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 regels
4.2 KiB
121 regels
4.2 KiB
/*******************************************************************************************
|
|
*
|
|
* raylib [shaders] example - Vertex displacement
|
|
*
|
|
* Example complexity rating: [★★★☆] 3/4
|
|
*
|
|
* Example originally created with raylib 5.0, last time updated with raylib 4.5
|
|
*
|
|
* Example contributed by Alex ZH (@ZzzhHe) 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) 2023-2025 Alex ZH (@ZzzhHe)
|
|
*
|
|
********************************************************************************************/
|
|
|
|
#include "raylib.h"
|
|
|
|
#include "rlgl.h"
|
|
|
|
#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;
|
|
|
|
InitWindow(screenWidth, screenHeight, "raylib [shaders] example - vertex displacement");
|
|
|
|
// set up camera
|
|
Camera camera = {0};
|
|
camera.position = (Vector3) {20.0f, 5.0f, -20.0f};
|
|
camera.target = (Vector3) {0.0f, 0.0f, 0.0f};
|
|
camera.up = (Vector3) {0.0f, 1.0f, 0.0f};
|
|
camera.fovy = 60.0f;
|
|
camera.projection = CAMERA_PERSPECTIVE;
|
|
|
|
// Load vertex and fragment shaders
|
|
Shader shader = LoadShader(
|
|
TextFormat("resources/shaders/glsl%i/vertex_displacement.vs", GLSL_VERSION),
|
|
TextFormat("resources/shaders/glsl%i/vertex_displacement.fs", GLSL_VERSION));
|
|
|
|
// Load perlin noise texture
|
|
Image perlinNoiseImage = GenImagePerlinNoise(512, 512, 0, 0, 1.0f);
|
|
Texture perlinNoiseMap = LoadTextureFromImage(perlinNoiseImage);
|
|
UnloadImage(perlinNoiseImage);
|
|
|
|
// Set shader uniform location
|
|
int perlinNoiseMapLoc = GetShaderLocation(shader, "perlinNoiseMap");
|
|
rlEnableShader(shader.id);
|
|
rlActiveTextureSlot(1);
|
|
rlEnableTexture(perlinNoiseMap.id);
|
|
rlSetUniformSampler(perlinNoiseMapLoc, 1);
|
|
|
|
// Create a plane mesh and model
|
|
Mesh planeMesh = GenMeshPlane(50, 50, 50, 50);
|
|
Model planeModel = LoadModelFromMesh(planeMesh);
|
|
// Set plane model material
|
|
planeModel.materials[0].shader = shader;
|
|
|
|
float time = 0.0f;
|
|
|
|
SetTargetFPS(60);
|
|
//--------------------------------------------------------------------------------------
|
|
|
|
// Main game loop
|
|
while (!WindowShouldClose()) // Detect window close button or ESC key
|
|
{
|
|
// Update
|
|
//----------------------------------------------------------------------------------
|
|
UpdateCamera(&camera, CAMERA_FREE); // Update camera
|
|
|
|
time += GetFrameTime(); // Update time variable
|
|
SetShaderValue(shader, GetShaderLocation(shader, "time"), &time, SHADER_UNIFORM_FLOAT); // Send time value to shader
|
|
|
|
// Draw
|
|
//----------------------------------------------------------------------------------
|
|
BeginDrawing();
|
|
|
|
ClearBackground(RAYWHITE);
|
|
|
|
BeginMode3D(camera);
|
|
|
|
BeginShaderMode(shader);
|
|
// Draw plane model
|
|
DrawModel(planeModel, (Vector3){ 0.0f, 0.0f, 0.0f }, 1.0f, (Color) {255, 255, 255, 255});
|
|
EndShaderMode();
|
|
|
|
EndMode3D();
|
|
|
|
DrawText("Vertex displacement", 10, 10, 20, DARKGRAY);
|
|
DrawFPS(10, 40);
|
|
|
|
EndDrawing();
|
|
//----------------------------------------------------------------------------------
|
|
}
|
|
|
|
// De-Initialization
|
|
//--------------------------------------------------------------------------------------
|
|
UnloadShader(shader);
|
|
UnloadModel(planeModel);
|
|
UnloadTexture(perlinNoiseMap);
|
|
|
|
CloseWindow(); // Close window and OpenGL context
|
|
//--------------------------------------------------------------------------------------
|
|
|
|
return 0;
|
|
}
|