Ejemplo n.º 1
0
    private void TranslucentRender()
    {
        GraphicsDeviceContext device = GraphicsDeviceContext.Instance;

        device.SetBlendState(Addition);
        device.SetRasterizerState(CullingOff);
        device.SetDepthStencilState(ZTestOnWriteOff);
        device.SetVertexLayout(VertexLayout);
        device.SetPrimitiveTopology(PrimitiveTopology.TriangleStrip);
        device.SetVertexShader(VertexShader);
        device.SetPixelShader(PixelShader);

        device.SetVertexBuffer(VertexPositions, 0);
        device.SetVertexBuffer(VertexTextureCoords, 1);

        PixelShader.SetTexture(Texture, 0);

        InstanceWVPs.Lock(Accessibility.DynamicWriteOnly);
        InstanceAlphas.Lock(Accessibility.DynamicWriteOnly);
        for (int i = 0; i < InstanceCount; i++)
        {
            var instance = Instances[i];
            InstanceWVPs.Write(i, instance.Matrix * ViewingMatrix * ProjectionMatrix);

            float alpha = 0.15f * instance.Time;
            InstanceAlphas.Write(i, alpha);
        }
        InstanceAlphas.Unlock();
        InstanceWVPs.Unlock();

        device.SetInstanceBuffer(InstanceAlphas, 2);
        device.SetInstanceBuffer(InstanceWVPs, 3);

        device.DrawInstanced(4, InstanceCount);
    }
Ejemplo n.º 2
0
    private void TranslucentRender()
    {
        GraphicsDeviceContext device = GraphicsDeviceContext.Instance;

        device.SetBlendState(AlphaBlend);
        device.SetRasterizerState(CullingOff);
        device.SetDepthStencilState(ZTestOnWriteOff);
        device.SetVertexLayout(VertexLayout);
        device.SetPrimitiveTopology(PrimitiveTopology.TriangleStrip);
        device.SetVertexShader(VertexShader);
        device.SetPixelShader(PixelShader);

        device.SetVertexBuffer(VertexPositions, 0);
        device.SetVertexBuffer(VertexTextureCoords, 1);

        PixelShader.SetSamplerState(Wrap, 0);
        PixelShader.SetTexture(Texture, 0);

        InstanceAlphas.Lock(Accessibility.DynamicWriteOnly);
        InstanceWVPs.Lock(Accessibility.DynamicWriteOnly);

        int k = 0;

        foreach (var instance in Instances)
        {
            Vector3 position = instance.Position;
            float   x        = instance.Time;
            float   scale    = clamp(-3 * sin(x) * log(x), 0, 1) * 15 + 10;
            float   alpha    = clamp(sin(square(1.2f - x)), 0, 1) * 0.5f;

            var world = new Matrix4x3().Identity();
            world.Translate(position * ViewingMatrix);
            world.Scale(scale);

            InstanceWVPs.Write(k, world * ProjectionMatrix);
            InstanceAlphas.Write(k, alpha);

            k++;
        }

        InstanceAlphas.Unlock();
        InstanceWVPs.Unlock();

        device.SetInstanceBuffer(InstanceAlphas, 2);
        device.SetInstanceBuffer(InstanceWVPs, 3);

        device.DrawInstanced(4, Instances.Count);
    }
Ejemplo n.º 3
0
    void TransparentRender()
    {
        GraphicsDevice device = GraphicsDevice.Instance;

        device.SetBlendState(AlphaBlend);
        device.SetRasterizerState(CullingOff);
        device.SetDepthStencilState(ZTestOnWriteOff);
        device.SetVertexLayout(VertexLayout);
        device.SetPrimitiveTopology(PrimitiveTopology.TriangleStrip);
        device.SetVertexShader(VertexShader);
        device.SetPixelShader(PixelShader);

        device.SetVertexBuffer(VertexPositions, 0);
        device.SetVertexBuffer(VertexTextureCoords, 1);

        PixelShader.SetSamplerState(Wrap, 0);
        PixelShader.SetTexture(Texture, 0);

        InstanceWVPs.Lock(Accessibility.DynamicWriteOnly);

        var eye = Entity.Find("camera").Get <TransformComponent>().Position;

        for (int i = 0; i < Instances.Length; i++)
        {
            var     instance = Instances[i];
            Vector3 position = instance.Position;
            float   scale    = instance.Scale;

            var world = new Matrix4x3().Identity();
            world.Translate(position * ViewingMatrix);
            world.Scale(scale);

            InstanceWVPs.Write(i, world * ProjectionMatrix);
        }

        InstanceWVPs.Unlock();

        device.SetInstanceBuffer(InstanceWVPs, 2);

        device.DrawInstanced(4, Instances.Length);
    }
Ejemplo n.º 4
0
    private void TranslucentRender()
    {
        GraphicsDeviceContext device = GraphicsDeviceContext.Instance;

        device.SetBlendState(Addition);
        device.SetRasterizerState(CullingOff);
        device.SetDepthStencilState(ZTestOnWriteOff);
        device.SetVertexLayout(VertexLayout);
        device.SetPrimitiveTopology(PrimitiveTopology.TriangleStrip);
        device.SetVertexShader(VertexShader);
        device.SetPixelShader(PixelShader);

        device.SetVertexBuffer(VertexPositions, 0);
        device.SetVertexBuffer(VertexTextureCoords, 1);

        PixelShader.SetSamplerState(Wrap, 0);
        PixelShader.SetTexture(Texture, 0);

        InstanceColors.Lock(Accessibility.DynamicWriteOnly);
        InstanceWVPs.Lock(Accessibility.DynamicWriteOnly);

        var viewing    = Entity.Find("camera").Get <CameraComponent>().ViewingMatrix;
        var projection = Entity.Find("projector").Get <ProjectorComponent>().ProjectionMatrix;
        var eye        = Entity.Find("camera").Get <TransformComponent>().Position;

        int     k         = 0;
        Vector3 position2 = Nodes.First.Value.Position;

        foreach (var node in Nodes)
        {
            Vector3 position1 = node.Position;

            if (k > 0)
            {
                Vector3 vz = position2 - position1;
                vz.Normalize();

                Vector3 vy = Vector3.Outer(vz, position1 - eye);
                vy.Normalize();
                Vector3   vx     = Vector3.Outer(vy, vz);
                Matrix4x3 matrix = new Matrix4x3().Identity();
                matrix.M11 = vx.X; matrix.M12 = vx.Y; matrix.M13 = vx.Z;
                matrix.M21 = vy.X; matrix.M22 = vy.Y; matrix.M23 = vy.Z;
                matrix.M31 = vz.X; matrix.M32 = vz.Y; matrix.M33 = vz.Z;

                var world = new Matrix4x3().Identity();
                world.Translate(position1);
                world.Transform(matrix);
                world.Scale(1, 2, (position1 - position2).Magnitude);

                InstanceWVPs.Write(k, world * viewing * projection);

                //float alpha = clamp(exp(-square(node.Time - 0.5f) / 0.075f), 0, 1) * 0.75f;
                float alpha = clamp(sin((1 - node.Time) * PI) - 0.05f, 0, 1) * (1 - node.Time);
                //float alpha = 1.0f - node.Time;
                InstanceColors.Write(k, new Color(alpha, alpha, alpha));
            }
            k++;
            position2 = position1;
        }

        InstanceColors.Unlock();
        InstanceWVPs.Unlock();

        device.SetInstanceBuffer(InstanceColors, 2);
        device.SetInstanceBuffer(InstanceWVPs, 3);

        device.DrawInstanced(4, Nodes.Count - 1);
    }