public static vec3 reflect(vec3 I, vec3 normal)
{
throw new NotImplementedException();
}
private unsafe List <Fragment> LinearInterpolationLinesAdjacency(int count, DrawElementsType type, IntPtr indices, VertexArrayObject vao, ShaderProgram program, GLBuffer indexBuffer, PassBuffer[] passBuffers)
{
var result = new List <Fragment>();
var gl_PositionArray = (vec4 *)passBuffers[0].Mapbuffer().ToPointer();
var pointers = new void *[passBuffers.Length - 1];
for (int i = 0; i < pointers.Length; i++)
{
pointers[i] = passBuffers[i + 1].Mapbuffer().ToPointer();
}
byte[] indexData = indexBuffer.Data;
int indexLength = indexData.Length / ByteLength(type);
GCHandle pin = GCHandle.Alloc(indexData, GCHandleType.Pinned);
IntPtr pointer = pin.AddrOfPinnedObject();
var groupList = new List <LinearInterpolationInfoGroup>();
ivec4 viewport = this.viewport; // ivec4(x, y, width, height)
count = (count - count % 4);
for (int indexID = indices.ToInt32() / ByteLength(type), c = 0; c < count - 3 && indexID < indexLength - 3; indexID += 4, c += 4)
{
var group = new LinearInterpolationInfoGroup(4);
for (int i = 0; i < 4; i++)
{
uint gl_VertexID = GetVertexID(pointer, type, indexID + i);
vec4 gl_Position = gl_PositionArray[gl_VertexID];
vec3 fragCoord = new vec3((gl_Position.x + 1) / 2.0f * viewport.z + viewport.x,
(gl_Position.y + 1) / 2.0f * viewport.w + viewport.y,
(gl_Position.z + 1) / 2.0f * (float)(this.depthRangeFar - this.depthRangeNear) + (float)this.depthRangeNear);
group.array[i] = new LinearInterpolationInfo(gl_VertexID, fragCoord);
}
if (groupList.Contains(group))
{
continue;
} // discard the same line.
else
{
groupList.Add(group);
}
vec3 fragCoord0 = group.array[1].fragCoord, fragCoord1 = group.array[2].fragCoord;
{
vec3 diff = (fragCoord0 - fragCoord1); // discard line that is too small.
if (Math.Abs(diff.x) < epsilon &&
Math.Abs(diff.y) < epsilon &&
Math.Abs(diff.z) < epsilon
)
{
continue;
}
}
FindFragmentsInLine(fragCoord0, fragCoord1, pointers, group, passBuffers, result);
}
for (int i = 0; i < passBuffers.Length; i++)
{
passBuffers[i].Unmapbuffer();
}
return(result);
}
public static vec3 refract(vec3 I, vec3 normal, float ratio)
{
throw new NotImplementedException();
}
public static vec3 normalize(vec3 v)
{
throw new NotImplementedException();
}
public static vec3 mix(vec3 left, vec3 right, float alpha)
{
throw new NotImplementedException();
}
public static vec3 cross(vec3 left, vec3 right)
{
throw new NotImplementedException();
}
public static float length(vec3 v)
{
throw new NotImplementedException();
}
public static float dot(vec3 left, vec3 right)
{
throw new NotImplementedException();
}