diff options
Diffstat (limited to 'drivers/gles2/rasterizer_canvas_gles2.cpp')
| -rw-r--r-- | drivers/gles2/rasterizer_canvas_gles2.cpp | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/drivers/gles2/rasterizer_canvas_gles2.cpp b/drivers/gles2/rasterizer_canvas_gles2.cpp index 263f210fa2..18b5dd3483 100644 --- a/drivers/gles2/rasterizer_canvas_gles2.cpp +++ b/drivers/gles2/rasterizer_canvas_gles2.cpp @@ -1049,6 +1049,43 @@ void RasterizerCanvasGLES2::draw_generic_textured_rect(const Rect2 &p_rect, cons glDrawArrays(GL_TRIANGLE_FAN, 0, 4); } +void RasterizerCanvasGLES2::draw_lens_distortion_rect(const Rect2 &p_rect, float p_k1, float p_k2, const Vector2 &p_eye_center, float p_oversample) { + Vector2 half_size; + if (storage->frame.current_rt) { + half_size = Vector2(storage->frame.current_rt->width, storage->frame.current_rt->height); + } else { + half_size = OS::get_singleton()->get_window_size(); + } + half_size *= 0.5; + Vector2 offset((p_rect.position.x - half_size.x) / half_size.x, (p_rect.position.y - half_size.y) / half_size.y); + Vector2 scale(p_rect.size.x / half_size.x, p_rect.size.y / half_size.y); + + float aspect_ratio = p_rect.size.x / p_rect.size.y; + + // setup our lens shader + state.lens_shader.bind(); + state.lens_shader.set_uniform(LensDistortedShaderGLES2::OFFSET, offset); + state.lens_shader.set_uniform(LensDistortedShaderGLES2::SCALE, scale); + state.lens_shader.set_uniform(LensDistortedShaderGLES2::K1, p_k1); + state.lens_shader.set_uniform(LensDistortedShaderGLES2::K2, p_k2); + state.lens_shader.set_uniform(LensDistortedShaderGLES2::EYE_CENTER, p_eye_center); + state.lens_shader.set_uniform(LensDistortedShaderGLES2::UPSCALE, p_oversample); + state.lens_shader.set_uniform(LensDistortedShaderGLES2::ASPECT_RATIO, aspect_ratio); + + // bind our quad buffer + _bind_quad_buffer(); + + // and draw + glDrawArrays(GL_TRIANGLE_FAN, 0, 4); + + // and cleanup + glBindBuffer(GL_ARRAY_BUFFER, 0); + + for (int i = 0; i < VS::ARRAY_MAX; i++) { + glDisableVertexAttribArray(i); + } +} + void RasterizerCanvasGLES2::draw_window_margins(int *black_margin, RID *black_image) { } @@ -1148,7 +1185,6 @@ void RasterizerCanvasGLES2::initialize() { _EIDX(1, 1), _EIDX(1, 2), _EIDX(2, 2), _EIDX(2, 2), _EIDX(2, 1), _EIDX(1, 1) }; - ; #undef _EIDX glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(elems), elems, GL_STATIC_DRAW); @@ -1161,6 +1197,10 @@ void RasterizerCanvasGLES2::initialize() { state.canvas_shader.set_conditional(CanvasShaderGLES2::USE_TEXTURE_RECT, true); state.canvas_shader.bind(); + + state.lens_shader.init(); + + state.canvas_shader.set_conditional(CanvasShaderGLES2::USE_PIXEL_SNAP, GLOBAL_DEF("rendering/quality/2d/use_pixel_snap", false)); } void RasterizerCanvasGLES2::finalize() { |