public static WebGLBuffer CreateArrayBuffer(this WebGLRenderingContextBase gl, Array items)
{
var arrayBuffer = gl.CreateBuffer();
gl.BindBuffer(WebGLRenderingContextBase.ARRAY_BUFFER, arrayBuffer);
gl.BufferData(WebGLRenderingContextBase.ARRAY_BUFFER, items, WebGLRenderingContextBase.STATIC_DRAW);
gl.BindBuffer(WebGLRenderingContextBase.ARRAY_BUFFER, null);
return(arrayBuffer);
}
public static WebGLBuffer CreateElementArrayBuffer(this WebGLRenderingContextBase gl, Array items)
{
var elementArrayBuffer = gl.CreateBuffer();
gl.BindBuffer(WebGLRenderingContextBase.ELEMENT_ARRAY_BUFFER, elementArrayBuffer);
gl.BufferData(WebGLRenderingContextBase.ELEMENT_ARRAY_BUFFER, items, WebGLRenderingContextBase.STATIC_DRAW);
gl.BindBuffer(WebGLRenderingContextBase.ELEMENT_ARRAY_BUFFER, null);
return(elementArrayBuffer);
}
public static WebGLBuffer CreateArrayBufferWithUsage(this WebGLRenderingContextBase gl, Array items, uint usage)
{
var arrayBuffer = gl.CreateBuffer();
gl.BindBuffer(WebGLRenderingContextBase.ARRAY_BUFFER, arrayBuffer);
gl.BufferData(WebGLRenderingContextBase.ARRAY_BUFFER, items, usage);
return(arrayBuffer);
}
void IGraphicsBackend.EndRendering()
{
GL.BindBuffer(WebGLRenderingContextBase.ARRAY_BUFFER, null);
this.currentDevice = null;
this.renderOptions = null;
this.renderStats = null;
DebugCheckOpenGLErrors();
}
public void Run()
{
var vertices = new float[]
{
-1, -1, -1,
1, -1, -1,
1, 1, -1,
-1, 1, -1,
-1, -1, 1,
1, -1, 1,
1, 1, 1,
-1, 1, 1,
-1, -1, -1,
-1, 1, -1,
-1, 1, 1,
-1, -1, 1,
1, -1, -1,
1, 1, -1,
1, 1, 1,
1, -1, 1,
-1, -1, -1,
-1, -1, 1,
1, -1, 1,
1, -1, -1,
-1, 1, -1,
-1, 1, 1,
1, 1, 1,
1, 1, -1
};
vertexBuffer = gl.CreateArrayBuffer(vertices);
indices = new ushort[]
{
0, 1, 2,
0, 2, 3,
4, 5, 6,
4, 6, 7,
8, 9, 10,
8, 10, 11,
12, 13, 14,
12, 14, 15,
16, 17, 18,
16, 18, 19,
20, 21, 22,
20, 22, 23
};
indexBuffer = gl.CreateElementArrayBuffer(indices);
var colors = new float[]
{
1, 0, 0,
1, 0, 0,
1, 0, 0,
1, 0, 0,
0, 1, 0,
0, 1, 0,
0, 1, 0,
0, 1, 0,
0, 0, 1,
0, 0, 1,
0, 0, 1,
0, 0, 1,
1, 1, 0,
1, 1, 0,
1, 1, 0,
1, 1, 0,
0, 1, 1,
0, 1, 1,
0, 1, 1,
0, 1, 1,
1, 1, 1,
1, 1, 1,
1, 1, 1,
1, 1, 1
};
colorBuffer = gl.CreateArrayBuffer(colors);
var shaderProgram = InitShaders();
pMatrixUniform = gl.GetUniformLocation(shaderProgram, "pMatrix");
vMatrixUniform = gl.GetUniformLocation(shaderProgram, "vMatrix");
wMatrixUniform = gl.GetUniformLocation(shaderProgram, "wMatrix");
gl.BindBuffer(WebGLRenderingContextBase.ARRAY_BUFFER, vertexBuffer);
var positionAttribute = (uint)gl.GetAttribLocation(shaderProgram, "position");
gl.VertexAttribPointer(positionAttribute, 3, WebGLRenderingContextBase.FLOAT, false, 0, 0);
gl.EnableVertexAttribArray(positionAttribute);
gl.BindBuffer(WebGLRenderingContextBase.ARRAY_BUFFER, colorBuffer);
var colorAttribute = (uint)gl.GetAttribLocation(shaderProgram, "color");
gl.VertexAttribPointer(colorAttribute, 3, WebGLRenderingContextBase.FLOAT, false, 0, 0);
gl.EnableVertexAttribArray(colorAttribute);
gl.BindBuffer(WebGLRenderingContextBase.ELEMENT_ARRAY_BUFFER, indexBuffer);
worldMatrix = Matrix.Identity;
}