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Edge direction visualization via shader #802

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merged 4 commits into from
Oct 24, 2024
Merged

Edge direction visualization via shader #802

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3aa6300
edge direction visualization via shader
tinxx Oct 17, 2024
410ef78
minor code improvements
tinxx Oct 21, 2024
da627b4
add missing summary tags
tinxx Oct 23, 2024
a94f990
Merge branch 'master' into edge-direction-visualization
falko17 Oct 24, 2024
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11 changes: 5 additions & 6 deletions Assets/SEE/Game/Operator/EdgeOperator.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,9 @@ public partial class EdgeOperator : GraphElementOperator<(Color start, Color end
/// </summary>
private SEESpline spline;

/// Shader property that enables or disables the edge direction (data flow) animation.
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private static readonly int EdgeFlowEnabledProperty = Shader.PropertyToID("_EdgeFlowEnabled");

#region Public API

/// <summary>
Expand Down Expand Up @@ -149,13 +152,9 @@ public IOperationCallback<Action> ShowOrHide(bool show, EdgeAnimationKind animat
/// <param name="enable">Enable or disable animation.</param>
public void AnimateDataFlow(bool enable = true)
{
if (gameObject.TryGetComponent<MeshRenderer>(out MeshRenderer meshRenderer))
{
meshRenderer.material.SetFloat("_EdgeFlowEnabled", enable ? 1.0f : 0.0f);
}
else
if (gameObject.TryGetComponentOrLog(out MeshRenderer meshRenderer))
{
Debug.LogWarning($"No MeshRenderer found to enable data flow animation on: {gameObject.FullName()}");
meshRenderer.material.SetFloat(EdgeFlowEnabledProperty, enable ? 1.0f : 0.0f);
}
}

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15 changes: 12 additions & 3 deletions Assets/SEE/GameObjects/SEESpline.cs
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Expand Up @@ -277,6 +277,15 @@ public Material MeshMaterial
}
}

/// Shader property that defines the (start) color.
private static readonly int ColorProperty = Shader.PropertyToID("_Color");

/// Shader property that defines the end color of the color gradient.
private static readonly int EndColorProperty = Shader.PropertyToID("_EndColor");

/// Shader property that enables or disables the color gradient.
private static readonly int ColorGradientEnabledProperty = Shader.PropertyToID("_ColorGradientEnabled");
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/// <summary>
/// Called by Unity when an instance of this class is being loaded.
/// </summary>
Expand Down Expand Up @@ -584,9 +593,9 @@ protected virtual void UpdateMaterial()
return;
}

meshRenderer.material.SetColor("_Color", gradientColors.start);
meshRenderer.material.SetColor("_EndColor", gradientColors.end);
meshRenderer.material.SetFloat("_ColorGradientEnabled", 1.0f);
meshRenderer.material.SetColor(ColorProperty, gradientColors.start);
meshRenderer.material.SetColor(EndColorProperty, gradientColors.end);
meshRenderer.material.SetFloat(ColorGradientEnabledProperty, 1.0f);
}

/// <summary>
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