load different textures

crosshair/CrossHair.cpp

@@ -0,0 +1,49 @@
+//
+// Created by lukas on 06.02.22.
+//
+#define GL_GLEXT_PROTOTYPES
+#include <GL/gl.h>
+#include "CrossHair.h"
+
+VertexArray *CrossHair::setVertexArray() {
+    float fade[] = {
+            // face #1
+            -0.02, -0.05,
+            0.02, 0.02,
+            -0.05, 0.05,
+            };
+
+    // Generate a vertex buffer
+    auto *vb = new VertexBuffer(fade, sizeof(fade));
+    auto *va = new VertexArray(*vb);
+    va->add(0,2,3,0);
+
+    return va;
+}
+
+Shader CrossHair::setShader() {
+    const std::string vertsrc =
+#include "vertex.shader"
+
+    const std::string fragsrc =
+#include "fragment.shader"
+
+    Shader s;
+    s.loadShader(vertsrc, "", fragsrc);
+    s.Bind();
+
+    return s;
+}
+
+IndexBuffer *CrossHair::setIndexBuffer() {
+    unsigned indexx[] = {
+            0,2,1
+    };
+
+    return new IndexBuffer(indexx, 3);
+}
+
+void CrossHair::renderr() {
+    glUniform3f(getUniformhandle("u_color"), 1.0f, 1.0f, 1.0f);
+    RenderBase::render();
+}

crosshair/CrossHair.h

@@ -0,0 +1,23 @@
+//
+// Created by lukas on 06.02.22.
+//
+
+#ifndef OPENGLTEST_CROSSHAIR_H
+#define OPENGLTEST_CROSSHAIR_H
+
+
+#include "../blocks/RenderBase.h"
+
+class CrossHair : public RenderBase<CrossHair> {
+public:
+    VertexArray *setVertexArray() override;
+
+    Shader setShader() override;
+
+    IndexBuffer *setIndexBuffer() override;
+
+    void renderr();
+};
+
+
+#endif //OPENGLTEST_CROSSHAIR_H

crosshair/fragment.shader

@@ -0,0 +1,8 @@
+R"(#version 330 core
+out vec4 color;
+uniform vec3 u_color;
+
+void main()
+{
+    color = vec4(u_color, 0.5);
+})";

crosshair/vertex.shader

@@ -0,0 +1,9 @@
+R"(#version 330 core
+// Input vertex data, different for all executions of this shader.
+layout(location = 0) in vec2 vertexPosition_modelspace;
+
+void main(){
+    // Output position of the vertex, in clip space : MVP * position
+    vec4 pos = vec4(vertexPosition_modelspace,0.0,1.0);
+    gl_Position = pos;
+})";