...

examples/28-sdl-graphics.sx

@@ -131,49 +131,8 @@ main :: () {
     glEnable(GL_DEPTH_TEST);
     glDepthFunc(GL_LESS);
 
-    // Shaders
-    vert_src : [:0]u8 = #string glsl
-#version 330 core
-layout (location = 0) in vec3 aPos;
-layout (location = 1) in vec3 aNormal;
-uniform mat4 uMVP;  
-out vec3 vNormal;
-out vec3 vPos;
-
-void main() {
-    gl_Position = uMVP * vec4(aPos, 1.0);
-    vNormal = aNormal;
-    vPos = aPos;
-}
-glsl;
-
-    frag_src : [:0]u8 = #string GLSL
-#version 330 core
-in vec3 vNormal;
-in vec3 vPos;
-out vec4 FragColor;
-uniform vec3 uLightDir;
-uniform float uWire;
-void main() {
-    if (uWire > 0.5) {
-        FragColor = vec4(0.05, 0.05, 0.05, 1.0);
-        return;
-    }
-    vec3 n = normalize(vNormal);
-    vec3 l = normalize(uLightDir);
-    float diff = max(dot(n, l), 0.15);
-    float cx = floor(vPos.x * 2.0 + 0.001);
-    float cy = floor(vPos.y * 2.0 + 0.001);
-    float cz = floor(vPos.z * 2.0 + 0.001);
-    float check = mod(cx + cy + cz, 2.0);
-    vec3 col1 = vec3(0.9, 0.5, 0.2);
-    vec3 col2 = vec3(0.2, 0.6, 0.9);
-    vec3 base = mix(col1, col2, check);
-    FragColor = vec4(base * diff, 1.0);
-}
-GLSL;
-
-    program := create_program(vert_src, frag_src);
+    print("create program: {}\n{}\n", VERT_SHADER_SRC, FRAG_SHADER_SRC);
+    program := create_program(VERT_SHADER_SRC, FRAG_SHADER_SRC);
     glUseProgram(program);
 
     mvp_loc : s32 = glGetUniformLocation(program, "uMVP");
@@ -317,3 +276,44 @@ GLSL;
     SDL_DestroyWindow(window);
     SDL_Quit();
 }
+
+VERT_SHADER_SRC : string = #string GLSL
+#version 330 core
+layout (location = 0) in vec3 aPos;
+layout (location = 1) in vec3 aNormal;
+uniform mat4 uMVP;  
+out vec3 vNormal;
+out vec3 vPos;
+
+void main() {
+    gl_Position = uMVP * vec4(aPos, 1.0);
+    vNormal = aNormal;
+    vPos = aPos;
+}
+GLSL;
+
+FRAG_SHADER_SRC : string = #string GLSL
+#version 330 core
+in vec3 vNormal;
+in vec3 vPos;
+out vec4 FragColor;
+uniform vec3 uLightDir;
+uniform float uWire;
+void main() {
+    if (uWire > 0.5) {
+        FragColor = vec4(0.05, 0.05, 0.05, 1.0);
+        return;
+    }
+    vec3 n = normalize(vNormal);
+    vec3 l = normalize(uLightDir);
+    float diff = max(dot(n, l), 0.15);
+    float cx = floor(vPos.x * 2.0 + 0.001);
+    float cy = floor(vPos.y * 2.0 + 0.001);
+    float cz = floor(vPos.z * 2.0 + 0.001);
+    float check = mod(cx + cy + cz, 2.0);
+    vec3 col1 = vec3(0.9, 0.5, 0.2);
+    vec3 col2 = vec3(0.2, 0.6, 0.9);
+    vec3 base = mix(col1, col2, check);
+    FragColor = vec4(base * diff, 1.0);
+}
+GLSL;