同步最新svn内容

leonard Wu

2018-08-09 a10eea6e4ce647061813519d5b0ea496f29495b9

 Assets/Plugins/PostProcessing/Runtime/Components/GrainComponent.cs

@@ -1,79 +1,79 @@
namespace UnityEngine.PostProcessing
{
    public sealed class GrainComponent : PostProcessingComponentRenderTexture<GrainModel>
    {
        static class Uniforms
        {
            internal static readonly int _Grain_Params1 = Shader.PropertyToID("_Grain_Params1");
            internal static readonly int _Grain_Params2 = Shader.PropertyToID("_Grain_Params2");
            internal static readonly int _GrainTex      = Shader.PropertyToID("_GrainTex");
            internal static readonly int _Phase         = Shader.PropertyToID("_Phase");
        }

        public override bool active
        {
            get
            {
                return model != null && model.enabled
                       && model.settings.intensity > 0f
                       && SystemInfo.SupportsRenderTextureFormat(RenderTextureFormat.ARGBHalf)
                       && !context.interrupted;
            }
        }

        RenderTexture m_GrainLookupRT;

        public override void OnDisable()
        {
            GraphicsUtils.Destroy(m_GrainLookupRT);
            m_GrainLookupRT = null;
        }

        public override void Prepare(Material uberMaterial)
        {
            var settings = model.settings;

            uberMaterial.EnableKeyword("GRAIN");

            float rndOffsetX;
            float rndOffsetY;

#if POSTFX_DEBUG_STATIC_GRAIN
            // Chosen by a fair dice roll
            float time = 4f;
            rndOffsetX = 0f;
            rndOffsetY = 0f;
#else
            float time = Time.realtimeSinceStartup;
            rndOffsetX = Random.value;
            rndOffsetY = Random.value;
#endif

            // Generate the grain lut for the current frame first
            if (m_GrainLookupRT == null || !m_GrainLookupRT.IsCreated())
            {
                GraphicsUtils.Destroy(m_GrainLookupRT);

                m_GrainLookupRT = new RenderTexture(192, 192, 0, RenderTextureFormat.ARGBHalf)
                {
                    filterMode = FilterMode.Bilinear,
                    wrapMode = TextureWrapMode.Repeat,
                    anisoLevel = 0,
                    name = "Grain Lookup Texture"
                };

                m_GrainLookupRT.Create();
            }

            var grainMaterial = context.materialFactory.Get("Hidden/Post FX/Grain Generator");
            grainMaterial.SetFloat(Uniforms._Phase, time / 20f);

            Graphics.Blit((Texture)null, m_GrainLookupRT, grainMaterial, settings.colored ? 1 : 0);

            // Send everything to the uber shader
            uberMaterial.SetTexture(Uniforms._GrainTex, m_GrainLookupRT);
            uberMaterial.SetVector(Uniforms._Grain_Params1, new Vector2(settings.luminanceContribution, settings.intensity * 20f));
            uberMaterial.SetVector(Uniforms._Grain_Params2, new Vector4((float)context.width / (float)m_GrainLookupRT.width / settings.size, (float)context.height / (float)m_GrainLookupRT.height / settings.size, rndOffsetX, rndOffsetY));
        }
    }
}
namespace UnityEngine.PostProcessing

{

    public sealed class GrainComponent : PostProcessingComponentRenderTexture<GrainModel>

    {

        static class Uniforms

        {

            internal static readonly int _Grain_Params1 = Shader.PropertyToID("_Grain_Params1");

            internal static readonly int _Grain_Params2 = Shader.PropertyToID("_Grain_Params2");

            internal static readonly int _GrainTex      = Shader.PropertyToID("_GrainTex");

            internal static readonly int _Phase         = Shader.PropertyToID("_Phase");

        }



        public override bool active

        {

            get

            {

                return model != null && model.enabled

                       && model.settings.intensity > 0f

                       && SystemInfo.SupportsRenderTextureFormat(RenderTextureFormat.ARGBHalf)

                       && !context.interrupted;

            }

        }



        RenderTexture m_GrainLookupRT;



        public override void OnDisable()

        {

            GraphicsUtils.Destroy(m_GrainLookupRT);

            m_GrainLookupRT = null;

        }



        public override void Prepare(Material uberMaterial)

        {

            var settings = model.settings;



            uberMaterial.EnableKeyword("GRAIN");



            float rndOffsetX;

            float rndOffsetY;



#if POSTFX_DEBUG_STATIC_GRAIN

            // Chosen by a fair dice roll

            float time = 4f;

            rndOffsetX = 0f;

            rndOffsetY = 0f;

#else

            float time = Time.realtimeSinceStartup;

            rndOffsetX = Random.value;

            rndOffsetY = Random.value;

#endif



            // Generate the grain lut for the current frame first

            if (m_GrainLookupRT == null || !m_GrainLookupRT.IsCreated())

            {

                GraphicsUtils.Destroy(m_GrainLookupRT);



                m_GrainLookupRT = new RenderTexture(192, 192, 0, RenderTextureFormat.ARGBHalf)

                {

                    filterMode = FilterMode.Bilinear,

                    wrapMode = TextureWrapMode.Repeat,

                    anisoLevel = 0,

                    name = "Grain Lookup Texture"

                };



                m_GrainLookupRT.Create();

            }



            var grainMaterial = context.materialFactory.Get("Hidden/Post FX/Grain Generator");

            grainMaterial.SetFloat(Uniforms._Phase, time / 20f);



            Graphics.Blit((Texture)null, m_GrainLookupRT, grainMaterial, settings.colored ? 1 : 0);



            // Send everything to the uber shader

            uberMaterial.SetTexture(Uniforms._GrainTex, m_GrainLookupRT);

            uberMaterial.SetVector(Uniforms._Grain_Params1, new Vector2(settings.luminanceContribution, settings.intensity * 20f));

            uberMaterial.SetVector(Uniforms._Grain_Params2, new Vector4((float)context.width / (float)m_GrainLookupRT.width / settings.size, (float)context.height / (float)m_GrainLookupRT.height / settings.size, rndOffsetX, rndOffsetY));

        }

    }

}