private static bool Compare(PCameraInfo f1, PCameraInfo f2)
{
bool ret = SoftMath.FloatEqual(f1.fieldOfView, f2.fieldOfView) && SoftMath.FloatEqual(f1.nearPlane, f2.nearPlane) &&
SoftMath.FloatEqual(f1.farPlane, f2.farPlane);
return(ret);
}
private void FlipTriangle(TriangleVertex vertex, RenderPassMode passMode)
{
// 三角形转到屏幕坐标系
RenderTarget target = this.Target;
if (target != null)
{
if (IsShowVertexLog)
{
DebugVertexLog(vertex);
}
// 这里是VertexShader的部分
// 世界坐标系到屏幕坐标系
if (passMode.vertexShader == null)
{
// 默认的一个处理
//vertex.triangle.Trans(this.WorldToScreenPointEvt2, false);
vertex.triangle.MulMatrix(this.Shader_MVP_Matrix);
}
else
{
InitPassMode(passMode);
passMode.vertexShader.Main(ref vertex);
}
// 做个三角形的判断
if (vertex.IsAllZGreateOne)
{
return;
}
// 这里做背面剔除
if (SoftMath.Is_MVP_Culled(passMode.Cull, vertex.triangle))
{
return;
}
vertex.triangle.MulMatrix(this.LinkerScreenMatrix);
#if _Use_FlipTrangle2
target.FlipScreenTriangle2(this, vertex, passMode);
#else
target.FlipScreenTriangle(this, vertex, passMode);
#endif
}
}
// 摄影机剔除
// visiableList: 可见列表
public void CameraCull(SoftCamera camera, Dictionary <int, SoftRenderObject> objs, out NativeList <int> visiableList)
{
visiableList = null;
if (camera == null)
{
return;
}
if (objs == null || objs.Count <= 0)
{
m_Objs.Clear(false);
return;
}
m_Objs.Clear(false);
// 简单处理，直接干
var iter = objs.GetEnumerator();
while (iter.MoveNext())
{
SoftRenderObject obj = iter.Current.Value;
if (obj != null && obj.CanRenderer)
{
switch (obj.ObjType)
{
case SoftRenderObjType.MeshRender:
SoftSpere spere = (obj as SoftMeshRenderer).WorldBoundSpere;
// if (!camera.IsOpenCameraSpereCull || SoftMath.BoundSpereInCamera(spere, camera)) {
if (!camera.IsOpenCameraSpereCull || SoftMath.BoundSpereInCamera_UseMVP(spere, camera))
{
m_Objs.Add(obj.InstanceId);
}
break;
}
}
}
iter.Dispose();
if (m_Objs.Count > 0)
{
visiableList = m_Objs;
}
}
private static bool Compare(OCameraInfo f1, OCameraInfo f2)
{
bool ret = SoftMath.FloatEqual(f1.Size, f2.Size) && SoftMath.FloatEqual(f1.nearPlane, f2.nearPlane) && SoftMath.FloatEqual(f1.farPlane, f2.farPlane);
return(ret);
}
public override bool Main(PixelData data, out Color frag)
{
var target = this.param.target;
var tex = data.mainTex;
if (tex != null && target != null)
{
float dw = 1f / tex.Width;
float dh = 1f / tex.Height;
Vector2 uv = data.info.uv1;
int u = data.info.u - 1;
int v = data.info.v - 1;
// 水平变化率
float ddx = 0f;
if (u > 0)
{
var info1 = target.FrontColorBuffer.GetItem(u, data.info.v);
if (info1.isFill != 0)
{
// UV变化率 除以1是因为是1距离的变化
Vector2 uv1 = info1.uv1;
ddx = (((uv - uv1).magnitude) / 1f) / dw;
}
}
// 垂直变化率
float ddy = 0f;
if (v > 0)
{
// 这里和真实SHADER还是有点不一样的，这个是直接拿设备【当前】所有模型渲染后结果的BUFFER，SHADER并不是
var info2 = target.FrontColorBuffer.GetItem(data.info.u, v);
if (info2.isFill != 0)
{
Vector2 uv2 = info2.uv1;
ddy = (((uv - uv2).magnitude) / 1f) / dh;
}
}
float maxDD = Mathf.Max(ddx, ddy);
if (maxDD >= 0)
{
float n = Mathf.Log(maxDD, 2);
int s = Mathf.FloorToInt(n);
int e = Mathf.CeilToInt(n);
float t = SoftMath.GetDeltaT(s, e, n);
int idx = s - 1;
idx = Mathf.Clamp(idx, 0, m_ColorCnt - 1);
Color sC = m_MipColor[idx];
idx = e - 1;
idx = Mathf.Clamp(idx, 0, m_ColorCnt - 1);
Color eC = m_MipColor[idx];
frag = SoftMath.GetColorDeltaT(sC, eC, t);
}
else
{
frag = Color.black;
}
}
else
{
frag = Color.black;
}
return(true);
}