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.
205 lines
7.6 KiB
205 lines
7.6 KiB
/*******************************************************************************************
|
|
*
|
|
* raylib [models] example - Load models vox (MagicaVoxel)
|
|
*
|
|
* Example originally created with raylib 4.0, last time updated with raylib 4.0
|
|
*
|
|
* Example contributed by Johann Nadalutti (@procfxgen) 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) 2021-2024 Johann Nadalutti (@procfxgen) and Ramon Santamaria (@raysan5)
|
|
*
|
|
********************************************************************************************/
|
|
|
|
#include "raylib.h"
|
|
|
|
#include "raymath.h" // Required for: MatrixTranslate()
|
|
|
|
#define MAX_VOX_FILES 4
|
|
|
|
#define RLIGHTS_IMPLEMENTATION
|
|
#include "rlights.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;
|
|
|
|
const char* voxFileNames[] = {
|
|
"resources/models/vox/chr_knight.vox",
|
|
"resources/models/vox/chr_sword.vox",
|
|
"resources/models/vox/monu9.vox",
|
|
"resources/models/vox/fez.vox"
|
|
};
|
|
|
|
InitWindow(screenWidth, screenHeight, "raylib [models] example - magicavoxel loading");
|
|
|
|
// Define the camera to look into our 3d world
|
|
Camera camera = { 0 };
|
|
camera.position = (Vector3){ 10.0f, 10.0f, 10.0f }; // Camera position
|
|
camera.target = (Vector3){ 0.0f, 0.0f, 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 MagicaVoxel files
|
|
Model models[MAX_VOX_FILES] = { 0 };
|
|
|
|
for (int i = 0; i < MAX_VOX_FILES; i++)
|
|
{
|
|
// Load VOX file and measure time
|
|
double t0 = GetTime() * 1000.0;
|
|
models[i] = LoadModel(voxFileNames[i]);
|
|
double t1 = GetTime() * 1000.0;
|
|
|
|
TraceLog(LOG_WARNING, TextFormat("[%s] File loaded in %.3f ms", voxFileNames[i], t1 - t0));
|
|
|
|
// Compute model translation matrix to center model on draw position (0, 0 , 0)
|
|
BoundingBox bb = GetModelBoundingBox(models[i]);
|
|
Vector3 center = { 0 };
|
|
center.x = bb.min.x + (((bb.max.x - bb.min.x) / 2));
|
|
center.z = bb.min.z + (((bb.max.z - bb.min.z) / 2));
|
|
|
|
Matrix matTranslate = MatrixTranslate(-center.x, 0, -center.z);
|
|
models[i].transform = matTranslate;
|
|
}
|
|
|
|
int currentModel = 0;
|
|
|
|
//--------------------------------------------------------------------------------------
|
|
// Load voxel shader
|
|
Shader shader = LoadShader(TextFormat("resources/shaders/glsl%i/voxel_lighting.vs", GLSL_VERSION),
|
|
TextFormat("resources/shaders/glsl%i/voxel_lighting.fs", GLSL_VERSION));
|
|
|
|
// Get some required shader locations
|
|
shader.locs[SHADER_LOC_VECTOR_VIEW] = GetShaderLocation(shader, "viewPos");
|
|
// NOTE: "matModel" location name is automatically assigned on shader loading,
|
|
// no need to get the location again if using that uniform name
|
|
//shader.locs[SHADER_LOC_MATRIX_MODEL] = GetShaderLocation(shader, "matModel");
|
|
|
|
// Ambient light level (some basic lighting)
|
|
int ambientLoc = GetShaderLocation(shader, "ambient");
|
|
SetShaderValue(shader, ambientLoc, (float[4]) { 0.1f, 0.1f, 0.1f, 1.0f }, SHADER_UNIFORM_VEC4);
|
|
|
|
// Assign out lighting shader to model
|
|
for (int i = 0; i < MAX_VOX_FILES; i++)
|
|
{
|
|
Model m = models[i];
|
|
for (int j = 0; j < m.materialCount; j++)
|
|
{
|
|
m.materials[j].shader = shader;
|
|
}
|
|
}
|
|
|
|
// Create lights
|
|
Light lights[MAX_LIGHTS] = { 0 };
|
|
lights[0] = CreateLight(LIGHT_POINT, (Vector3) { -20, 20, -20 }, Vector3Zero(), GRAY, shader);
|
|
lights[1] = CreateLight(LIGHT_POINT, (Vector3) { 20, -20, 20 }, Vector3Zero(), GRAY, shader);
|
|
lights[2] = CreateLight(LIGHT_POINT, (Vector3) { -20, 20, 20 }, Vector3Zero(), GRAY, shader);
|
|
lights[3] = CreateLight(LIGHT_POINT, (Vector3) { 20, -20, -20 }, Vector3Zero(), GRAY, shader);
|
|
|
|
|
|
SetTargetFPS(60); // Set our game to run at 60 frames-per-second
|
|
|
|
//--------------------------------------------------------------------------------------
|
|
Vector3 modelpos = { 0 };
|
|
Vector3 camerarot = { 0 };
|
|
|
|
// Main game loop
|
|
while (!WindowShouldClose()) // Detect window close button or ESC key
|
|
{
|
|
// Update
|
|
//----------------------------------------------------------------------------------
|
|
if (IsMouseButtonDown(MOUSE_BUTTON_MIDDLE))
|
|
{
|
|
const Vector2 mouseDelta = GetMouseDelta();
|
|
camerarot.x = mouseDelta.x * 0.05f;
|
|
camerarot.y = mouseDelta.y * 0.05f;
|
|
}
|
|
else
|
|
{
|
|
camerarot.x = 0;
|
|
camerarot.y = 0;
|
|
}
|
|
|
|
UpdateCameraPro(&camera,
|
|
(Vector3) {
|
|
(IsKeyDown(KEY_W) || IsKeyDown(KEY_UP)) * 0.1f - // Move forward-backward
|
|
(IsKeyDown(KEY_S) || IsKeyDown(KEY_DOWN)) * 0.1f,
|
|
(IsKeyDown(KEY_D) || IsKeyDown(KEY_RIGHT)) * 0.1f - // Move right-left
|
|
(IsKeyDown(KEY_A) || IsKeyDown(KEY_LEFT)) * 0.1f,
|
|
0.0f // Move up-down
|
|
},
|
|
camerarot,
|
|
GetMouseWheelMove() * -2.0f); // Move to target (zoom)
|
|
|
|
// Cycle between models on mouse click
|
|
if (IsMouseButtonPressed(MOUSE_BUTTON_LEFT)) currentModel = (currentModel + 1) % MAX_VOX_FILES;
|
|
|
|
// Update the shader with the camera view vector (points towards { 0.0f, 0.0f, 0.0f })
|
|
float cameraPos[3] = { camera.position.x, camera.position.y, camera.position.z };
|
|
SetShaderValue(shader, shader.locs[SHADER_LOC_VECTOR_VIEW], cameraPos, SHADER_UNIFORM_VEC3);
|
|
|
|
// Update light values (actually, only enable/disable them)
|
|
for (int i = 0; i < MAX_LIGHTS; i++) UpdateLightValues(shader, lights[i]);
|
|
|
|
//----------------------------------------------------------------------------------
|
|
// Draw
|
|
//----------------------------------------------------------------------------------
|
|
BeginDrawing();
|
|
|
|
ClearBackground(RAYWHITE);
|
|
|
|
// Draw 3D model
|
|
BeginMode3D(camera);
|
|
|
|
DrawModel(models[currentModel], modelpos, 1.0f, WHITE);
|
|
DrawGrid(10, 1.0);
|
|
|
|
// Draw spheres to show where the lights are
|
|
for (int i = 0; i < MAX_LIGHTS; i++)
|
|
{
|
|
if (lights[i].enabled) DrawSphereEx(lights[i].position, 0.2f, 8, 8, lights[i].color);
|
|
else DrawSphereWires(lights[i].position, 0.2f, 8, 8, ColorAlpha(lights[i].color, 0.3f));
|
|
}
|
|
|
|
EndMode3D();
|
|
|
|
// Display info
|
|
DrawRectangle(10, 400, 340, 60, Fade(SKYBLUE, 0.5f));
|
|
DrawRectangleLines(10, 400, 340, 60, Fade(DARKBLUE, 0.5f));
|
|
DrawText("MOUSE LEFT BUTTON to CYCLE VOX MODELS", 40, 410, 10, BLUE);
|
|
DrawText("MOUSE MIDDLE BUTTON to ZOOM OR ROTATE CAMERA", 40, 420, 10, BLUE);
|
|
DrawText("UP-DOWN-LEFT-RIGHT KEYS to MOVE CAMERA", 40, 430, 10, BLUE);
|
|
DrawText(TextFormat("File: %s", GetFileName(voxFileNames[currentModel])), 10, 10, 20, GRAY);
|
|
|
|
EndDrawing();
|
|
//----------------------------------------------------------------------------------
|
|
}
|
|
|
|
// De-Initialization
|
|
//--------------------------------------------------------------------------------------
|
|
// Unload models data (GPU VRAM)
|
|
for (int i = 0; i < MAX_VOX_FILES; i++) UnloadModel(models[i]);
|
|
|
|
CloseWindow(); // Close window and OpenGL context
|
|
//--------------------------------------------------------------------------------------
|
|
|
|
return 0;
|
|
}
|
|
|
|
|