Updated Embree library to version 2.2
This commit is contained in:
schuellc
@@ -0,0 +1,499 @@
|
||||
// ======================================================================== //
|
||||
// Copyright 2009-2013 Intel Corporation //
|
||||
// //
|
||||
// Licensed under the Apache License, Version 2.0 (the "License"); //
|
||||
// you may not use this file except in compliance with the License. //
|
||||
// You may obtain a copy of the License at //
|
||||
// //
|
||||
// http://www.apache.org/licenses/LICENSE-2.0 //
|
||||
// //
|
||||
// Unless required by applicable law or agreed to in writing, software //
|
||||
// distributed under the License is distributed on an "AS IS" BASIS, //
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. //
|
||||
// See the License for the specific language governing permissions and //
|
||||
// limitations under the License. //
|
||||
// ======================================================================== //
|
||||
|
||||
#include "../common/tutorial/tutorial_device.h"
|
||||
|
||||
const int numPhi = 5;
|
||||
const int numTheta = 2*numPhi;
|
||||
|
||||
/* render function to use */
|
||||
renderPixelFunc renderPixel;
|
||||
|
||||
// ======================================================================== //
|
||||
// User defined instancing //
|
||||
// ======================================================================== //
|
||||
|
||||
struct Instance
|
||||
{
|
||||
ALIGNED_STRUCT
|
||||
unsigned int geometry;
|
||||
RTCScene object;
|
||||
int userID;
|
||||
AffineSpace3f local2world;
|
||||
AffineSpace3f world2local;
|
||||
Vec3f lower;
|
||||
Vec3f upper;
|
||||
};
|
||||
|
||||
void instanceBoundsFunc(const Instance* instance, size_t item, RTCBounds* bounds_o)
|
||||
{
|
||||
Vec3f l = instance->lower;
|
||||
Vec3f u = instance->upper;
|
||||
Vec3f p000 = xfmPoint(instance->local2world,Vec3f(l.x,l.y,l.z));
|
||||
Vec3f p001 = xfmPoint(instance->local2world,Vec3f(l.x,l.y,u.z));
|
||||
Vec3f p010 = xfmPoint(instance->local2world,Vec3f(l.x,u.y,l.z));
|
||||
Vec3f p011 = xfmPoint(instance->local2world,Vec3f(l.x,u.y,u.z));
|
||||
Vec3f p100 = xfmPoint(instance->local2world,Vec3f(u.x,l.y,l.z));
|
||||
Vec3f p101 = xfmPoint(instance->local2world,Vec3f(u.x,l.y,u.z));
|
||||
Vec3f p110 = xfmPoint(instance->local2world,Vec3f(u.x,u.y,l.z));
|
||||
Vec3f p111 = xfmPoint(instance->local2world,Vec3f(u.x,u.y,u.z));
|
||||
Vec3f lower = min(min(min(p000,p001),min(p010,p011)),min(min(p100,p101),min(p110,p111)));
|
||||
Vec3f upper = max(max(max(p000,p001),max(p010,p011)),max(max(p100,p101),max(p110,p111)));
|
||||
bounds_o->lower_x = lower.x;
|
||||
bounds_o->lower_y = lower.y;
|
||||
bounds_o->lower_z = lower.z;
|
||||
bounds_o->upper_x = upper.x;
|
||||
bounds_o->upper_y = upper.y;
|
||||
bounds_o->upper_z = upper.z;
|
||||
}
|
||||
|
||||
void instanceIntersectFunc(const Instance* instance, RTCRay& ray, size_t item)
|
||||
{
|
||||
const Vec3f ray_org = ray.org;
|
||||
const Vec3f ray_dir = ray.dir;
|
||||
const int geomID = ray.geomID;
|
||||
ray.org = xfmPoint (instance->world2local,ray_org);
|
||||
ray.dir = xfmVector(instance->world2local,ray_dir);
|
||||
ray.geomID = RTC_INVALID_GEOMETRY_ID;
|
||||
rtcIntersect(instance->object,ray);
|
||||
ray.org = ray_org;
|
||||
ray.dir = ray_dir;
|
||||
if (ray.geomID == RTC_INVALID_GEOMETRY_ID) ray.geomID = geomID;
|
||||
else ray.instID = instance->userID;
|
||||
}
|
||||
|
||||
void instanceOccludedFunc(const Instance* instance, RTCRay& ray, size_t item)
|
||||
{
|
||||
const Vec3f ray_org = ray.org;
|
||||
const Vec3f ray_dir = ray.dir;
|
||||
ray.org = xfmPoint (instance->world2local,ray_org);
|
||||
ray.dir = xfmVector(instance->world2local,ray_dir);
|
||||
rtcOccluded(instance->object,ray);
|
||||
ray.org = ray_org;
|
||||
ray.dir = ray_dir;
|
||||
}
|
||||
|
||||
Instance* createInstance (RTCScene scene, RTCScene object, int userID, Vec3f lower, Vec3f upper)
|
||||
{
|
||||
Instance* instance = new Instance;
|
||||
instance->object = object;
|
||||
instance->userID = userID;
|
||||
instance->lower = lower;
|
||||
instance->upper = upper;
|
||||
instance->local2world.l.vx = Vec3f(1,0,0);
|
||||
instance->local2world.l.vy = Vec3f(0,1,0);
|
||||
instance->local2world.l.vz = Vec3f(0,0,1);
|
||||
instance->local2world.p = Vec3f(0,0,0);
|
||||
instance->geometry = rtcNewUserGeometry(scene,1);
|
||||
rtcSetUserData(scene,instance->geometry,instance);
|
||||
rtcSetBoundsFunction(scene,instance->geometry,(RTCBoundsFunc)&instanceBoundsFunc);
|
||||
rtcSetIntersectFunction(scene,instance->geometry,(RTCIntersectFunc)&instanceIntersectFunc);
|
||||
rtcSetOccludedFunction (scene,instance->geometry,(RTCOccludedFunc )&instanceOccludedFunc);
|
||||
return instance;
|
||||
}
|
||||
|
||||
void updateInstance (RTCScene scene, Instance* instance)
|
||||
{
|
||||
unsigned int geometry = instance->geometry;
|
||||
instance->world2local = rcp(instance->local2world);
|
||||
rtcUpdate(scene,instance->geometry);
|
||||
}
|
||||
|
||||
// ======================================================================== //
|
||||
// User defined sphere geometry //
|
||||
// ======================================================================== //
|
||||
|
||||
struct Sphere
|
||||
{
|
||||
ALIGNED_STRUCT
|
||||
Vec3f p; //!< position of the sphere
|
||||
float r; //!< radius of the sphere
|
||||
unsigned int geomID;
|
||||
};
|
||||
|
||||
void sphereBoundsFunc(const Sphere* spheres, size_t item, RTCBounds* bounds_o)
|
||||
{
|
||||
const Sphere& sphere = spheres[item];
|
||||
bounds_o->lower_x = sphere.p.x-sphere.r;
|
||||
bounds_o->lower_y = sphere.p.y-sphere.r;
|
||||
bounds_o->lower_z = sphere.p.z-sphere.r;
|
||||
bounds_o->upper_x = sphere.p.x+sphere.r;
|
||||
bounds_o->upper_y = sphere.p.y+sphere.r;
|
||||
bounds_o->upper_z = sphere.p.z+sphere.r;
|
||||
}
|
||||
|
||||
void sphereIntersectFunc(const Sphere* spheres, RTCRay& ray, size_t item)
|
||||
{
|
||||
const Sphere& sphere = spheres[item];
|
||||
const Vec3f v = sub(ray.org,sphere.p);
|
||||
const float A = dot(ray.dir,ray.dir);
|
||||
const float B = 2.0f*dot(v,ray.dir);
|
||||
const float C = dot(v,v) - sqr(sphere.r);
|
||||
const float D = B*B - 4.0f*A*C;
|
||||
if (D < 0.0f) return;
|
||||
const float Q = sqrt(D);
|
||||
const float rcpA = rcp(A);
|
||||
const float t0 = 0.5f*rcpA*(-B-Q);
|
||||
const float t1 = 0.5f*rcpA*(-B+Q);
|
||||
if ((ray.tnear < t0) & (t0 < ray.tfar)) {
|
||||
ray.u = 0.0f;
|
||||
ray.v = 0.0f;
|
||||
ray.tfar = t0;
|
||||
ray.geomID = sphere.geomID;
|
||||
ray.primID = item;
|
||||
ray.Ng = sub(add(ray.org,mul(t0,ray.dir)),sphere.p);
|
||||
}
|
||||
if ((ray.tnear < t1) & (t1 < ray.tfar)) {
|
||||
ray.u = 0.0f;
|
||||
ray.v = 0.0f;
|
||||
ray.tfar = t1;
|
||||
ray.geomID = sphere.geomID;
|
||||
ray.primID = item;
|
||||
ray.Ng = sub(add(ray.org,mul(t1,ray.dir)),sphere.p);
|
||||
}
|
||||
}
|
||||
|
||||
void sphereOccludedFunc(const Sphere* spheres, RTCRay& ray, size_t item)
|
||||
{
|
||||
const Sphere& sphere = spheres[item];
|
||||
const Vec3f v = sub(ray.org,sphere.p);
|
||||
const float A = dot(ray.dir,ray.dir);
|
||||
const float B = 2.0f*dot(v,ray.dir);
|
||||
const float C = dot(v,v) - sqr(sphere.r);
|
||||
const float D = B*B - 4.0f*A*C;
|
||||
if (D < 0.0f) return;
|
||||
const float Q = sqrt(D);
|
||||
const float rcpA = rcp(A);
|
||||
const float t0 = 0.5f*rcpA*(-B-Q);
|
||||
const float t1 = 0.5f*rcpA*(-B+Q);
|
||||
if ((ray.tnear < t0) & (t0 < ray.tfar)) {
|
||||
ray.geomID = 0;
|
||||
}
|
||||
if ((ray.tnear < t1) & (t1 < ray.tfar)) {
|
||||
ray.geomID = 0;
|
||||
}
|
||||
}
|
||||
|
||||
Sphere* createAnalyticalSphere (RTCScene scene, Vec3f p, float r)
|
||||
{
|
||||
unsigned int geomID = rtcNewUserGeometry(scene,1);
|
||||
Sphere* sphere = new Sphere;
|
||||
sphere->p = p;
|
||||
sphere->r = r;
|
||||
sphere->geomID = geomID;
|
||||
rtcSetUserData(scene,geomID,sphere);
|
||||
rtcSetBoundsFunction(scene,geomID,(RTCBoundsFunc)&sphereBoundsFunc);
|
||||
rtcSetIntersectFunction(scene,geomID,(RTCIntersectFunc)&sphereIntersectFunc);
|
||||
rtcSetOccludedFunction (scene,geomID,(RTCOccludedFunc )&sphereOccludedFunc);
|
||||
return sphere;
|
||||
}
|
||||
|
||||
Sphere* createAnalyticalSpheres (RTCScene scene, size_t N)
|
||||
{
|
||||
unsigned int geomID = rtcNewUserGeometry(scene,N);
|
||||
Sphere* spheres = new Sphere[N];
|
||||
for (int i=0; i<N; i++) spheres[i].geomID = geomID;
|
||||
rtcSetUserData(scene,geomID,spheres);
|
||||
rtcSetBoundsFunction(scene,geomID,(RTCBoundsFunc)&sphereBoundsFunc);
|
||||
rtcSetIntersectFunction(scene,geomID,(RTCIntersectFunc)&sphereIntersectFunc);
|
||||
rtcSetOccludedFunction (scene,geomID,(RTCOccludedFunc )&sphereOccludedFunc);
|
||||
return spheres;
|
||||
}
|
||||
|
||||
// ======================================================================== //
|
||||
// Triangular sphere geometry //
|
||||
// ======================================================================== //
|
||||
|
||||
unsigned int createTriangulatedSphere (RTCScene scene, Vec3f p, float r)
|
||||
{
|
||||
/* create triangle mesh */
|
||||
unsigned int mesh = rtcNewTriangleMesh (scene, RTC_GEOMETRY_STATIC, 2*numTheta*(numPhi-1), numTheta*(numPhi+1));
|
||||
|
||||
/* map triangle and vertex buffers */
|
||||
Vertex* vertices = (Vertex*) rtcMapBuffer(scene,mesh,RTC_VERTEX_BUFFER);
|
||||
Triangle* triangles = (Triangle*) rtcMapBuffer(scene,mesh,RTC_INDEX_BUFFER);
|
||||
|
||||
/* create sphere */
|
||||
int tri = 0;
|
||||
const float rcpNumTheta = rcp((float)numTheta);
|
||||
const float rcpNumPhi = rcp((float)numPhi);
|
||||
for (int phi=0; phi<=numPhi; phi++)
|
||||
{
|
||||
for (int theta=0; theta<numTheta; theta++)
|
||||
{
|
||||
const float phif = phi*float(pi)*rcpNumPhi;
|
||||
const float thetaf = theta*2.0f*float(pi)*rcpNumTheta;
|
||||
|
||||
Vertex& v = vertices[phi*numTheta+theta];
|
||||
v.x = p.x + r*sin(phif)*sin(thetaf);
|
||||
v.y = p.y + r*cos(phif);
|
||||
v.z = p.z + r*sin(phif)*cos(thetaf);
|
||||
}
|
||||
if (phi == 0) continue;
|
||||
|
||||
for (int theta=1; theta<=numTheta; theta++)
|
||||
{
|
||||
int p00 = (phi-1)*numTheta+theta-1;
|
||||
int p01 = (phi-1)*numTheta+theta%numTheta;
|
||||
int p10 = phi*numTheta+theta-1;
|
||||
int p11 = phi*numTheta+theta%numTheta;
|
||||
|
||||
if (phi > 1) {
|
||||
triangles[tri].v0 = p10;
|
||||
triangles[tri].v1 = p00;
|
||||
triangles[tri].v2 = p01;
|
||||
tri++;
|
||||
}
|
||||
|
||||
if (phi < numPhi) {
|
||||
triangles[tri].v0 = p11;
|
||||
triangles[tri].v1 = p10;
|
||||
triangles[tri].v2 = p01;
|
||||
tri++;
|
||||
}
|
||||
}
|
||||
}
|
||||
rtcUnmapBuffer(scene,mesh,RTC_VERTEX_BUFFER);
|
||||
rtcUnmapBuffer(scene,mesh,RTC_INDEX_BUFFER);
|
||||
return mesh;
|
||||
}
|
||||
|
||||
/* creates a ground plane */
|
||||
unsigned int createGroundPlane (RTCScene scene)
|
||||
{
|
||||
/* create a triangulated plane with 2 triangles and 4 vertices */
|
||||
unsigned int mesh = rtcNewTriangleMesh (scene, RTC_GEOMETRY_STATIC, 2, 4);
|
||||
|
||||
/* set vertices */
|
||||
Vertex* vertices = (Vertex*) rtcMapBuffer(scene,mesh,RTC_VERTEX_BUFFER);
|
||||
vertices[0].x = -10; vertices[0].y = -2; vertices[0].z = -10;
|
||||
vertices[1].x = -10; vertices[1].y = -2; vertices[1].z = +10;
|
||||
vertices[2].x = +10; vertices[2].y = -2; vertices[2].z = -10;
|
||||
vertices[3].x = +10; vertices[3].y = -2; vertices[3].z = +10;
|
||||
rtcUnmapBuffer(scene,mesh,RTC_VERTEX_BUFFER);
|
||||
|
||||
/* set triangles */
|
||||
Triangle* triangles = (Triangle*) rtcMapBuffer(scene,mesh,RTC_INDEX_BUFFER);
|
||||
triangles[0].v0 = 0; triangles[0].v1 = 2; triangles[0].v2 = 1;
|
||||
triangles[1].v0 = 1; triangles[1].v1 = 2; triangles[1].v2 = 3;
|
||||
rtcUnmapBuffer(scene,mesh,RTC_INDEX_BUFFER);
|
||||
|
||||
return mesh;
|
||||
}
|
||||
|
||||
/* scene data */
|
||||
RTCScene g_scene = NULL;
|
||||
RTCScene g_scene0 = NULL;
|
||||
RTCScene g_scene1 = NULL;
|
||||
RTCScene g_scene2 = NULL;
|
||||
|
||||
Instance* g_instance0 = NULL;
|
||||
Instance* g_instance1 = NULL;
|
||||
Instance* g_instance2 = NULL;
|
||||
Instance* g_instance3 = NULL;
|
||||
|
||||
Vec3f colors[5][4];
|
||||
|
||||
/* called by the C++ code for initialization */
|
||||
extern "C" void device_init (int8* cfg)
|
||||
{
|
||||
/* initialize ray tracing core */
|
||||
rtcInit(cfg);
|
||||
|
||||
/* create scene */
|
||||
g_scene = rtcNewScene(RTC_SCENE_DYNAMIC,RTC_INTERSECT1);
|
||||
|
||||
/* create scene with 4 analytical spheres */
|
||||
g_scene0 = rtcNewScene(RTC_SCENE_STATIC,RTC_INTERSECT1);
|
||||
Sphere* spheres = createAnalyticalSpheres(g_scene0,4);
|
||||
spheres[0].p = Vec3f( 0, 0,+1); spheres[0].r = 0.5f;
|
||||
spheres[1].p = Vec3f(+1, 0, 0); spheres[1].r = 0.5f;
|
||||
spheres[2].p = Vec3f( 0, 0,-1); spheres[2].r = 0.5f;
|
||||
spheres[3].p = Vec3f(-1, 0, 0); spheres[3].r = 0.5f;
|
||||
rtcCommit(g_scene0);
|
||||
|
||||
/* create scene with 4 triangulated spheres */
|
||||
g_scene1 = rtcNewScene(RTC_SCENE_STATIC,RTC_INTERSECT1);
|
||||
createTriangulatedSphere(g_scene1,Vec3f( 0, 0,+1),0.5);
|
||||
createTriangulatedSphere(g_scene1,Vec3f(+1, 0, 0),0.5);
|
||||
createTriangulatedSphere(g_scene1,Vec3f( 0, 0,-1),0.5);
|
||||
createTriangulatedSphere(g_scene1,Vec3f(-1, 0, 0),0.5);
|
||||
rtcCommit(g_scene1);
|
||||
|
||||
/* create scene with 2 triangulated and 2 analytical spheres */
|
||||
g_scene2 = rtcNewScene(RTC_SCENE_STATIC,RTC_INTERSECT1);
|
||||
createTriangulatedSphere(g_scene2,Vec3f( 0, 0,+1),0.5);
|
||||
createAnalyticalSphere (g_scene2,Vec3f(+1, 0, 0),0.5);
|
||||
createTriangulatedSphere(g_scene2,Vec3f( 0, 0,-1),0.5);
|
||||
createAnalyticalSphere (g_scene2,Vec3f(-1, 0, 0),0.5);
|
||||
rtcCommit(g_scene2);
|
||||
|
||||
/* instantiate geometry */
|
||||
createGroundPlane(g_scene);
|
||||
g_instance0 = createInstance(g_scene,g_scene0,0,Vec3f(-2,-2,-2),Vec3f(+2,+2,+2));
|
||||
g_instance1 = createInstance(g_scene,g_scene1,1,Vec3f(-2,-2,-2),Vec3f(+2,+2,+2));
|
||||
g_instance2 = createInstance(g_scene,g_scene2,2,Vec3f(-2,-2,-2),Vec3f(+2,+2,+2));
|
||||
g_instance3 = createInstance(g_scene,g_scene2,3,Vec3f(-2,-2,-2),Vec3f(+2,+2,+2));
|
||||
|
||||
/* set all colors */
|
||||
colors[0][0] = Vec3f(0.25,0,0);
|
||||
colors[0][1] = Vec3f(0.50,0,0);
|
||||
colors[0][2] = Vec3f(0.75,0,0);
|
||||
colors[0][3] = Vec3f(1.00,0,0);
|
||||
|
||||
colors[1][0] = Vec3f(0,0.25,0);
|
||||
colors[1][1] = Vec3f(0,0.50,0);
|
||||
colors[1][2] = Vec3f(0,0.75,0);
|
||||
colors[1][3] = Vec3f(0,1.00,0);
|
||||
|
||||
colors[2][0] = Vec3f(0,0,0.25);
|
||||
colors[2][1] = Vec3f(0,0,0.50);
|
||||
colors[2][2] = Vec3f(0,0,0.75);
|
||||
colors[2][3] = Vec3f(0,0,1.00);
|
||||
|
||||
colors[3][0] = Vec3f(0.25,0.25,0);
|
||||
colors[3][1] = Vec3f(0.50,0.50,0);
|
||||
colors[3][2] = Vec3f(0.75,0.75,0);
|
||||
colors[3][3] = Vec3f(1.00,1.00,0);
|
||||
|
||||
colors[4][0] = Vec3f(1.0,1.0,1.0);
|
||||
colors[4][1] = Vec3f(1.0,1.0,1.0);
|
||||
colors[4][2] = Vec3f(1.0,1.0,1.0);
|
||||
colors[4][3] = Vec3f(1.0,1.0,1.0);
|
||||
|
||||
/* set start render mode */
|
||||
renderPixel = renderPixelStandard;
|
||||
}
|
||||
|
||||
/* task that renders a single screen tile */
|
||||
Vec3fa renderPixelStandard(int x, int y, const Vec3fa& vx, const Vec3fa& vy, const Vec3fa& vz, const Vec3fa& p)
|
||||
{
|
||||
/* initialize ray */
|
||||
RTCRay ray;
|
||||
ray.org = p;
|
||||
ray.dir = normalize(add(mul(x,vx), mul(y,vy), vz));
|
||||
ray.tnear = 0.0f;
|
||||
ray.tfar = inf;
|
||||
ray.geomID = RTC_INVALID_GEOMETRY_ID;
|
||||
ray.primID = RTC_INVALID_GEOMETRY_ID;
|
||||
ray.instID = 4; // set default instance ID
|
||||
ray.mask = -1;
|
||||
ray.time = 0;
|
||||
|
||||
/* intersect ray with scene */
|
||||
rtcIntersect(g_scene,ray);
|
||||
|
||||
/* shade pixels */
|
||||
Vec3f color = Vec3f(0.0f);
|
||||
if (ray.geomID != RTC_INVALID_GEOMETRY_ID)
|
||||
{
|
||||
Vec3f diffuse = Vec3f(0.0f);
|
||||
if (ray.instID == 0) diffuse = colors[ray.instID][ray.primID];
|
||||
else diffuse = colors[ray.instID][ray.geomID];
|
||||
color = add(color,mul(diffuse,0.5));
|
||||
Vec3f lightDir = normalize(Vec3f(-1,-1,-1));
|
||||
|
||||
/* initialize shadow ray */
|
||||
RTCRay shadow;
|
||||
shadow.org = add(ray.org,mul(ray.tfar,ray.dir));
|
||||
shadow.dir = neg(lightDir);
|
||||
shadow.tnear = 0.001f;
|
||||
shadow.tfar = inf;
|
||||
shadow.geomID = 1;
|
||||
shadow.primID = 0;
|
||||
shadow.mask = -1;
|
||||
shadow.time = 0;
|
||||
|
||||
/* trace shadow ray */
|
||||
rtcOccluded(g_scene,shadow);
|
||||
|
||||
/* add light contribution */
|
||||
if (shadow.geomID)
|
||||
color = add(color,mul(diffuse,clamp(-dot(lightDir,normalize(ray.Ng)),0.0f,1.0f)));
|
||||
}
|
||||
return color;
|
||||
}
|
||||
|
||||
/* task that renders a single screen tile */
|
||||
void renderTile(int taskIndex, int* pixels,
|
||||
const int width,
|
||||
const int height,
|
||||
const float time,
|
||||
const Vec3f& vx,
|
||||
const Vec3f& vy,
|
||||
const Vec3f& vz,
|
||||
const Vec3f& p,
|
||||
const int numTilesX,
|
||||
const int numTilesY)
|
||||
{
|
||||
const int tileY = taskIndex / numTilesX;
|
||||
const int tileX = taskIndex - tileY * numTilesX;
|
||||
const int x0 = tileX * TILE_SIZE_X;
|
||||
const int x1 = min(x0+TILE_SIZE_X,width);
|
||||
const int y0 = tileY * TILE_SIZE_Y;
|
||||
const int y1 = min(y0+TILE_SIZE_Y,height);
|
||||
|
||||
for (int y = y0; y<y1; y++) for (int x = x0; x<x1; x++)
|
||||
{
|
||||
/* calculate pixel color */
|
||||
Vec3f color = renderPixel(x,y,vx,vy,vz,p);
|
||||
|
||||
/* write color to framebuffer */
|
||||
unsigned int r = (unsigned int) (255.0f * clamp(color.x,0.0f,1.0f));
|
||||
unsigned int g = (unsigned int) (255.0f * clamp(color.y,0.0f,1.0f));
|
||||
unsigned int b = (unsigned int) (255.0f * clamp(color.z,0.0f,1.0f));
|
||||
pixels[y*width+x] = (b << 16) + (g << 8) + r;
|
||||
}
|
||||
}
|
||||
|
||||
/* called by the C++ code to render */
|
||||
extern "C" void device_render (int* pixels,
|
||||
const int width,
|
||||
const int height,
|
||||
const float time,
|
||||
const Vec3f& vx,
|
||||
const Vec3f& vy,
|
||||
const Vec3f& vz,
|
||||
const Vec3f& p)
|
||||
{
|
||||
/* move instances */
|
||||
float t = 0.7f*time;
|
||||
g_instance0->local2world.p = mul(2.0f,Vec3f(+cos(t),0.0f,+sin(t)));
|
||||
g_instance1->local2world.p = mul(2.0f,Vec3f(-cos(t),0.0f,-sin(t)));
|
||||
g_instance2->local2world.p = mul(2.0f,Vec3f(-sin(t),0.0f,+cos(t)));
|
||||
g_instance3->local2world.p = mul(2.0f,Vec3f(+sin(t),0.0f,-cos(t)));
|
||||
updateInstance(g_scene,g_instance0);
|
||||
updateInstance(g_scene,g_instance1);
|
||||
updateInstance(g_scene,g_instance2);
|
||||
updateInstance(g_scene,g_instance3);
|
||||
rtcCommit (g_scene);
|
||||
|
||||
/* render all pixels */
|
||||
const int numTilesX = (width +TILE_SIZE_X-1)/TILE_SIZE_X;
|
||||
const int numTilesY = (height+TILE_SIZE_Y-1)/TILE_SIZE_Y;
|
||||
launch_renderTile(numTilesX*numTilesY,pixels,width,height,time,vx,vy,vz,p,numTilesX,numTilesY);
|
||||
rtcDebug();
|
||||
}
|
||||
|
||||
/* called by the C++ code for cleanup */
|
||||
extern "C" void device_cleanup ()
|
||||
{
|
||||
rtcDeleteScene (g_scene);
|
||||
rtcDeleteScene (g_scene0);
|
||||
rtcDeleteScene (g_scene1);
|
||||
rtcDeleteScene (g_scene2);
|
||||
rtcExit();
|
||||
}
|
||||
Reference in New Issue
Block a user