private bool SetShaderParameters(DeviceContext deviceContext, Matrix worldMatrix, Matrix viewMatrix, Matrix projectionMatrix, ShaderResourceView[] textures, Vector3 lightDirection, Vector4 diffuseColor, Vector3 cameraPosition, Vector4 specularColor, float specularPower)
{
try
{
#region Constant Matrix Buffer
// Transpose the matrices to prepare them for shader.
worldMatrix.Transpose();
viewMatrix.Transpose();
projectionMatrix.Transpose();
// Lock the constant buffer so it can be written to.
DataStream mappedResource;
deviceContext.MapSubresource(ConstantMatrixBuffer, MapMode.WriteDiscard, SharpDX.Direct3D11.MapFlags.None, out mappedResource);
// Copy the matrices into the constant buffer.
var matrixBuffer = new MatrixBuffer()
{
world = worldMatrix,
view = viewMatrix,
projection = projectionMatrix
};
mappedResource.Write(matrixBuffer);
// Unlock the constant buffer.
deviceContext.UnmapSubresource(ConstantMatrixBuffer, 0);
// Set the position of the constant buffer in the vertex shader.
var bufferNumber = 0;
// Finally set the constant buffer in the vertex shader with the updated values.
deviceContext.VertexShader.SetConstantBuffer(bufferNumber, ConstantMatrixBuffer);
// Set shader resource in the pixel shader.
deviceContext.PixelShader.SetShaderResources(0, textures);
#endregion
#region Constant Light Buffer
// Lock the light constant buffer so it can be written to.
deviceContext.MapSubresource(ConstantLightBuffer, MapMode.WriteDiscard, SharpDX.Direct3D11.MapFlags.None, out mappedResource);
// Copy the lighting variables into the constant buffer.
var lightBuffer = new LightBuffer()
{
diffuseColor = diffuseColor,
lightDirection = lightDirection,
specularColor = specularColor,
specularPower = specularPower,
};
mappedResource.Write(lightBuffer);
// Unlock the constant buffer.
deviceContext.UnmapSubresource(ConstantLightBuffer, 0);
// Set the position of the light constant buffer in the pixel shader.
bufferNumber = 0;
// Finally set the light constant buffer in the pixel shader with the updated values.
deviceContext.PixelShader.SetConstantBuffer(bufferNumber, ConstantLightBuffer);
#endregion
#region Constant Camera Buffer
// Lock the camera constant buffer so it can be written to.
deviceContext.MapSubresource(ConstantCameraBuffer, MapMode.WriteDiscard, SharpDX.Direct3D11.MapFlags.None, out mappedResource);
// Copy the lighting variables into the constant buffer.
var cameraBuffer = new CameraBuffer()
{
cameraPosition = cameraPosition,
padding = 0.0f
};
mappedResource.Write(cameraBuffer);
// Unlock the constant buffer.
deviceContext.UnmapSubresource(ConstantCameraBuffer, 0);
// Set the position of the light constant buffer in the pixel shader.
bufferNumber = 1;
// Now set the camera constant buffer in the vertex shader with the updated values.
deviceContext.VertexShader.SetConstantBuffer(bufferNumber, ConstantCameraBuffer);
#endregion
return true;
}
catch (Exception)
{
return false;
}
}
private bool SetShaderParameters(DeviceContext deviceContext, Matrix worldMatrix, Matrix viewMatrix, Matrix projectionMatrix, ShaderResourceView texture, Vector3 lightDirection, Vector4 ambientColor, Vector4 diffuseColor, Vector3 cameraPosition, Vector4 specularColor, float specularPower)
{
try
{
DataStream mappedResource;
#region Constant Matrix Buffer
// Transpose the matrices to prepare them for shader.
worldMatrix.Transpose();
viewMatrix.Transpose();
projectionMatrix.Transpose();
// Lock the matrix constant buffer so it can be written to.
deviceContext.MapSubresource(ConstantMatrixBuffer, MapMode.WriteDiscard, SharpDX.Direct3D11.MapFlags.None, out mappedResource);
// Copy the matrices into the constant buffer.
var matrixBuffer = new MatrixBuffer()
{
world = worldMatrix,
view = viewMatrix,
projection = projectionMatrix
};
mappedResource.Write(matrixBuffer);
// Unlock the constant buffer.
deviceContext.UnmapSubresource(ConstantMatrixBuffer, 0);
// Set the position of the constant buffer in the vertex shader.
var bufferNumber = 0;
// Finally set the constant buffer in the vertex shader with the updated values.
deviceContext.VertexShader.SetConstantBuffer(bufferNumber, ConstantMatrixBuffer);
// Set shader resource in the pixel shader.
deviceContext.PixelShader.SetShaderResource(0, texture);
#endregion
#region Constant Camera Buffer
// Lock the camera constant buffer so it can be written to.
deviceContext.MapSubresource(ConstantCameraBuffer, MapMode.WriteDiscard, SharpDX.Direct3D11.MapFlags.None, out mappedResource);
// Copy the lighting variables into the constant buffer.
var cameraBuffer = new CameraBuffer()
{
cameraPosition = cameraPosition,
padding = 0.0f
};
mappedResource.Write(cameraBuffer);
// Unlock the constant buffer.
deviceContext.UnmapSubresource(ConstantCameraBuffer, 0);
// Set the position of the light constant buffer in the pixel shader.
bufferNumber = 1;
// Now set the camera constant buffer in the vertex shader with the updated values.
deviceContext.VertexShader.SetConstantBuffer(bufferNumber, ConstantCameraBuffer);
#endregion
#region Constant Light Buffer
// Lock the light constant buffer so it can be written to.
deviceContext.MapSubresource(ConstantLightBuffer, MapMode.WriteDiscard, SharpDX.Direct3D11.MapFlags.None, out mappedResource);
// Copy the lighting variables into the constant buffer.
var lightBuffer = new LightBuffer()
{
ambientColor = ambientColor,
diffuseColor = diffuseColor,
lightDirection = lightDirection,
specularColor = specularColor,
specularPower = specularPower
};
mappedResource.Write(lightBuffer);
// Unlock the constant buffer.
deviceContext.UnmapSubresource(ConstantLightBuffer, 0);
// Set the position of the light constant buffer in the pixel shader.
bufferNumber = 0;
// Finally set the light constant buffer in the pixel shader with the updated values.
deviceContext.PixelShader.SetConstantBuffer(bufferNumber, ConstantLightBuffer);
#endregion
return(true);
}
catch (Exception)
{
return(false);
}
}
