draw triangle

//SHADER SOURCES
const char* vertexShaderSource = R"(
#version 450
vec2 positions[3] = vec2[](
    vec2(0.0, -0.5),
    vec2(0.5, 0.5),
    vec2(-0.5, 0.5)
);

void main() {
    gl_Position = vec4(positions[gl_VertexIndex], 0.0, 1.0);
}
)";

const char* pixelShaderSource = R"(
#version 450

layout(location = 0) out vec4 outColor;

void main() {
    outColor = vec4(1.0, 0.0, 0.0, 1.0);
}
)";

//DRAW CALL
for (int i = 0; i < m_cmdBufs.size();i++) {
            VkCommandBufferBeginInfo vkCommandBufferBeginInfo{};
            vkCommandBufferBeginInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;

            CHECK_VK_RESULT(vkBeginCommandBuffer(m_cmdBufs[i], &vkCommandBufferBeginInfo));

            VkRenderPassBeginInfo vkRenderPassBeginInfo{};
            vkRenderPassBeginInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
            vkRenderPassBeginInfo.renderPass = m_renderPass;
            vkRenderPassBeginInfo.framebuffer = m_fbs[i];

            VkSurfaceCapabilitiesKHR SurfaceCaps;
            vkGetPhysicalDeviceSurfaceCapabilitiesKHR(physicalDevice, surface, &SurfaceCaps);

            vkRenderPassBeginInfo.renderArea.offset = { 0,0 };
            vkRenderPassBeginInfo.renderArea.extent = SurfaceCaps.currentExtent;

            VkClearValue clearValues[2];
            clearValues[0].color = { 0.001f,0.101f,0.001f,1.0f };//background color
            clearValues[1].depthStencil = { 1.0f,0 };

            vkRenderPassBeginInfo.clearValueCount = static_cast<uint32_t>(sizeof(clearValues) / sizeof(VkClearValue));
            vkRenderPassBeginInfo.pClearValues = clearValues;

            vkCmdBeginRenderPass(m_cmdBufs[i], &vkRenderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);

            vkCmdBindPipeline(m_cmdBufs[i], VK_PIPELINE_BIND_POINT_GRAPHICS, m_pipeline);

            vkCmdDraw(m_cmdBufs[i], 3, 1, 0, 0);

            vkCmdEndRenderPass(m_cmdBufs[i]);

            CHECK_VK_RESULT(vkEndCommandBuffer(m_cmdBufs[i]));

        }