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RAYMATH_EXTERN_INLINE was renamed to RAYMATH_HEADER_ONLY, which user code may define if they want to use it as header-only library. If multiple files in the same project define RAYMATH_HEADER_ONLY, they might each have duplicate out-of-line definitions of the same functions. By default, raymath.h exposes inline definitions, which instructs the compiler _not_ to generate out-of-line definitons, if out-of-line definitions are required, those of the file defined with RAYLIB_IMPLEMENTATION are used instead. There may be only one such file. In C++ mode, the compiler will select only one out-of-line definition automatically, so no need to define a RAYLIB_IMPLEMENTATION. Unfortunately, we have to remove raymath function declaration from raylib.h as those declarations would lead to duplicate out-of-line definitions which would yield linker errors. This problem didn't exist with GNU89 or C++, because there multiple defintions are ok, but in C99 they aren't.
86 lines
3.3 KiB
C
86 lines
3.3 KiB
C
/*******************************************************************************************
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*
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* raylib [models] example - Skybox loading and drawing
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*
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* This example has been created using raylib 1.8 (www.raylib.com)
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* raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
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*
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* Copyright (c) 2017 Ramon Santamaria (@raysan5)
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*
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********************************************************************************************/
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#include "raylib.h"
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int main()
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{
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// Initialization
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//--------------------------------------------------------------------------------------
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int screenWidth = 800;
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int screenHeight = 450;
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InitWindow(screenWidth, screenHeight, "raylib [models] example - skybox loading and drawing");
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// Define the camera to look into our 3d world
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Camera camera = {{ 1.0f, 1.0f, 1.0f }, { 0.0f, 0.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f };
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// Load skybox model
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Mesh cube = GenMeshCube(1.0f, 1.0f, 1.0f);
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Model skybox = LoadModelFromMesh(cube);
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// Load skybox shader and set required locations
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// NOTE: Some locations are automatically set at shader loading
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skybox.material.shader = LoadShader("resources/shaders/skybox.vs", "resources/shaders/skybox.fs");
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SetShaderValuei(skybox.material.shader, GetShaderLocation(skybox.material.shader, "environmentMap"), (int[1]){ MAP_CUBEMAP }, 1);
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// Load cubemap shader and setup required shader locations
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Shader shdrCubemap = LoadShader("resources/shaders/cubemap.vs", "resources/shaders/cubemap.fs");
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SetShaderValuei(shdrCubemap, GetShaderLocation(shdrCubemap, "equirectangularMap"), (int[1]){ 0 }, 1);
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Texture2D texHDR = LoadTexture("resources/pinetree.hdr");
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skybox.material.maps[MAP_CUBEMAP].texture = GenTextureCubemap(shdrCubemap, texHDR, 512);
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UnloadShader(shdrCubemap); // Cubemap generation shader not required any more
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SetCameraMode(camera, CAMERA_ORBITAL); // Set an orbital camera mode
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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); // Update camera
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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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Begin3dMode(camera);
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DrawModel(skybox, (Vector3){0, 0, 0}, 1.0f, WHITE);
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DrawGrid(10, 1.0f);
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End3dMode();
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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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UnloadModel(skybox); // Unload skybox 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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}
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