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Moved transfer function functions to their own file

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Martin Opat
2025-01-11 11:50:19 +01:00
parent 417913af2b
commit 1711bcf756
5 changed files with 200 additions and 204 deletions
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35
src/consts.cu
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@@ -1,5 +1,31 @@
#include "consts.h"
// ----------------------- Colour mapping -----------------------
__constant__ ColorStop d_stopsPythonLike[5];
__constant__ ColorStop d_stopsGrayscale[2];
__constant__ ColorStop d_stopsBluePurleRed[3];
const ColorStop h_stopsPythonLike[] = {
{ 0.0f, Color3::init(0.2298057f, 0.29871797f, 0.75368315f) }, // Dark Blue
{ 0.25f, Color3::init(0.23437708f, 0.30554173f, 0.75967953f) }, // Mid Blue
{ 0.5f, Color3::init(0.27582712f, 0.36671692f, 0.81255294f) }, // White
{ 0.75f, Color3::init(0.79606387f, 0.84869321f, 0.93347147f) }, // Light Orange
{ 1.0f, Color3::init(0.70567316f, 0.01555616f, 0.15023281f) } // Red
};
const ColorStop h_stopsGrayscale[] = {
{ 0.0f, Color3::init(0.0f, 0.0f, 0.0f) }, // No colour
{ 1.0f, Color3::init(1.0f, 1.0f, 1.0f) } // White
};
const ColorStop h_stopsBluePurleRed[] = {
{ 0.0f, Color3::init(0.0f, 0.0f, 1.0f) }, // deep blue
{ 0.5f, Color3::init(0.5f, 0.0f, 0.5f) }, // purple
{ 1.0f, Color3::init(1.0f, 0.0f, 0.0f) } // deep red
};
// ----------------------- Camera and Light -----------------------
__device__ Point3 d_cameraPos;
__device__ Vec3 d_cameraDir;
__device__ Vec3 d_cameraUp;
@@ -12,7 +38,16 @@ Vec3 h_cameraDir = (center - h_cameraPos).normalize();
Vec3 h_cameraUp = Vec3::init(0.0, 0.0, 1.0).normalize();
Point3 h_lightPos = Point3::init(1.5, 2.0, -1.0);
// Copy the above values to the device
void copyConstantsToDevice() {
// ----------------------- Colour mapping -----------------------
cudaMemcpyToSymbol(d_stopsPythonLike, h_stopsPythonLike, sizeof(h_stopsPythonLike));
cudaMemcpyToSymbol(d_stopsGrayscale, h_stopsGrayscale, sizeof(h_stopsGrayscale));
cudaMemcpyToSymbol(d_stopsBluePurleRed, h_stopsBluePurleRed, sizeof(h_stopsBluePurleRed));
// ----------------------- Camera and Light -----------------------
cudaMemcpyToSymbol(d_cameraPos, &h_cameraPos, sizeof(Point3));
cudaMemcpyToSymbol(d_cameraDir, &h_cameraDir, sizeof(Vec3));
cudaMemcpyToSymbol(d_cameraUp, &h_cameraUp, sizeof(Vec3));