80486DX2-66/taisei
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revamp stagetext effect

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Andrei Alexeyev 2018-07-25 01:33:01 +03:00
parent 2237b43fbc
commit 09eb5e8814
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GPG key ID: 363707CD4C7FE8A4
3 changed files with 16 additions and 6 deletions
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9
resources/shader/text_stagetext.frag.glsl
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@ -12,14 +12,13 @@ void main(void) {
float t = customParams.r;
vec2 tc = texCoord;
vec2 tc_overlay = texCoordOverlay;
vec2 f = tc_overlay - vec2(0.5);
tc *= dimensions;
tc += 5 * f * sin(10 * (length(f) + t)) * (1 - t);
tc.x += sin(tc.y * 0.25 * (1 - pow(1 - t, 2))) * 2 * pow(1 - t, 1);
tc.y += cos(tc.x * 0.25 * (1 - pow(1 - t, 2)) + pow(1 - t, 2) * pi * 2) * -2 * pow(1 - t, 0.5);
tc /= dimensions;
float a = tc_mask(tc);
vec4 textfrag = color * texture(tex, uv_to_region(texRegion, tc)).r * a;
tc -= vec2(1) / dimensions;
@ -30,6 +29,8 @@ void main(void) {
fragColor = textfrag;
fragColor = mix(shadowfrag, textfrag, sqrt(textfrag.a));
tc_overlay = clamp(tc_overlay,0.01,0.99); // The overlay coordinates are outside of [0,1] in the padding region, so we make sure there are no wrap around artifacts when a bit of text is distorted to this region.
// The overlay coordinates are outside of [0,1] in the padding region, so we make sure there are no wrap around artifacts when a bit of text is distorted to this region.
tc_overlay = clamp(tc_overlay, 0.01, 0.99);
fragColor *= clamp((texture(tex_aux[0], tc_overlay).r + 0.5) * 2.5 * t-0.5, 0.0, 1.0);
}

1
src/menu/mainmenu.c
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@ -184,6 +184,7 @@ void draw_main_menu(MenuData *menu) {
.pos = { SCREEN_W-5, SCREEN_H-10 },
.font = "small",
});
r_shader_standard();
}

12
src/stagetext.c
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@ -69,6 +69,14 @@ static void stagetext_draw_single(StageText *txt) {
int t = global.frames - txt->time.spawn;
float f = 1.0 - clamp((txt->time.life - t) / (float)txt->time.fadeout, 0, clamp(t / (float)txt->time.fadein, 0, 1));
float ofs_x, ofs_y;
if(txt->time.life - t < txt->time.fadeout) {
ofs_y = 10 * pow(f, 2);
ofs_x = 0;
} else {
ofs_x = ofs_y = 10 * pow(f, 2);
}
if(txt->custom.predraw) {
txt->custom.predraw(txt, t, 1.0 - f);
@ -81,8 +89,8 @@ static void stagetext_draw_single(StageText *txt) {
params.shader_ptr = r_shader_get("text_stagetext");
params.shader_params = &(ShaderCustomParams){{ 1 - f }},
params.aux_textures[0] = get_tex("titletransition");
params.pos.x = creal(txt->pos)+10*f*f;
params.pos.y = cimag(txt->pos)+10*f*f;
params.pos.x = creal(txt->pos) + ofs_x;
params.pos.y = cimag(txt->pos) + ofs_y;
params.color = &txt->color;
text_draw(txt->text, &params);