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added barebones ui rendering

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grillkol
2026-04-20 15:36:30 +02:00
parent 96c1faa626
commit a324ff0d16
9 changed files with 230 additions and 6 deletions
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31
Graphics/Renderer.cs
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@@ -1,4 +1,5 @@
using OpenTK.Graphics.OpenGL4;
using OpenTK.Mathematics;
using Voxel.Core;
namespace Voxel.Graphics
@@ -11,17 +12,25 @@ namespace Voxel.Graphics
private static Dictionary<(int, int), int> _chunkBufferSizes = new Dictionary<(int, int), int>();
private static Shader _shader;
private static Shader _uiShader;
private static GuiBatcher _guiBatcher;
private static readonly Texture _texture;
private static readonly Texture _uiTexture;
private static World? _world;
public static int WindowHeight = 1080;
public static int WindowWidth = 1920;
static Renderer()
{
string vertexPath = "Shaders/shader.vert";
string fragmentPath = "Shaders/shader.frag";
string texturePath = "Assets/atlas.png";
string uiTexturePath = "Assets/ascii.png";
_shader = new Shader(vertexPath, fragmentPath);
_texture = new Texture(texturePath);
_uiTexture = new Texture(uiTexturePath);
_shader.SetInt("uTexture", 0);
@@ -33,6 +42,10 @@ namespace Voxel.Graphics
GL.BufferData(BufferTarget.ShaderStorageBuffer, 1024 * 1024 * 128, IntPtr.Zero, BufferUsageHint.DynamicDraw);
GL.BindBufferBase(BufferRangeTarget.ShaderStorageBuffer, 0, _ssbo);
_guiBatcher = new GuiBatcher();
_uiShader = new Shader("Shaders/ui.vert", "Shaders/ui.frag");
_uiShader.SetInt("uTexture", 1);
}
public static void Render()
@@ -44,6 +57,7 @@ namespace Voxel.Graphics
_shader.SetMatrix4("view", Camera.view);
_shader.SetVector3("cameraPosition", Camera.Position);
_shader.SetMatrix4("projection", Camera.projection);
_texture.Bind(TextureUnit.Texture0);
if (_buffersDirty)
{
@@ -110,7 +124,24 @@ namespace Voxel.Graphics
private static void RenderUi()
{
GL.Disable(EnableCap.CullFace);
GL.Disable(EnableCap.DepthTest);
GL.Enable(EnableCap.Blend);
GL.BlendFunc(BlendingFactor.SrcAlpha, BlendingFactor.OneMinusSrcAlpha);
_uiShader.Use();
Matrix4 projection = Matrix4.CreateOrthographicOffCenter(0, WindowWidth, WindowHeight, 0, -1, 1);
_uiShader.SetMatrix4("projection", projection);
_uiTexture.Bind(TextureUnit.Texture0);
_guiBatcher.DrawString("Voxel Engine v0.1", 15, 70, 20, Vector4.One);
_guiBatcher.Render();
GL.Disable(EnableCap.Blend);
GL.Enable(EnableCap.DepthTest);
GL.Enable(EnableCap.CullFace);
}
private static void RenderWorld()