97 lines
3.7 KiB
C
97 lines
3.7 KiB
C
/*******************************************************************************************
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*
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* raylib [models] example - Show the difference between perspective and orthographic projection
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*
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* This program is heavily based on the geometric objects example
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*
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* This example has been created using raylib 1.9.7 (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) 2018 Max Danielsson & Ramon Santamaria (@raysan5)
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*
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********************************************************************************************/
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#include "raylib.h"
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#define FOVY_PERSPECTIVE 45.0
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#define WIDTH_ORTHOGRAPHIC 10.0
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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 - geometric shapes")
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# Define the camera to look into our 3d world
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Camera camera = [[ 0.0, 10.0, 10.0 ], [ 0.0, 0.0, 0.0 ], [ 0.0, 1.0, 0.0 ], FOVY_PERSPECTIVE, CAMERA_PERSPECTIVE ]
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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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if (IsKeyPressed(KEY_SPACE))
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[
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if (camera.type == CAMERA_PERSPECTIVE)
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[
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camera.fovy = WIDTH_ORTHOGRAPHIC
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camera.type = CAMERA_ORTHOGRAPHIC
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]
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else
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[
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camera.fovy = FOVY_PERSPECTIVE
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camera.type = CAMERA_PERSPECTIVE
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]
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]
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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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DrawCube((Vector3)[-4.0, 0.0, 2.0], 2.0, 5.0, 2.0, RED)
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DrawCubeWires((Vector3)[-4.0, 0.0, 2.0], 2.0, 5.0, 2.0, GOLD)
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DrawCubeWires((Vector3)[-4.0, 0.0, -2.0], 3.0, 6.0, 2.0, MAROON)
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DrawSphere((Vector3)[-1.0, 0.0, -2.0], 1.0, GREEN)
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DrawSphereWires((Vector3)[1.0, 0.0, 2.0], 2.0, 16, 16, LIME)
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DrawCylinder((Vector3)[4.0, 0.0, -2.0], 1.0, 2.0, 3.0, 4, SKYBLUE)
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DrawCylinderWires((Vector3)[4.0, 0.0, -2.0], 1.0, 2.0, 3.0, 4, DARKBLUE)
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DrawCylinderWires((Vector3)[4.5f, -1.0, 2.0], 1.0, 1.0, 2.0, 6, BROWN)
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DrawCylinder((Vector3)[1.0, 0.0, -4.0], 0.0, 1.5f, 3.0, 8, GOLD)
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DrawCylinderWires((Vector3)[1.0, 0.0, -4.0], 0.0, 1.5f, 3.0, 8, PINK)
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DrawGrid(10, 1.0) # Draw a grid
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EndMode3D()
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DrawText("Press Spacebar to switch camera type", 10, GetScreenHeight() - 30, 20, DARKGRAY)
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if (camera.type == CAMERA_ORTHOGRAPHIC) DrawText("ORTHOGRAPHIC", 10, 40, 20, BLACK)
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else if (camera.type == CAMERA_PERSPECTIVE) DrawText("PERSPECTIVE", 10, 40, 20, BLACK)
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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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CloseWindow() # Close window and OpenGL context
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#--------------------------------------------------------------------------------------
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return 0
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]
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