Пример #1
0
        public bool Setup(ref RenderingData renderingData)
        {
            if (!renderingData.shadowData.supportsMainLightShadows)
            {
                return(false);
            }

            Clear();
            int shadowLightIndex = renderingData.lightData.mainLightIndex;

            if (shadowLightIndex == -1)
            {
                return(false);
            }

            VisibleLight shadowLight = renderingData.lightData.visibleLights[shadowLightIndex];
            Light        light       = shadowLight.light;

            if (light.shadows == LightShadows.None)
            {
                return(false);
            }

            if (shadowLight.lightType != LightType.Directional)
            {
                Debug.LogWarning("Only directional lights are supported as main light.");
            }

            Bounds bounds;

            if (!renderingData.cullResults.GetShadowCasterBounds(shadowLightIndex, out bounds))
            {
                return(false);
            }

            m_ShadowCasterCascadesCount = renderingData.shadowData.mainLightShadowCascadesCount;

            int shadowResolution = ShadowUtils.GetMaxTileResolutionInAtlas(renderingData.shadowData.mainLightShadowmapWidth,
                                                                           renderingData.shadowData.mainLightShadowmapHeight, m_ShadowCasterCascadesCount);

            m_ShadowmapWidth  = renderingData.shadowData.mainLightShadowmapWidth;
            m_ShadowmapHeight = (m_ShadowCasterCascadesCount == 2) ?
                                renderingData.shadowData.mainLightShadowmapHeight >> 1 :
                                renderingData.shadowData.mainLightShadowmapHeight;

            for (int cascadeIndex = 0; cascadeIndex < m_ShadowCasterCascadesCount; ++cascadeIndex)
            {
                bool success = ShadowUtils.ExtractDirectionalLightMatrix(ref renderingData.cullResults, ref renderingData.shadowData,
                                                                         shadowLightIndex, cascadeIndex, m_ShadowmapWidth, m_ShadowmapHeight, shadowResolution, light.shadowNearPlane,
                                                                         out m_CascadeSplitDistances[cascadeIndex], out m_CascadeSlices[cascadeIndex], out m_CascadeSlices[cascadeIndex].viewMatrix, out m_CascadeSlices[cascadeIndex].projectionMatrix);

                if (!success)
                {
                    return(false);
                }
            }

            return(true);
        }
        public bool Setup(ref RenderingData renderingData)
        {
            if (!renderingData.shadowData.supportsAdditionalLightShadows)
            {
                return(false);
            }

            Clear();

            m_ShadowmapWidth  = renderingData.shadowData.additionalLightsShadowmapWidth;
            m_ShadowmapHeight = renderingData.shadowData.additionalLightsShadowmapHeight;

            Bounds bounds;
            var    visibleLights         = renderingData.lightData.visibleLights;
            int    additionalLightsCount = renderingData.lightData.additionalLightsCount;

            for (int i = 0; i < visibleLights.Length && m_AdditionalShadowCastingLightIndices.Count < additionalLightsCount; ++i)
            {
                if (i == renderingData.lightData.mainLightIndex)
                {
                    continue;
                }

                VisibleLight shadowLight = visibleLights[i];
                Light        light       = shadowLight.light;

                if (shadowLight.lightType == LightType.Spot && light != null && light.shadows != LightShadows.None)
                {
                    if (renderingData.cullResults.GetShadowCasterBounds(i, out bounds))
                    {
                        m_AdditionalShadowCastingLightIndices.Add(i);
                    }
                }
            }

            int shadowCastingLightsCount = m_AdditionalShadowCastingLightIndices.Count;

            if (shadowCastingLightsCount == 0)
            {
                return(false);
            }

            // TODO: Add support to point light shadows. We make a simplification here that only works
            // for spot lights and with max spot shadows per pass.
            int atlasWidth      = renderingData.shadowData.additionalLightsShadowmapWidth;
            int atlasHeight     = renderingData.shadowData.additionalLightsShadowmapHeight;
            int sliceResolution = ShadowUtils.GetMaxTileResolutionInAtlas(atlasWidth, atlasHeight, shadowCastingLightsCount);

            bool anyShadows         = false;
            int  shadowSlicesPerRow = (atlasWidth / sliceResolution);

            for (int i = 0; i < shadowCastingLightsCount; ++i)
            {
                int          shadowLightIndex = m_AdditionalShadowCastingLightIndices[i];
                VisibleLight shadowLight      = visibleLights[shadowLightIndex];

                // Currently Only Spot Lights are supported in additional lights
                Debug.Assert(shadowLight.lightType == LightType.Spot);
                Matrix4x4 shadowTransform;
                bool      success = ShadowUtils.ExtractSpotLightMatrix(ref renderingData.cullResults, ref renderingData.shadowData,
                                                                       shadowLightIndex, out shadowTransform, out m_AdditionalLightSlices[i].viewMatrix, out m_AdditionalLightSlices[i].projectionMatrix);

                if (success)
                {
                    // TODO: We need to pass bias and scale list to shader to be able to support multiple
                    // shadow casting additional lights.
                    m_AdditionalLightSlices[i].offsetX         = (i % shadowSlicesPerRow) * sliceResolution;
                    m_AdditionalLightSlices[i].offsetY         = (i / shadowSlicesPerRow) * sliceResolution;
                    m_AdditionalLightSlices[i].resolution      = sliceResolution;
                    m_AdditionalLightSlices[i].shadowTransform = shadowTransform;

                    m_AdditionalLightsShadowStrength[i] = shadowLight.light.shadowStrength;
                    anyShadows = true;
                }
                else
                {
                    m_AdditionalShadowCastingLightIndices.RemoveAt(i--);
                }
            }

            return(anyShadows);
        }
Пример #3
0
        public bool Setup(ref RenderingData renderingData)
        {
            if (!renderingData.shadowData.supportsMainLightShadows)
            {
                return(false);
            }

            Clear();
            int shadowLightIndex = renderingData.lightData.mainLightIndex;

            if (shadowLightIndex == -1)
            {
                return(false);
            }

            VisibleLight shadowLight = renderingData.lightData.visibleLights[shadowLightIndex];
            Light        light       = shadowLight.light;

            if (light.shadows == LightShadows.None)
            {
                return(false);
            }

            if (shadowLight.lightType != LightType.Directional)
            {
                Debug.LogWarning("Only directional lights are supported as main light.");
            }

            Bounds bounds;

            if (!renderingData.cullResults.GetShadowCasterBounds(shadowLightIndex, out bounds))
            {
                return(false);
            }

            m_ShadowCasterCascadesCount = renderingData.shadowData.mainLightShadowCascadesCount;

            int shadowResolution = ShadowUtils.GetMaxTileResolutionInAtlas(renderingData.shadowData.mainLightShadowmapWidth,
                                                                           renderingData.shadowData.mainLightShadowmapHeight, m_ShadowCasterCascadesCount);

            m_ShadowmapWidth  = renderingData.shadowData.mainLightShadowmapWidth;
            m_ShadowmapHeight = (m_ShadowCasterCascadesCount == 2) ?
                                renderingData.shadowData.mainLightShadowmapHeight >> 1 :
                                renderingData.shadowData.mainLightShadowmapHeight;

            for (int cascadeIndex = 0; cascadeIndex < m_ShadowCasterCascadesCount; ++cascadeIndex)
            {
                bool success = ShadowUtils.ExtractDirectionalLightMatrix(ref renderingData.cullResults, ref renderingData.shadowData,
                                                                         shadowLightIndex, cascadeIndex, m_ShadowmapWidth, m_ShadowmapHeight, shadowResolution, light.shadowNearPlane,
                                                                         out m_CascadeSplitDistances[cascadeIndex], out m_CascadeSlices[cascadeIndex], out m_CascadeSlices[cascadeIndex].viewMatrix, out m_CascadeSlices[cascadeIndex].projectionMatrix);

                if (!success)
                {
                    return(false);
                }
            }

            //seongdae;vxsm
            if (renderingData.shadowData.supportsMainLightVxShadows)
            {
                var dirVxsm = light.GetComponent <DirectionalVxShadowMap>();

                bool enabledVxsm = dirVxsm != null && dirVxsm.IsValid();
                bool canNotCastDynamicShadows = enabledVxsm && dirVxsm.ShadowsBlend == ShadowsBlendMode.OnlyVxShadows;

                if (canNotCastDynamicShadows)
                {
                    return(false);
                }
            }
            //seongdae;vxsm

            return(true);
        }