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109 lines
3.9 KiB
109 lines
3.9 KiB
using System.Collections.Generic;
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using System.Linq;
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using LeTai.TrueShadow.PluginInterfaces;
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using UnityEngine;
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using UnityEngine.UI;
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namespace LeTai.TrueShadow
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{
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public partial class TrueShadow
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{
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ITrueShadowCasterMaterialProvider casterMaterialProvider;
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ITrueShadowCasterMaterialPropertiesModifier casterMaterialPropertiesModifier;
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ITrueShadowCasterMeshModifier casterMeshModifier;
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ITrueShadowCasterClearColorProvider casterClearColorProvider;
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ITrueShadowRendererMaterialProvider rendererMaterialProvider;
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ITrueShadowRendererMaterialModifier rendererMaterialModifier;
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ITrueShadowRendererMeshModifier rendererMeshModifier;
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public bool UsingRendererMaterialProvider => rendererMaterialProvider != null;
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void InitializePlugins()
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{
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casterMaterialProvider = GetComponent<ITrueShadowCasterMaterialProvider>();
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casterMaterialPropertiesModifier = GetComponent<ITrueShadowCasterMaterialPropertiesModifier>();
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casterMeshModifier = GetComponent<ITrueShadowCasterMeshModifier>();
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casterClearColorProvider = GetComponent<ITrueShadowCasterClearColorProvider>();
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if (casterClearColorProvider != null)
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ColorBleedMode = ColorBleedMode.Plugin;
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rendererMaterialProvider = GetComponent<ITrueShadowRendererMaterialProvider>();
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rendererMaterialModifier = GetComponent<ITrueShadowRendererMaterialModifier>();
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rendererMeshModifier = GetComponent<ITrueShadowRendererMeshModifier>();
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}
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public virtual Material GetShadowCastingMaterial()
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{
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return casterMaterialProvider != null
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? casterMaterialProvider.GetTrueShadowCasterMaterial()
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: Graphic.material;
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}
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public virtual void ModifyShadowCastingMaterialProperties(MaterialPropertyBlock propertyBlock)
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{
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casterMaterialPropertiesModifier?.ModifyTrueShadowCasterMaterialProperties(propertyBlock);
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}
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public virtual void ModifyShadowCastingMesh(Mesh mesh)
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{
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casterMeshModifier?.ModifyTrueShadowCasterMesh(mesh);
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// Caster can be semi-transparent, but cutout requires mostly opaque stencil.
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// Setting alpha to 1 in fragment can't work because of antialiasing.
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MakeOpaque(mesh);
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}
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readonly List<Color32> meshColors = new List<Color32>(4);
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List<Color32> meshColorsOpaque = new List<Color32>(4);
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void MakeOpaque(Mesh mesh)
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{
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if (shadowAsSibling)
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return;
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mesh.GetColors(meshColors);
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var meshColorCount = meshColors.Count;
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if (meshColorCount < 1) return;
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if (meshColorsOpaque.Count == meshColorCount)
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{
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// Assuming vertex colors are identical
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// TODO: This is the case for builtin graphics, but userscript may invalidate that.
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if (meshColors[0].a == meshColorsOpaque[0].a)
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return;
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}
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else
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{
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// TODO: This assumed vertex count change infrequently. Is not the case with Text
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meshColorsOpaque.Clear();
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meshColorsOpaque.AddRange(Enumerable.Repeat(new Color32(0, 0, 0, 0), meshColorCount));
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}
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for (var i = 0; i < meshColorCount; i++)
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{
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var c = meshColors[i];
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c.a = 255;
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meshColorsOpaque[i] = c;
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}
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mesh.SetColors(meshColorsOpaque);
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}
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public virtual Material GetShadowRenderingNormalMaterial()
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{
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return rendererMaterialProvider?.GetTrueShadowRendererMaterial();
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}
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public virtual void ModifyShadowRendererMaterial(Material baseMaterial)
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{
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rendererMaterialModifier?.ModifyTrueShadowRendererMaterial(baseMaterial);
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}
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public virtual void ModifyShadowRendererMesh(VertexHelper vertexHelper)
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{
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rendererMeshModifier?.ModifyTrueShadowRenderMesh(vertexHelper);
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}
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}
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}
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