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Fix naming in demo.c file
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This commit is contained in:
Mikhail Romanko
2026-07-04 09:09:19 +03:00
parent 931d8ff9df
commit 3dd61dbbf2
1 changed files with 27 additions and 27 deletions
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54
examples/demo.c
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@@ -22,20 +22,20 @@ typedef struct {
float specular;
} Sphere;
static const float gRed[3] = {1.0f, 0.0f, 0.0f};
static const float gGreen[3] = {0.0f, 1.0f, 0.0f};
static const float gBlue[3] = {0.0f, 0.0f, 1.0f};
static const float red[3] = {1.0f, 0.0f, 0.0f};
static const float green[3] = {0.0f, 1.0f, 0.0f};
static const float blue[3] = {0.0f, 0.0f, 1.0f};
static const Sphere gSpheres[] = {
{{-2.0f, 0.0f, -5.0f}, 1.0f, gRed, 0.1f, 20.0f, 0.5f},
{{ 0.0f, 2.0f, -4.0f}, 1.0f, gGreen, 0.5f, 50.0f, 0.8f},
{{ 2.0f, 0.0f, -5.0f}, 1.0f, gBlue, 0.95f, 100.0f, 1.0f}
static const Sphere spheres[] = {
{{-2.0f, 0.0f, -5.0f}, 1.0f, red, 0.1f, 20.0f, 0.5f},
{{ 0.0f, 2.0f, -4.0f}, 1.0f, green, 0.5f, 50.0f, 0.8f},
{{ 2.0f, 0.0f, -5.0f}, 1.0f, blue, 0.95f, 100.0f, 1.0f}
};
static const int gNumSpheres = 3;
static const float gLightPos[3] = {0.0f, 3.0f, -2.0f};
static const float gAmbient = 0.2f;
static const float gOrigin[3] = {0.0f, 0.5f, 0.0f};
static const int numSpheres = 3;
static const float lightPos[3] = {0.0f, 3.0f, -2.0f};
static const float ambient = 0.2f;
static const float origin[3] = {0.0f, 0.5f, 0.0f};
int traceRay(const float origin[3], const float direction[3], float *t,
int *hitIndex, float hitPoint[3], float normal[3]) {
@@ -46,22 +46,22 @@ int traceRay(const float origin[3], const float direction[3], float *t,
closest = 1e10f;
hit = -1;
for (i = 0; i < gNumSpheres; i++) {
if (CgeRay3fIntersectSphere(origin, direction, gSpheres[i].center, gSpheres[i].radius, &t0, p) == 1) {
for (i = 0; i < numSpheres; i++) {
if (CgeRay3fIntersectSphere(origin, direction, spheres[i].center, spheres[i].radius, &t0, p) == 1) {
if (t0 > 0.001f && t0 < closest) {
closest = t0;
hit = i;
CgeVec3fSub(p, gSpheres[i].center, normal);
CgeVec3fSub(p, spheres[i].center, normal);
CgeVec3fNormal(normal, normal);
}
}
}
if (direction[1] != 0.0f) {
float t_plane;
t_plane = (-1.0f - origin[1]) / direction[1];
if (t_plane > 0.001f && t_plane < closest) {
closest = t_plane;
float tPlane;
tPlane = (-1.0f - origin[1]) / direction[1];
if (tPlane > 0.001f && tPlane < closest) {
closest = tPlane;
hit = -2;
}
}
@@ -78,7 +78,7 @@ int traceRay(const float origin[3], const float direction[3], float *t,
hitPoint[2] = origin[2] + closest * direction[2];
if (hit >= 0) {
CgeVec3fSub(hitPoint, gSpheres[hit].center, normal);
CgeVec3fSub(hitPoint, spheres[hit].center, normal);
CgeVec3fNormal(normal, normal);
} else if (hit == -2) {
normal[0] = 0.0f; normal[1] = 1.0f; normal[2] = 0.0f;
@@ -103,12 +103,12 @@ void traceColor(const float origin[3], const float direction[3], float color[3],
}
if (traceRay(origin, direction, &t, &hitIndex, hitPoint, normal) >= 0) {
CgeVec3fSub(gLightPos, hitPoint, toLight);
CgeVec3fSub(lightPos, hitPoint, toLight);
CgeVec3fNormal(toLight, lightDir);
shadow = 1.0f;
if (traceRay(hitPoint, lightDir, &tShadow, &dummyIdx, dummyPoint, dummyNormal) >= 0) {
float lightDist = CgeVec3fDistance(gLightPos, hitPoint);
float lightDist = CgeVec3fDistance(lightPos, hitPoint);
if (tShadow < lightDist) {
shadow = 0.0f;
}
@@ -119,7 +119,7 @@ void traceColor(const float origin[3], const float direction[3], float color[3],
specular = 0.0f;
if (hitIndex >= 0 && NdotL > 0.0f) {
CgeVec3fSub(gOrigin, hitPoint, viewDir);
CgeVec3fSub(origin, hitPoint, viewDir);
CgeVec3fNormal(viewDir, viewDir);
CgeVec3fAdd(viewDir, lightDir, halfVec);
@@ -127,11 +127,11 @@ void traceColor(const float origin[3], const float direction[3], float color[3],
NdotH = CgeVec3fDot(normal, halfVec);
if (NdotH > 0.0f) {
specular = powf(NdotH, gSpheres[hitIndex].shininess) * gSpheres[hitIndex].specular;
specular = powf(NdotH, spheres[hitIndex].shininess) * spheres[hitIndex].specular;
}
}
brightness = gAmbient + diffuse * shadow + specular * shadow;
brightness = ambient + diffuse * shadow + specular * shadow;
if (hitIndex == -2) {
ix = (int)floorf(hitPoint[0]);
@@ -139,13 +139,13 @@ void traceColor(const float origin[3], const float direction[3], float color[3],
tile = ((ix + iz) % 2 == 0) ? 1.0f : 0.3f;
localColor[0] = localColor[1] = localColor[2] = tile * brightness;
} else {
surf = gSpheres[hitIndex].color;
surf = spheres[hitIndex].color;
localColor[0] = surf[0] * brightness;
localColor[1] = surf[1] * brightness;
localColor[2] = surf[2] * brightness;
}
reflectivity = (hitIndex >= 0) ? gSpheres[hitIndex].reflectivity : 0.0f;
reflectivity = (hitIndex >= 0) ? spheres[hitIndex].reflectivity : 0.0f;
if (reflectivity > 0.0f) {
CgeVec3fReflect(direction, normal, reflectDir);
CgeVec3fScale(reflectDir, 0.001f, offset);
@@ -187,7 +187,7 @@ int main() {
direction[1] = v;
direction[2] = -fov;
CgeVec3fNormal(direction, direction);
traceColor(gOrigin, direction, color, 0);
traceColor(origin, direction, color, 0);
if (color[0] < 0.0f) color[0] = 0.0f; else if (color[0] > 1.0f) color[0] = 1.0f;
if (color[1] < 0.0f) color[1] = 0.0f; else if (color[1] > 1.0f) color[1] = 1.0f;