@animech-public/playcanvas/build/playcanvas.prf/src/scene/graphics/quad-render-utils.js

PlayCanvas WebGL game engine

import { Vec4 } from '../../core/math/vec4.js';
import { QuadRender } from './quad-render.js';
import { RenderPassQuad } from './render-pass-quad.js';

const _tempRect = new Vec4();
function drawQuadWithShader(device, target, shader, rect, scissorRect) {
	const quad = new QuadRender(shader);
	if (!rect) {
		rect = _tempRect;
		rect.x = 0;
		rect.y = 0;
		rect.z = target ? target.width : device.width;
		rect.w = target ? target.height : device.height;
	}
	const renderPass = new RenderPassQuad(device, quad, rect, scissorRect);
	renderPass.init(target);
	renderPass.colorOps.clear = false;
	renderPass.depthStencilOps.clearDepth = false;
	if (device.isWebGPU && target === null && device.samples > 1) {
		renderPass.colorOps.store = true;
	}
	renderPass.render();
	quad.destroy();
}
function drawTexture(device, texture, target, shader, rect, scissorRect) {
	shader = shader || device.getCopyShader();
	device.constantTexSource.setValue(texture);
	drawQuadWithShader(device, target, shader, rect, scissorRect);
}

export { drawQuadWithShader, drawTexture };