first commit for versioning

shaders/tShader01.frag

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+// First fragment shader
+
+#version 460
+out vec4 frag_colour;
+
+void main() {
+    frag_colour = vec4(0.0, 0.0, 0.0, 1.0);
+}

shaders/tShader01.vert

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+// First vertex shader
+
+in vec3 vp;
+
+
+void main () {
+    gl_Position = vec4(vp.x + 0.4, vp.y + 0.2, vp.z, 1.0);
+}

shaders/tShader02.frag

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+// First fragment shader
+
+#version 460
+out vec4 frag_colour;
+
+void main() {
+    frag_colour = vec4(0.3, 0.6, 0.6, 1.0);
+}

shaders/tShader02.vert

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+// First vertex shader
+
+in vec3 vp;
+
+
+void main () {
+    gl_Position = vec4(vp.x, vp.y - 0.2, vp.z, 1.0);
+}

shaders/tShader03.frag

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+#version 460
+
+in vec3 colour;
+out vec4 frag_colour;
+
+void main() {
+    frag_colour = vec4(1.0 - colour.r, 1.0 - colour.g, 1.0 - colour.b, 1.0);
+}

shaders/tShader03.vert

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+#version 460
+
+layout(location = 0) in vec3 vertex_position;
+layout(location = 1) in vec3 vertex_colour;
+
+uniform mat4 matrix;
+uniform mat4 view;
+uniform mat4 proj;
+
+out vec3 colour;
+
+void main() {
+    colour = vertex_colour;
+    // multiplication in column major order
+    // currently proj * view * matrix * vec4(vertex_position, 1.0) does not work! projection matrix is wrong?
+    // need to reread the chapter
+    gl_Position = proj * view * matrix * vec4(vertex_position, 1.0);
+}

shaders/test.frag

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+#version 410
+
+// uniform key-word -- we are sending in a variable to the shader programme from the CPU
+uniform vec4 inputColour;
+const vec4 testColour = vec4(0.5f, 1.0f, 1.0f, 1.0f);
+out vec4 fragColour;
+
+void main() {
+    fragColour = inputColour;
+}

shaders/wmo.frag

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+#version 400 core
+out vec4 FragColor;
+
+in vec2 TexCoord;
+uniform sampler2D texSampler;
+
+void main() {
+    // sample the texture
+    vec4 texColor = texture(texSampler, TexCoord);
+
+    if (texColor.a < 0.1) discard;
+
+    //FragColor = vec4(0.6, 0.0, 1.0, 1.0);
+    FragColor = texColor;
+}

shaders/wmo.vert

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+#version 400 core
+layout(location = 0) in vec3 vertex_position; // position
+layout(location = 1) in vec3 vertex_normal; // colour of each vertex point
+layout(location = 2) in vec2 vertex_tex;
+
+out vec2 TexCoord;
+
+uniform mat4 matrix; // must match "matrix" in C code
+uniform mat4 view;   // must match "view" in C code
+uniform mat4 proj;   // must match "proj" in C code
+
+void main() {
+    gl_Position = proj * view * matrix * vec4(vertex_position, 1.0);
+    TexCoord = vertex_tex;
+}