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WASM examples (+ backports of new official examples) (#344)

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* chg: New build system that uses the officially distributed binaries, bumped version to 8.0.0, simplified git workflow, removed deprecated OpenGL 1.1 functionality.

* chg: Modernize CI workflow, enable SourceLink

- Bump workflow actions to latest majors (Node 24); drop deprecated softprops/action-gh-release@v1
- Trigger push builds on main instead of master
- Create local nuget feed dir before pack (fixes NU1301)
- Enable Microsoft.SourceLink.GitHub for debugging symbols (ref PR #340)

* fix: centralized version data in Directory.build.props, and fixed various interop details that had incorrect function signatures

* chore: updated readme

* fix: version the native extract marker and chain download via DependsOnTargets

The .extracted marker now includes the raylib package name, so bumping
TargetRaylibTag re-extracts the new archive instead of silently keeping
(and packing/copying) the previous version's files.

_PrepareNativeLibrary and _StageWasmNative now depend directly on
_DownloadAndExtractInternal instead of CallTarget-ing it; dependency
targets run in the same project instance, so the resolved properties
(RaylibPackageName etc.) propagate naturally.

* fix: let the binding build for browser-wasm on both net8.0 and net10.0

The net8-era wasm workload (Microsoft.NET.Runtime.WebAssembly.Sdk 8.0.x,
auto-imported for RID browser-wasm) treats every browser-wasm project as
a wasm app: it forces OutputType=Exe after project evaluation (CS5001
for a classlib) and hooks its app-bundle build after Build, which errors
because a library has no assemblies to bundle. Opt Raylib-cs out via
DisableAutoWasmBuildApp (props time, before the workload defaults its
trigger) and pin OutputType back to Library in Directory.Build.targets
(evaluated after the workload props, so the assignment wins). net10's
wasm SDK needs neither workaround.

* chore: readme updated

* chg: simplifying build logic - a simple line in the documentation should save us the code here

* fix: Wrong signature of FrameBufferComplete

* chore: readme update

* feat: samples default to local project reference, and can optionally use the nuget package

* feat: backporting existing raylib-cs examples and new official raylib examples to WASM, adopting raylib's original code style

* chore: readme, gitignore, and targets backport.

* fix: Examples.csproj runs the download task when building locally

* feat: backporting existing raylib-cs examples and new official raylib examples to WASM, adopting raylib's original code style

* chore: readme, gitignore, and targets backport.

* chore: clean up linter warnings

* feat: html harness focuses the example and allows quick navigation with J/K instead.

* chore: readme mentions the property to use nuget vs. the local project reference

* feat: replaced the J/K navigation with good old HTML buttons

* chore: run dotnet format scoped default (was previously scoped to just 'style')
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tiger tiger tiger 2026-07-30 19:34:34 +02:00 • committed by GitHub
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223
Examples/Shaders/HybridRender.cs
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@ -1,6 +1,8 @@
/*******************************************************************************************
*
* raylib [shaders] example - Hybrid Rendering
* raylib [shaders] example - hybrid rendering
*
* Example complexity rating: [★★★★] 4/4
*
* Example originally created with raylib 4.2, last time updated with raylib 4.2
*
@ -9,53 +11,60 @@
* Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,
* BSD-like license that allows static linking with closed source software
*
* Copyright (c) 2022-2023 Buğra Alptekin Sarı (@BugraAlptekinSari)
* Copyright (c) 2022-2025 Buğra Alptekin Sarı (@BugraAlptekinSari)
*
********************************************************************************************/
using System;
using System.Numerics;
using static Raylib_cs.Raylib;
namespace Examples.Shaders;
public class HybridRender
public class HybridRender : IExample
{
struct RayLocs
private struct RayLocs
{
public int CamPos;
public int CamDir;
public int ScreenCenter;
}
const int GLSL_VERSION = 330;
#if BROWSER
const int GlslVersion = 100; // WebGL1 needs GLSL ES 100
#else
private const int GlslVersion = 330;
#endif
public static int Main()
private const int screenWidth = 800;
private const int screenHeight = 450;
public string Name => "Shaders / Hybrid Render";
public string Title => "raylib [shaders] example - hybrid rendering";
private Shader shdrRaymarch;
private Shader shdrRaster;
private RayLocs marchLocs;
private RenderTexture2D target;
private Camera3D camera;
private float camDist;
public void Init()
{
// Initialization
//--------------------------------------------------------------------------------------
const int screenWidth = 800;
const int screenHeight = 450;
InitWindow(screenWidth, screenHeight, "raylib [shaders] example - hybrid render");
// This shader calculates pixel depth and color using raymarch
Shader shdrRaymarch = LoadShader(null, $"resources/shaders/glsl{GLSL_VERSION}/hybrid_raymarch.fs");
// This Shader calculates pixel depth and color using raymarch
shdrRaymarch = LoadShader(null, $"resources/shaders/glsl{GlslVersion}/hybrid_raymarch.fs");
// This Shader is a standard rasterization fragment shader with the addition of depth writing
// You are required to write depth for all shaders if one shader does it
Shader shdrRaster = LoadShader(null, $"resources/shaders/glsl{GLSL_VERSION}/hybrid_raster.fs");
shdrRaster = LoadShader(null, $"resources/shaders/glsl{GlslVersion}/hybrid_raster.fs");
// Declare struct used to store camera locs
RayLocs marchLocs = new();
// Declare Struct used to store camera locs
marchLocs = new();
// Fill the struct with shader locs.
// Fill the struct with shader locs
marchLocs.CamPos = GetShaderLocation(shdrRaymarch, "camPos");
marchLocs.CamDir = GetShaderLocation(shdrRaymarch, "camDir");
marchLocs.ScreenCenter = GetShaderLocation(shdrRaymarch, "screenCenter");
// Transfer screenCenter position to shader. Which is used to calculate ray direction.
Vector2 screenCenter = new(screenWidth / 2, screenHeight / 2);
// Transfer screenCenter position to shader. Which is used to calculate ray direction
Vector2 screenCenter = new(screenWidth / 2.0f, screenHeight / 2.0f);
SetShaderValue(
shdrRaymarch,
marchLocs.ScreenCenter,
@ -63,91 +72,111 @@ public class HybridRender
ShaderUniformDataType.Vec2
);
// Use customized function to create writable depth texture buffer
RenderTexture2D target = LoadRenderTextureDepthTex(screenWidth, screenHeight);
// Use Customized function to create writable depth texture buffer
target = LoadRenderTextureDepthTex(screenWidth, screenHeight);
// Define the camera to look into our 3d world
Camera3D camera;
camera.Position = new Vector3(0.5f, 1.0f, 1.5f);
camera.Target = new Vector3(0.0f, 0.5f, 0.0f);
camera.Up = new Vector3(0.0f, 1.0f, 0.0f);
camera.FovY = 45.0f;
camera.Projection = CameraProjection.Perspective;
camera = new();
camera.Position = new Vector3(0.5f, 1.0f, 1.5f); // Camera position
camera.Target = new Vector3(0.0f, 0.5f, 0.0f); // Camera looking at point
camera.Up = new Vector3(0.0f, 1.0f, 0.0f); // Camera up vector (rotation towards target)
camera.FovY = 45.0f; // Camera field-of-view Y
camera.Projection = CameraProjection.Perspective; // Camera projection type
// Camera FOV is pre-calculated in the camera Distance.
float camDist = 1.0f / (MathF.Tan(camera.FovY * 0.5f * Raylib.DEG2RAD));
// Camera FOV is pre-calculated in the camera distance
camDist = 1.0f / (MathF.Tan(camera.FovY * 0.5f * Raylib.DEG2RAD));
}
public void Update()
{
// Update
//----------------------------------------------------------------------------------
UpdateCamera(ref camera, CameraMode.Orbital);
// Update Camera Postion in the ray march shader
SetShaderValue(
shdrRaymarch,
marchLocs.CamPos,
camera.Position,
ShaderUniformDataType.Vec3
);
// Update Camera Looking Vector. Vector length determines FOV
var camDir = Vector3.Normalize(camera.Target - camera.Position) * camDist;
SetShaderValue(shdrRaymarch, marchLocs.CamDir, camDir, ShaderUniformDataType.Vec3);
//----------------------------------------------------------------------------------
// Draw
//----------------------------------------------------------------------------------
// Draw into our custom render texture (framebuffer)
BeginTextureMode(target);
ClearBackground(Color.White);
// Raymarch Scene
// Manually enable Depth Test to handle multiple rendering methods
Rlgl.EnableDepthTest();
BeginShaderMode(shdrRaymarch);
DrawRectangleRec(new Rectangle(0, 0, screenWidth, screenHeight), Color.White);
EndShaderMode();
// Rasterize Scene
BeginMode3D(camera);
BeginShaderMode(shdrRaster);
DrawCubeWiresV(new Vector3(0.0f, 0.5f, 1.0f), new Vector3(1.0f, 1.0f, 1.0f), Color.Red);
DrawCubeV(new Vector3(0.0f, 0.5f, 1.0f), new Vector3(1.0f, 1.0f, 1.0f), Color.Purple);
DrawCubeWiresV(new Vector3(0.0f, 0.5f, -1.0f), new Vector3(1.0f, 1.0f, 1.0f), Color.DarkGreen);
DrawCubeV(new Vector3(0.0f, 0.5f, -1.0f), new Vector3(1.0f, 1.0f, 1.0f), Color.Yellow);
DrawGrid(10, 1.0f);
EndShaderMode();
EndMode3D();
EndTextureMode();
// Draw custom render texture
BeginDrawing();
ClearBackground(Color.RayWhite);
DrawTextureRec(
target.Texture,
new Rectangle(0, 0, screenWidth, -screenHeight),
Vector2.Zero,
Color.White
);
DrawFPS(10, 10);
EndDrawing();
//----------------------------------------------------------------------------------
}
public void Unload()
{
UnloadRenderTextureDepthTex(target);
UnloadShader(shdrRaymarch);
UnloadShader(shdrRaster);
}
public static int Main()
{
// Initialization
//--------------------------------------------------------------------------------------
InitWindow(screenWidth, screenHeight, "raylib [shaders] example - hybrid rendering");
SetTargetFPS(60);
//--------------------------------------------------------------------------------------
var game = new HybridRender();
game.Init();
// Main game loop
while (!WindowShouldClose())
{
// Update
//----------------------------------------------------------------------------------
UpdateCamera(ref camera, CameraMode.Orbital);
// Update Camera Postion in the ray march shader.
SetShaderValue(
shdrRaymarch,
marchLocs.CamPos,
camera.Position,
ShaderUniformDataType.Vec3
);
// Update Camera Looking Vector. Vector length determines FOV.
Vector3 camDir = Vector3.Normalize(camera.Target - camera.Position) * camDist;
SetShaderValue(shdrRaymarch, marchLocs.CamDir, camDir, ShaderUniformDataType.Vec3);
//----------------------------------------------------------------------------------
// Draw
//----------------------------------------------------------------------------------
// Draw into our custom render texture (framebuffer)
BeginTextureMode(target);
ClearBackground(Color.White);
// Raymarch Scene
// Manually enable Depth Test to handle multiple rendering methods.
Rlgl.EnableDepthTest();
BeginShaderMode(shdrRaymarch);
DrawRectangleRec(new Rectangle(0, 0, screenWidth, screenHeight), Color.White);
EndShaderMode();
// Rasterize Scene
BeginMode3D(camera);
BeginShaderMode(shdrRaster);
DrawCubeWiresV(new Vector3(0.0f, 0.5f, 1.0f), new Vector3(1.0f, 1.0f, 1.0f), Color.Red);
DrawCubeV(new Vector3(0.0f, 0.5f, 1.0f), new Vector3(1.0f, 1.0f, 1.0f), Color.Purple);
DrawCubeWiresV(new Vector3(0.0f, 0.5f, -1.0f), new Vector3(1.0f, 1.0f, 1.0f), Color.DarkGreen);
DrawCubeV(new Vector3(0.0f, 0.5f, -1.0f), new Vector3(1.0f, 1.0f, 1.0f), Color.Yellow);
DrawGrid(10, 1.0f);
EndShaderMode();
EndMode3D();
EndTextureMode();
// Draw custom render texture
BeginDrawing();
ClearBackground(Color.RayWhite);
DrawTextureRec(
target.Texture,
new Rectangle(0, 0, screenWidth, -screenHeight),
Vector2.Zero,
Color.White
);
DrawFPS(10, 10);
EndDrawing();
//----------------------------------------------------------------------------------
game.Update();
}
game.Unload();
// De-Initialization
//--------------------------------------------------------------------------------------
UnloadRenderTextureDepthTex(target);
UnloadShader(shdrRaymarch);
UnloadShader(shdrRaster);
CloseWindow();
//--------------------------------------------------------------------------------------
@ -203,7 +232,7 @@ public class HybridRender
);
// Check if fbo is complete with attachments (valid)
if (Rlgl.FramebufferComplete(target.Id))
if (Rlgl.FramebufferComplete(target.Id) != 0)
{
TraceLog(TraceLogLevel.Info, $"FBO: [ID {target.Id}] Framebuffer object created successfully");
}