raylib/ports/models/models_loading_iqm

Source

models_loading_iqm.odin ¶

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1/*******************************************************************************************
2*
3*   raylib [models] example - loading iqm
4*
5*   Example complexity rating: [★★☆☆] 2/4
6*
7*   Example originally created with raylib 2.5, last time updated with raylib 3.5
8*
9*   Example contributed by Culacant (@culacant) and reviewed by Ramon Santamaria (@raysan5)
10*
11*   Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,
12*   BSD-like license that allows static linking with closed source software
13*
14*   Copyright (c) 2019-2025 Culacant (@culacant) and Ramon Santamaria (@raysan5)
15*
16********************************************************************************************
17*
18*   NOTE: To export a model from blender, make sure it is not posed, the vertices need to be
19*         in the same position as they would be in edit mode and the scale of your models is
20*         set to 0. Scaling can be done from the export menu
21*
22********************************************************************************************/
23
24package raylib_examples
25
26import rl "vendor:raylib"
27
28//------------------------------------------------------------------------------------
29// Program main entry point
30//------------------------------------------------------------------------------------
31main :: proc() {
32    // Initialization
33    //--------------------------------------------------------------------------------------
34	SCREEN_WIDTH :: 800
35	SCREEN_HEIGHT :: 450
36
37	rl.InitWindow(SCREEN_WIDTH, SCREEN_HEIGHT, "raylib [models] example - loading iqm")
38
39    // Define the camera to look into our 3d world
40	camera := rl.Camera { 
41    	position = { 10.0, 10.0, 10.0 }, // Camera position
42    	target = { 0.0, 0.0, 0.0 },      // Camera looking at point
43    	up = { 0.0, 1.0, 0.0 },          // Camera up vector (rotation towards target)
44		fovy = 45.0,                     // Camera field-of-view Y
45    	projection = .PERSPECTIVE,       // Camera mode type
46	}
47
48	model := rl.LoadModel("resources/models/iqm/guy.iqm")            // Load the animated model mesh and basic data
49	texture := rl.LoadTexture("resources/models/iqm/guytex.png")     // Load model texture and set material
50	rl.SetMaterialTexture(&model.materials[0], .ALBEDO, texture)     // Set model material map texture
51
52	position := rl.Vector3{ 0.0, 0.0, 0.0 }            // Set model position
53
54    // Load animation data
55	animsCount: i32
56	anims := rl.LoadModelAnimations("resources/models/iqm/guyanim.iqm", &animsCount)
57	animFrameCounter: f32
58
59	rl.DisableCursor()                    // Catch cursor
60	rl.SetTargetFPS(60)                   // Set our game to run at 60 frames-per-second
61    //--------------------------------------------------------------------------------------
62
63    // Main game loop
64	for !rl.WindowShouldClose() {        // Detect window close button or ESC key
65        // Update
66        //----------------------------------------------------------------------------------
67		rl.UpdateCamera(&camera, .ORBITAL)
68
69		animFrameCounter += 1
70		rl.UpdateModelAnimation(model, anims[0], animFrameCounter)
71		if animFrameCounter >= f32(anims[0].keyframeCount) {
72			animFrameCounter = 0
73		}
74
75        //----------------------------------------------------------------------------------
76
77        // Draw
78        //----------------------------------------------------------------------------------
79		rl.BeginDrawing()
80
81			rl.ClearBackground(rl.RAYWHITE)
82
83			rl.BeginMode3D(camera)
84
85				rl.DrawModelEx(model, position, { 1.0, 0.0, 0.0 }, -90.0, { 1.0, 1.0, 1.0 }, rl.WHITE)
86
87				for i := 0; i < int(model.skeleton.boneCount); i += 1 {
88					// rl.DrawCube(anims[0].keyframePoses[i32(animFrameCounter)][i].translation, 0.2, 0.2, 0.2, rl.RED)
89                }
90
91				rl.DrawGrid(10, 1.0)         // Draw a grid
92
93			rl.EndMode3D()
94
95			rl.DrawText("PRESS SPACE to PLAY MODEL ANIMATION", 10, 10, 20, rl.MAROON)
96			rl.DrawText("(c) Guy IQM 3D model by @culacant", SCREEN_WIDTH - 200, SCREEN_HEIGHT - 20, 10, rl.GRAY)
97
98		rl.EndDrawing()
99        //----------------------------------------------------------------------------------
100    }
101
102    // De-Initialization
103    //--------------------------------------------------------------------------------------
104	rl.UnloadTexture(texture)                     // Unload texture
105	rl.UnloadModelAnimations(anims, animsCount)   // Unload model animations data
106	rl.UnloadModel(model)                         // Unload model
107
108	rl.CloseWindow()                  // Close window and OpenGL context
109    //--------------------------------------------------------------------------------------
110}