using UnityEngine;
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namespace DynamicShadowProjector {
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[RequireComponent(typeof(ShadowTextureRenderer))]
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public class MipmappedShadowFallback : MonoBehaviour {
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public Object m_fallbackShaderOrMaterial;
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public int m_blurLevel = 1;
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public float m_blurSize = 2.0f;
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public bool m_modifyTextureSize = false;
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public ShadowTextureRenderer.TextureMultiSample m_multiSampling = ShadowTextureRenderer.TextureMultiSample.x4;
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public ShadowTextureRenderer.TextureSuperSample m_superSampling = ShadowTextureRenderer.TextureSuperSample.x1;
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public int m_textureWidth = 64;
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public int m_textureHeight = 64;
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public Shader m_tex2DlodCheckShader;
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public Shader m_glslCheckShader;
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void Awake()
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{
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Projector projector = GetComponent<Projector>();
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if (projector == null || projector.material == null) {
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return;
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}
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bool bSupported = projector.material.shader.isSupported;
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// shader.isSupport returns true even on devices which don't support tex2Dlod,
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// because Unity shader compiler replaces tex2Dlod with tex2Dbias for those devices.
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// That's why additional check is needed here.
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if (bSupported && m_tex2DlodCheckShader != null && m_glslCheckShader != null && m_glslCheckShader.isSupported) {
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bSupported = m_tex2DlodCheckShader.isSupported;
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}
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if (!bSupported) {
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if (Debug.isDebugBuild) {
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Debug.Log("This device does not support tex2Dlod. Use fallback shader instead: " + SystemInfo.graphicsDeviceID);
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}
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ApplyFallback(projector);
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}
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}
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public void ApplyFallback(Projector projector)
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{
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if (m_fallbackShaderOrMaterial is Shader) {
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projector.material.shader = m_fallbackShaderOrMaterial as Shader;
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}
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else if (m_fallbackShaderOrMaterial is Material) {
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projector.material = m_fallbackShaderOrMaterial as Material;
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}
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ShadowTextureRenderer shadowRenderer = projector.GetComponent<ShadowTextureRenderer>();
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shadowRenderer.blurLevel = m_blurLevel;
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shadowRenderer.blurSize = m_blurSize;
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shadowRenderer.mipLevel = 0;
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if (m_modifyTextureSize) {
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shadowRenderer.textureWidth = m_textureWidth;
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shadowRenderer.textureHeight = m_textureHeight;
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shadowRenderer.multiSampling = m_multiSampling;
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shadowRenderer.superSampling = m_superSampling;
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}
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}
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}
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}
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