//---------------------------------------------------------------------------------------------------------------------------------------------------
private void RenderShadowSplit(ref ShadowSliceData slice, Vector3 lightDirection, Matrix4x4 proj, Matrix4x4 view, ref ScriptableRenderContext loop, DrawShadowsSettings settings)
{
var commandBuffer = new CommandBuffer {
name = "ShadowSetup"
};
// Set viewport / matrices etc
commandBuffer.SetViewport(new Rect(slice.atlasX, slice.atlasY, slice.shadowResolution, slice.shadowResolution));
//commandBuffer.ClearRenderTarget (true, true, Color.green);
commandBuffer.SetGlobalVector("g_vLightDirWs", new Vector4(lightDirection.x, lightDirection.y, lightDirection.z));
commandBuffer.SetViewProjectionMatrices(view, proj);
// commandBuffer.SetGlobalDepthBias (1.0F, 1.0F);
loop.ExecuteCommandBuffer(commandBuffer);
commandBuffer.Dispose();
// Render
loop.DrawShadows(ref settings);
}
private void SetupShadowSplitMatrices(ref ShadowSliceData lightData, Matrix4x4 proj, Matrix4x4 view)
{
var matScaleBias = Matrix4x4.identity;
matScaleBias.m00 = 0.5f;
matScaleBias.m11 = 0.5f;
matScaleBias.m22 = 0.5f;
matScaleBias.m03 = 0.5f;
matScaleBias.m13 = 0.5f;
matScaleBias.m23 = 0.5f;
var matTile = Matrix4x4.identity;
matTile.m00 = (float)lightData.shadowResolution / (float)m_Settings.shadowAtlasWidth;
matTile.m11 = (float)lightData.shadowResolution / (float)m_Settings.shadowAtlasHeight;
matTile.m03 = (float)lightData.atlasX / (float)m_Settings.shadowAtlasWidth;
matTile.m13 = (float)lightData.atlasY / (float)m_Settings.shadowAtlasHeight;
lightData.shadowTransform = matTile * matScaleBias * proj * view;
}