opengl_x11

commit fbbc45680630f114646d5238823287df17ccf319
parent 31329a6bb7eba8b70dc5cf06302628b5496a6aa9
Author: bsandro <email@bsandro.tech>
Date:   Fri, 21 Nov 2025 00:16:13 +0200

pile of cubes

Diffstat:
M
cube.c
 | 
30
++++++++++++++++++++++++++----

1 file changed, 26 insertions(+), 4 deletions(-)
diff --git a/cube.c b/cube.c
@@ -217,6 +217,19 @@ int main(int argc, char *argv[]) {
         -0.5f,  0.5f, -0.5f,  0.0f+c, 1.0f-c
     };
 
+    vec3 cubePositions[] = {
+        { 0.0f,  0.0f,  0.0f  },
+        { 2.0f,  5.0f, -15.0f },
+        {-1.5f, -2.2f, -2.5f  },
+        {-3.8f, -2.0f, -12.3f },
+        { 2.4f, -0.4f, -3.5f  },
+        {-1.7f,  3.0f, -7.5f  },
+        { 1.3f, -2.0f, -2.5f  },
+        { 1.5f,  2.0f, -2.5f  },
+        { 1.5f,  0.2f, -1.5f  },
+        {-1.3f,  1.0f, -1.5f  }
+    };
+
     glEnable(GL_DEPTH_TEST);
 
     GLuint vbo;
@@ -283,9 +296,9 @@ int main(int argc, char *argv[]) {
         glUniform1d(iTime, current_ts()-t_started);
         //printf("%f\n", fabsf(sinf(current_ts()-t_started)));
 
-        glm_rotate(model, glm_rad(1.f), (vec3){0.5f, 1.f, 0.f});
-        GLuint loc_model = glGetUniformLocation(shaderPrg, "model");
-        glUniformMatrix4fv(loc_model, 1, GL_FALSE, model[0]);
+        //glm_rotate(model, glm_rad(1.f), (vec3){0.5f, 1.f, 0.f});
+        //GLuint loc_model = glGetUniformLocation(shaderPrg, "model");
+        //glUniformMatrix4fv(loc_model, 1, GL_FALSE, model[0]);
         GLuint loc_view = glGetUniformLocation(shaderPrg, "view");
         glUniformMatrix4fv(loc_view, 1, GL_FALSE, view[0]);
         GLuint loc_projection = glGetUniformLocation(shaderPrg, "projection");
@@ -295,7 +308,16 @@ int main(int argc, char *argv[]) {
         glUniform1i(tex, 0);
         glActiveTexture(GL_TEXTURE0);
         glBindTexture(GL_TEXTURE_2D, tex);
-        glDrawArrays(GL_TRIANGLES, 0, sizeof(vertices)/sizeof(vertices[0]));
+        for (int i=0; i<sizeof(cubePositions)/sizeof(cubePositions[0]); ++i) {
+            mat4 model;
+            glm_mat4_identity(model);
+            glm_translate(model, cubePositions[i]);
+            GLfloat angle = 20.f * i;
+            glm_rotate(model, glm_rad(angle), (vec3){ 1.f, 0.3f, 0.5f });
+            GLuint loc_model = glGetUniformLocation(shaderPrg, "model");
+            glUniformMatrix4fv(loc_model, 1, GL_FALSE, model[0]);
+            glDrawArrays(GL_TRIANGLES, 0, sizeof(vertices)/sizeof(vertices[0]));
+        }
 
         glXSwapBuffers(dpy, win);
         usleep(1000*7); // 144hz