90 lines
3.6 KiB
C
90 lines
3.6 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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#include "raymath.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 and shader
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Mesh cube = GenMeshCube(1.0f, 1.0f, 1.0f);
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Model skybox = LoadModelFromMesh(cube, false);
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skybox.material.shader = LoadShader("resources/shaders/skybox.vs", "resources/shaders/skybox.fs");
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Texture2D texHDR = LoadTexture("resources/pinetree.hdr");
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skybox.material.maps[TEXMAP_CUBEMAP].tex = rlGenMapCubemap(texHDR, 512);
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SetShaderValuei(skybox.material.shader, GetShaderLocation(skybox.material.shader, "environmentMap"), (int[1]){ TEXMAP_CUBEMAP }, 1);
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// Get skybox shader locations
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skybox.material.shader.locs[LOC_MATRIX_PROJECTION] = GetShaderLocation(skybox.material.shader, "projection");
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skybox.material.shader.locs[LOC_MATRIX_VIEW] = GetShaderLocation(skybox.material.shader, "view");
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// Then before rendering, configure the viewport to the actual screen dimensions
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Matrix proj = MatrixPerspective(60.0, (double)GetScreenWidth()/(double)GetScreenHeight(), 0.01, 1000.0);
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MatrixTranspose(&proj);
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SetShaderValueMatrix(skybox.material.shader, skybox.material.shader.locs[LOC_MATRIX_PROJECTION], proj);
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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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Matrix view = MatrixLookAt(camera.position, camera.target, camera.up);
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SetShaderValueMatrix(skybox.material.shader, skybox.material.shader.locs[LOC_MATRIX_VIEW], view);
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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, VectorZero(), 1.0f, RED);
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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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