2D polygon function

iramindustry

Is there a way to replicate the polygon and fill functions like canvas in Neoaxis?

var ctx = c.getContext("2d");
ctx.beginPath();
ctx.moveTo(20, 20);
ctx.lineTo(20, 100);
ctx.lineTo(70, 100);
ctx.closePath();
ctx.stroke();
ctx.fillStyle = "red";
ctx.fill();

betauser

You can use methods of CanvasRenderer. Triangles rendering is also supported.

iramindustry

I created this but it appeared to be slow.

There is a loop used to draw the both sides of the terrain, the segments on the road, the road itself and the lanes.

` public static void DrawPolygon4( CanvasRenderer ctx, double xloc, double yloc, double x2loc, double y2loc, double x3loc, double y3loc, double x4loc, double y4loc, ColorValue colr ) {
double newX, newY, newX2, newY2, newX3, newY3, newX4, newY4;

		newX = xloc / iGetViewportWidth;
		newY = yloc / iGetViewportHeight;
		newX2 = x2loc / iGetViewportWidth;
		newY2 = y2loc / iGetViewportHeight;
		newX3 = x3loc / iGetViewportWidth;
		newY3 = y3loc / iGetViewportHeight;
		newX4 = x4loc / iGetViewportWidth;
		newY4 = y4loc / iGetViewportHeight;

		var vertices = new CanvasRenderer.TriangleVertex[ 3 ]
		{
			new CanvasRenderer.TriangleVertex( new Vector2F( (float)newX, (float)newY), colr ),
			new CanvasRenderer.TriangleVertex( new Vector2F( (float)newX2, (float)newY2), colr ),
			new CanvasRenderer.TriangleVertex( new Vector2F( (float)newX3, (float)newY3), colr )
		};
		ctx.AddTriangles( vertices );

		var vertices2 = new CanvasRenderer.TriangleVertex[ 3 ]
		{
			new CanvasRenderer.TriangleVertex( new Vector2F( (float)newX3, (float)newY3), colr ),
			new CanvasRenderer.TriangleVertex( new Vector2F( (float)newX4, (float)newY4), colr ),
			new CanvasRenderer.TriangleVertex( new Vector2F( (float)newX, (float)newY), colr )
		};
		ctx.AddTriangles( vertices2 );
	}`

If i do not press on the acceleration, the frame rate will go to 60. This screen the car is not moving.

Once the acceleration is done, the frame rate will drop.

If i commented out the codes to draw the roads, i get high frame rate.

Is there a way to render these faster?

Note that i did not write the codes, i just ported them into NeoAxis.

iramindustry

Currently each polygon is submitted one by one.

I think if I can batch the request in one go, then it should be faster.