add honey_shader_set_vec3()

4 files changed, 27 insertions, 4 deletions

diff --git a/demo.c b/demo.c
index 1719914..dd55e7f 100644
--- a/demo.c
+++ b/demo.c
@@ -153,6 +153,8 @@ int main() {
   honey_shader_set_int(shader, "box_texture", 0);
   honey_shader_set_int(shader, "happy_texture", 1);
 
+  honey_shader_set_vec3(shader, "extra_color", (vec3){0, 0, 1});
+
   glm_mat4_identity(model);
   //glm_rotate_x(model, glm_rad(-55), model);
   honey_shader_set_mat4(shader, "model", model);
diff --git a/demo.fs b/demo.fs
index 03159de..af6e190 100644
--- a/demo.fs
+++ b/demo.fs
@@ -2,6 +2,8 @@
 
 in vec2 texture_coordinate;
 
+uniform vec3 extra_color;
+
 uniform sampler2D box_texture;
 uniform sampler2D happy_texture;
 
@@ -10,6 +12,6 @@ out vec4 FragColor;
 void main()
 {
   FragColor = mix(texture(box_texture, texture_coordinate),
-                  vec4(texture(happy_texture, texture_coordinate).xyz, 1.0),
+                  vec4(extra_color.xyz, 1.0),
                   0.2);
 }
diff --git a/include/shader.h b/include/shader.h
index cbef3de..262b153 100644
--- a/include/shader.h
+++ b/include/shader.h
@@ -44,11 +44,20 @@ void honey_shader_set_int(honey_shader shader,
                           char* int_name,
                           int number);
 
-/** @brief Set a mat4 uniform
+/** @brief Set a vec3 uniform.
+ * @param[in] shader The shader to which the uniform belongs
+ * @param[in] vector_name The name of the vec3 uniform
+ * @param[in] vector The value of the vector uniform
+ */
+void honey_shader_set_vec3(honey_shader shader,
+                           char* vector_name,
+                           vec3 vector);
+
+/** @brief Set a mat4 uniform.
  *
  * @param[in] shader The shader to which the uniform belongs
- * @param[in] int_name The name of the matrix uniform
- * @param[in] number The value of the matrix uniform
+ * @param[in] matrix_name The name of the matrix uniform
+ * @param[in] matrix The value of the matrix uniform
  */
 void honey_shader_set_mat4(honey_shader shader,
                            char* matrix_name,
diff --git a/src/shader.c b/src/shader.c
index d726523..530cc8f 100644
--- a/src/shader.c
+++ b/src/shader.c
@@ -99,6 +99,16 @@ void honey_shader_set_int(honey_shader shader,
 
 /* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
 
+void honey_shader_set_vec3(honey_shader shader,
+                           char* vector_name,
+                           vec3 vector) {
+  honey_shader_use(shader);
+  unsigned int vector_location = glGetUniformLocation(shader, vector_name);
+  glUniform3fv(vector_location, 1, (float*) vector);
+}
+
+/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
+
 void honey_shader_set_mat4(honey_shader shader,
                            char* matrix_name,
                            mat4 matrix) {