chore: clean recommit
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tiger tiger tiger
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6bb62d9932
commit
8739e3b347
134 changed files with 15442 additions and 10648 deletions
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@ -1,6 +1,8 @@
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/*******************************************************************************************
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*
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* raylib [shaders] example - Hybrid Rendering
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* raylib [shaders] example - hybrid rendering
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*
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* Example complexity rating: [★★★★] 4/4
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*
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* Example originally created with raylib 4.2, last time updated with raylib 4.2
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*
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@ -9,7 +11,7 @@
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* Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,
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* BSD-like license that allows static linking with closed source software
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*
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* Copyright (c) 2022-2023 Buğra Alptekin Sarı (@BugraAlptekinSari)
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* Copyright (c) 2022-2025 Buğra Alptekin Sarı (@BugraAlptekinSari)
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*
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********************************************************************************************/
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@ -19,43 +21,54 @@ using static Raylib_cs.Raylib;
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namespace Examples.Shaders;
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public class HybridRender
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public class HybridRender : IExample
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{
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struct RayLocs
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private struct RayLocs
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{
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public int CamPos;
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public int CamDir;
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public int ScreenCenter;
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}
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const int GLSL_VERSION = 330;
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#if BROWSER
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const int GlslVersion = 100; // WebGL1 needs GLSL ES 100
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#else
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private const int GlslVersion = 330;
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#endif
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public static int Main()
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private const int screenWidth = 800;
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private const int screenHeight = 450;
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public string Name => "Shaders / Hybrid Render";
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public string Title => "raylib [shaders] example - hybrid rendering";
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private Shader shdrRaymarch;
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private Shader shdrRaster;
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private RayLocs marchLocs;
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private RenderTexture2D target;
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private Camera3D camera;
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private float camDist;
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public void Init()
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{
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// Initialization
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//--------------------------------------------------------------------------------------
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const int screenWidth = 800;
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const int screenHeight = 450;
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InitWindow(screenWidth, screenHeight, "raylib [shaders] example - hybrid render");
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// This shader calculates pixel depth and color using raymarch
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Shader shdrRaymarch = LoadShader(null, $"resources/shaders/glsl{GLSL_VERSION}/hybrid_raymarch.fs");
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// This Shader calculates pixel depth and color using raymarch
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shdrRaymarch = LoadShader(null, $"resources/shaders/glsl{GlslVersion}/hybrid_raymarch.fs");
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// This Shader is a standard rasterization fragment shader with the addition of depth writing
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// You are required to write depth for all shaders if one shader does it
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Shader shdrRaster = LoadShader(null, $"resources/shaders/glsl{GLSL_VERSION}/hybrid_raster.fs");
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shdrRaster = LoadShader(null, $"resources/shaders/glsl{GlslVersion}/hybrid_raster.fs");
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// Declare struct used to store camera locs
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RayLocs marchLocs = new();
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// Declare Struct used to store camera locs
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marchLocs = new();
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// Fill the struct with shader locs.
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// Fill the struct with shader locs
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marchLocs.CamPos = GetShaderLocation(shdrRaymarch, "camPos");
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marchLocs.CamDir = GetShaderLocation(shdrRaymarch, "camDir");
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marchLocs.ScreenCenter = GetShaderLocation(shdrRaymarch, "screenCenter");
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// Transfer screenCenter position to shader. Which is used to calculate ray direction.
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Vector2 screenCenter = new(screenWidth / 2, screenHeight / 2);
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// Transfer screenCenter position to shader. Which is used to calculate ray direction
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Vector2 screenCenter = new(screenWidth / 2.0f, screenHeight / 2.0f);
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SetShaderValue(
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shdrRaymarch,
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marchLocs.ScreenCenter,
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@ -63,91 +76,111 @@ public class HybridRender
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ShaderUniformDataType.Vec2
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);
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// Use customized function to create writable depth texture buffer
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RenderTexture2D target = LoadRenderTextureDepthTex(screenWidth, screenHeight);
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// Use Customized function to create writable depth texture buffer
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target = LoadRenderTextureDepthTex(screenWidth, screenHeight);
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// Define the camera to look into our 3d world
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Camera3D camera;
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camera.Position = new Vector3(0.5f, 1.0f, 1.5f);
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camera.Target = new Vector3(0.0f, 0.5f, 0.0f);
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camera.Up = new Vector3(0.0f, 1.0f, 0.0f);
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camera.FovY = 45.0f;
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camera.Projection = CameraProjection.Perspective;
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camera = new();
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camera.Position = new Vector3(0.5f, 1.0f, 1.5f); // Camera position
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camera.Target = new Vector3(0.0f, 0.5f, 0.0f); // Camera looking at point
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camera.Up = new Vector3(0.0f, 1.0f, 0.0f); // Camera up vector (rotation towards target)
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camera.FovY = 45.0f; // Camera field-of-view Y
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camera.Projection = CameraProjection.Perspective; // Camera projection type
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// Camera FOV is pre-calculated in the camera Distance.
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float camDist = 1.0f / (MathF.Tan(camera.FovY * 0.5f * Raylib.DEG2RAD));
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// Camera FOV is pre-calculated in the camera distance
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camDist = 1.0f / (MathF.Tan(camera.FovY * 0.5f * Raylib.DEG2RAD));
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}
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public void Update()
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{
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// Update
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//----------------------------------------------------------------------------------
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UpdateCamera(ref camera, CameraMode.Orbital);
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// Update Camera Postion in the ray march shader
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SetShaderValue(
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shdrRaymarch,
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marchLocs.CamPos,
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camera.Position,
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ShaderUniformDataType.Vec3
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);
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// Update Camera Looking Vector. Vector length determines FOV
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var camDir = Vector3.Normalize(camera.Target - camera.Position) * camDist;
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SetShaderValue(shdrRaymarch, marchLocs.CamDir, camDir, ShaderUniformDataType.Vec3);
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//----------------------------------------------------------------------------------
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// Draw
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//----------------------------------------------------------------------------------
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// Draw into our custom render texture (framebuffer)
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BeginTextureMode(target);
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ClearBackground(Color.White);
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// Raymarch Scene
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// Manually enable Depth Test to handle multiple rendering methods
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Rlgl.EnableDepthTest();
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BeginShaderMode(shdrRaymarch);
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DrawRectangleRec(new Rectangle(0, 0, screenWidth, screenHeight), Color.White);
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EndShaderMode();
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// Rasterize Scene
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BeginMode3D(camera);
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BeginShaderMode(shdrRaster);
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DrawCubeWiresV(new Vector3(0.0f, 0.5f, 1.0f), new Vector3(1.0f, 1.0f, 1.0f), Color.Red);
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DrawCubeV(new Vector3(0.0f, 0.5f, 1.0f), new Vector3(1.0f, 1.0f, 1.0f), Color.Purple);
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DrawCubeWiresV(new Vector3(0.0f, 0.5f, -1.0f), new Vector3(1.0f, 1.0f, 1.0f), Color.DarkGreen);
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DrawCubeV(new Vector3(0.0f, 0.5f, -1.0f), new Vector3(1.0f, 1.0f, 1.0f), Color.Yellow);
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DrawGrid(10, 1.0f);
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EndShaderMode();
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EndMode3D();
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EndTextureMode();
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// Draw custom render texture
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BeginDrawing();
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ClearBackground(Color.RayWhite);
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DrawTextureRec(
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target.Texture,
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new Rectangle(0, 0, screenWidth, -screenHeight),
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Vector2.Zero,
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Color.White
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);
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DrawFPS(10, 10);
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EndDrawing();
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//----------------------------------------------------------------------------------
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}
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public void Unload()
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{
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UnloadRenderTextureDepthTex(target);
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UnloadShader(shdrRaymarch);
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UnloadShader(shdrRaster);
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}
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public static int Main()
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{
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// Initialization
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//--------------------------------------------------------------------------------------
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InitWindow(screenWidth, screenHeight, "raylib [shaders] example - hybrid rendering");
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SetTargetFPS(60);
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//--------------------------------------------------------------------------------------
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var game = new HybridRender();
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game.Init();
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// Main game loop
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while (!WindowShouldClose())
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{
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// Update
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//----------------------------------------------------------------------------------
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UpdateCamera(ref camera, CameraMode.Orbital);
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// Update Camera Postion in the ray march shader.
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SetShaderValue(
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shdrRaymarch,
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marchLocs.CamPos,
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camera.Position,
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ShaderUniformDataType.Vec3
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);
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// Update Camera Looking Vector. Vector length determines FOV.
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Vector3 camDir = Vector3.Normalize(camera.Target - camera.Position) * camDist;
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SetShaderValue(shdrRaymarch, marchLocs.CamDir, camDir, ShaderUniformDataType.Vec3);
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//----------------------------------------------------------------------------------
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// Draw
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//----------------------------------------------------------------------------------
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// Draw into our custom render texture (framebuffer)
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BeginTextureMode(target);
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ClearBackground(Color.White);
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// Raymarch Scene
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// Manually enable Depth Test to handle multiple rendering methods.
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Rlgl.EnableDepthTest();
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BeginShaderMode(shdrRaymarch);
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DrawRectangleRec(new Rectangle(0, 0, screenWidth, screenHeight), Color.White);
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EndShaderMode();
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// Rasterize Scene
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BeginMode3D(camera);
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BeginShaderMode(shdrRaster);
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DrawCubeWiresV(new Vector3(0.0f, 0.5f, 1.0f), new Vector3(1.0f, 1.0f, 1.0f), Color.Red);
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DrawCubeV(new Vector3(0.0f, 0.5f, 1.0f), new Vector3(1.0f, 1.0f, 1.0f), Color.Purple);
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DrawCubeWiresV(new Vector3(0.0f, 0.5f, -1.0f), new Vector3(1.0f, 1.0f, 1.0f), Color.DarkGreen);
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DrawCubeV(new Vector3(0.0f, 0.5f, -1.0f), new Vector3(1.0f, 1.0f, 1.0f), Color.Yellow);
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DrawGrid(10, 1.0f);
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EndShaderMode();
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EndMode3D();
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EndTextureMode();
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// Draw custom render texture
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BeginDrawing();
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ClearBackground(Color.RayWhite);
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DrawTextureRec(
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target.Texture,
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new Rectangle(0, 0, screenWidth, -screenHeight),
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Vector2.Zero,
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Color.White
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);
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DrawFPS(10, 10);
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EndDrawing();
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//----------------------------------------------------------------------------------
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game.Update();
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}
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game.Unload();
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// De-Initialization
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//--------------------------------------------------------------------------------------
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UnloadRenderTextureDepthTex(target);
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UnloadShader(shdrRaymarch);
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UnloadShader(shdrRaster);
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CloseWindow();
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//--------------------------------------------------------------------------------------
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@ -203,7 +236,7 @@ public class HybridRender
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);
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// Check if fbo is complete with attachments (valid)
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if (Rlgl.FramebufferComplete(target.Id))
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if (Rlgl.FramebufferComplete(target.Id) != 0)
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{
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TraceLog(TraceLogLevel.Info, $"FBO: [ID {target.Id}] Framebuffer object created successfully");
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}
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