Basic Rendering Concepts #487
Description
Hello, I'm trying to follow the Basic Rendering concepts guide but I got stuck in the second code block, it supposedly shows how to render two triangles in the HUD but it shows code that modifies the graphics.pose() MatrixStack instead of drawing any vertices.
This is the code block:
private HudElement hudLayer() {
return (graphics, deltaTracker) -> {
// :::2
Matrix3x2fStack matrices = graphics.pose();
// Store the total tick delta in a field, so we can use it later.
totalTickProgress += deltaTracker.getGameTimeDeltaPartialTick(true);
// Push a new matrix onto the stack.
matrices.pushMatrix();
// :::2
// :::2
// Scale the matrix by 0.5 to make the triangle smaller and larger over time.
float scaleAmount = Mth.sin(totalTickProgress / 10F) / 2F + 1.5F;
// Apply the scaling amount to the matrix.
// We don't need to scale the Z axis since it's on the HUD and 2D.
matrices.scale(scaleAmount, scaleAmount);
// :::2
matrices.scale(1 / scaleAmount, 1 / scaleAmount);
matrices.translate(60f, 60f);
// :::3
// Lerp between 0 and 360 degrees over time.
float rotationAmount = totalTickProgress / 50F % 360;
matrices.rotate(rotationAmount);
// Shift entire square so that it rotates in its center.
matrices.translate(-20f, -40f);
// :::3
// :::2
// We do not need to manually write to the buffer. GuiGraphics methods write to GUI buffer in `GuiRenderer` at the end of preparation.
// Pop our matrix from the stack.
matrices.popMatrix();
// :::2
};
}