Sergii Liebodkin
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edd8756b73
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wg_engine: introduced scene opacity
[issues 1479: opacity](#1479)
Supported opacity value for scene
Usage example:
//Create a Scene
auto scene = tvg::Scene::gen();
scene->opacity(100);
//Prepare Circle
auto shape1 = tvg::Shape::gen();
shape1->appendCircle(400, 400, 250, 250);
shape1->fill(255, 255, 0);
shape1->opacity(100);
scene->push(std::move(shape1));
//Round rectangle
auto shape2 = tvg::Shape::gen();
shape2->appendRect(450, 100, 200, 200, 50, 50);
shape2->fill(0, 255, 0);
shape2->strokeWidth(10);
shape2->strokeFill(255, 255, 255);
scene->push(std::move(shape2));
canvas->push(std::move(scene));
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2024-01-18 18:00:08 +09:00 |
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Sergii Liebodkin
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14b2508cd1
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wg_engine: Added ability to draw multiple solid color filled shapes
[issues 1479: Shape](https://github.com/thorvg/thorvg/issues/1479)
In order to build you need third party libraries. Before you start please read this: [LearnWebGPU](https://eliemichel.github.io/LearnWebGPU/getting-started/hello-webgpu.html)
Usage example:
// init glfw
glfwInit();
// create a windowed mode window and its opengl context
glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API);
GLFWwindow* window = glfwCreateWindow(800, 800, "WebGPU base app", nullptr, nullptr);
// get window size
int width{}, height{};
glfwGetWindowSize(window, &width, &height);
// init engine webgpu
tvg::Initializer::init(tvg::CanvasEngine::Wg, 0);
// create wg canvas
auto canvasWg = tvg::WgCanvas::gen();
canvas_wg->target(glfwGetWin32Window(window), width, height);
// prepare a shape (Rectangle + Rectangle + Circle + Circle)
auto shape1 = tvg::Shape::gen();
shape1->appendRect(0, 0, 200, 200); //x, y, w, h
shape1->appendRect(100, 100, 300, 300, 100, 100); //x, y, w, h, rx, ry
shape1->appendCircle(400, 400, 100, 100); //cx, cy, radiusW, radiusH
shape1->appendCircle(400, 500, 170, 100); //cx, cy, radiusW, radiusH
shape1->fill(255, 255, 0); //r, g, b
canvas_wg->push(std::move(shape1));
while (!glfwWindowShouldClose(window)) {
// webgpu
canvas_wg->draw();
canvas_wg->sync();
// pull events
glfwPollEvents();
}
// terminate engine and window
tvg::Initializer::term(tvg::CanvasEngine::Wg);
glfwDestroyWindow(window);
glfwTerminate();
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2023-10-20 18:37:52 +09:00 |
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