHA1 | Date | |
|---|---|---|---|
 Redstone1024
|
ef00dc22b3 | ||
|
Redstone1024
|
2f409b3606 | ||
|
Redstone1024
|
a64346ee62 | ||
|
Redstone1024
|
8f4b9e2ae2 | ||
|
Redstone1024
|
6f6894c29c |
@@ -0,0 +1,24 @@
|
||||
#if defined(UNITY_PROCEDURAL_INSTANCING_ENABLED)
|
||||
StructuredBuffer<float3> _Positions;
|
||||
#endif
|
||||
|
||||
float _Step;
|
||||
|
||||
void ConfigureProcedural()
|
||||
{
|
||||
#if defined(UNITY_PROCEDURAL_INSTANCING_ENABLED)
|
||||
float3 position = _Positions[unity_InstanceID];
|
||||
|
||||
unity_ObjectToWorld = 0.0;
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unity_ObjectToWorld._m03_m13_m23_m33 = float4(position, 1.0);
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unity_ObjectToWorld._m00_m11_m22 = _Step;
|
||||
#endif
|
||||
}
|
||||
|
||||
void ShaderGraphFunction_float (float3 In, out float3 Out) {
|
||||
Out = In;
|
||||
}
|
||||
|
||||
void ShaderGraphFunction_half (half3 In, out half3 Out) {
|
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Out = In;
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}
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@@ -0,0 +1,35 @@
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Shader "Graph/Point Surface GPU"
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{
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Properties
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{
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_Smoothness("Smoothness", Range(0, 1)) = 0.5
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}
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SubShader
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{
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CGPROGRAM
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#pragma surface ConfigureSurface Standard fullforwardshadows addshadow
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#pragma instancing_options assumeuniformscaling procedural:ConfigureProcedural
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#pragma editor_sync_compilation
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#pragma target 4.5
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#include "Point GPU.hlsl"
|
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struct Input
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{
|
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float3 worldPos;
|
||||
};
|
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|
||||
float _Smoothness;
|
||||
|
||||
void ConfigureSurface(Input input, inout SurfaceOutputStandard surface)
|
||||
{
|
||||
surface.Albedo = saturate(input.worldPos * 0.5 + 0.5);
|
||||
surface.Smoothness = _Smoothness;
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}
|
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|
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ENDCG
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}
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FallBack "Diffuse"
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}
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#pragma kernel WaveToMultiWaveKernel
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#pragma kernel WaveToRippleKernel
|
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#pragma kernel WaveToSphereKernel
|
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#pragma kernel WaveToTorusKernel
|
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|
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#pragma kernel MultiWaveToWaveKernel
|
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#pragma kernel MultiWaveKernel
|
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#pragma kernel MultiWaveToRippleKernel
|
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#pragma kernel MultiWaveToSphereKernel
|
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#pragma kernel MultiWaveToTorusKernel
|
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|
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#pragma kernel RippleToWaveKernel
|
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#pragma kernel RippleToMultiWaveKernel
|
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#pragma kernel RippleKernel
|
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#pragma kernel RippleToSphereKernel
|
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#pragma kernel RippleToTorusKernel
|
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|
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#pragma kernel SphereToWaveKernel
|
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#pragma kernel SphereToMultiWaveKernel
|
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#pragma kernel SphereToRippleKernel
|
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#pragma kernel SphereKernel
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#pragma kernel SphereToTorusKernel
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#pragma kernel TorusToWaveKernel
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#pragma kernel TorusToMultiWaveKernel
|
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#pragma kernel TorusToRippleKernel
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#pragma kernel TorusToSphereKernel
|
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#pragma kernel TorusKernel
|
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RWStructuredBuffer<float3> _Positions;
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uint _Resolution;
|
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|
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float _Step;
|
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float _Time;
|
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float _TransitionProgress;
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|
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float2 GetUV(uint3 id)
|
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{
|
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return (id.xy + 0.5) * _Step - 1.0;
|
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}
|
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|
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void SetPositions(uint3 id, float3 positions)
|
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{
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if (id.x < _Resolution && id.y < _Resolution)
|
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{
|
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_Positions[id.x + id.y * _Resolution] = positions;
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}
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}
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|
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#define PI 3.14159265358979323846
|
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|
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float3 Wave(float u, float v, float t)
|
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{
|
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float3 p;
|
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p.x = u;
|
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p.y = sin(PI * (u + v + t));
|
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p.z = v;
|
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return p;
|
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}
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|
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float3 MultiWave(float u, float v, float t)
|
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{
|
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float3 p;
|
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p.x = u;
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p.y = sin(PI * (u + 0.5 * t));
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p.y += 0.5 * sin(2.0 * PI * (v + t));
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p.y += sin(PI * (u + v + 0.25 * t));
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p.y *= 1.0 / 2.5;
|
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p.z = v;
|
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return p;
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}
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|
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float3 Ripple(float u, float v, float t)
|
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{
|
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float d = sqrt(u * u + v * v);
|
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float3 p;
|
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p.x = u;
|
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p.y = sin(PI * (4.0 * d - t));
|
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p.y /= 1.0 + 10.0 * d;
|
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p.z = v;
|
||||
return p;
|
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}
|
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|
||||
float3 Sphere(float u, float v, float t)
|
||||
{
|
||||
float r = 0.9 + 0.1 * sin(PI * (6.0 * u + 4.0 * v + t));
|
||||
float s = r * cos(0.5 * PI * v);
|
||||
float3 p;
|
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p.x = s * sin(PI * u);
|
||||
p.y = r * sin(0.5 * PI * v);
|
||||
p.z = s * cos(PI * u);
|
||||
return p;
|
||||
}
|
||||
|
||||
float3 Torus(float u, float v, float t)
|
||||
{
|
||||
float r1 = 0.7 + 0.1 * sin(PI * (6.0 * u + 0.5 * t));
|
||||
float r2 = 0.15 + 0.05 * sin(PI * (8.0 * u + 4.0 * v + 2.0 * t));
|
||||
float s = r1 + r2 * cos(PI * v);
|
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float3 p;
|
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p.x = s * sin(PI * u);
|
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p.y = r2 * sin(PI * v);
|
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p.z = s * cos(PI * u);
|
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return p;
|
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}
|
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|
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#define KERNEL_FUNCTION(function) \
|
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[numthreads(8, 8, 1)] \
|
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void function##Kernel(uint3 id : SV_DISPATCHTHREADID) \
|
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{ \
|
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float2 uv = GetUV(id); \
|
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SetPositions(id, function(uv.x, uv.y, _Time)); \
|
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}
|
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|
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KERNEL_FUNCTION(Wave)
|
||||
KERNEL_FUNCTION(MultiWave)
|
||||
KERNEL_FUNCTION(Ripple)
|
||||
KERNEL_FUNCTION(Sphere)
|
||||
KERNEL_FUNCTION(Torus)
|
||||
|
||||
#define KERNEL_MOPH_FUNCTION(functionA, functionB) \
|
||||
[numthreads(8, 8, 1)] \
|
||||
void functionA##To##functionB##Kernel(uint3 id : SV_DISPATCHTHREADID) \
|
||||
{ \
|
||||
float2 uv = GetUV(id); \
|
||||
float3 position = lerp(functionA(uv.x, uv.y, _Time), functionB(uv.x, uv.y, _Time), _TransitionProgress); \
|
||||
SetPositions(id, position); \
|
||||
}
|
||||
|
||||
KERNEL_MOPH_FUNCTION(Wave, MultiWave)
|
||||
KERNEL_MOPH_FUNCTION(Wave, Ripple)
|
||||
KERNEL_MOPH_FUNCTION(Wave, Sphere)
|
||||
KERNEL_MOPH_FUNCTION(Wave, Torus)
|
||||
|
||||
KERNEL_MOPH_FUNCTION(MultiWave, Wave)
|
||||
KERNEL_MOPH_FUNCTION(MultiWave, Ripple)
|
||||
KERNEL_MOPH_FUNCTION(MultiWave, Sphere)
|
||||
KERNEL_MOPH_FUNCTION(MultiWave, Torus)
|
||||
|
||||
KERNEL_MOPH_FUNCTION(Ripple, Wave)
|
||||
KERNEL_MOPH_FUNCTION(Ripple, MultiWave)
|
||||
KERNEL_MOPH_FUNCTION(Ripple, Sphere)
|
||||
KERNEL_MOPH_FUNCTION(Ripple, Torus)
|
||||
|
||||
KERNEL_MOPH_FUNCTION(Sphere, Wave)
|
||||
KERNEL_MOPH_FUNCTION(Sphere, MultiWave)
|
||||
KERNEL_MOPH_FUNCTION(Sphere, Ripple)
|
||||
KERNEL_MOPH_FUNCTION(Sphere, Torus)
|
||||
|
||||
KERNEL_MOPH_FUNCTION(Torus, Wave)
|
||||
KERNEL_MOPH_FUNCTION(Torus, MultiWave)
|
||||
KERNEL_MOPH_FUNCTION(Torus, Ripple)
|
||||
KERNEL_MOPH_FUNCTION(Torus, Sphere)
|
||||
@@ -0,0 +1,8 @@
|
||||
fileFormatVersion: 2
|
||||
guid: c7f7fcb3b4a90614b80aa341489318e7
|
||||
ComputeShaderImporter:
|
||||
externalObjects: {}
|
||||
currentAPIMask: 4
|
||||
userData:
|
||||
assetBundleName:
|
||||
assetBundleVariant:
|
||||
@@ -9,6 +9,8 @@ public static class FunctionLibrary
|
||||
|
||||
private static Function[] functions = { Wave, MultiWave, Ripple, Sphere, Torus };
|
||||
|
||||
public static int functionCount => functions.Length;
|
||||
|
||||
public static Function GetFunction(FunctionName name)
|
||||
{
|
||||
return functions[(int)name];
|
||||
|
||||
@@ -0,0 +1,110 @@
|
||||
using UnityEngine;
|
||||
|
||||
public class GPUGraph : MonoBehaviour
|
||||
{
|
||||
[SerializeField]
|
||||
ComputeShader computeShader = default;
|
||||
|
||||
[SerializeField]
|
||||
Material material = default;
|
||||
|
||||
[SerializeField]
|
||||
Mesh mesh = default;
|
||||
|
||||
const int maxResolution = 1000;
|
||||
|
||||
[SerializeField, Range(10, maxResolution)]
|
||||
int resolution = 10;
|
||||
|
||||
[SerializeField]
|
||||
FunctionLibrary.FunctionName function = default;
|
||||
|
||||
public enum TransitionMode { Normal, Cycle, Random }
|
||||
|
||||
[SerializeField]
|
||||
TransitionMode transitionMode = TransitionMode.Normal;
|
||||
|
||||
[SerializeField, Min(0.0f)]
|
||||
float functionDuration = 1.0f;
|
||||
|
||||
[SerializeField, Min(0.0f)]
|
||||
float transitionDuration = 1.0f;
|
||||
|
||||
float duration = 0.0f;
|
||||
|
||||
bool transitioning;
|
||||
|
||||
FunctionLibrary.FunctionName transitionFunction;
|
||||
|
||||
ComputeBuffer positionsBuffer;
|
||||
|
||||
static readonly int positionsId = Shader.PropertyToID("_Positions");
|
||||
static readonly int resolutionId = Shader.PropertyToID("_Resolution");
|
||||
static readonly int stepId = Shader.PropertyToID("_Step");
|
||||
static readonly int timeId = Shader.PropertyToID("_Time");
|
||||
static readonly int transitionProgressId = Shader.PropertyToID("_TransitionProgress");
|
||||
|
||||
private void OnEnable()
|
||||
{
|
||||
positionsBuffer = new ComputeBuffer(maxResolution * maxResolution, 3 * 4);
|
||||
}
|
||||
|
||||
private void OnDisable()
|
||||
{
|
||||
positionsBuffer.Release();
|
||||
positionsBuffer = null;
|
||||
}
|
||||
|
||||
private void Update()
|
||||
{
|
||||
duration += Time.deltaTime;
|
||||
if (transitioning)
|
||||
{
|
||||
if (duration >= transitionDuration)
|
||||
{
|
||||
duration -= transitionDuration;
|
||||
transitioning = false;
|
||||
}
|
||||
}
|
||||
else if (duration >= functionDuration)
|
||||
{
|
||||
duration -= functionDuration;
|
||||
transitioning = true;
|
||||
transitionFunction = function;
|
||||
PickNextFunction();
|
||||
}
|
||||
UpdateFunctionOnGPU();
|
||||
}
|
||||
|
||||
private void PickNextFunction()
|
||||
{
|
||||
if (transitionMode == TransitionMode.Normal) return;
|
||||
function = transitionMode == TransitionMode.Cycle ?
|
||||
FunctionLibrary.GetNextFunctionName(function) :
|
||||
FunctionLibrary.GetRandomFunctionNameOtherThan(function);
|
||||
}
|
||||
|
||||
private void UpdateFunctionOnGPU()
|
||||
{
|
||||
var step = 2f / resolution;
|
||||
computeShader.SetInt(resolutionId, resolution);
|
||||
computeShader.SetFloat(stepId, step);
|
||||
computeShader.SetFloat(timeId, Time.time);
|
||||
if (transitioning)
|
||||
{
|
||||
computeShader.SetFloat(transitionProgressId, Mathf.SmoothStep(0f, 1f, duration / transitionDuration));
|
||||
}
|
||||
|
||||
var kernelIndex = (int)function +
|
||||
(int)(transitioning ? transitionFunction : function) * FunctionLibrary.functionCount;
|
||||
computeShader.SetBuffer(kernelIndex, positionsId, positionsBuffer);
|
||||
|
||||
var groups = Mathf.CeilToInt(resolution / 8f);
|
||||
computeShader.Dispatch(kernelIndex, groups, groups, 1);
|
||||
|
||||
material.SetBuffer(positionsId, positionsBuffer);
|
||||
material.SetFloat(stepId, step);
|
||||
var bounds = new Bounds(Vector3.zero, Vector3.one * (2f + 2f / resolution));
|
||||
Graphics.DrawMeshInstancedProcedural(mesh, 0, material, bounds, resolution * resolution);
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,11 @@
|
||||
fileFormatVersion: 2
|
||||
guid: 4e99d61420a0d1f459f961121d6fbe77
|
||||
MonoImporter:
|
||||
externalObjects: {}
|
||||
serializedVersion: 2
|
||||
defaultReferences: []
|
||||
executionOrder: 0
|
||||
icon: {instanceID: 0}
|
||||
userData:
|
||||
assetBundleName:
|
||||
assetBundleVariant:
|
||||
@@ -5,7 +5,7 @@ public class Graph : MonoBehaviour
|
||||
[SerializeField]
|
||||
Transform pointPrefab = default;
|
||||
|
||||
[SerializeField, Range(10, 100)]
|
||||
[SerializeField, Range(10, 200)]
|
||||
int resolution = 10;
|
||||
|
||||
[SerializeField]
|
||||
|
||||
Reference in New Issue
Block a user