You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
121 lines
5.0 KiB
121 lines
5.0 KiB
/*******************************************************************************************
|
|
*
|
|
* raylib [models] example - animation gpu skinning
|
|
*
|
|
* Example complexity rating: [★★★☆] 3/4
|
|
*
|
|
* Example originally created with raylib 4.5, last time updated with raylib 4.5
|
|
*
|
|
* Example contributed by Daniel Holden (@orangeduck) and reviewed by Ramon Santamaria (@raysan5)
|
|
*
|
|
* Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,
|
|
* BSD-like license that allows static linking with closed source software
|
|
*
|
|
* Copyright (c) 2024-2025 Daniel Holden (@orangeduck)
|
|
*
|
|
* Note: Due to limitations in the Apple OpenGL driver, this feature does not work on MacOS
|
|
*
|
|
********************************************************************************************/
|
|
|
|
#include "raylib.h"
|
|
|
|
#include "raymath.h"
|
|
|
|
#if defined(PLATFORM_DESKTOP)
|
|
#define GLSL_VERSION 330
|
|
#else // PLATFORM_ANDROID, PLATFORM_WEB
|
|
#define GLSL_VERSION 100
|
|
#endif
|
|
|
|
//------------------------------------------------------------------------------------
|
|
// Program main entry point
|
|
//------------------------------------------------------------------------------------
|
|
int main(void)
|
|
{
|
|
// Initialization
|
|
//--------------------------------------------------------------------------------------
|
|
const int screenWidth = 800;
|
|
const int screenHeight = 450;
|
|
|
|
InitWindow(screenWidth, screenHeight, "raylib [models] example - animation gpu skinning");
|
|
|
|
// Define the camera to look into our 3d world
|
|
Camera camera = { 0 };
|
|
camera.position = (Vector3){ 5.0f, 5.0f, 5.0f }; // Camera position
|
|
camera.target = (Vector3){ 0.0f, 2.0f, 0.0f }; // Camera looking at point
|
|
camera.up = (Vector3){ 0.0f, 1.0f, 0.0f }; // Camera up vector (rotation towards target)
|
|
camera.fovy = 45.0f; // Camera field-of-view Y
|
|
camera.projection = CAMERA_PERSPECTIVE; // Camera projection type
|
|
|
|
// Load gltf model
|
|
Model characterModel = LoadModel("resources/models/gltf/greenman.glb"); // Load character model
|
|
|
|
// Load skinning shader
|
|
Shader skinningShader = LoadShader(TextFormat("resources/shaders/glsl%i/skinning.vs", GLSL_VERSION),
|
|
TextFormat("resources/shaders/glsl%i/skinning.fs", GLSL_VERSION));
|
|
|
|
characterModel.materials[1].shader = skinningShader;
|
|
|
|
// Load gltf model animations
|
|
int animsCount = 0;
|
|
unsigned int animIndex = 0;
|
|
unsigned int animCurrentFrame = 0;
|
|
ModelAnimation *modelAnimations = LoadModelAnimations("resources/models/gltf/greenman.glb", &animsCount);
|
|
|
|
Vector3 position = { 0.0f, 0.0f, 0.0f }; // Set model position
|
|
|
|
DisableCursor(); // Limit cursor to relative movement inside the window
|
|
|
|
SetTargetFPS(60); // Set our game to run at 60 frames-per-second
|
|
//--------------------------------------------------------------------------------------
|
|
|
|
// Main game loop
|
|
while (!WindowShouldClose()) // Detect window close button or ESC key
|
|
{
|
|
// Update
|
|
//----------------------------------------------------------------------------------
|
|
UpdateCamera(&camera, CAMERA_THIRD_PERSON);
|
|
|
|
// Select current animation
|
|
if (IsKeyPressed(KEY_T)) animIndex = (animIndex + 1)%animsCount;
|
|
else if (IsKeyPressed(KEY_G)) animIndex = (animIndex + animsCount - 1)%animsCount;
|
|
|
|
// Update model animation
|
|
ModelAnimation anim = modelAnimations[animIndex];
|
|
animCurrentFrame = (animCurrentFrame + 1)%anim.frameCount;
|
|
characterModel.transform = MatrixTranslate(position.x, position.y, position.z);
|
|
UpdateModelAnimationBones(characterModel, anim, animCurrentFrame);
|
|
//----------------------------------------------------------------------------------
|
|
|
|
// Draw
|
|
//----------------------------------------------------------------------------------
|
|
BeginDrawing();
|
|
|
|
ClearBackground(RAYWHITE);
|
|
|
|
BeginMode3D(camera);
|
|
|
|
// Draw character mesh, pose calculation is done in shader (GPU skinning)
|
|
DrawMesh(characterModel.meshes[0], characterModel.materials[1], characterModel.transform);
|
|
|
|
DrawGrid(10, 1.0f);
|
|
|
|
EndMode3D();
|
|
|
|
DrawText("Use the T/G to switch animation", 10, 10, 20, GRAY);
|
|
|
|
EndDrawing();
|
|
//----------------------------------------------------------------------------------
|
|
}
|
|
|
|
// De-Initialization
|
|
//--------------------------------------------------------------------------------------
|
|
UnloadModelAnimations(modelAnimations, animsCount); // Unload model animation
|
|
UnloadModel(characterModel); // Unload model and meshes/material
|
|
UnloadShader(skinningShader); // Unload GPU skinning shader
|
|
|
|
CloseWindow(); // Close window and OpenGL context
|
|
//--------------------------------------------------------------------------------------
|
|
|
|
return 0;
|
|
}
|