# lv_gltf_view_internal.h (/api/private/libs/gltf/gltf_view/lv_gltf_view_internal_h)



<ApiSummary functions="3" structs="6" macros="11" />

Functions [#functions]

<ApiMember kind="function" name="lv_gltf_view_render" file="private/libs/gltf/gltf_view/lv_gltf_view_internal.h" line="194" url="https://github.com/lvgl/lvgl/tree/e1a0ad863f29742359bc680d6a7d973448ec2285/src/libs/gltf/gltf_view/lv_gltf_view_internal.h#L194">
  lv_gltf_view_render [#lv_gltf_view_render]

  ```c title=" " lineNumbers=1
  GLuint lv_gltf_view_render(lv_gltf_t *viewer)
  ```

  <span className="sr-only">
    Parameters
  </span>

  | Name     | Type                                               |
  | -------- | -------------------------------------------------- |
  | `viewer` | <ApiLink name="lv_gltf_t" display="lv_gltf_t *" /> |
</ApiMember>

<ApiMember kind="function" name="lv_gltf_view_render_deinit" file="private/libs/gltf/gltf_view/lv_gltf_view_internal.h" line="195" url="https://github.com/lvgl/lvgl/tree/e1a0ad863f29742359bc680d6a7d973448ec2285/src/libs/gltf/gltf_view/lv_gltf_view_internal.h#L195">
  lv_gltf_view_render_deinit [#lv_gltf_view_render_deinit]

  ```c title=" " lineNumbers=1
  void lv_gltf_view_render_deinit(lv_gltf_t *viewer)
  ```

  <span className="sr-only">
    Parameters
  </span>

  | Name     | Type                                               |
  | -------- | -------------------------------------------------- |
  | `viewer` | <ApiLink name="lv_gltf_t" display="lv_gltf_t *" /> |
</ApiMember>

<ApiMember kind="function" name="lv_gltf_view_shader_injest_discover_defines" file="private/libs/gltf/gltf_view/lv_gltf_view_internal.h" line="196" url="https://github.com/lvgl/lvgl/tree/e1a0ad863f29742359bc680d6a7d973448ec2285/src/libs/gltf/gltf_view/lv_gltf_view_internal.h#L196">
  lv_gltf_view_shader_injest_discover_defines [#lv_gltf_view_shader_injest_discover_defines]

  ```c title=" " lineNumbers=1
  lv_result_t lv_gltf_view_shader_injest_discover_defines(lv_array_t *result, lv_gltf_model_t *data, fastgltf::Node *node, fastgltf::Primitive *prim)
  ```

  <span className="sr-only">
    Parameters
  </span>

  | Name     | Type                                                           |
  | -------- | -------------------------------------------------------------- |
  | `result` | <ApiLink name="lv_array_t" display="lv_array_t *" />           |
  | `data`   | <ApiLink name="lv_gltf_model_t" display="lv_gltf_model_t *" /> |
  | `node`   | `fastgltf::Node *`                                             |
  | `prim`   | `fastgltf::Primitive *`                                        |
</ApiMember>

Structs [#structs]

<ApiMember kind="struct" name="lv_gltf_renwin_state_t">
  lv_gltf_renwin_state_t [#lv_gltf_renwin_state_t]

  | Member         | Type       | Description |
  | -------------- | ---------- | ----------- |
  | `texture`      | `uint32_t` |             |
  | `renderbuffer` | `uint32_t` |             |
  | `framebuffer`  | `unsigned` |             |
</ApiMember>

<ApiMember kind="struct" name="lv_gltf_view_state_t">
  lv_gltf_view_state_t [#lv_gltf_view_state_t]

  | Member                       | Type                                      | Description |
  | ---------------------------- | ----------------------------------------- | ----------- |
  | `render_state`               | <ApiLink name="lv_gltf_renwin_state_t" /> |             |
  | `opaque_render_state`        | <ApiLink name="lv_gltf_renwin_state_t" /> |             |
  | `opaque_frame_buffer_width`  | `uint64_t`                                |             |
  | `opaque_frame_buffer_height` | `uint64_t`                                |             |
  | `material_variant`           | `uint32_t`                                |             |
  | `render_state_ready`         | `bool`                                    |             |
  | `render_opaque_buffer`       | `bool`                                    |             |
</ApiMember>

<ApiMember kind="struct" name="lv_gltf_view_desc_t">
  lv_gltf_view_desc_t [#lv_gltf_view_desc_t]

  | Member                  | Type                                 | Description                                                      |
  | ----------------------- | ------------------------------------ | ---------------------------------------------------------------- |
  | `pitch`                 | `float`                              |                                                                  |
  | `yaw`                   | `float`                              |                                                                  |
  | `distance`              | `float`                              |                                                                  |
  | `fov`                   | `float`                              |                                                                  |
  | `render_width`          | `int32_t`                            |                                                                  |
  | `render_height`         | `int32_t`                            |                                                                  |
  | `focal_x`               | `float`                              |                                                                  |
  | `focal_y`               | `float`                              |                                                                  |
  | `focal_z`               | `float`                              |                                                                  |
  | `frame_was_antialiased` | `bool`                               |                                                                  |
  | `aa_mode`               | <ApiLink name="lv_gltf_aa_mode_t" /> |                                                                  |
  | `bg_mode`               | <ApiLink name="lv_gltf_bg_mode_t" /> |                                                                  |
  | `blur_bg`               | `float`                              |                                                                  |
  | `env_pow`               | `float`                              | How much to blur the environment background, between 0.0 and 1.0 |
  | `exposure`              | `float`                              | Environmental brightness, 1.8 by default                         |
</ApiMember>

<ApiMember kind="struct" name="lv_opengl_state_t">
  lv_opengl_state_t [#lv_opengl_state_t]

  | Member                 | Type         | Description |
  | ---------------------- | ------------ | ----------- |
  | `blend_enabled`        | `GLboolean`  |             |
  | `blend_src`            | `GLint`      |             |
  | `blend_dst`            | `GLint`      |             |
  | `blend_equation`       | `GLint`      |             |
  | `depth_test_enabled`   | `GLboolean`  |             |
  | `depth_mask`           | `GLboolean`  |             |
  | `depth_func`           | `GLint`      |             |
  | `cull_face_enabled`    | `GLboolean`  |             |
  | `cull_face_mode`       | `GLint`      |             |
  | `front_face`           | `GLint`      |             |
  | `stencil_test_enabled` | `GLboolean`  |             |
  | `stencil_mask`         | `GLuint`     |             |
  | `stencil_func`         | `GLint`      |             |
  | `stencil_ref`          | `GLint`      |             |
  | `stencil_value_mask`   | `GLuint`     |             |
  | `current_vao`          | `GLuint`     |             |
  | `current_vbo`          | `GLuint`     |             |
  | `current_ibo`          | `GLuint`     |             |
  | `current_program`      | `GLuint`     |             |
  | `current_framebuffer`  | `GLuint`     |             |
  | `active_texture`       | `GLint`      |             |
  | `bound_texture_2d`     | `GLuint`     |             |
  | `viewport`             | `GLint[4]`   |             |
  | `scissor_test_enabled` | `GLboolean`  |             |
  | `scissor_box`          | `GLint[4]`   |             |
  | `clear_depth`          | `GLfloat`    |             |
  | `clear_color`          | `GLfloat[4]` |             |
</ApiMember>

<ApiMember kind="struct" name="lv_gltf_model_data_t">
  lv_gltf_model_data_t [#lv_gltf_model_data_t]

  | Member                       | Type                                                           | Description |
  | ---------------------------- | -------------------------------------------------------------- | ----------- |
  | `model`                      | <ApiLink name="lv_gltf_model_t" display="lv_gltf_model_t *" /> |             |
  | `skin_textures`              | <ApiLink name="lv_array_t" />                                  |             |
  | `compiled_shaders`           | <ApiLink name="lv_array_t" />                                  |             |
  | `last_material_index`        | `size_t`                                                       |             |
  | `last_camera_index`          | `uint32_t`                                                     |             |
  | `owned`                      | `bool`                                                         |             |
  | `requires_opaque_pass`       | `bool`                                                         |             |
  | `last_pass_was_transmission` | `bool`                                                         |             |
  | `last_frame_was_antialiased` | `bool`                                                         |             |
  | `last_frame_no_motion`       | `bool`                                                         |             |
  | `_last_frame_no_motion`      | `bool`                                                         |             |
</ApiMember>

<ApiMember kind="struct" name="_lv_gltf_t">
  \_lv_gltf_t [#_lv_gltf_t]

  | Member                   | Type                                                                         | Description |
  | ------------------------ | ---------------------------------------------------------------------------- | ----------- |
  | `texture`                | <ApiLink name="lv_3dtexture_t" />                                            |             |
  | `models`                 | <ApiLink name="lv_array_t" />                                                |             |
  | `state`                  | <ApiLink name="lv_gltf_view_state_t" />                                      |             |
  | `desc`                   | <ApiLink name="lv_gltf_view_desc_t" />                                       |             |
  | `last_desc`              | <ApiLink name="lv_gltf_view_desc_t" />                                       |             |
  | `shader_manager`         | <ApiLink name="lv_opengl_shader_manager_t" />                                |             |
  | `model_loader`           | <ApiLink name="lv_gltf_model_loader_t" display="lv_gltf_model_loader_t *" /> |             |
  | `environment`            | <ApiLink name="lv_gltf_environment_t" display="lv_gltf_environment_t *" />   |             |
  | `view_matrix`            | `fastgltf::math::fmat4x4`                                                    |             |
  | `projection_matrix`      | `fastgltf::math::fmat4x4`                                                    |             |
  | `view_projection_matrix` | `fastgltf::math::fmat4x4`                                                    |             |
  | `camera_pos`             | `fastgltf::math::fvec3`                                                      |             |
  | `owns_environment`       | `bool`                                                                       |             |
</ApiMember>

Macros [#macros]

<ApiMember kind="macro" name="LV_GLTF_GAMMA_BRIGHTEST" file="private/libs/gltf/gltf_view/lv_gltf_view_internal.h" line="32" url="https://github.com/lvgl/lvgl/tree/e1a0ad863f29742359bc680d6a7d973448ec2285/src/libs/gltf/gltf_view/lv_gltf_view_internal.h#L32">
  LV_GLTF_GAMMA_BRIGHTEST [#lv_gltf_gamma_brightest]

  ```c title=" " lineNumbers=1
  #define LV_GLTF_GAMMA_BRIGHTEST "3.5"
  ```
</ApiMember>

<ApiMember kind="macro" name="LV_GLTF_GAMMA_BRIGHTER" file="private/libs/gltf/gltf_view/lv_gltf_view_internal.h" line="33" url="https://github.com/lvgl/lvgl/tree/e1a0ad863f29742359bc680d6a7d973448ec2285/src/libs/gltf/gltf_view/lv_gltf_view_internal.h#L33">
  LV_GLTF_GAMMA_BRIGHTER [#lv_gltf_gamma_brighter]

  ```c title=" " lineNumbers=1
  #define LV_GLTF_GAMMA_BRIGHTER "3.0"
  ```
</ApiMember>

<ApiMember kind="macro" name="LV_GLTF_GAMMA_BRIGHT" file="private/libs/gltf/gltf_view/lv_gltf_view_internal.h" line="34" url="https://github.com/lvgl/lvgl/tree/e1a0ad863f29742359bc680d6a7d973448ec2285/src/libs/gltf/gltf_view/lv_gltf_view_internal.h#L34">
  LV_GLTF_GAMMA_BRIGHT [#lv_gltf_gamma_bright]

  ```c title=" " lineNumbers=1
  #define LV_GLTF_GAMMA_BRIGHT "2.6"
  ```
</ApiMember>

<ApiMember kind="macro" name="LV_GLTF_GAMMA_STANDARD" file="private/libs/gltf/gltf_view/lv_gltf_view_internal.h" line="35" url="https://github.com/lvgl/lvgl/tree/e1a0ad863f29742359bc680d6a7d973448ec2285/src/libs/gltf/gltf_view/lv_gltf_view_internal.h#L35">
  LV_GLTF_GAMMA_STANDARD [#lv_gltf_gamma_standard]

  ```c title=" " lineNumbers=1
  #define LV_GLTF_GAMMA_STANDARD "2.2"
  ```
</ApiMember>

<ApiMember kind="macro" name="LV_GLTF_GAMMA_DARK" file="private/libs/gltf/gltf_view/lv_gltf_view_internal.h" line="36" url="https://github.com/lvgl/lvgl/tree/e1a0ad863f29742359bc680d6a7d973448ec2285/src/libs/gltf/gltf_view/lv_gltf_view_internal.h#L36">
  LV_GLTF_GAMMA_DARK [#lv_gltf_gamma_dark]

  ```c title=" " lineNumbers=1
  #define LV_GLTF_GAMMA_DARK "1.8"
  ```
</ApiMember>

<ApiMember kind="macro" name="LV_GLTF_GAMMA_DARKER" file="private/libs/gltf/gltf_view/lv_gltf_view_internal.h" line="37" url="https://github.com/lvgl/lvgl/tree/e1a0ad863f29742359bc680d6a7d973448ec2285/src/libs/gltf/gltf_view/lv_gltf_view_internal.h#L37">
  LV_GLTF_GAMMA_DARKER [#lv_gltf_gamma_darker]

  ```c title=" " lineNumbers=1
  #define LV_GLTF_GAMMA_DARKER "1.3"
  ```
</ApiMember>

<ApiMember kind="macro" name="LV_GLTF_GAMMA_DARKEST" file="private/libs/gltf/gltf_view/lv_gltf_view_internal.h" line="38" url="https://github.com/lvgl/lvgl/tree/e1a0ad863f29742359bc680d6a7d973448ec2285/src/libs/gltf/gltf_view/lv_gltf_view_internal.h#L38">
  LV_GLTF_GAMMA_DARKEST [#lv_gltf_gamma_darkest]

  ```c title=" " lineNumbers=1
  #define LV_GLTF_GAMMA_DARKEST "0.8"
  ```
</ApiMember>

<ApiMember kind="macro" name="LV_GLTF_DISTANCE_SCALE_FACTOR" file="private/libs/gltf/gltf_view/lv_gltf_view_internal.h" line="40" url="https://github.com/lvgl/lvgl/tree/e1a0ad863f29742359bc680d6a7d973448ec2285/src/libs/gltf/gltf_view/lv_gltf_view_internal.h#L40">
  LV_GLTF_DISTANCE_SCALE_FACTOR [#lv_gltf_distance_scale_factor]

  ```c title=" " lineNumbers=1
  #define LV_GLTF_DISTANCE_SCALE_FACTOR 2.5f
  ```
</ApiMember>

<ApiMember kind="macro" name="LV_GLTF_TRANSMISSION_PASS_SIZE" file="private/libs/gltf/gltf_view/lv_gltf_view_internal.h" line="41" url="https://github.com/lvgl/lvgl/tree/e1a0ad863f29742359bc680d6a7d973448ec2285/src/libs/gltf/gltf_view/lv_gltf_view_internal.h#L41">
  LV_GLTF_TRANSMISSION_PASS_SIZE [#lv_gltf_transmission_pass_size]

  ```c title=" " lineNumbers=1
  #define LV_GLTF_TRANSMISSION_PASS_SIZE 256
  ```
</ApiMember>

<ApiMember kind="macro" name="LV_GLTF_LINEAR_OUTPUT" file="private/libs/gltf/gltf_view/lv_gltf_view_internal.h" line="49" url="https://github.com/lvgl/lvgl/tree/e1a0ad863f29742359bc680d6a7d973448ec2285/src/libs/gltf/gltf_view/lv_gltf_view_internal.h#L49">
  LV_GLTF_LINEAR_OUTPUT [#lv_gltf_linear_output]

  ```c title=" " lineNumbers=1
  #define LV_GLTF_LINEAR_OUTPUT 1
  ```
</ApiMember>

<ApiMember kind="macro" name="LV_GLTF_TONEMAP_GAMMA" file="private/libs/gltf/gltf_view/lv_gltf_view_internal.h" line="56" url="https://github.com/lvgl/lvgl/tree/e1a0ad863f29742359bc680d6a7d973448ec2285/src/libs/gltf/gltf_view/lv_gltf_view_internal.h#L56">
  LV_GLTF_TONEMAP_GAMMA [#lv_gltf_tonemap_gamma]

  ```c title=" " lineNumbers=1
  #define LV_GLTF_TONEMAP_GAMMA LV_GLTF_GAMMA_STANDARD
  ```
</ApiMember>

Dependencies [#dependencies]

<FileIncludes includes="[&#x22;lvgl_public.h&#x22;, &#x22;lv_opengl_shader_internal.h&#x22;, &#x22;lv_3dtexture_private.h&#x22;, &#x22;lv_gltf_data_internal.h&#x22;, &#x22;math.hpp&#x22;, &#x22;types.hpp&#x22;, &#x22;map&#x22;]" includedBy="[&#x22;lvgl_private.h&#x22;]" transitiveIncludes="[&#x22;lv_array.h&#x22;, &#x22;lv_event_private.h&#x22;, &#x22;lv_obj_private.h&#x22;, &#x22;lv_opengles_debug.h&#x22;, &#x22;lv_opengles_private.h&#x22;, &#x22;lv_rb_private.h&#x22;]" />