71 lines
3.2 KiB
C#
71 lines
3.2 KiB
C#
using UnityEngine;
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namespace Obi
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{
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public class ComputeStitchConstraintsBatch : ComputeConstraintsBatchImpl, IStitchConstraintsBatchImpl
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{
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GraphicsBuffer stiffnesses;
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public ComputeStitchConstraintsBatch(ComputeStitchConstraints constraints)
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{
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m_Constraints = constraints;
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m_ConstraintType = Oni.ConstraintType.Stitch;
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}
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public void SetStitchConstraints(ObiNativeIntList particleIndices, ObiNativeFloatList stiffnesses, ObiNativeFloatList lambdas, int count)
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{
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this.particleIndices = particleIndices.AsComputeBuffer<int>();
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this.stiffnesses = stiffnesses.AsComputeBuffer<float>();
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this.lambdas = lambdas.AsComputeBuffer<float>();
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m_ConstraintCount = count;
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}
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public override void Evaluate(float stepTime, float substepTime, int steps, float timeLeft)
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{
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if (m_ConstraintCount > 0)
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{
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var shader = ((ComputeStitchConstraints)m_Constraints).constraintsShader;
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int projectKernel = ((ComputeStitchConstraints)m_Constraints).projectKernel;
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shader.SetBuffer(projectKernel, "particleIndices", particleIndices);
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shader.SetBuffer(projectKernel, "stiffnesses", stiffnesses);
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shader.SetBuffer(projectKernel, "lambdas", lambdas);
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shader.SetBuffer(projectKernel, "positions", solverImplementation.positionsBuffer);
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shader.SetBuffer(projectKernel, "invMasses", solverImplementation.invMassesBuffer);
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shader.SetBuffer(projectKernel, "deltasAsInt", solverImplementation.positionDeltasIntBuffer);
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shader.SetBuffer(projectKernel, "positionConstraintCounts", solverImplementation.positionConstraintCountBuffer);
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shader.SetInt("activeConstraintCount", m_ConstraintCount);
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shader.SetFloat("deltaTime", substepTime);
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int threadGroups = ComputeMath.ThreadGroupCount(m_ConstraintCount, 128);
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shader.Dispatch(projectKernel, threadGroups, 1, 1);
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}
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}
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public override void Apply(float substepTime)
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{
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if (m_ConstraintCount > 0)
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{
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var parameters = solverAbstraction.GetConstraintParameters(m_ConstraintType);
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var shader = ((ComputeStitchConstraints)m_Constraints).constraintsShader;
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int applyKernel = ((ComputeStitchConstraints)m_Constraints).applyKernel;
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shader.SetBuffer(applyKernel, "particleIndices", particleIndices);
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shader.SetBuffer(applyKernel, "positions", solverImplementation.positionsBuffer);
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shader.SetBuffer(applyKernel, "deltasAsInt", solverImplementation.positionDeltasIntBuffer);
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shader.SetBuffer(applyKernel, "positionConstraintCounts", solverImplementation.positionConstraintCountBuffer);
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shader.SetInt("activeConstraintCount", m_ConstraintCount);
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shader.SetFloat("sorFactor", parameters.SORFactor);
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int threadGroups = ComputeMath.ThreadGroupCount(m_ConstraintCount, 128);
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shader.Dispatch(applyKernel, threadGroups, 1, 1);
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}
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}
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}
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} |