public static void GenerateCubemapMips(DeviceContext context, string shader, TextureObject targetTexture, TextureObject sourceTexture)
{
for (int m = 0; m < targetTexture.m_Mips; ++m)
{
for (int i = 0; i < 6; ++i)
{
dynamic cdb = m_CubemapDownsampleBuffer;
cdb.g_Mip = (float)m;
cdb.g_Face = i;
m_CubemapDownsampleBuffer.CompileAndBind(context);
RenderTargetSet.BindTextureAsRenderTarget(context, targetTexture.m_ArrayRenderTargetViews[m * 6 + i], null, targetTexture.m_Width >> m, targetTexture.m_Height >> m);
context.PixelShader.SetShaderResource(PostEffectHelper.m_RandomNumbersBuffer.m_ShaderResourceView, 39);
context.PixelShader.SetShaderResource(sourceTexture.m_ShaderResourceView, 0);
PostEffectHelper.RenderFullscreenTriangle(context, shader);
RenderTargetSet.BindNull(context);
}
}
}
public static void RenderCubemap(DeviceContext context, TextureObject targetTexture, TextureObject targetDepth, SimpleSceneWrapper sceneWrapper, Vector3 position, float range, bool depthOnly = false, Color4 clearColor = new Color4())
{
//using (new GpuProfilePoint(context, "CubemapRendering"))
{
// some hardcoded near plane
Matrix projectionMatrix = Matrix.PerspectiveFovLH((float)Math.PI / 2.0f, 1.0f, 0.05f, range);
ContextHelper.SetDepthStencilState(context, ContextHelper.DepthConfigurationType.DepthCompare);
// set the shaders
context.VertexShader.Set(ShaderManager.GetVertexShader("VertexScene"));
context.PixelShader.Set(depthOnly ? null : ShaderManager.GetPixelShader("PixelSceneSimple"));
dynamic cvpb = m_CurrentViewportBuffer;
for (int i = 0; i < 6; ++i)
{
Vector3 lookAt = new Vector3();
Vector3 upVec = new Vector3();
switch (i)
{
case 0:
lookAt = new Vector3(1.0f, 0.0f, 0.0f);
upVec = new Vector3(0.0f, 1.0f, 0.0f);
break;
case 1:
lookAt = new Vector3(-1.0f, 0.0f, 0.0f);
upVec = new Vector3(0.0f, 1.0f, 0.0f);
break;
case 2:
lookAt = new Vector3(0.0f, 1.0f, 0.0f);
upVec = new Vector3(0.0f, 0.0f, -1.0f);
break;
case 3:
lookAt = new Vector3(0.0f, -1.0f, 0.0f);
upVec = new Vector3(0.0f, 0.0f, 1.0f);
break;
case 4:
lookAt = new Vector3(0.0f, 0.0f, 1.0f);
upVec = new Vector3(0.0f, 1.0f, 0.0f);
break;
case 5:
lookAt = new Vector3(0.0f, 0.0f, -1.0f);
upVec = new Vector3(0.0f, 1.0f, 0.0f);
break;
}
Matrix viewMatrix = Matrix.LookAtLH(position, position + lookAt, upVec);
cvpb.g_ProjMatrix = projectionMatrix;
cvpb.g_ViewMatrix = viewMatrix;
cvpb.g_ViewProjMatrix = viewMatrix * projectionMatrix;
{
context.ClearRenderTargetView(targetTexture.m_ArrayRenderTargetViews[i], clearColor);
context.ClearDepthStencilView(targetDepth.m_ArrayDepthStencilViews[i], DepthStencilClearFlags.Depth, 1.0f, 0);
RenderTargetSet.BindTextureAsRenderTarget(context, targetTexture.m_ArrayRenderTargetViews[i], targetDepth.m_ArrayDepthStencilViews[i], targetTexture.m_Width, targetTexture.m_Height);
m_CurrentViewportBuffer.CompileAndBind(context);
// render triangles
sceneWrapper.Render(context);
RenderTargetSet.BindNull(context);
}
}
ContextHelper.SetDepthStencilState(context, ContextHelper.DepthConfigurationType.NoDepth);
}
}