private void LineBuffer_Loading(object sender, EventArgs e)
{
for (int i = 0; i < this.maxlines * 2; i++)
{
vertex[i] = Vector3.Zero;
colour[i] = Vector4.Zero;
index[i] = (uint)i;
}
vertexVBO.Init();
vertexVBO.SetData(vertex);
colourVBO.Init();
colourVBO.SetData(colour);
indexVBO.Init();
indexVBO.SetData(index);
// setup shader
this.shader.Init(
@"LineBuffer.glsl|VS",
@"LineBuffer.glsl|FS",
new List <Variable>
{
new Variable(0, "vertex"),
new Variable(1, "colour")
});
}
private void BuildFrameData()
{
meshVbo = new VBO();
meshVbo.SetData(new[] {
new Vertex(0.0f, 0.5f, Color4.Red),
new Vertex(-0.5f, -0.5f, Color4.Green),
new Vertex(0.5f, -0.5f, Color4.Blue)
});
meshVao = new VAO(3); // 3 вершины
// Нулевой атрибут вершины – позиция, у неё 2 компонента типа float
meshVao.AttachVBO(0, meshVbo, 2, VertexAttribPointerType.Float, 5 * sizeof(float), 0);
// Первый атрибут вершины – цвет, у него 3 компонента типа float
meshVao.AttachVBO(1, meshVbo, 3, VertexAttribPointerType.Float, 5 * sizeof(float), 2 * sizeof(float));
shaderProgram = new ShaderProgram();
using (var vertexShader = new Shader(ShaderType.VertexShader))
using (var fragmentShader = new Shader(ShaderType.FragmentShader))
{
System.Console.WriteLine("vertexShader.Compile");
vertexShader.Compile(@"
#version 400
layout(location = 0) in vec2 Position;
layout(location = 1) in vec3 Color;
out vec3 fragColor;
void main()
{
gl_Position = vec4(Position, 0.0, 1.0);
fragColor = Color;
}
" );
fragmentShader.Compile(@"
#version 400
in vec3 fragColor;
layout(location = 0) out vec4 outColor;
void main()
{
outColor = vec4(fragColor, 1.0);
}
" );
System.Console.WriteLine("shaderProgram.AttachShader(vertexShader);");
shaderProgram.AttachShader(vertexShader);
shaderProgram.AttachShader(fragmentShader);
shaderProgram.Link();
}
}
public Entity(Vector2 position, Vector2 size, Texture tex, Vector2 texScale, bool solid)
{
float x = size.X / 2.0f;
float y = size.Y / 2.0f;
float[] vertices =
{
-x, y,
-x, -y,
x, y,
x, -y
};
float[] texcoords =
{
0, 1,
0, 0,
1, 1,
1, 0
};
byte[] indices =
{
0, 1, 2, 3
};
if (texScale != Vector2.One)
{
for (int i = 0; i < texcoords.Length; i += 2)
{
texcoords[i] *= texScale.X;
texcoords[i + 1] *= texScale.Y;
}
}
VBO verts = new VBO(), texC = new VBO(), ind = new VBO();
verts.SetData(ref vertices, BufferUsageHint.StaticDraw);
texC.SetData(ref texcoords, BufferUsageHint.StaticDraw);
ind.SetData(ref indices, BufferUsageHint.StaticDraw);
buffers = new BufferSet();
buffers.VertexBuffer = verts;
buffers.VertexSize = 2;
buffers.TexCoordBuffer = texC;
buffers.TexCoordSize = 2;
buffers.IndexBuffer = ind;
buffers.DrawMode = BeginMode.TriangleStrip;
buffers.SetDrawState(DrawStates.Vertex | DrawStates.TexCoord);
this.size = size;
this.position = position;
this.tex = tex;
this.solid = solid;
Name = string.Empty;
Visible = true;
RebuildModelMatrix();
}
