public void RenderPointWithStencil()
{
using (GraphicsWindow window = Device.CreateWindow(1, 1))
using (Framebuffer framebuffer = TestUtility.CreateFramebuffer(window.Context))
using (Texture2D depthStencilTexture = Device.CreateTexture2D(new Texture2DDescription(1, 1, TextureFormat.Depth24Stencil8, false)))
using (ShaderProgram sp = Device.CreateShaderProgram(ShaderSources.PassThroughVertexShader(), ShaderSources.PassThroughFragmentShader()))
using (VertexArray va = TestUtility.CreateVertexArray(window.Context, sp.VertexAttributes["position"].Location))
{
framebuffer.DepthStencilAttachment = depthStencilTexture;
StencilTest stencilTest = new StencilTest();
stencilTest.Enabled = true;
stencilTest.FrontFace.DepthFailStencilPassOperation = StencilOperation.Replace;
stencilTest.FrontFace.DepthPassStencilPassOperation = StencilOperation.Replace;
stencilTest.FrontFace.StencilFailOperation = StencilOperation.Replace;
stencilTest.FrontFace.ReferenceValue = 2;
RenderState renderState = new RenderState();
renderState.StencilTest = stencilTest;
window.Context.Framebuffer = framebuffer;
window.Context.Clear(new ClearState());
window.Context.Draw(PrimitiveType.Points, 0, 1, new DrawState(renderState, sp, va), new SceneState());
TestUtility.ValidateColor(framebuffer.ColorAttachments[0], 255, 0, 0);
using (ReadPixelBuffer readPixelBuffer = depthStencilTexture.CopyToBuffer(ImageFormat.DepthStencil, ImageDatatype.UnsignedInt248, 1))
{
byte[] depthStencil = readPixelBuffer.CopyToSystemMemory <byte>();
Assert.AreEqual(stencilTest.FrontFace.ReferenceValue, depthStencil[0]);
}
}
}
public RenderState()
{
PrimitiveRestart = new PrimitiveRestart();
FacetCulling = new FacetCulling();
ProgramPointSize = ProgramPointSize.Disabled;
RasterizationMode = RasterizationMode.Fill;
ScissorTest = new ScissorTest();
StencilTest = new StencilTest();
DepthTest = new DepthTest();
DepthRange = new DepthRange();
Blending = new Blending();
ColorMask = new ColorMask(true, true, true, true);
DepthMask = true;
}
public RenderState()
{
PrimitiveRestart = new PrimitiveRestart();
FacetCulling = new FacetCulling();
ProgramPointSize = ProgramPointSize.Disabled;
RasterizationMode = RasterizationMode.Fill;
ScissorTest = new ScissorTest();
StencilTest = new StencilTest();
DepthTest = new DepthTest();
DepthRange = new DepthRange();
Blending = new Blending();
ColorMask = new ColorMask(true, true, true, true);
DepthMask = true;
}
public void StencilTest()
{
StencilTest stencilTest = new StencilTest();
StencilTestFace frontStencil = stencilTest.FrontFace;
StencilTestFace backStencil = stencilTest.BackFace;
stencilTest.Enabled = true;
frontStencil.StencilFailOperation = StencilOperation.Keep;
frontStencil.DepthFailStencilPassOperation = StencilOperation.Keep;
frontStencil.DepthPassStencilPassOperation = StencilOperation.Increment;
frontStencil.Function = StencilTestFunction.Always;
frontStencil.ReferenceValue = 0;
frontStencil.Mask = 0xFF;
backStencil.StencilFailOperation = StencilOperation.Zero;
backStencil.DepthFailStencilPassOperation = StencilOperation.Zero;
backStencil.DepthPassStencilPassOperation = StencilOperation.Decrement;
backStencil.Function = StencilTestFunction.Equal;
backStencil.ReferenceValue = 1;
backStencil.Mask = 0x03;
Assert.IsTrue(stencilTest.Enabled);
Assert.AreEqual(StencilOperation.Keep, frontStencil.StencilFailOperation);
Assert.AreEqual(StencilOperation.Keep, frontStencil.DepthFailStencilPassOperation);
Assert.AreEqual(StencilOperation.Increment, frontStencil.DepthPassStencilPassOperation);
Assert.AreEqual(StencilTestFunction.Always, frontStencil.Function);
Assert.AreEqual(0, frontStencil.ReferenceValue);
Assert.AreEqual(0xFF, frontStencil.Mask);
Assert.AreEqual(StencilOperation.Zero, backStencil.StencilFailOperation);
Assert.AreEqual(StencilOperation.Zero, backStencil.DepthFailStencilPassOperation);
Assert.AreEqual(StencilOperation.Decrement, backStencil.DepthPassStencilPassOperation);
Assert.AreEqual(StencilTestFunction.Equal, backStencil.Function);
Assert.AreEqual(1, backStencil.ReferenceValue);
Assert.AreEqual(0x03, backStencil.Mask);
}
public void StencilTest()
{
StencilTest stencilTest = new StencilTest();
StencilTestFace frontStencil = stencilTest.FrontFace;
StencilTestFace backStencil = stencilTest.BackFace;
stencilTest.Enabled = true;
frontStencil.StencilFailOperation = StencilOperation.Keep;
frontStencil.DepthFailStencilPassOperation = StencilOperation.Keep;
frontStencil.DepthPassStencilPassOperation = StencilOperation.Increment;
frontStencil.Function = StencilTestFunction.Always;
frontStencil.ReferenceValue = 0;
frontStencil.Mask = 0xFF;
backStencil.StencilFailOperation = StencilOperation.Zero;
backStencil.DepthFailStencilPassOperation = StencilOperation.Zero;
backStencil.DepthPassStencilPassOperation = StencilOperation.Decrement;
backStencil.Function = StencilTestFunction.Equal;
backStencil.ReferenceValue = 1;
backStencil.Mask = 0x03;
Assert.IsTrue(stencilTest.Enabled);
Assert.AreEqual(StencilOperation.Keep, frontStencil.StencilFailOperation);
Assert.AreEqual(StencilOperation.Keep, frontStencil.DepthFailStencilPassOperation);
Assert.AreEqual(StencilOperation.Increment, frontStencil.DepthPassStencilPassOperation);
Assert.AreEqual(StencilTestFunction.Always, frontStencil.Function);
Assert.AreEqual(0, frontStencil.ReferenceValue);
Assert.AreEqual(0xFF, frontStencil.Mask);
Assert.AreEqual(StencilOperation.Zero, backStencil.StencilFailOperation);
Assert.AreEqual(StencilOperation.Zero, backStencil.DepthFailStencilPassOperation);
Assert.AreEqual(StencilOperation.Decrement, backStencil.DepthPassStencilPassOperation);
Assert.AreEqual(StencilTestFunction.Equal, backStencil.Function);
Assert.AreEqual(1, backStencil.ReferenceValue);
Assert.AreEqual(0x03, backStencil.Mask);
}
public void RenderPointWithStencil()
{
using (GraphicsWindow window = Device.CreateWindow(1, 1))
using (Framebuffer framebuffer = TestUtility.CreateFramebuffer(window.Context))
using (Texture2D depthStencilTexture = Device.CreateTexture2D(new Texture2DDescription(1, 1, TextureFormat.Depth24Stencil8, false)))
using (ShaderProgram sp = Device.CreateShaderProgram(ShaderSources.PassThroughVertexShader(), ShaderSources.PassThroughFragmentShader()))
using (VertexArray va = TestUtility.CreateVertexArray(window.Context, sp.VertexAttributes["position"].Location))
{
framebuffer.DepthStencilAttachment = depthStencilTexture;
StencilTest stencilTest = new StencilTest();
stencilTest.Enabled = true;
stencilTest.FrontFace.DepthFailStencilPassOperation = StencilOperation.Replace;
stencilTest.FrontFace.DepthPassStencilPassOperation = StencilOperation.Replace;
stencilTest.FrontFace.StencilFailOperation = StencilOperation.Replace;
stencilTest.FrontFace.ReferenceValue = 2;
RenderState renderState = new RenderState();
renderState.StencilTest = stencilTest;
window.Context.Framebuffer = framebuffer;
window.Context.Clear(new ClearState());
window.Context.Draw(PrimitiveType.Points, 0, 1, new DrawState(renderState, sp, va), new SceneState());
TestUtility.ValidateColor(framebuffer.ColorAttachments[0], 255, 0, 0);
using (ReadPixelBuffer readPixelBuffer = depthStencilTexture.CopyToBuffer(ImageFormat.DepthStencil, ImageDatatype.UnsignedInt248, 1))
{
byte[] depthStencil = readPixelBuffer.CopyToSystemMemory<byte>();
Assert.AreEqual(stencilTest.FrontFace.ReferenceValue, depthStencil[0]);
}
}
}