private unsafe void InitVertexBuffers()
{
{
VR04PositionBuffer positionBuffer = new VR04PositionBuffer(strin_Position);
positionBuffer.Alloc(zFrameCount);
QuadPosition* array = (QuadPosition*)positionBuffer.FirstElement();
for (int i = 0; i < zFrameCount; i++)
{
array[i] = new QuadPosition(
new vec3(-xLength, -yLength, (float)i / (float)zFrameCount - 0.5f),
new vec3(xLength, -yLength, (float)i / (float)zFrameCount - 0.5f),
new vec3(xLength, yLength, (float)i / (float)zFrameCount - 0.5f),
new vec3(-xLength, yLength, (float)i / (float)zFrameCount - 0.5f)
);
}
this.positionBufferRenderer = positionBuffer.GetRenderer();
positionBuffer.Dispose();
}
{
VR04UVBuffer uvBuffer = new VR04UVBuffer(strin_uv);
uvBuffer.Alloc(zFrameCount);
QuadUV* array = (QuadUV*)uvBuffer.FirstElement();
for (int i = 0; i < zFrameCount; i++)
{
array[i] = new QuadUV(
new vec3(0, 0, (float)i / (float)zFrameCount),
new vec3(1, 0, (float)i / (float)zFrameCount),
new vec3(1, 1, (float)i / (float)zFrameCount),
new vec3(0, 1, (float)i / (float)zFrameCount)
);
}
this.uvBufferRenderer = uvBuffer.GetRenderer();
uvBuffer.Dispose();
}
{
var indexBuffer = new VR04IndexBuffer();
indexBuffer.Alloc(zFrameCount);
QuadIndex* array = (QuadIndex*)indexBuffer.FirstElement();
for (uint i = 0; i < zFrameCount; i++)
{
if (this.reverSide)
array[i] = new QuadIndex((zFrameCount - i - 1) * 4 + 0,
(zFrameCount - i - 1) * 4 + 1,
(zFrameCount - i - 1) * 4 + 2,
(zFrameCount - i - 1) * 4 + 3
);
else
{
array[i] = new QuadIndex(i * 4 + 0, i * 4 + 1, i * 4 + 2, i * 4 + 3);
}
}
this.indexBufferRenderer = indexBuffer.GetRenderer();
indexBuffer.Dispose();
}
//if (!this.reverSide)
//{
// var indexBuffer = new ZeroIndexBuffer(DrawMode.Quads, zFrameCount * 4);
// indexBuffer.Alloc(zFrameCount);// this actually does nothing.
// this.indexBufferRenderer = indexBuffer.GetRenderer();
// indexBuffer.Dispose();
//}
//else
//{
// var indexBuffer = new VR04IndexBuffer();
// indexBuffer.Alloc(zFrameCount);
// QuadIndex* array = (QuadIndex*)indexBuffer.FirstElement();
// for (uint i = 0; i < zFrameCount; i++)
// {
// //array[i] = new QuadIndex(i * 4 + 0, i * 4 + 1, i * 4 + 2, i * 4 + 3);
// array[i] = new QuadIndex((zFrameCount - i - 1) * 4 + 0,
// (zFrameCount - i - 1) * 4 + 1,
// (zFrameCount - i - 1) * 4 + 2,
// (zFrameCount - i - 1) * 4 + 3
// );
// }
// this.indexBufferRenderer = indexBuffer.GetRenderer();
// indexBuffer.Dispose();
//}
this.vao = new VertexArrayObject(this.positionBufferRenderer, this.uvBufferRenderer, this.indexBufferRenderer);
}
private unsafe void InitVertexBuffers()
{
{
VR02PositionBuffer positionBuffer = new VR02PositionBuffer(strin_Position);
positionBuffer.Alloc(xFrameCount * yFrameCount * zFrameCount);
vec3* array = (vec3*)positionBuffer.FirstElement();
int index = 0;
for (int i = 0; i < xFrameCount; i++)
{
for (int j = 0; j < yFrameCount; j++)
{
for (int k = 0; k < zFrameCount; k++)
{
array[index++] = new vec3(
(float)i / (float)xFrameCount - 0.5f,
(float)j / (float)yFrameCount - 0.5f,
((float)k / (float)zFrameCount - 0.5f) * 109.0f / 256.0f
);
}
}
}
this.positionBufferRenderer = positionBuffer.GetRenderer();
positionBuffer.Dispose();
}
{
VR02UVBuffer uvBuffer = new VR02UVBuffer(strin_uv);
uvBuffer.Alloc(xFrameCount * yFrameCount * zFrameCount);
vec3* array = (vec3*)uvBuffer.FirstElement();
int index = 0;
for (int i = 0; i < xFrameCount; i++)
{
for (int j = 0; j < yFrameCount; j++)
{
for (int k = 0; k < zFrameCount; k++)
{
array[index++] = new vec3(
(float)i / (float)xFrameCount,
(float)j / (float)yFrameCount,
(float)k / (float)zFrameCount
);
}
}
}
this.uvBufferRenderer = uvBuffer.GetRenderer();
uvBuffer.Dispose();
}
{
var indexBuffer = new ZeroIndexBuffer(DrawMode.Points, 0, xFrameCount * yFrameCount * zFrameCount);
indexBuffer.Alloc(xFrameCount * yFrameCount * zFrameCount);// this actually does nothing.
this.indexBufferRenderer = indexBuffer.GetRenderer() as ZeroIndexBufferRenderer;
indexBuffer.Dispose();
}
this.vao = new VertexArrayObject(this.positionBufferRenderer, this.uvBufferRenderer, this.indexBufferRenderer);
}
private unsafe void InitVertexBuffers()
{
{
VR01PositionBuffer positionBuffer = new VR01PositionBuffer(strin_Position);
positionBuffer.Alloc(zFrameCount);
QuadPosition* array = (QuadPosition*)positionBuffer.FirstElement();
for (int i = 0; i < zFrameCount; i++)
{
array[i] = new QuadPosition(
new vec3(-xLength, -yLength, (float)i / (float)zFrameCount - 0.5f),
new vec3(xLength, -yLength, (float)i / (float)zFrameCount - 0.5f),
new vec3(xLength, yLength, (float)i / (float)zFrameCount - 0.5f),
new vec3(-xLength, yLength, (float)i / (float)zFrameCount - 0.5f)
);
}
this.positionBufferRenderer = positionBuffer.GetRenderer();
positionBuffer.Dispose();
}
{
VR01UVBuffer uvBuffer = new VR01UVBuffer(strin_uv);
uvBuffer.Alloc(zFrameCount);
QuadUV* array = (QuadUV*)uvBuffer.FirstElement();
for (int i = 0; i < zFrameCount; i++)
{
array[i] = new QuadUV(
new vec3(0, 0, (float)i / (float)zFrameCount),
new vec3(1, 0, (float)i / (float)zFrameCount),
new vec3(1, 1, (float)i / (float)zFrameCount),
new vec3(0, 1, (float)i / (float)zFrameCount)
);
}
this.uvBufferRenderer = uvBuffer.GetRenderer();
uvBuffer.Dispose();
}
{
var indexBuffer = new ZeroIndexBuffer(DrawMode.Quads, 0, zFrameCount * 4);
indexBuffer.Alloc(zFrameCount);// this actually does nothing.
this.indexBufferRenderer = indexBuffer.GetRenderer();
indexBuffer.Dispose();
}
this.vao = new VertexArrayObject(this.positionBufferRenderer, this.uvBufferRenderer, this.indexBufferRenderer);
}
protected override void DoRender(RenderEventArgs e)
{
if (this.axisVAO == null)
{
this.axisVAO = new VertexArrayObject[3];
for (int i = 0; i < 3; i++)
{
var vao = new VertexArrayObject(this.positionBufferRenderers[i], this.colorBufferRenderers[i], this.indexBufferRenderers[i]);
vao.Create(e, this.shaderProgram);
this.axisVAO[i] = vao;
}
{
var vao = new VertexArrayObject(this.planPositionBufferRenderer, planColorBufferRenderer, this.planIndexBufferRenderer);
vao.Create(e, this.shaderProgram);
this.planVAO = vao;
}
}
// 绑定shader
this.shaderProgram.Bind();
// 画坐标轴
for (int i = 0; i < 3; i++)
{
this.axisVAO[i].Render(e, this.shaderProgram);
}
// 画平面
{
this.planVAO.Render(e, this.shaderProgram);
}
// 解绑shader
this.shaderProgram.Unbind();
}
protected override void DoRender(RenderEventArgs e)
{
ShaderProgram program = this.shaderProgram;
// 绑定shader
program.Bind();
program.SetUniformMatrix4(strprojectionMatrix, projectionMatrix.to_array());
program.SetUniformMatrix4(strviewMatrix, viewMatrix.to_array());
program.SetUniformMatrix4(strmodelMatrix, modelMatrix.to_array());
int[] originalPolygonMode = new int[1];
GL.GetInteger(GetTarget.PolygonMode, originalPolygonMode);
GL.PolygonMode(PolygonModeFaces.FrontAndBack, this.polygonMode);
if (this.vertexArrayObject == null)
{
var vao = new VertexArrayObject(
this.positionBufferRenderer,
//this.colorBufferRenderer,
this.normalBufferRenderer,
this.indexBufferRenderer);
vao.Create(e, this.shaderProgram);
this.vertexArrayObject = vao;
}
else
{
this.vertexArrayObject.Render(e, this.shaderProgram);
}
GL.PolygonMode(PolygonModeFaces.FrontAndBack, (PolygonModes)(originalPolygonMode[0]));
// 解绑shader
program.Unbind();
}
private unsafe void InitVertexBuffers()
{
// http://images.cnblogs.com/cnblogs_com/bitzhuwei/482613/o_Cube-small.jpg
{
VR03PositionBuffer positionBuffer = new VR03PositionBuffer(strin_Position);
positionBuffer.Alloc(xFrameCount * yFrameCount * zFrameCount);
HexahedronPosition* array = (HexahedronPosition*)positionBuffer.FirstElement();
int index = 0;
for (int i = 0; i < xFrameCount; i++)
{
for (int j = 0; j < yFrameCount; j++)
{
for (int k = 0; k < zFrameCount; k++)
{
var x = ((float)i / (float)xFrameCount - 0.5f) * factor;
var y = ((float)j / (float)yFrameCount - 0.5f) * factor;
var z = (((float)k / (float)zFrameCount - 0.5f) * 109.0f / 256.0f) * factor;
var hexahedron = new HexahedronPosition();
hexahedron.v0 = new vec3(x + hexahedronHalfLength, y + hexahedronHalfLength, z + hexahedronHalfLength);
hexahedron.v1 = new vec3(x - hexahedronHalfLength, y + hexahedronHalfLength, z + hexahedronHalfLength);
hexahedron.v2 = new vec3(x + hexahedronHalfLength, y - hexahedronHalfLength, z + hexahedronHalfLength);
hexahedron.v3 = new vec3(x - hexahedronHalfLength, y - hexahedronHalfLength, z + hexahedronHalfLength);
hexahedron.v4 = new vec3(x + hexahedronHalfLength, y + hexahedronHalfLength, z - hexahedronHalfLength);
hexahedron.v5 = new vec3(x - hexahedronHalfLength, y + hexahedronHalfLength, z - hexahedronHalfLength);
hexahedron.v6 = new vec3(x + hexahedronHalfLength, y - hexahedronHalfLength, z - hexahedronHalfLength);
hexahedron.v7 = new vec3(x - hexahedronHalfLength, y - hexahedronHalfLength, z - hexahedronHalfLength);
array[index++] = hexahedron;
}
}
}
this.positionBufferRenderer = positionBuffer.GetRenderer();
positionBuffer.Dispose();
}
{
VR03UVBuffer uvBuffer = new VR03UVBuffer(strin_uv);
uvBuffer.Alloc(xFrameCount * yFrameCount * zFrameCount);
HexahedronUV* array = (HexahedronUV*)uvBuffer.FirstElement();
int index = 0;
for (int i = 0; i < xFrameCount; i++)
{
for (int j = 0; j < yFrameCount; j++)
{
for (int k = 0; k < zFrameCount; k++)
{
var x = (float)i / (float)xFrameCount;
var y = (float)j / (float)yFrameCount;
var z = (float)k / (float)zFrameCount;
var color = new vec3(x, y, z);
var uv = new HexahedronUV();
uv.v0 = color;
uv.v1 = color;
uv.v2 = color;
uv.v3 = color;
uv.v4 = color;
uv.v5 = color;
uv.v6 = color;
uv.v7 = color;
array[index++] = uv;
}
}
}
this.uvBufferRenderer = uvBuffer.GetRenderer();
uvBuffer.Dispose();
}
{
var indexBuffer = new VR03IndexBuffer();
indexBuffer.Alloc(xFrameCount * yFrameCount * zFrameCount);
HexahedronIndex* array = (HexahedronIndex*)indexBuffer.FirstElement();
int index = 0;
for (int i = 0; i < xFrameCount; i++)
{
for (int j = 0; j < yFrameCount; j++)
{
for (int k = 0; k < zFrameCount; k++)
{
uint centerIndex = (uint)((i * yFrameCount * zFrameCount + j * zFrameCount + k) * 8);
array[index++] = new HexahedronIndex(centerIndex);
}
}
}
this.indexBufferRenderer = indexBuffer.GetRenderer();
indexBuffer.Dispose();
}
this.vao = new VertexArrayObject(this.positionBufferRenderer, this.uvBufferRenderer, this.indexBufferRenderer);
}
