From 1be8e337a371068931633b26e327bc7a43271eed Mon Sep 17 00:00:00 2001
From: Persson-dev <sim16.prib@gmail.com>
Date: Sun, 9 Nov 2025 12:13:08 +0100
Subject: [PATCH] matrix values cpu side

---
 Shaders/Compute.glsl | 20 ++++++--------------
 src/Main.cpp         | 25 +++++++++++++++++++++++++
 2 files changed, 31 insertions(+), 14 deletions(-)

diff --git a/Shaders/Compute.glsl b/Shaders/Compute.glsl
index cfa3368..0052231 100644
--- a/Shaders/Compute.glsl
+++ b/Shaders/Compute.glsl
@@ -4,6 +4,10 @@ layout(std430, binding = 3) buffer layoutName {
   float o_Points[];
 };
 
+const uint transformationCount = 3;
+
+layout(location = 1) uniform mat4 transformations[transformationCount];
+
 layout(local_size_x = 64) in;
 
 highp float rand(vec2 co)
@@ -27,24 +31,12 @@ void store(vec3 vect, uint index) {
 }
 
 void main() {
-	const uint total = gl_NumWorkGroups.x * gl_WorkGroupSize.x;
     uint currentIndex = gl_GlobalInvocationID.x;
 	vec3 currentPoint = unpack(currentIndex);
+
 	uint index = uint(rand(currentPoint.xy + currentPoint.z + currentIndex) * 69);
-	mat4 transformation;
-	switch (index % 3) {
-		case 0:
-			transformation = mat4(0.5, 0, 0, 0,   0, 0.5, 0, 0,  0, 0, 0, 0,   0, 0.36, 0, 1);
-			break;
+	mat4 transformation = transformations[index % transformationCount];
 
-		case 1:
-			transformation = mat4(0.5, 0, 0, 0,   0, 0.5, 0, 0,  0, 0, 0, 0,   -0.5, -0.5, 0, 1);
-			break;
-
-		case 2:
-			transformation = mat4(0.5, 0, 0, 0,   0, 0.5, 0, 0,  0, 0, 0, 0,   0.5, -0.5, 0, 1);
-			break;
-	}
 	vec3 result = (transformation * vec4(currentPoint, 1.0)).xyz;
 	store(result, currentIndex);
 }
\ No newline at end of file
diff --git a/src/Main.cpp b/src/Main.cpp
index 6488118..b317f02 100644
--- a/src/Main.cpp
+++ b/src/Main.cpp
@@ -140,6 +140,31 @@ int main() {
 
 	glBindVertexArray(vertexArray);
 
+	std::vector<glm::mat4> transformations = {
+		{
+			0.5f, 0.0f, 0.0f, 0.0f,
+			0.0f, 0.5f, 0.0f, 0.36f,
+			0.0f, 0.0f, 0.0f, 0.0f,
+			0.0f, 0.0f, 0.0f, 1.0f,
+		},
+		{
+			0.5f, 0.0f, 0.0f, -0.5f,
+			0.0f, 0.5f, 0.0f, -0.5f,
+			0.0f, 0.0f, 0.0f, 0.0f,
+			0.0f, 0.0f, 0.0f, 1.0f,
+		},
+		{
+			0.5f, 0.0f, 0.0f, 0.5f,
+			0.0f, 0.5f, 0.0f, -0.5f,
+			0.0f, 0.0f, 0.0f, 0.0f,
+			0.0f, 0.0f, 0.0f, 1.0f,
+		},
+	};
+
+	glUseProgram(s_ComputeShader);
+	glUniformMatrix4fv(1, transformations.size(), true, glm::value_ptr(transformations[0]));
+
+
 	while (!glfwWindowShouldClose(window)) {
 		// ScopedTimer timer("Main Loop");