107 lines
4.6 KiB
C
107 lines
4.6 KiB
C
/*******************************************************************************************
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*
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* raylib [shaders] example - Model shader
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*
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* NOTE: This example requires raylib OpenGL 3.3 or ES2 versions for shaders support,
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* OpenGL 1.1 does not support shaders, recompile raylib to OpenGL 3.3 version.
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*
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* NOTE: Shaders used in this example are #version 330 (OpenGL 3.3), to test this example
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* on OpenGL ES 2.0 platforms (Android, Raspberry Pi, HTML5), use #version 100 shaders
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* raylib comes with shaders ready for both versions, check raylib/shaders install folder
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*
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* Example originally created with raylib 1.3, last time updated with raylib 3.7
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*
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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) 2014-2023 Ramon Santamaria (@raysan5)
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*
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********************************************************************************************/
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#include "raylib.h"
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#if defined(PLATFORM_DESKTOP)
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#define GLSL_VERSION 330
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#else // PLATFORM_RPI, PLATFORM_ANDROID, PLATFORM_WEB
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#define GLSL_VERSION 100
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#endif
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//------------------------------------------------------------------------------------
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// Program main entry point
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//------------------------------------------------------------------------------------
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int main(void)
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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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SetConfigFlags(FLAG_MSAA_4X_HINT); // Enable Multi Sampling Anti Aliasing 4x (if available)
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InitWindow(screenWidth, screenHeight, "raylib [shaders] example - model shader");
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// Define the camera to look into our 3d world
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Camera camera = { 0 };
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camera.position = (Vector3){ 4.0f, 4.0f, 4.0f }; // Camera position
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camera.target = (Vector3){ 0.0f, 1.0f, -1.0f }; // Camera looking at point
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camera.up = (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 = CAMERA_PERSPECTIVE; // Camera projection type
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Model model = LoadModel("resources/models/watermill.obj"); // Load OBJ model
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Texture2D texture = LoadTexture("resources/models/watermill_diffuse.png"); // Load model texture
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// Load shader for model
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// NOTE: Defining 0 (NULL) for vertex shader forces usage of internal default vertex shader
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Shader shader = LoadShader(0, TextFormat("resources/shaders/glsl%i/grayscale.fs", GLSL_VERSION));
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model.materials[0].shader = shader; // Set shader effect to 3d model
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model.materials[0].maps[MATERIAL_MAP_DIFFUSE].texture = texture; // Bind texture to model
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Vector3 position = { 0.0f, 0.0f, 0.0f }; // Set model position
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DisableCursor(); // Limit cursor to relative movement inside the window
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SetTargetFPS(60); // Set our game to run at 60 frames-per-second
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//--------------------------------------------------------------------------------------
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// Main game loop
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while (!WindowShouldClose()) // Detect window close button or ESC key
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{
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// Update
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//----------------------------------------------------------------------------------
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UpdateCamera(&camera, CAMERA_FIRST_PERSON);
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//----------------------------------------------------------------------------------
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// Draw
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//----------------------------------------------------------------------------------
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BeginDrawing();
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ClearBackground(RAYWHITE);
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BeginMode3D(camera);
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DrawModel(model, position, 0.2f, WHITE); // Draw 3d model with texture
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DrawGrid(10, 1.0f); // Draw a grid
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EndMode3D();
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DrawText("(c) Watermill 3D model by Alberto Cano", screenWidth - 210, screenHeight - 20, 10, GRAY);
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DrawFPS(10, 10);
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EndDrawing();
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//----------------------------------------------------------------------------------
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}
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// De-Initialization
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//--------------------------------------------------------------------------------------
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UnloadShader(shader); // Unload shader
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UnloadTexture(texture); // Unload texture
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UnloadModel(model); // Unload model
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CloseWindow(); // Close window and OpenGL context
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//--------------------------------------------------------------------------------------
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return 0;
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} |