Init commit v1.0

1 files changed, 177 insertions, 0 deletions

diff --git a/deps/raylib/examples/shaders/shaders_postprocessing.c b/deps/raylib/examples/shaders/shaders_postprocessing.c
new file mode 100644
index 0000000..54ffae9
--- /dev/null
+++ b/deps/raylib/examples/shaders/shaders_postprocessing.c
@@ -0,0 +1,177 @@
+/*******************************************************************************************
+*
+*   raylib [shaders] example - Apply a postprocessing shader to a scene
+*
+*   NOTE: This example requires raylib OpenGL 3.3 or ES2 versions for shaders support,
+*         OpenGL 1.1 does not support shaders, recompile raylib to OpenGL 3.3 version.
+*
+*   NOTE: Shaders used in this example are #version 330 (OpenGL 3.3), to test this example
+*         on OpenGL ES 2.0 platforms (Android, Raspberry Pi, HTML5), use #version 100 shaders
+*         raylib comes with shaders ready for both versions, check raylib/shaders install folder
+*
+*   Example originally created with raylib 1.3, last time updated with raylib 4.0
+*
+*   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) 2015-2024 Ramon Santamaria (@raysan5)
+*
+********************************************************************************************/
+
+#include "raylib.h"
+
+#if defined(PLATFORM_DESKTOP)
+    #define GLSL_VERSION            330
+#else   // PLATFORM_ANDROID, PLATFORM_WEB
+    #define GLSL_VERSION            100
+#endif
+
+#define MAX_POSTPRO_SHADERS         12
+
+typedef enum {
+    FX_GRAYSCALE = 0,
+    FX_POSTERIZATION,
+    FX_DREAM_VISION,
+    FX_PIXELIZER,
+    FX_CROSS_HATCHING,
+    FX_CROSS_STITCHING,
+    FX_PREDATOR_VIEW,
+    FX_SCANLINES,
+    FX_FISHEYE,
+    FX_SOBEL,
+    FX_BLOOM,
+    FX_BLUR,
+    //FX_FXAA
+} PostproShader;
+
+static const char *postproShaderText[] = {
+    "GRAYSCALE",
+    "POSTERIZATION",
+    "DREAM_VISION",
+    "PIXELIZER",
+    "CROSS_HATCHING",
+    "CROSS_STITCHING",
+    "PREDATOR_VIEW",
+    "SCANLINES",
+    "FISHEYE",
+    "SOBEL",
+    "BLOOM",
+    "BLUR",
+    //"FXAA"
+};
+
+//------------------------------------------------------------------------------------
+// Program main entry point
+//------------------------------------------------------------------------------------
+int main(void)
+{
+    // Initialization
+    //--------------------------------------------------------------------------------------
+    const int screenWidth = 800;
+    const int screenHeight = 450;
+
+    SetConfigFlags(FLAG_MSAA_4X_HINT);      // Enable Multi Sampling Anti Aliasing 4x (if available)
+
+    InitWindow(screenWidth, screenHeight, "raylib [shaders] example - postprocessing shader");
+
+    // Define the camera to look into our 3d world
+    Camera camera = { 0 };
+    camera.position = (Vector3){ 2.0f, 3.0f, 2.0f };    // Camera position
+    camera.target = (Vector3){ 0.0f, 1.0f, 0.0f };      // Camera looking at point
+    camera.up = (Vector3){ 0.0f, 1.0f, 0.0f };          // Camera up vector (rotation towards target)
+    camera.fovy = 45.0f;                                // Camera field-of-view Y
+    camera.projection = CAMERA_PERSPECTIVE;             // Camera projection type
+
+    Model model = LoadModel("resources/models/church.obj");                 // Load OBJ model
+    Texture2D texture = LoadTexture("resources/models/church_diffuse.png"); // Load model texture (diffuse map)
+    model.materials[0].maps[MATERIAL_MAP_DIFFUSE].texture = texture;        // Set model diffuse texture
+
+    Vector3 position = { 0.0f, 0.0f, 0.0f };            // Set model position
+
+    // Load all postpro shaders
+    // NOTE 1: All postpro shader use the base vertex shader (DEFAULT_VERTEX_SHADER)
+    // NOTE 2: We load the correct shader depending on GLSL version
+    Shader shaders[MAX_POSTPRO_SHADERS] = { 0 };
+
+    // NOTE: Defining 0 (NULL) for vertex shader forces usage of internal default vertex shader
+    shaders[FX_GRAYSCALE] = LoadShader(0, TextFormat("resources/shaders/glsl%i/grayscale.fs", GLSL_VERSION));
+    shaders[FX_POSTERIZATION] = LoadShader(0, TextFormat("resources/shaders/glsl%i/posterization.fs", GLSL_VERSION));
+    shaders[FX_DREAM_VISION] = LoadShader(0, TextFormat("resources/shaders/glsl%i/dream_vision.fs", GLSL_VERSION));
+    shaders[FX_PIXELIZER] = LoadShader(0, TextFormat("resources/shaders/glsl%i/pixelizer.fs", GLSL_VERSION));
+    shaders[FX_CROSS_HATCHING] = LoadShader(0, TextFormat("resources/shaders/glsl%i/cross_hatching.fs", GLSL_VERSION));
+    shaders[FX_CROSS_STITCHING] = LoadShader(0, TextFormat("resources/shaders/glsl%i/cross_stitching.fs", GLSL_VERSION));
+    shaders[FX_PREDATOR_VIEW] = LoadShader(0, TextFormat("resources/shaders/glsl%i/predator.fs", GLSL_VERSION));
+    shaders[FX_SCANLINES] = LoadShader(0, TextFormat("resources/shaders/glsl%i/scanlines.fs", GLSL_VERSION));
+    shaders[FX_FISHEYE] = LoadShader(0, TextFormat("resources/shaders/glsl%i/fisheye.fs", GLSL_VERSION));
+    shaders[FX_SOBEL] = LoadShader(0, TextFormat("resources/shaders/glsl%i/sobel.fs", GLSL_VERSION));
+    shaders[FX_BLOOM] = LoadShader(0, TextFormat("resources/shaders/glsl%i/bloom.fs", GLSL_VERSION));
+    shaders[FX_BLUR] = LoadShader(0, TextFormat("resources/shaders/glsl%i/blur.fs", GLSL_VERSION));
+
+    int currentShader = FX_GRAYSCALE;
+
+    // Create a RenderTexture2D to be used for render to texture
+    RenderTexture2D target = LoadRenderTexture(screenWidth, screenHeight);
+
+    SetTargetFPS(60);                   // Set our game to run at 60 frames-per-second
+    //--------------------------------------------------------------------------------------
+
+    // Main game loop
+    while (!WindowShouldClose())        // Detect window close button or ESC key
+    {
+        // Update
+        //----------------------------------------------------------------------------------
+        UpdateCamera(&camera, CAMERA_ORBITAL);
+
+        if (IsKeyPressed(KEY_RIGHT)) currentShader++;
+        else if (IsKeyPressed(KEY_LEFT)) currentShader--;
+
+        if (currentShader >= MAX_POSTPRO_SHADERS) currentShader = 0;
+        else if (currentShader < 0) currentShader = MAX_POSTPRO_SHADERS - 1;
+        //----------------------------------------------------------------------------------
+
+        // Draw
+        //----------------------------------------------------------------------------------
+        BeginTextureMode(target);       // Enable drawing to texture
+            ClearBackground(RAYWHITE);  // Clear texture background
+
+            BeginMode3D(camera);        // Begin 3d mode drawing
+                DrawModel(model, position, 0.1f, WHITE);   // Draw 3d model with texture
+                DrawGrid(10, 1.0f);     // Draw a grid
+            EndMode3D();                // End 3d mode drawing, returns to orthographic 2d mode
+        EndTextureMode();               // End drawing to texture (now we have a texture available for next passes)
+        
+        BeginDrawing();
+            ClearBackground(RAYWHITE);  // Clear screen background
+
+            // Render generated texture using selected postprocessing shader
+            BeginShaderMode(shaders[currentShader]);
+                // NOTE: Render texture must be y-flipped due to default OpenGL coordinates (left-bottom)
+                DrawTextureRec(target.texture, (Rectangle){ 0, 0, (float)target.texture.width, (float)-target.texture.height }, (Vector2){ 0, 0 }, WHITE);
+            EndShaderMode();
+
+            // Draw 2d shapes and text over drawn texture
+            DrawRectangle(0, 9, 580, 30, Fade(LIGHTGRAY, 0.7f));
+
+            DrawText("(c) Church 3D model by Alberto Cano", screenWidth - 200, screenHeight - 20, 10, GRAY);
+            DrawText("CURRENT POSTPRO SHADER:", 10, 15, 20, BLACK);
+            DrawText(postproShaderText[currentShader], 330, 15, 20, RED);
+            DrawText("< >", 540, 10, 30, DARKBLUE);
+            DrawFPS(700, 15);
+        EndDrawing();
+        //----------------------------------------------------------------------------------
+    }
+
+    // De-Initialization
+    //--------------------------------------------------------------------------------------
+    // Unload all postpro shaders
+    for (int i = 0; i < MAX_POSTPRO_SHADERS; i++) UnloadShader(shaders[i]);
+
+    UnloadTexture(texture);         // Unload texture
+    UnloadModel(model);             // Unload model
+    UnloadRenderTexture(target);    // Unload render texture
+
+    CloseWindow();                  // Close window and OpenGL context
+    //--------------------------------------------------------------------------------------
+
+    return 0;
+}