Ejemplo n.º 1
0
        private void CalculateOcclusion(int layers, Vector4 worldEye, Vector4 worldTgt, ref float occlusion)
        {
            if (SgtOcclusion.IsValid(occlusion, layers, gameObject) == true && OuterRadius > 0.0f && outerDepthTex != null)
            {
                var eye = cachedTransform.InverseTransformPoint(worldEye) / OuterRadius;
                var tgt = cachedTransform.InverseTransformPoint(worldTgt) / OuterRadius;

                var dir    = Vector3.Normalize(tgt - eye);
                var len    = Vector3.Magnitude(tgt - eye);
                var length = default(float);

                if (GetLength(eye, dir, len, ref length) == true)
                {
                    var localPosition  = cachedTransform.InverseTransformPoint(worldEye);
                    var localDistance  = localPosition.magnitude;
                    var innerThickness = default(float);
                    var outerThickness = default(float);
                    var innerRatio     = SgtHelper.Divide(innerMeshRadius, OuterRadius);
                    var middleRatio    = Mathf.Lerp(innerRatio, 1.0f, middle);
                    var distance       = SgtHelper.Divide(localDistance, OuterRadius);
                    var outerDensity   = 1.0f - outerFog;

                    SgtHelper.CalculateHorizonThickness(innerRatio, middleRatio, distance, out innerThickness, out outerThickness);

                    length *= SgtHelper.Reciprocal(outerThickness * outerDensity);

                    var depth = outerDepthTex.GetPixelBilinear(length, length).a;

                    depth = Mathf.Clamp01(depth + (1.0f - depth) * GetSky(worldEye, localDistance));

                    occlusion += (1.0f - occlusion) * depth;
                }
            }
        }
Ejemplo n.º 2
0
        private void CameraPreRender(Camera camera)
        {
            if (model != null)
            {
                model.Restore(camera);
            }

            // Write camera-dependant shader values
            if (innerMaterial != null && outerMaterial != null)
            {
                var localPosition  = cachedTransform.InverseTransformPoint(camera.transform.position);
                var localDistance  = localPosition.magnitude;
                var height01       = Mathf.InverseLerp(OuterRadius, InnerMeshRadius, localDistance);
                var innerThickness = default(float);
                var outerThickness = default(float);
                var innerRatio     = SgtHelper.Divide(InnerMeshRadius, OuterRadius);
                var middleRatio    = Mathf.Lerp(innerRatio, 1.0f, Middle);
                var distance       = SgtHelper.Divide(localDistance, OuterRadius);
                var innerDensity   = 1.0f - InnerFog;
                var outerDensity   = 1.0f - OuterFog;

                SgtHelper.CalculateHorizonThickness(innerRatio, middleRatio, distance, out innerThickness, out outerThickness);

                innerMaterial.SetFloat(SgtShader._HorizonLengthRecip, SgtHelper.Reciprocal(innerThickness * innerDensity));
                outerMaterial.SetFloat(SgtShader._HorizonLengthRecip, SgtHelper.Reciprocal(outerThickness * outerDensity));

                if (OuterDepthTex != null)
                {
#if UNITY_EDITOR
                    SgtHelper.MakeTextureReadable(OuterDepthTex);
#endif
                    outerMaterial.SetFloat(SgtShader._Sky, GetSky(camera) * OuterDepthTex.GetPixelBilinear(height01 / outerDensity, 0.0f).a);
                }

                var scale        = SgtHelper.Divide(OuterMeshRadius, OuterRadius);
                var worldToLocal = Matrix4x4.Scale(new Vector3(scale, scale, scale)) * cachedTransform.worldToLocalMatrix;                 // cachedTransform might not be set here, so use the property

                innerMaterial.SetMatrix(SgtShader._WorldToLocal, worldToLocal);
                outerMaterial.SetMatrix(SgtShader._WorldToLocal, worldToLocal);

                // Write lights and shadows
                SgtHelper.SetTempMaterial(innerMaterial, outerMaterial);

                var mask   = 1 << gameObject.layer;
                var lights = SgtLight.Find(Lit, mask);

                SgtShadow.Find(Lit, mask, lights);
                SgtShadow.FilterOutSphere(transform.position);
                SgtShadow.Write(Lit, 2);

                SgtLight.FilterOut(transform.position);
                SgtLight.Write(Lit, transform.position, cachedTransform, null, ScatteringStrength, 2);
            }
        }
Ejemplo n.º 3
0
        private void HandleCameraDraw(Camera camera)
        {
            if (SgtHelper.CanDraw(gameObject, camera) == false)
            {
                return;
            }

            // Write camera-dependent shader values
            if (innerMaterial != null && outerMaterial != null)
            {
                var localPosition  = CachedTransform.InverseTransformPoint(camera.transform.position);
                var localDistance  = localPosition.magnitude;
                var innerThickness = default(float);
                var outerThickness = default(float);
                var innerRatio     = SgtHelper.Divide(innerMeshRadius, OuterRadius);
                var middleRatio    = Mathf.Lerp(innerRatio, 1.0f, middle);
                var distance       = SgtHelper.Divide(localDistance, OuterRadius);
                var innerDensity   = 1.0f - innerFog;
                var outerDensity   = 1.0f - outerFog;

                SgtHelper.CalculateHorizonThickness(innerRatio, middleRatio, distance, out innerThickness, out outerThickness);

                innerMaterial.SetFloat(SgtShader._HorizonLengthRecip, SgtHelper.Reciprocal(innerThickness * innerDensity));
                outerMaterial.SetFloat(SgtShader._HorizonLengthRecip, SgtHelper.Reciprocal(outerThickness * outerDensity));

                if (outerDepthTex != null)
                {
#if UNITY_EDITOR
                    SgtHelper.MakeTextureReadable(outerDepthTex);
#endif
                    outerMaterial.SetFloat(SgtShader._Sky, GetSky(localDistance));
                }

                UpdateMaterialNonSerialized();
            }

            var scale  = SgtHelper.Divide(OuterRadius, outerMeshRadius);
            var matrix = CachedTransform.localToWorldMatrix * Matrix4x4.Scale(Vector3.one * scale);

            if (cameraOffset != 0.0f)
            {
                var direction = Vector3.Normalize(camera.transform.position - cachedTransform.position);

                matrix = Matrix4x4.Translate(direction * cameraOffset) * matrix;
            }

            Graphics.DrawMesh(outerMesh, matrix, outerMaterial, gameObject.layer, camera);
        }
Ejemplo n.º 4
0
        private void CameraPreRender(Camera camera)
        {
            if (model != null)
            {
                model.Restore(camera);
            }

            // Write camera-dependant shader values
            if (innerMaterial != null && outerMaterial != null)
            {
                var localPosition  = cachedTransform.InverseTransformPoint(camera.transform.position);
                var localDistance  = localPosition.magnitude;
                var height01       = Mathf.InverseLerp(OuterRadius, InnerMeshRadius, localDistance);
                var innerThickness = default(float);
                var outerThickness = default(float);
                var innerRatio     = SgtHelper.Divide(InnerMeshRadius, OuterRadius);
                var middleRatio    = Mathf.Lerp(innerRatio, 1.0f, Middle);
                var distance       = SgtHelper.Divide(localDistance, OuterRadius);
                var innerDensity   = 1.0f - InnerFog;
                var outerDensity   = 1.0f - OuterFog;

                SgtHelper.CalculateHorizonThickness(innerRatio, middleRatio, distance, out innerThickness, out outerThickness);

                innerMaterial.SetFloat(SgtShader._HorizonLengthRecip, SgtHelper.Reciprocal(innerThickness * innerDensity));
                outerMaterial.SetFloat(SgtShader._HorizonLengthRecip, SgtHelper.Reciprocal(outerThickness * outerDensity));

                if (OuterDepthTex != null)
                {
#if UNITY_EDITOR
                    SgtHelper.MakeTextureReadable(OuterDepthTex);
#endif
                    outerMaterial.SetFloat(SgtShader._Sky, Sky * OuterDepthTex.GetPixelBilinear(height01 / outerDensity, 0.0f).a);
                }

                UpdateMaterialNonSerialized();
            }
        }