54 lines
2.0 KiB
Plaintext
54 lines
2.0 KiB
Plaintext
#include "consts.h"
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// ----------------------- Colour mapping -----------------------
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__constant__ ColorStop d_stopsPythonLike[5];
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__constant__ ColorStop d_stopsGrayscale[2];
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__constant__ ColorStop d_stopsBluePurleRed[3];
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const ColorStop h_stopsPythonLike[] = {
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{ 0.0f, Color3::init(0.2298057f, 0.29871797f, 0.75368315f) }, // Dark Blue
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{ 0.25f, Color3::init(0.23437708f, 0.30554173f, 0.75967953f) }, // Mid Blue
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{ 0.5f, Color3::init(0.27582712f, 0.36671692f, 0.81255294f) }, // White
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{ 0.75f, Color3::init(0.79606387f, 0.84869321f, 0.93347147f) }, // Light Orange
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{ 1.0f, Color3::init(0.70567316f, 0.01555616f, 0.15023281f) } // Red
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};
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const ColorStop h_stopsGrayscale[] = {
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{ 0.0f, Color3::init(0.0f, 0.0f, 0.0f) }, // No colour
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{ 1.0f, Color3::init(1.0f, 1.0f, 1.0f) } // White
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};
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const ColorStop h_stopsBluePurleRed[] = {
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{ 0.0f, Color3::init(0.0f, 0.0f, 1.0f) }, // deep blue
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{ 0.5f, Color3::init(0.5f, 0.0f, 0.5f) }, // purple
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{ 1.0f, Color3::init(1.0f, 0.0f, 0.0f) } // deep red
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};
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// ----------------------- Camera and Light -----------------------
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__device__ Point3 d_cameraPos;
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__device__ Vec3 d_cameraDir;
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__device__ Point3 d_lightPos;
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__device__ Color3 d_backgroundColor;
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__device__ Vec3 d_cameraUp;
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Vec3 h_cameraUp = Vec3::init(0.0, 1.0, 0.0).normalize();
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// Copy the above values to the device
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void copyConstantsToDevice() {
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// ----------------------- Colour mapping -----------------------
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cudaMemcpyToSymbol(d_stopsPythonLike, h_stopsPythonLike, sizeof(h_stopsPythonLike));
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cudaMemcpyToSymbol(d_stopsGrayscale, h_stopsGrayscale, sizeof(h_stopsGrayscale));
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cudaMemcpyToSymbol(d_stopsBluePurleRed, h_stopsBluePurleRed, sizeof(h_stopsBluePurleRed));
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// ----------------------- Camera and Light -----------------------
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cudaMemcpyToSymbol(d_cameraUp, &h_cameraUp, sizeof(Vec3));
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}
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// ----------------------- TransferFunction -----------------------
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__device__ float d_opacityK;
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__device__ float d_sigmoidOne;
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__device__ float d_sigmoidTwo;
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