72 lines
2.0 KiB
C#
72 lines
2.0 KiB
C#
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namespace UnityEngine.PostProcessing
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{
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public sealed class DitheringComponent : PostProcessingComponentRenderTexture<DitheringModel>
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{
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static class Uniforms
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{
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internal static readonly int _DitheringTex = Shader.PropertyToID("_DitheringTex");
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internal static readonly int _DitheringCoords = Shader.PropertyToID("_DitheringCoords");
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}
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public override bool active
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{
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get
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{
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return model.enabled
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&& !context.interrupted;
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}
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}
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// Holds 64 64x64 Alpha8 textures (256kb total)
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Texture2D[] noiseTextures;
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int textureIndex = 0;
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const int k_TextureCount = 64;
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public override void OnDisable()
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{
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noiseTextures = null;
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}
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void LoadNoiseTextures()
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{
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noiseTextures = new Texture2D[k_TextureCount];
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for (int i = 0; i < k_TextureCount; i++)
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noiseTextures[i] = Resources.Load<Texture2D>("Bluenoise64/LDR_LLL1_" + i);
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}
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public override void Prepare(Material uberMaterial)
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{
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float rndOffsetX;
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float rndOffsetY;
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#if POSTFX_DEBUG_STATIC_DITHERING
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textureIndex = 0;
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rndOffsetX = 0f;
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rndOffsetY = 0f;
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#else
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if (++textureIndex >= k_TextureCount)
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textureIndex = 0;
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rndOffsetX = Random.value;
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rndOffsetY = Random.value;
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#endif
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if (noiseTextures == null)
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LoadNoiseTextures();
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var noiseTex = noiseTextures[textureIndex];
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uberMaterial.EnableKeyword("DITHERING");
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uberMaterial.SetTexture(Uniforms._DitheringTex, noiseTex);
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uberMaterial.SetVector(Uniforms._DitheringCoords, new Vector4(
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(float)context.width / (float)noiseTex.width,
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(float)context.height / (float)noiseTex.height,
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rndOffsetX,
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rndOffsetY
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));
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}
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}
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}
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