1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
/*******************************************************************************************
*
* raylib [shaders] example - Apply an outline to a texture
*
* NOTE: This example requires raylib OpenGL 3.3 or ES2 versions for shaders support,
* OpenGL 1.1 does not support shaders, recompile raylib to OpenGL 3.3 version.
*
* NOTE: Shaders used in this example are #version 330 (OpenGL 3.3).
*
* This example has been created using raylib 3.8 (www.raylib.com)
* raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
*
* Example contributed by Samuel Skiff (@GoldenThumbs)
*
* Copyright (c) 2021 Samuel SKiff (@GoldenThumbs) and Ramon Santamaria (@raysan5)
*
********************************************************************************************/
#include "raylib.h"
#if defined(PLATFORM_DESKTOP)
#define GLSL_VERSION 330
#else // PLATFORM_RPI, PLATFORM_ANDROID, PLATFORM_WEB
#define GLSL_VERSION 100
#endif
int main(void)
{
// Initialization
//--------------------------------------------------------------------------------------
const int screenWidth = 800;
const int screenHeight = 450;
InitWindow(screenWidth, screenHeight, "raylib [shaders] example - Apply an outline to a texture");
Texture2D egg = LoadTexture("resources/egg.png");
Texture2D torus = LoadTexture("resources/torus.png");
Shader outline = LoadShader(0, TextFormat("resources/shaders/glsl%i/outline.fs", GLSL_VERSION));
float oScale = 16.0;
float tScale[2] = { 16.0f*4, 16.0f*4 };
SetShaderValue(outline, GetShaderLocation(outline, "texScale"), tScale, SHADER_UNIFORM_VEC2);
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
//----------------------------------------------------------------------------------
// TODO: Update your variables here
//----------------------------------------------------------------------------------
// Draw
//----------------------------------------------------------------------------------
BeginDrawing();
ClearBackground(RAYWHITE);
BeginShaderMode(outline);
DrawTextureEx(egg, (Vector2){ 0, 230 }, 0.0, oScale, WHITE);
DrawTextureEx(torus, (Vector2){ 544, 230 }, 0.0, oScale, WHITE);
EndShaderMode();
DrawText("Shader-based outlines for textures", 190, 200, 20, LIGHTGRAY);
DrawFPS(710, 10);
EndDrawing();
//----------------------------------------------------------------------------------
}
// De-Initialization
//--------------------------------------------------------------------------------------
UnloadTexture(egg);
UnloadTexture(torus);
UnloadShader(outline);
CloseWindow(); // Close window and OpenGL context
//--------------------------------------------------------------------------------------
return 0;
}
|
