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checkbox and msdf sprite rendering

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This commit is contained in:
Alessandro Mauri 2025-02-04 22:40:44 +01:00
parent 14359a9b7e
commit 588a417413
6 changed files with 91 additions and 29 deletions
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54
src/main.c3
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@ -44,6 +44,35 @@ fn TimeStats Times.get_stats(&times)
}
const ZString MSDF_FS = `
#version 330
in vec2 fragTexCoord;
out vec4 fragColor;
uniform sampler2D texture0;
uniform vec4 colDiffuse;
const float pxRange = 4.0f;
float screenPxRange() {
vec2 unitRange = vec2(pxRange)/vec2(textureSize(texture0, 0));
vec2 screenTexSize = vec2(1.0)/fwidth(fragTexCoord);
return max(0.5*dot(unitRange, screenTexSize), 1.0);
}
float median(float r, float g, float b) {
return max(min(r, g), min(max(r, g), b));
}
void main() {
vec3 msd = texture(texture0, fragTexCoord).rgb;
float sd = median(msd.r, msd.g, msd.b);
float screenPxDistance = screenPxRange()*(sd - 0.5);
float opacity = clamp(screenPxDistance + 0.5, 0.0, 1.0);
fragColor = colDiffuse * opacity;
}
`;
const ZString FONT_FS = `
#version 330
@ -85,6 +114,7 @@ fn int main(String[] args)
ui.load_font("font1", "resources/hack-nerd.ttf", 16)!!;
ui.sprite_atlas_create("icons", AtlasType.ATLAS_RGBA32, 512, 512)!!;
ui.import_sprite_file_qoi("tux", "resources/tux.qoi")!!;
ui.import_sprite_file_qoi("tick", "resources/tick_sdf.qoi", SpriteType.SPRITE_MSDF)!!;
short width = 800;
short height = 450;
@ -103,10 +133,13 @@ fn int main(String[] args)
// font stuff
rl::Shader font_shader = rl::loadShaderFromMemory(null, FONT_FS);
rl::Image font_atlas;
rl::Image sprite_atlas;
rl::Texture2D font_texture;
rl::Texture2D sprite_texture;
ugui::Id font_id = ui.get_font_id("font1");
// sprite stuff
rl::Shader msdf_shader = rl::loadShaderFromMemory(null, MSDF_FS);
rl::Image sprite_atlas;
rl::Texture2D sprite_texture;
ugui::Id sprite_id = ui.get_sprite_atlas_id("icons");
// Main loop
@ -184,7 +217,7 @@ fn int main(String[] args)
ui.layout_next_row()!!;
static bool check;
ui.checkbox("check1", "", ugui::Point{}, &check)!!;
ui.checkbox("check1", "", ugui::Point{}, &check, "tick")!!;
/*
ui.layout_set_column()!!;
@ -288,11 +321,16 @@ fn int main(String[] args)
rl::drawTextureRec(font_texture, cmd.sprite.texture_rect.conv(), position, cmd.sprite.hue.conv());
rl::endShaderMode();
} else if (cmd.sprite.texture_id == sprite_id) {
rl::Vector2 position = {
.x = cmd.sprite.rect.x,
.y = cmd.sprite.rect.y,
};
rl::drawTextureRec(sprite_texture, cmd.sprite.texture_rect.conv(), position, cmd.sprite.hue.conv());
// FIXME: THIS CODE IS SHIT, REAL DOO DOO
{|
if (cmd.sprite.type == SpriteType.SPRITE_MSDF) {
rl::beginShaderMode(msdf_shader);
defer rl::endShaderMode();
rl::drawTexturePro(sprite_texture, cmd.sprite.texture_rect.conv(), cmd.sprite.rect.conv(), rl::Vector2{0.0f, 0.0f}, 0.0f, cmd.sprite.hue.conv());
} else {
rl::drawTexturePro(sprite_texture, cmd.sprite.texture_rect.conv(), cmd.sprite.rect.conv(), rl::Vector2{0.0f, 0.0f}, 0.0f, cmd.sprite.hue.conv());
}
|};
} else {
io::printfn("unknown texture id: %d", cmd.sprite.texture_id);
}