From 0bdb7195de084a3e3c361f8274ee516b89c39e2f Mon Sep 17 00:00:00 2001
From: Martin Opat <martinopat.opat@gmail.com>
Date: Thu, 14 Nov 2024 12:17:09 +0100
Subject: [PATCH] Added a few clearing-up code tweaks

---
 test.cu => deprecated_test.cu |  0
 hello_world.cu                | 11 -----------
 test_heavy.cu                 |  5 +++--
 3 files changed, 3 insertions(+), 13 deletions(-)
 rename test.cu => deprecated_test.cu (100%)

diff --git a/test.cu b/deprecated_test.cu
similarity index 100%
rename from test.cu
rename to deprecated_test.cu
diff --git a/hello_world.cu b/hello_world.cu
index d5941ee..a3b2c6a 100644
--- a/hello_world.cu
+++ b/hello_world.cu
@@ -1,25 +1,14 @@
 #include <iostream>
 #include <cuda_runtime.h>
 
-#define cudaCheckError() {                                      \
-    cudaError_t e = cudaGetLastError();                         \
-    if (e != cudaSuccess) {                                     \
-        printf("CUDA error %s:%d: %s\n", __FILE__, __LINE__,    \
-               cudaGetErrorString(e));                          \
-        exit(EXIT_FAILURE);                                     \
-    }                                                           \
-}
-
 __global__ void hello_from_gpu() {
     printf("Hello from GPU!\n");
 }
 
 int main() {
     hello_from_gpu<<<1, 1>>>();
-    cudaCheckError();
 
     cudaDeviceSynchronize();
-    cudaCheckError();
 
     // Reset device
     cudaDeviceReset();
diff --git a/test_heavy.cu b/test_heavy.cu
index 8e9cd2c..2110eab 100644
--- a/test_heavy.cu
+++ b/test_heavy.cu
@@ -65,9 +65,10 @@ __global__ void renderKernel(unsigned char* framebuffer, Sphere* spheres, int nu
     Vec3 rayOrigin(0, 0, 0);
     Vec3 colCum(0, 0, 0);
 
+    double spp = static_cast<double>(SAMPLES_PER_PIXEL);
     for (int sample = 0; sample < SAMPLES_PER_PIXEL; sample++) {
-        double u = (x + (sample / static_cast<double>(SAMPLES_PER_PIXEL)) - WIDTH / 2.0) / WIDTH;
-        double v = (y + (sample / static_cast<double>(SAMPLES_PER_PIXEL)) - HEIGHT / 2.0) / HEIGHT;
+        double u = (x + (sample / spp) - WIDTH / 2.0) / WIDTH;
+        double v = (y + (sample / spp) - HEIGHT / 2.0) / HEIGHT;
         Vec3 rayDir(u, v, 1.0);
         rayDir = rayDir.normalize();