trotFunky/Toy-Raytracer
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base: trotFunky:940c1d706bc5330eead7116d5e006b994f92b707
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trotFunky:main
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compare: trotFunky:e234dda860068e3d10a5da6ade1d9ec23cdbd41c
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trotFunky:main

No commits in common. "940c1d706bc5330eead7116d5e006b994f92b707" and "e234dda860068e3d10a5da6ade1d9ec23cdbd41c" have entirely different histories.
940c1d706b ... e234dda860

6 changed files with 363 additions and 374 deletions
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16
World.cpp
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@ -107,9 +107,6 @@ float World::castRay(float originX, float originY, float orientation) const
* the grid for the other one * the grid for the other one
* - Depending on the orientation, signs must be taken into account * - Depending on the orientation, signs must be taken into account
* to work 360° * to work 360°
* - Those formulas consider regular axes (x→,y↑), however the world is
* built around left-handed axes (x→,y↓), so the rendered world is
* mirrored. This also explains some weird signs for rotations.
*/ */
/* Offsets to get back on the grid from the ray's origin. */ /* Offsets to get back on the grid from the ray's origin. */
float hOffsetX; float hOffsetX;
@ -151,7 +148,7 @@ float World::castRay(float originX, float originY, float orientation) const
if (orientation < 180) { if (orientation < 180) {
vOffsetX = ceilf(originX); vOffsetX = ceilf(originX);
vOffsetY = ceilf(originX) - originX; vOffsetY = ceilf(originX) - originX;
vDir = 1; vDir = +1;
vRound = 0; vRound = 0;
} else { } else {
vOffsetX = floorf(originX); vOffsetX = floorf(originX);
@ -242,8 +239,6 @@ void World::render(sf::RenderWindow& window) const
window.draw(ground); window.draw(ground);
window.draw(ceiling); window.draw(ceiling);
const float worldToCamera = (player.focalLength*2)/player.sensorSize;
/* /*
* Throw rays and draw walls over the ceiling and ground. * Throw rays and draw walls over the ceiling and ground.
* Only throws in the plane, which doesn't work for levels/3D. * Only throws in the plane, which doesn't work for levels/3D.
@ -257,7 +252,7 @@ void World::render(sf::RenderWindow& window) const
} else if (rayAngle > 360) { } else if (rayAngle > 360) {
rayAngle -= 360; rayAngle -= 360;
} }
float obstacleScale = worldToCamera / castRay(player.x, player.y, rayAngle); float obstacleScale = player.focalLength*2/(castRay(player.x, player.y, rayAngle)*player.sensorSize);
/* 2 Is wall height in meters. */ /* 2 Is wall height in meters. */
fillColumn(window, i, obstacleScale); fillColumn(window, i, obstacleScale);
} }
@ -274,7 +269,7 @@ void World::step(const float& stepTime) {
player.rotate(player.currentRotationSpeed*stepTime); player.rotate(player.currentRotationSpeed*stepTime);
#ifdef IMGUI #ifdef IMGUI
if (ImGui::Begin("MapEdit")) { ImGui::Begin("MapEdit");
static int blockToPlace = 1; static int blockToPlace = 1;
/* /*
@ -325,8 +320,7 @@ void World::step(const float& stepTime) {
ImGui::PushStyleColor(ImGuiCol_Header, blockColor); ImGui::PushStyleColor(ImGuiCol_Header, blockColor);
if(ImGui::Selectable("", currentBlock != BlockType::AIR, 0, ImVec2(10, 10))) { if(ImGui::Selectable("", currentBlock != BlockType::AIR, 0, ImVec2(10, 10))) {
map[x + w * y] = map[x + w*y] = currentBlock == (BlockType)blockToPlace ? BlockType::AIR : (BlockType)blockToPlace;
currentBlock == (BlockType) blockToPlace ? BlockType::AIR : (BlockType) blockToPlace;
} }
ImGui::PopStyleColor(2); ImGui::PopStyleColor(2);
ImGui::PopID(); ImGui::PopID();
@ -343,7 +337,7 @@ void World::step(const float& stepTime) {
ImGui::RadioButton("Window", &blockToPlace, (int)BlockType::WINDOW); ImGui::RadioButton("Window", &blockToPlace, (int)BlockType::WINDOW);
ImGui::Unindent(); ImGui::Unindent();
ImGui::EndGroup(); ImGui::EndGroup();
}
ImGui::End(); ImGui::End();
#endif #endif
} }

7
main.cpp
View file

@ -115,12 +115,7 @@ int main()
ImGui::SetNextWindowBgAlpha(0.2f); ImGui::SetNextWindowBgAlpha(0.2f);
ImGui::Begin("FPS", nullptr ,window_flags); ImGui::Begin("FPS", nullptr ,window_flags);
if (fpsDataClock.getElapsedTime().asMilliseconds() > 20) { if (fpsDataClock.getElapsedTime().asMilliseconds() > 20) {
if (frameCount >= 100) { frameTimings[frameCount%100] = static_cast<float>(deltaT.asMicroseconds());
memmove(frameTimings, frameTimings + 1, 99 * sizeof(float));
frameTimings[99] = static_cast<float>(deltaT.asMicroseconds());
} else [[unlikely]] {
frameTimings[frameCount] = static_cast<float>(deltaT.asMicroseconds());
}
frameCount++; frameCount++;
fpsDataClock.restart(); fpsDataClock.restart();
} }