v4k-git-backup/demos/09-shadertoy.c

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2023-09-27 06:49:59 +00:00
// shadertoy viewer
// - rlyeh, public domain
#include "v4k.h"
int main() {
window_create(75, 0); // WINDOW_MSAA8);
array(char*) list = 0;
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for each_array( vfs_list("demos/art/shadertoys/**.fs"), char*, dir ) {
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array_push(list, STRDUP(file_name(dir)));
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}
shadertoy_t sh = shadertoy(*list, 0); // 0:no flags
while(window_swap()) {
// selector
static int selected = 0;
int prev = input_down(KEY_UP) || input_down(KEY_LEFT);
int next = input_down(KEY_DOWN) || input_down(KEY_RIGHT);
if( prev ) if( selected > 0 ) sh = shadertoy( list[--selected], 0 );
if( next ) if( selected < array_count(list) - 1 ) sh = shadertoy( list[++selected], 0 );
// draw
shadertoy_render(&sh, window_delta());
// UI
if( ui_panel("Shadertoy", 1)) {
for( int i = 0; i < array_count(list); ++i ) {
bool in_use = i == selected;
if( ui_bool(list[i], &in_use) ) {
sh = shadertoy( list[selected = i], 0 );
}
}
ui_panel_end();
}
}
}