ccdemos/spheres_shadow.cc
author Radek Brich <radek.brich@devl.cz>
Thu, 29 Nov 2007 18:30:16 +0100
branchpyrit
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child 22 76b7bd51d64a
permissions -rw-r--r--
new C++ demo: realtime.cc (real-time scene viewer using SDL) Quaternion, Camera::rotate and Camera::move replace all printf's with infomsg wrapper don't allocate memory in Raytracer::render, just blindly write to provided address don't creat Container object in Raytracer, let user do it
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#include "raytracer.h"
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#include "image.h"
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int main()
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{
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	Raytracer rt;
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	rt.setThreads(1);
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	Light light1(Vector3(0.0, 5.0, -5.0), Colour(0.7, 0.3, 0.6));
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	rt.addlight(&light1);
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	Light light2(Vector3(-2.0, 10.0, -2.0), Colour(0.4, 0.6, 0.3));
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	rt.addlight(&light2);
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	Material mat0(Colour(0.7, 0.7, 0.7));
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	Box box(Vector3(-20.0, -1.2, -20.0), Vector3(20.0, -1.0, 20.0), &mat0);
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	rt.addshape(&box);
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	Material mat1(Colour(1.0, 0.0, 0.0));
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	Sphere bigsphere(Vector3(3.0, 2.0, -7.0), 3.0, &mat1);
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	rt.addshape(&bigsphere);
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	Material mat2(Colour(0.0, 1.0, 0.0));
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	Sphere smallsphere(Vector3(-5.5, 1.5, -8.0), 2.0, &mat2);
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	rt.addshape(&smallsphere);
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	Material mat3(Colour(0.0, 0.0, 1.0));
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	Sphere tinysphere(Vector3(-1.2, 0.0, -2.0), 0.5, &mat3);
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	rt.addshape(&tinysphere);
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	Camera cam;
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	cam.setEye(Vector3(0,0,15));
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	rt.setCamera(&cam);
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	int w = 800;
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	int h = 600;
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	float *fdata = (float *) malloc(w*h*3*sizeof(float));
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	rt.render(w, h, fdata);
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	struct image *img;
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	new_image(&img, w, h, 3);
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	float *fd = fdata;
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	for (char *cd = img->data; cd != img->data + w*h*3; cd++, fd++) {
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		if (*fd > 1.0)
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			*cd = 255;
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		else
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			*cd = (unsigned char)(*fd * 255.0);
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	}
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	free(fdata);
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	save_png("spheres_shadow.png", img);
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	destroy_image(&img);
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}