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() as IndexBufferPointerBase;
indexBuffer.Dispose();
}
this.vao = new VertexArrayObject(
this.indexBufferRenderer,
this.positionBufferRenderer, this.uvBufferRenderer);
}
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);
}