opengl_x11

commit 4e0a25d96d4878edbd694cac2de4e8bb1cafba16
parent 6c799e60a3675f4fd9f90311e2bdfb2d57f972c0
Author: bsandro <email@bsandro.tech>
Date:   Thu, 20 Nov 2025 22:51:17 +0200

z-buffer

Diffstat:
M
cube.c
 | 
13
++++---------

1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/cube.c b/cube.c
@@ -57,14 +57,7 @@ uniform sampler2D ourTex;
 out vec4 outColor;
 in vec2 texCoord;
 void main() {
-    vec3 color;
-    color.r = 0.2;
-    color.g = 0.6;
-    color.b = 0.1;
-    float c1 = abs(sin(float(iTime)));
-    float c2 = abs(cos(float(iTime)));
-    vec4 modColor = vec4(color+c1-c2, 1.0);
-    outColor = texture(ourTex, texCoord) + modColor;
+    outColor = texture(ourTex, texCoord);
 }
 )";
 
@@ -224,6 +217,8 @@ int main(int argc, char *argv[]) {
         -0.5f,  0.5f, -0.5f,  0.0f, 1.0f
     };
 
+    glEnable(GL_DEPTH_TEST);
+
     GLuint vbo;
     glGenBuffers(1, &vbo);
     glBindBuffer(GL_ARRAY_BUFFER, vbo);
@@ -282,7 +277,7 @@ int main(int argc, char *argv[]) {
         }
 
         glClearColor(0.1f, 0.1f, 0.15f, 1.0f);
-        glClear(GL_COLOR_BUFFER_BIT);
+        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
         GLfloat iTime = glGetUniformLocation(shaderPrg, "iTime");
         glUniform1d(iTime, current_ts()-t_started);