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Use TriangleBorder shader to draw triangles

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This commit is contained in:
Andrei Zavatski 2023-01-24 07:38:42 +03:00
parent 04995b66da
commit 04c96355cb
1 changed files with 18 additions and 22 deletions
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40
osu.Game/Graphics/Backgrounds/Triangles.cs
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@ -31,12 +31,6 @@ namespace osu.Game.Graphics.Backgrounds
/// </summary>
private const float equilateral_triangle_ratio = 0.866f;
/// <summary>
/// How many screen-space pixels are smoothed over.
/// Same behavior as Sprite's EdgeSmoothness.
/// </summary>
private const float edge_smoothness = 1;
private Color4 colourLight = Color4.White;
public Color4 ColourLight
@ -115,7 +109,7 @@ namespace osu.Game.Graphics.Backgrounds
private void load(IRenderer renderer, ShaderManager shaders)
{
texture = renderer.WhitePixel;
shader = shaders.Load(VertexShaderDescriptor.TEXTURE_2, FragmentShaderDescriptor.TEXTURE);
shader = shaders.Load(VertexShaderDescriptor.TEXTURE_2, "TriangleBorder");
}
protected override void LoadComplete()
@ -252,14 +246,17 @@ namespace osu.Game.Graphics.Backgrounds
private class TrianglesDrawNode : DrawNode
{
private float fill = 1f;
protected new Triangles Source => (Triangles)base.Source;
private IShader shader;
private Texture texture;
private readonly List<TriangleParticle> parts = new List<TriangleParticle>();
private Vector2 size;
private readonly Vector2 triangleSize = new Vector2(1f, equilateral_triangle_ratio) * triangle_size;
private Vector2 size;
private IVertexBatch<TexturedVertex2D> vertexBatch;
public TrianglesDrawNode(Triangles source)
@ -290,29 +287,28 @@ namespace osu.Game.Graphics.Backgrounds
}
shader.Bind();
Vector2 localInflationAmount = edge_smoothness * DrawInfo.MatrixInverse.ExtractScale().Xy;
shader.GetUniform<float>("thickness").UpdateValue(ref fill);
foreach (TriangleParticle particle in parts)
{
var offset = triangle_size * new Vector2(particle.Scale * 0.5f, particle.Scale * equilateral_triangle_ratio);
Vector2 relativeSize = Vector2.Divide(triangleSize * particle.Scale, size);
var triangle = new Triangle(
Vector2Extensions.Transform(particle.Position * size, DrawInfo.Matrix),
Vector2Extensions.Transform(particle.Position * size + offset, DrawInfo.Matrix),
Vector2Extensions.Transform(particle.Position * size + new Vector2(-offset.X, offset.Y), DrawInfo.Matrix)
Vector2 topLeft = particle.Position - new Vector2(relativeSize.X * 0.5f, 0f);
Vector2 topRight = topLeft + new Vector2(relativeSize.X, 0f);
Vector2 bottomLeft = topLeft + new Vector2(0f, relativeSize.Y);
Vector2 bottomRight = bottomLeft + new Vector2(relativeSize.X, 0f);
var drawQuad = new Quad(
Vector2Extensions.Transform(topLeft * size, DrawInfo.Matrix),
Vector2Extensions.Transform(topRight * size, DrawInfo.Matrix),
Vector2Extensions.Transform(bottomLeft * size, DrawInfo.Matrix),
Vector2Extensions.Transform(bottomRight * size, DrawInfo.Matrix)
);
ColourInfo colourInfo = DrawColourInfo.Colour;
colourInfo.ApplyChild(particle.Colour);
renderer.DrawTriangle(
texture,
triangle,
colourInfo,
null,
vertexBatch.AddAction,
Vector2.Divide(localInflationAmount, new Vector2(2 * offset.X, offset.Y)));
renderer.DrawQuad(texture, drawQuad, colourInfo, vertexAction: vertexBatch.AddAction);
}
shader.Unbind();