59 lines
2.6 KiB
Plaintext
59 lines
2.6 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__ Vec3 d_cameraUp;
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__device__ Point3 d_lightPos;
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__device__ Color3 d_backgroundColor;
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// Point3 h_cameraPos = Point3::init(300.0f, 200.0f, -700.0f); // Camera for full data set
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Point3 h_cameraPos = Point3::init(50.0f, -50.0f, -75.0f); // Camera for partially trimmed data set
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Vec3 center = Vec3::init((float)VOLUME_WIDTH/2.0f, (float)VOLUME_HEIGHT/2.0f, (float)VOLUME_DEPTH/2.0f);
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Vec3 h_cameraDir = (center - h_cameraPos).normalize();
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Vec3 h_cameraUp = Vec3::init(0.0, 1.0, 0.0).normalize();
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Point3 h_lightPos = Point3::init(1.5, 2.0, -1.0);
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Color3 h_backgroundColor = Color3::init(0.1f, 0.1f, 0.1f);
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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_cameraPos, &h_cameraPos, sizeof(Point3));
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cudaMemcpyToSymbol(d_cameraDir, &h_cameraDir, sizeof(Vec3));
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cudaMemcpyToSymbol(d_cameraUp, &h_cameraUp, sizeof(Vec3));
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cudaMemcpyToSymbol(d_lightPos, &h_lightPos, sizeof(Point3));
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cudaMemcpyToSymbol(d_backgroundColor, &h_backgroundColor, sizeof(Color3));
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}
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