//
protected virtual void RebuildCommandBuffer()
{
renderBuffer.Clear();
renderBuffer.BeginSample(profileHighlightingSystem);
// Prepare and clear render target
renderBuffer.SetRenderTarget(highlightingBufferID);
renderBuffer.ClearRenderTarget(true, true, colorClear);
// Fill buffer with highlighters rendering commands
HighlighterCore.FillBuffer(renderBuffer);
RenderTextureDescriptor desc = cachedDescriptor;
desc.width = highlightingBuffer.width / _downsampleFactor;
desc.height = highlightingBuffer.height / _downsampleFactor;
desc.depthBufferBits = 0;
// Create two buffers for blurring the image
renderBuffer.GetTemporaryRT(ShaderPropertyID._HighlightingBlur1, desc, FilterMode.Bilinear);
renderBuffer.GetTemporaryRT(ShaderPropertyID._HighlightingBlur2, desc, FilterMode.Bilinear);
renderBuffer.Blit(highlightingBufferID, blur1ID);
// Blur the small texture
bool oddEven = true;
for (int i = 0; i < _iterations; i++)
{
float off = _blurMinSpread + _blurSpread * i;
renderBuffer.SetGlobalFloat(ShaderPropertyID._HighlightingBlurOffset, off);
if (oddEven)
{
renderBuffer.Blit(blur1ID, blur2ID, blurMaterial);
}
else
{
renderBuffer.Blit(blur2ID, blur1ID, blurMaterial);
}
oddEven = !oddEven;
}
// Upscale blurred texture and cut stencil from it
renderBuffer.Blit(oddEven ? blur1ID : blur2ID, highlightingBufferID, cutMaterial);
// Cleanup
renderBuffer.ReleaseTemporaryRT(ShaderPropertyID._HighlightingBlur1);
renderBuffer.ReleaseTemporaryRT(ShaderPropertyID._HighlightingBlur2);
renderBuffer.EndSample(profileHighlightingSystem);
}
// Recursively follows hierarchy of objects from t, searches for Renderers and adds them to the list.
// Breaks if another Highlighter component found
private void GrabRenderers(Transform t)
{
GameObject g = t.gameObject;
// Find all Renderers on the current GameObject g, filter them and add to the sRendererData list
g.GetComponents <Renderer>(sRenderers);
for (int i = 0, imax = sRenderers.Count; i < imax; i++)
{
Renderer renderer = sRenderers[i];
if (rendererFilterToUse(renderer, sSubmeshIndices))
{
RendererData rendererData = GetRendererDataInstance();
rendererData.renderer = renderer;
List <int> submeshIndices = rendererData.submeshIndices;
submeshIndices.Clear();
submeshIndices.AddRange(sSubmeshIndices);
sRendererData.Add(rendererData);
}
sSubmeshIndices.Clear();
}
sRenderers.Clear();
// Return if transform t doesn't have any children
int childCount = t.childCount;
if (childCount == 0)
{
return;
}
// Recursively cache renderers on all child GameObjects
for (int i = 0; i < childCount; i++)
{
Transform childTransform = t.GetChild(i);
// Do not cache Renderers of this childTransform in case it has it's own Highlighter component
HighlighterCore h = childTransform.GetComponent <HighlighterCore>();
if (h != null)
{
continue;
}
GrabRenderers(childTransform);
}
}