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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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 = [[ 1.0, 1.0, 1.0 ], [ 0.0, 0.0, 0.0 ], [ 0.0, 1.0, 0.0 ], 45.0, 0 ]
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# Load skybox model
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Mesh cube = GenMeshCube(1.0, 1.0, 1.0)
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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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# Load HDR panorama (sphere) texture
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Texture2D texHDR = LoadTexture("resources/dresden_square.hdr")
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# Generate cubemap (texture with 6 quads-cube-mapping) from panorama HDR texture
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# NOTE: New texture is generated rendering to texture, shader computes the sphre->cube coordinates mapping
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skybox.material.maps[MAP_CUBEMAP].texture = GenTextureCubemap(shdrCubemap, texHDR, 512)
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UnloadTexture(texHDR) # Texture not required anymore, cubemap already generated
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UnloadShader(shdrCubemap) # Unload cubemap generation shader, not required anymore
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SetCameraMode(camera, CAMERA_FIRST_PERSON) # Set a first person 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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BeginMode3D(camera)
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DrawModel(skybox, (Vector3)[0, 0, 0], 1.0, WHITE)
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DrawGrid(10, 1.0)
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EndMode3D()
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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 (and textures)
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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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