diff --git a/MoonWorks.Test.Common/Content/Textures/mip0.png b/MoonWorks.Test.Common/Content/Textures/mip0.png
new file mode 100644
index 0000000..88c2d81
Binary files /dev/null and b/MoonWorks.Test.Common/Content/Textures/mip0.png differ
diff --git a/MoonWorks.Test.Common/Content/Textures/mip1.png b/MoonWorks.Test.Common/Content/Textures/mip1.png
new file mode 100644
index 0000000..58c0fd3
Binary files /dev/null and b/MoonWorks.Test.Common/Content/Textures/mip1.png differ
diff --git a/MoonWorks.Test.Common/Content/Textures/mip2.png b/MoonWorks.Test.Common/Content/Textures/mip2.png
new file mode 100644
index 0000000..a84993b
Binary files /dev/null and b/MoonWorks.Test.Common/Content/Textures/mip2.png differ
diff --git a/MoonWorks.Test.Common/Content/Textures/mip3.png b/MoonWorks.Test.Common/Content/Textures/mip3.png
new file mode 100644
index 0000000..d6df85a
Binary files /dev/null and b/MoonWorks.Test.Common/Content/Textures/mip3.png differ
diff --git a/MoonWorksGraphicsTests.sln b/MoonWorksGraphicsTests.sln
index 1f61e44..d2b285c 100644
--- a/MoonWorksGraphicsTests.sln
+++ b/MoonWorksGraphicsTests.sln
@@ -51,6 +51,8 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "RenderTextureCube", "Render
EndProject
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "RenderTextureMipmaps", "RenderTextureMipmaps\RenderTextureMipmaps.csproj", "{2219C628-5593-4C23-86CB-0E1E96EBD6C5}"
EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "TextureMipmaps", "TextureMipmaps\TextureMipmaps.csproj", "{5A1AC35B-EF18-426D-A633-D4899E84EAA7}"
+EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|x64 = Debug|x64
@@ -131,28 +133,32 @@ Global
{FCD63849-9D3C-4D48-A8BD-39671096F03A}.Release|x64.Build.0 = Release|x64
{9D0F0573-7FD4-4480-8F9B-CDD52120A170}.Debug|x64.ActiveCfg = Debug|x64
{9D0F0573-7FD4-4480-8F9B-CDD52120A170}.Debug|x64.Build.0 = Debug|x64
- {9D0F0573-7FD4-4480-8F9B-CDD52120A170}.Release|x64.ActiveCfg = Release|Any CPU
- {9D0F0573-7FD4-4480-8F9B-CDD52120A170}.Release|x64.Build.0 = Release|Any CPU
+ {9D0F0573-7FD4-4480-8F9B-CDD52120A170}.Release|x64.ActiveCfg = Release|x64
+ {9D0F0573-7FD4-4480-8F9B-CDD52120A170}.Release|x64.Build.0 = Release|x64
{5CDA8D41-F96C-4DE7-AD53-5A76C4C0CC31}.Debug|x64.ActiveCfg = Debug|x64
{5CDA8D41-F96C-4DE7-AD53-5A76C4C0CC31}.Debug|x64.Build.0 = Debug|x64
{5CDA8D41-F96C-4DE7-AD53-5A76C4C0CC31}.Release|x64.ActiveCfg = Release|x64
{5CDA8D41-F96C-4DE7-AD53-5A76C4C0CC31}.Release|x64.Build.0 = Release|x64
{C525B6DE-3003-45D5-BB83-89679B108C08}.Debug|x64.ActiveCfg = Debug|x64
{C525B6DE-3003-45D5-BB83-89679B108C08}.Debug|x64.Build.0 = Debug|x64
- {C525B6DE-3003-45D5-BB83-89679B108C08}.Release|x64.ActiveCfg = Release|Any CPU
- {C525B6DE-3003-45D5-BB83-89679B108C08}.Release|x64.Build.0 = Release|Any CPU
+ {C525B6DE-3003-45D5-BB83-89679B108C08}.Release|x64.ActiveCfg = Release|x64
+ {C525B6DE-3003-45D5-BB83-89679B108C08}.Release|x64.Build.0 = Release|x64
{6D625A4C-8618-4DFC-A6AD-AA3BE3488D70}.Debug|x64.ActiveCfg = Debug|x64
{6D625A4C-8618-4DFC-A6AD-AA3BE3488D70}.Debug|x64.Build.0 = Debug|x64
- {6D625A4C-8618-4DFC-A6AD-AA3BE3488D70}.Release|x64.ActiveCfg = Release|Any CPU
- {6D625A4C-8618-4DFC-A6AD-AA3BE3488D70}.Release|x64.Build.0 = Release|Any CPU
+ {6D625A4C-8618-4DFC-A6AD-AA3BE3488D70}.Release|x64.ActiveCfg = Release|x64
+ {6D625A4C-8618-4DFC-A6AD-AA3BE3488D70}.Release|x64.Build.0 = Release|x64
{D7A8452F-123F-4965-8716-9E39F677A831}.Debug|x64.ActiveCfg = Debug|x64
{D7A8452F-123F-4965-8716-9E39F677A831}.Debug|x64.Build.0 = Debug|x64
- {D7A8452F-123F-4965-8716-9E39F677A831}.Release|x64.ActiveCfg = Release|Any CPU
- {D7A8452F-123F-4965-8716-9E39F677A831}.Release|x64.Build.0 = Release|Any CPU
+ {D7A8452F-123F-4965-8716-9E39F677A831}.Release|x64.ActiveCfg = Release|x64
+ {D7A8452F-123F-4965-8716-9E39F677A831}.Release|x64.Build.0 = Release|x64
{2219C628-5593-4C23-86CB-0E1E96EBD6C5}.Debug|x64.ActiveCfg = Debug|x64
{2219C628-5593-4C23-86CB-0E1E96EBD6C5}.Debug|x64.Build.0 = Debug|x64
{2219C628-5593-4C23-86CB-0E1E96EBD6C5}.Release|x64.ActiveCfg = Release|x64
{2219C628-5593-4C23-86CB-0E1E96EBD6C5}.Release|x64.Build.0 = Release|x64
+ {5A1AC35B-EF18-426D-A633-D4899E84EAA7}.Debug|x64.ActiveCfg = Debug|x64
+ {5A1AC35B-EF18-426D-A633-D4899E84EAA7}.Debug|x64.Build.0 = Debug|x64
+ {5A1AC35B-EF18-426D-A633-D4899E84EAA7}.Release|x64.ActiveCfg = Release|x64
+ {5A1AC35B-EF18-426D-A633-D4899E84EAA7}.Release|x64.Build.0 = Release|x64
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
diff --git a/README.md b/README.md
index 3cc1d34..7b56fe7 100644
--- a/README.md
+++ b/README.md
@@ -72,6 +72,10 @@ Plays a sample Ogg Theora video file. Tests YUV textures and video rendering.
Displays 2D slices of a 3D texture. Tests creating and drawing 3D textures.
+**TextureMipmaps**
+
+Displays a quad that can be scaled to reveal various mip levels. The mips are generated from PNGs. Tests SetTextureData for mip levels and rendering mipmaps.
+
**VertexSampler**
Displays a triangle whose colors are driven by sampling a texture in the vertex shader.
@@ -86,4 +90,4 @@ Displays a cubemap generated by rendering to a cube render target. Tests binding
**RenderTextureMipmaps**
-Displays a quad that can be scaled to reveal various mip levels. The mips are solid colors, generated by clearing various levels of the texture in a render pass. Tests rendering to mipmap levels of a render texture and rendering mipmaps.
+Displays a quad that can be scaled to reveal various mip levels. The mips are solid colors, generated by clearing various levels of the texture in a render pass. Tests rendering to mipmap levels of a render texture, mip LOD bias, min/max LODs, and mip filter modes.
diff --git a/TextureMipmaps/TextureMipmaps.csproj b/TextureMipmaps/TextureMipmaps.csproj
new file mode 100644
index 0000000..2868e63
--- /dev/null
+++ b/TextureMipmaps/TextureMipmaps.csproj
@@ -0,0 +1,17 @@
+
+
+
+
+
+
+
+
+ Exe
+ net7.0
+ enable
+ x64
+
+
+
+
+
diff --git a/TextureMipmaps/TextureMipmapsGame.cs b/TextureMipmaps/TextureMipmapsGame.cs
new file mode 100644
index 0000000..389c377
--- /dev/null
+++ b/TextureMipmaps/TextureMipmapsGame.cs
@@ -0,0 +1,148 @@
+using MoonWorks;
+using MoonWorks.Graphics;
+using MoonWorks.Math.Float;
+using RefreshCS;
+
+namespace MoonWorks.Test
+{
+ class TextureMipmapsGame : Game
+ {
+ private GraphicsPipeline pipeline;
+ private Buffer vertexBuffer;
+ private Buffer indexBuffer;
+ private Texture texture;
+ private Sampler sampler;
+
+ private float scale = 0.5f;
+
+ private struct VertexUniforms
+ {
+ public Matrix4x4 TransformMatrix;
+
+ public VertexUniforms(Matrix4x4 transformMatrix)
+ {
+ TransformMatrix = transformMatrix;
+ }
+ }
+
+ public TextureMipmapsGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), 60, true)
+ {
+ Logger.LogInfo("Press Left and Right to shrink/expand the scale of the quad");
+
+ // Load the shaders
+ ShaderModule vertShaderModule = new ShaderModule(GraphicsDevice, TestUtils.GetShaderPath("TexturedQuadVertWithMatrix"));
+ ShaderModule fragShaderModule = new ShaderModule(GraphicsDevice, TestUtils.GetShaderPath("TexturedQuadFrag"));
+
+ // Create the graphics pipeline
+ GraphicsPipelineCreateInfo pipelineCreateInfo = TestUtils.GetStandardGraphicsPipelineCreateInfo(
+ MainWindow.SwapchainFormat,
+ vertShaderModule,
+ fragShaderModule
+ );
+ pipelineCreateInfo.VertexInputState = VertexInputState.CreateSingleBinding();
+ pipelineCreateInfo.VertexShaderInfo = GraphicsShaderInfo.Create(vertShaderModule, "main", 0);
+ pipelineCreateInfo.FragmentShaderInfo.SamplerBindingCount = 1;
+ pipeline = new GraphicsPipeline(GraphicsDevice, pipelineCreateInfo);
+
+ // Create and populate the GPU resources
+ sampler = new Sampler(GraphicsDevice, SamplerCreateInfo.PointClamp);
+ vertexBuffer = Buffer.Create(GraphicsDevice, BufferUsageFlags.Vertex, 4);
+ indexBuffer = Buffer.Create(GraphicsDevice, BufferUsageFlags.Index, 6);
+ texture = Texture.CreateTexture2D(
+ GraphicsDevice,
+ 256,
+ 256,
+ TextureFormat.R8G8B8A8,
+ TextureUsageFlags.Sampler,
+ 4
+ );
+
+ CommandBuffer cmdbuf = GraphicsDevice.AcquireCommandBuffer();
+ cmdbuf.SetBufferData(
+ vertexBuffer,
+ new PositionTextureVertex[]
+ {
+ new PositionTextureVertex(new Vector3(-1, -1, 0), new Vector2(0, 0)),
+ new PositionTextureVertex(new Vector3(1, -1, 0), new Vector2(1, 0)),
+ new PositionTextureVertex(new Vector3(1, 1, 0), new Vector2(1, 1)),
+ new PositionTextureVertex(new Vector3(-1, 1, 0), new Vector2(0, 1)),
+ }
+ );
+ cmdbuf.SetBufferData(
+ indexBuffer,
+ new ushort[]
+ {
+ 0, 1, 2,
+ 0, 2, 3,
+ }
+ );
+
+ // Set the various mip levels
+ for (int i = 0; i < texture.LevelCount; i += 1)
+ {
+ int w = (int) texture.Width >> i;
+ int h = (int) texture.Height >> i;
+ TextureSlice slice = new TextureSlice(
+ texture,
+ new Rect(0, 0, w, h),
+ 0,
+ 0,
+ (uint) i
+ );
+
+ var pixels = Refresh.Refresh_Image_Load(
+ TestUtils.GetTexturePath($"mip{i}.png"),
+ out var width,
+ out var height,
+ out var channels
+ );
+
+ var byteCount = (uint)(width * height * channels);
+ cmdbuf.SetTextureData(slice, pixels, byteCount);
+
+ Refresh.Refresh_Image_Free(pixels);
+ }
+
+ GraphicsDevice.Submit(cmdbuf);
+ }
+
+ protected override void Update(System.TimeSpan delta)
+ {
+ if (TestUtils.CheckButtonDown(Inputs, TestUtils.ButtonType.Left))
+ {
+ scale = System.MathF.Max(0.01f, scale - 0.01f);
+ }
+
+ if (TestUtils.CheckButtonDown(Inputs, TestUtils.ButtonType.Right))
+ {
+ scale = System.MathF.Min(1f, scale + 0.01f);
+ }
+ }
+
+ protected override void Draw(double alpha)
+ {
+ VertexUniforms vertUniforms = new VertexUniforms(Matrix4x4.CreateScale(scale, scale, 1));
+
+ CommandBuffer cmdbuf = GraphicsDevice.AcquireCommandBuffer();
+ Texture? backbuffer = cmdbuf.AcquireSwapchainTexture(MainWindow);
+ if (backbuffer != null)
+ {
+ cmdbuf.BeginRenderPass(new ColorAttachmentInfo(backbuffer, Color.Black));
+ cmdbuf.BindGraphicsPipeline(pipeline);
+ cmdbuf.BindVertexBuffers(vertexBuffer);
+ cmdbuf.BindIndexBuffer(indexBuffer, IndexElementSize.Sixteen);
+ cmdbuf.BindFragmentSamplers(new TextureSamplerBinding(texture, sampler));
+ uint vertParamOffset = cmdbuf.PushVertexShaderUniforms(vertUniforms);
+ cmdbuf.DrawIndexedPrimitives(0, 0, 2, vertParamOffset, 0);
+ cmdbuf.EndRenderPass();
+ }
+ GraphicsDevice.Submit(cmdbuf);
+ }
+
+ public static void Main(string[] args)
+ {
+ TextureMipmapsGame game = new TextureMipmapsGame();
+ game.Run();
+ }
+ }
+}