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 IndexBufferPointerBase;
indexBuffer.Dispose();
}
this.vao = new VertexArrayObject(
this.indexBufferRenderer,
this.positionBufferRenderer, this.uvBufferRenderer);
}
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() as IndexBufferPointerBase;
indexBuffer.Dispose();
}
this.vao = new VertexArrayObject(
this.indexBufferRenderer,
this.positionBufferRenderer, this.uvBufferRenderer);
}
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 unsafe void InitializeVAO()
{
vec3[] colors = new vec3[] { new vec3(1, 0, 0), new vec3(0, 1, 0), new vec3(0, 0, 1) };
// 计算三个坐标轴
for (int axisIndex = 0; axisIndex < 3; axisIndex++)
{
var axisVertexCount = faceCount * 2;
// Create a vertex buffer for the vertex data.
using (var positionBuffer = new AxisPositionBuffer(strin_Position, BufferUsage.StaticDraw))
{
positionBuffer.Alloc(axisVertexCount);
vec3* positionArray = (vec3*)positionBuffer.FirstElement();
for (int i = 0; i < axisVertexCount; i++)
{
int face = i / 2;
float[] components = new float[]{
i % 2 == 1 ? 0 : this.axisLength,
(float)(this.radius * Math.Cos(face * (Math.PI * 2) / faceCount)),
(float)(this.radius * Math.Sin(face * (Math.PI * 2) / faceCount))};
positionArray[i] = new vec3(
components[(0 + axisIndex) % 3], components[(2 + axisIndex) % 3], components[(4 + axisIndex) % 3]);
}
this.positionBufferRenderers[axisIndex] = positionBuffer.GetRenderer();
}
// Now do the same for the color data.
using (var colorBuffer = new AxisColorBuffer(strin_Color, BufferUsage.StaticDraw))
{
colorBuffer.Alloc(axisVertexCount);
vec3* colorArray = (vec3*)colorBuffer.FirstElement();
for (int i = 0; i < axisVertexCount; i++)
{
colorArray[i] = colors[axisIndex];
}
this.colorBufferRenderers[axisIndex] = colorBuffer.GetRenderer();
}
// Now for the index data.
using (var indexBuffer = new AxisIndexBuffer())
{
int indexLength = axisVertexCount + 2;
indexBuffer.Alloc(indexLength);
byte* cylinderIndex = (byte*)indexBuffer.FirstElement();
for (int i = 0; i < indexLength - 2; i++)
{
cylinderIndex[i] = (byte)i;
}
cylinderIndex[indexLength - 2] = 0;
cylinderIndex[indexLength - 1] = 1;
this.indexBufferRenderers[axisIndex] = indexBuffer.GetRenderer();
}
}
// 计算XZ平面
{
int planVertexCount = 4;
// Create a vertex buffer for the vertex data.
using (var positionBuffer = new AxisPositionBuffer(strin_Position, BufferUsage.StaticDraw))
{
positionBuffer.Alloc(planVertexCount);
vec3* plan = (vec3*)positionBuffer.FirstElement();
{
float length = this.axisLength;
plan[0] = new vec3(-length, 0, -length);
plan[1] = new vec3(-length, 0, length);
plan[2] = new vec3(length, 0, length);
plan[3] = new vec3(length, 0, -length);
}
this.planPositionBufferRenderer = positionBuffer.GetRenderer();
}
// Now do the same for the colour data.
using (var colorBuffer = new AxisColorBuffer(strin_Color, BufferUsage.StaticDraw))
{
colorBuffer.Alloc(planVertexCount);
vec3* colorArray = (vec3*)colorBuffer.FirstElement();
{
for (int i = 0; i < planVertexCount; i++)
{
colorArray[i] = this.planColor;
}
}
this.planColorBufferRenderer = colorBuffer.GetRenderer();
}
using (var indexBuffer = new ZeroIndexBuffer(DrawMode.LineLoop, 0, planVertexCount))
{
indexBuffer.Alloc(planVertexCount);//这句话实际上什么都没有做。
this.planIndexBufferRenderer = indexBuffer.GetRenderer();
}
}
}
unsafe void InitializeVAO()
{
vec3[] colors = new vec3[] { new vec3(1, 0, 0), new vec3(0, 1, 0), new vec3(0, 0, 1) };
// 计算三个坐标轴
for (int axisIndex = 0; axisIndex < 3; axisIndex++)
{
var axisVertexCount = faceCount * 2;
// Create a vertex buffer for the vertex data.
using (var positionBuffer = new AxisPositionBuffer(strin_Position, BufferUsage.StaticDraw))
{
positionBuffer.Alloc(axisVertexCount);
vec3 *positionArray = (vec3 *)positionBuffer.FirstElement();
for (int i = 0; i < axisVertexCount; i++)
{
int face = i / 2;
float[] components = new float[] {
i % 2 == 1 ? 0 : this.axisLength,
(float)(this.radius * Math.Cos(face * (Math.PI * 2) / faceCount)),
(float)(this.radius * Math.Sin(face * (Math.PI * 2) / faceCount))
};
positionArray[i] = new vec3(
components[(0 + axisIndex) % 3], components[(2 + axisIndex) % 3], components[(4 + axisIndex) % 3]);
}
this.positionBufferRenderers[axisIndex] = positionBuffer.GetRenderer();
}
// Now do the same for the color data.
using (var colorBuffer = new AxisColorBuffer(strin_Color, BufferUsage.StaticDraw))
{
colorBuffer.Alloc(axisVertexCount);
vec3 *colorArray = (vec3 *)colorBuffer.FirstElement();
for (int i = 0; i < axisVertexCount; i++)
{
colorArray[i] = colors[axisIndex];
}
this.colorBufferRenderers[axisIndex] = colorBuffer.GetRenderer();
}
// Now for the index data.
using (var indexBuffer = new AxisIndexBuffer())
{
int indexLength = axisVertexCount + 2;
indexBuffer.Alloc(indexLength);
byte *cylinderIndex = (byte *)indexBuffer.FirstElement();
for (int i = 0; i < indexLength - 2; i++)
{
cylinderIndex[i] = (byte)i;
}
cylinderIndex[indexLength - 2] = 0;
cylinderIndex[indexLength - 1] = 1;
this.indexBufferRenderers[axisIndex] = indexBuffer.GetRenderer() as IndexBufferPointerBase;
}
}
// 计算XZ平面
{
int planVertexCount = 4;
// Create a vertex buffer for the vertex data.
using (var positionBuffer = new AxisPositionBuffer(strin_Position, BufferUsage.StaticDraw))
{
positionBuffer.Alloc(planVertexCount);
vec3 *plan = (vec3 *)positionBuffer.FirstElement();
{
float length = this.axisLength;
plan[0] = new vec3(-length, 0, -length);
plan[1] = new vec3(-length, 0, length);
plan[2] = new vec3(length, 0, length);
plan[3] = new vec3(length, 0, -length);
}
this.planPositionBufferRenderer = positionBuffer.GetRenderer();
}
// Now do the same for the colour data.
using (var colorBuffer = new AxisColorBuffer(strin_Color, BufferUsage.StaticDraw))
{
colorBuffer.Alloc(planVertexCount);
vec3 *colorArray = (vec3 *)colorBuffer.FirstElement();
{
for (int i = 0; i < planVertexCount; i++)
{
colorArray[i] = this.planColor;
}
}
this.planColorBufferRenderer = colorBuffer.GetRenderer();
}
using (var indexBuffer = new ZeroIndexBuffer(DrawMode.LineLoop, 0, planVertexCount))
{
indexBuffer.Alloc(planVertexCount);//这句话实际上什么都没有做。
this.planIndexBufferRenderer = indexBuffer.GetRenderer() as IndexBufferPointerBase;
}
}
}